318 WHUS52 KMLB 181904 SMWMLB AMZ552-182000- /O.NEW.KMLB.MA.W.0232.260818T1904Z-260818T2000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Melbourne FL 304 PM EDT Tue Aug 18 2026 The National Weather Service in Melbourne has issued a * Special Marine Warning for... Volusia-Brevard County Line to Sebastian Inlet 0-20 nm... * Until 400 PM EDT. * At 304 PM EDT, a strong thunderstorm was located near Melbourne, moving southeast at 15 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, lightning and heavy downpours. Make sure all on board are wearing life jackets. Return to safe harbor if possible. * Locations impacted include... Spessard Holland Park, Melbourne, Melbourne Beach, Eau Gallie, and Indialantic. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to water lightning is occurring with this storm. If caught on the open water stay below deck and, if possible, avoid ungrounded metal objects. Remember, lightning can strike beyond 10 miles away from a thunderstorm. && LAT...LON 2842 8037 2789 8010 2784 8044 2783 8044 2783 8049 2782 8051 2807 8065 2834 8075 TIME...MOT...LOC 1904Z 303DEG 15KT 2815 8072 HAIL...0.00IN WIND...>34KTS $$ Watson  385 WWUS53 KARX 181905 SVSARX Severe Weather Statement National Weather Service La Crosse WI 205 PM CDT Tue Aug 18 2026 MNC109-157-182000- /O.CON.KARX.SV.W.0176.000000T0000Z-260818T2000Z/ Olmsted MN-Wabasha MN- 205 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR NORTHERN OLMSTED AND SOUTH CENTRAL WABASHA COUNTIES... At 205 PM CDT, a severe thunderstorm was located near Oronoco, or 8 miles north of Rochester, moving east at 20 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Elgin around 225 PM CDT. Other locations impacted by this severe thunderstorm include Ringe, County Roads 79 And 2, Potsdam, Century High School, Highway 52 And County 14, Hidden Meadows R V Park, and Chester. This includes Interstate 90 in Minnesota between mile markers 222 and 225. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4419 9255 4418 9212 4393 9223 4412 9265 TIME...MOT...LOC 1905Z 287DEG 17KT 4413 9247 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  992 WWUS53 KARX 181915 SVSARX Severe Weather Statement National Weather Service La Crosse WI 215 PM CDT Tue Aug 18 2026 MNC109-157-182000- /O.CON.KARX.SV.W.0176.000000T0000Z-260818T2000Z/ Olmsted MN-Wabasha MN- 215 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR NORTHERN OLMSTED AND SOUTH CENTRAL WABASHA COUNTIES... At 214 PM CDT, a severe thunderstorm was located 7 miles southeast of Oronoco, or 8 miles northeast of Rochester, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Elgin around 225 PM CDT. Other locations impacted by this severe thunderstorm include Chester, Kings Park, Ringe, Carley State Park, Potsdam, Highway 52 And 55th Northwest, and Century High School. This includes Interstate 90 in Minnesota between mile markers 222 and 225. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4419 9240 4415 9213 4393 9223 4409 9257 4419 9243 TIME...MOT...LOC 1914Z 284DEG 18KT 4412 9240 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  583 WUUS55 KGGW 181920 SVRGGW MTC033-181945- /O.NEW.KGGW.SV.W.0121.260818T1920Z-260818T1945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Glasgow MT 120 PM MDT Tue Aug 18 2026 The National Weather Service in Glasgow has issued a * Severe Thunderstorm Warning for... South central Garfield County in northeastern Montana... * Until 145 PM MDT. * At 120 PM MDT, a severe thunderstorm was located 17 miles south of Edwards, or 33 miles southwest of Jordan, moving east at 20 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will remain over mainly rural areas of south central Garfield County. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4686 10742 4702 10730 4701 10695 4686 10696 TIME...MOT...LOC 1920Z 288DEG 18KT 4689 10723 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Stoinski  170 WWUS53 KARX 181923 SVSARX Severe Weather Statement National Weather Service La Crosse WI 223 PM CDT Tue Aug 18 2026 MNC109-157-182000- /O.CON.KARX.SV.W.0176.000000T0000Z-260818T2000Z/ Olmsted MN-Wabasha MN- 223 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR NORTHEASTERN OLMSTED AND SOUTH CENTRAL WABASHA COUNTIES... At 223 PM CDT, a severe thunderstorm was located near Elgin, or 9 miles northeast of Rochester, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Elgin around 230 PM CDT. Other locations impacted by this severe thunderstorm include Chester, Viola, Carley State Park, and Highway 42 And County 9. This includes Interstate 90 in Minnesota between mile markers 222 and 225. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4415 9213 4393 9223 4402 9243 4415 9233 TIME...MOT...LOC 1923Z 284DEG 18KT 4411 9234 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  212 WHUS51 KAKQ 181925 SMWAKQ ANZ633-658-182030- /O.NEW.KAKQ.MA.W.0189.260818T1925Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Wakefield VA 325 PM EDT Tue Aug 18 2026 The National Weather Service in Wakefield has issued a * Special Marine Warning for... Coastal waters from NC VA border to Currituck Beach Light NC out 20 NM... Currituck Sound... * Until 430 PM EDT. * At 324 PM EDT, a strong thunderstorm was located 8 nm southwest of Knotts Island Bay, moving southeast at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Currituck Beach Light, Currituck Beach, and Currituck Sound. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3626 7592 3632 7595 3633 7598 3646 7606 3645 7610 3646 7612 3654 7603 3634 7572 3620 7585 TIME...MOT...LOC 1924Z 316DEG 9KT 3643 7605 HAIL...0.00IN WIND...>34KTS $$ NB  094 WHUS52 KTAE 181925 SMWTAE GMZ730-755-182100- /O.NEW.KTAE.MA.W.0295.260818T1925Z-260818T2100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tallahassee FL 325 PM EDT Tue Aug 18 2026 The National Weather Service in Tallahassee has issued a * Special Marine Warning for... Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm... Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm... * Until 500 PM EDT. * At 325 PM EDT, strong thunderstorms were located along a line extending from near St. Marks to 19 nm northwest of Marker 24 Barge to 30 nm north of K Tower, moving southeast at 10 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Marker 24 Barge. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3004 8383 2978 8404 2969 8443 2993 8454 2996 8449 3010 8440 3016 8430 3013 8410 3017 8401 TIME...MOT...LOC 1925Z 324DEG 12KT 3025 8415 3013 8433 3014 8454 HAIL...0.00IN WIND...40KTS $$ 02-MONTGOMERY  726 WUUS53 KARX 181928 SVRARX IAC043-WIC043-182030- /O.NEW.KARX.SV.W.0177.260818T1928Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service La Crosse WI 228 PM CDT Tue Aug 18 2026 The National Weather Service in La Crosse has issued a * Severe Thunderstorm Warning for... Central Clayton County in northeastern Iowa... West central Grant County in southwestern Wisconsin... * Until 330 PM CDT. * At 228 PM CDT, a severe thunderstorm was located over Elkader, moving east at 15 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Garnavillo around 240 PM CDT. Guttenberg around 310 PM CDT. Other locations impacted by this severe thunderstorm include Lock And Dam 10, Glen Haven, Motor, Osterdock, Clayton Center, County Roads X 47 And C 7 X, and St. Olaf. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4283 9145 4294 9142 4289 9094 4269 9109 TIME...MOT...LOC 1928Z 285DEG 12KT 4288 9137 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  744 WUUS55 KGGW 181928 SVRGGW MTC069-182030- /O.NEW.KGGW.SV.W.0122.260818T1928Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Glasgow MT 128 PM MDT Tue Aug 18 2026 The National Weather Service in Glasgow has issued a * Severe Thunderstorm Warning for... Southern Petroleum County in northeastern Montana... * Until 230 PM MDT. * At 128 PM MDT, a severe thunderstorm was located 7 miles west of Winnett, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Winnett, Tiegen, and Petrolia Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4720 10864 4712 10801 4675 10820 4675 10821 4693 10861 4710 10861 4710 10866 TIME...MOT...LOC 1928Z 288DEG 18KT 4704 10850 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Stoinski  148 WUUS52 KJAX 181929 SVRJAX FLC019-031-182000- /O.NEW.KJAX.SV.W.0203.260818T1929Z-260818T2000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Jacksonville FL 329 PM EDT Tue Aug 18 2026 The National Weather Service in Jacksonville has issued a * Severe Thunderstorm Warning for... North central Clay County in northeastern Florida... Central Duval County in northeastern Florida... * Until 400 PM EDT. * At 329 PM EDT, a severe thunderstorm was located near Normandy, or near Jacksonville, moving southeast at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Jacksonville, Orange Park, Arlington, Cisco Gardens, Ortega, Bellair-Meadowbrook Terrace, Nas Jax, Normandy, San Marco, and Riverside. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3037 8182 3042 8173 3030 8150 3014 8176 TIME...MOT...LOC 1929Z 323DEG 7KT 3035 8174 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ HESS  381 FZUS72 KMLB 181931 MWSMLB Marine Weather Statement National Weather Service Melbourne FL 331 PM EDT Tue Aug 18 2026 AMZ555-182030- 331 PM EDT Tue Aug 18 2026 A Marine Weather Statement has been issued for the following areas... Sebastian Inlet to Jupiter Inlet 0-20 nm... At 331 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Barefoot Bay, moving southeast at 15 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 2746 8037 2765 8041 2783 8051 2789 8009 2778 8004 2774 8004 2758 7998 2738 7989 2737 8033 $$ Watson  496 WUUS55 KBYZ 181932 SVRBYZ MTC087-182015- /O.NEW.KBYZ.SV.W.0135.260818T1932Z-260818T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Billings MT 132 PM MDT Tue Aug 18 2026 The National Weather Service in Billings has issued a * Severe Thunderstorm Warning for... North Central Rosebud County in southeastern Montana... * Until 215 PM MDT. * At 132 PM MDT, a severe thunderstorm was located 39 miles north of Hysham, moving southeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Mainly rural areas of North Central Rosebud County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4686 10692 4678 10674 4658 10702 4686 10738 TIME...MOT...LOC 1931Z 304DEG 25KT 4686 10720 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Tesar  234 WHUS52 KJAX 181935 SMWJAX AMZ452-182030- /O.NEW.KJAX.MA.W.0199.260818T1935Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Jacksonville FL 335 PM EDT Tue Aug 18 2026 The National Weather Service in Jacksonville has issued a * Special Marine Warning for... Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM... * Until 430 PM EDT. * At 335 PM EDT, a strong thunderstorm was located over Mayport, or 32 nm north of Saint Augustine, moving southeast at 10 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Atlantic Beach, Palm Valley, Jacksonville Beach, Mayport, Talbot Island, Nassau Sound Approach Buoy 6a, Saint Johns Lighted Buoy, and Guana River State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. If your vessel is caught offshore, immediately secure for heavy weather. Ensure all crew members are wearing USCG approved Type I life jackets and nonessential crew are below decks. Deploy jack lines and harnesses if available. Check life saving equipment, including batteries on handheld radios, for readiness. && LAT...LON 3058 8154 3045 8107 3036 8106 3029 8103 3000 8097 3007 8140 3010 8141 3022 8147 3034 8148 3038 8151 3045 8149 3051 8150 3054 8154 TIME...MOT...LOC 1935Z 304DEG 9KT 3043 8141 HAIL...<.75IN WIND...40KTS $$ HESS  521 WUUS53 KARX 181936 SVRARX MNC169-WIC011-063-121-182015- /O.NEW.KARX.SV.W.0178.260818T1936Z-260818T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service La Crosse WI 236 PM CDT Tue Aug 18 2026 The National Weather Service in La Crosse has issued a * Severe Thunderstorm Warning for... Eastern Winona County in southeastern Minnesota... Southeastern Buffalo County in west central Wisconsin... Northern La Crosse County in west central Wisconsin... Southern Trempealeau County in west central Wisconsin... * Until 315 PM CDT. * At 236 PM CDT, severe thunderstorms were located along a line extending from near Galesville to Stockton, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Severe thunderstorms will be near... Winona, Trempealeau, and Galesville around 240 PM CDT. Holmen and Brice Prairie around 255 PM CDT. Dakota around 300 PM CDT. Other locations impacted by these severe thunderstorms include North Side Of La Crosse, Lock And Dam 5 A, Camp Decorah, Dodge, Perrot State Park, Stevenstown, and Ridgeway. This includes the following highways... Interstate 90 in Minnesota between mile markers 249 and 276. Interstate 90 in Wisconsin between mile markers 1 and 6. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4410 9187 4423 9136 4394 9097 4385 9124 4385 9172 TIME...MOT...LOC 1936Z 319DEG 22KT 4415 9132 4403 9174 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  495 WWUS53 KARX 181938 SVSARX Severe Weather Statement National Weather Service La Crosse WI 238 PM CDT Tue Aug 18 2026 MNC157-181948- /O.CAN.KARX.SV.W.0176.000000T0000Z-260818T2000Z/ Wabasha MN- 238 PM CDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WABASHA COUNTY IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. && LAT...LON 4399 9237 4409 9232 4408 9216 4393 9223 TIME...MOT...LOC 1938Z 305DEG 21KT 4401 9225 $$ MNC109-182000- /O.CON.KARX.SV.W.0176.000000T0000Z-260818T2000Z/ Olmsted MN- 238 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR EAST CENTRAL OLMSTED COUNTY... At 238 PM CDT, a severe thunderstorm was located over Eyota, or 11 miles east of Rochester, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Eyota around 245 PM CDT. Other locations impacted by this severe thunderstorm include Chester, Viola, and Highway 42 And County 9. This includes Interstate 90 in Minnesota between mile markers 222 and 225. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4399 9237 4409 9232 4408 9216 4393 9223 TIME...MOT...LOC 1938Z 305DEG 21KT 4401 9225 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  410 WWUS52 KJAX 181941 SVSJAX Severe Weather Statement National Weather Service Jacksonville FL 341 PM EDT Tue Aug 18 2026 FLC019-031-182000- /O.CON.KJAX.SV.W.0203.000000T0000Z-260818T2000Z/ Clay FL-Duval FL- 341 PM EDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR NORTH CENTRAL CLAY AND SOUTH CENTRAL DUVAL COUNTIES... At 341 PM EDT, a severe thunderstorm was located over Riverside, or over Jacksonville, moving southeast at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Jacksonville, Orange Park, Nas Jax, Ortega, Normandy, Bellair-Meadowbrook Terrace, San Marco, Riverside, Lakeside, and Jacksonville Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3035 8181 3038 8173 3028 8154 3014 8176 TIME...MOT...LOC 1941Z 323DEG 7KT 3033 8172 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ HESS  308 WHUS53 KGRB 181945 SMWGRB LMZ521-182145- /O.NEW.KGRB.MA.W.0052.260818T1945Z-260818T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Green Bay WI 245 PM CDT Tue Aug 18 2026 The National Weather Service in Green Bay has issued a * Special Marine Warning for... Central Bay of Green Bay... * Until 445 PM CDT. * At 245 PM CDT, a severe thunderstorm was located over Crivitz, or 18 NM northwest of Marinette, moving east at 30 knots. HAZARD...Large hail and wind gusts to 34 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * The strong thunderstorm will be near... Chambers Island around 340 PM CDT. Eagle Bluff Light around 355 PM CDT. Other locations impacted by this strong thunderstorm include Sister Bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4529 8698 4530 8707 4525 8708 4526 8711 4519 8712 4518 8717 4515 8717 4517 8724 4505 8728 4504 8732 4497 8737 4499 8763 4509 8759 4508 8759 4507 8758 4515 8760 4529 8744 4541 8735 4541 8695 4535 8694 TIME...MOT...LOC 1944Z 275DEG 27KT 4524 8800 MAX HAIL SIZE...>.75 IN MAX WIND GUST...34 KTS $$ Kurimski  108 WUUS53 KGRB 181944 SVRGRB WIC075-182030- /O.NEW.KGRB.SV.W.0136.260818T1944Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Green Bay WI 244 PM CDT Tue Aug 18 2026 The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... Central Marinette County in northeastern Wisconsin... * Until 330 PM CDT. * At 244 PM CDT, a severe thunderstorm was located over Crivitz, or 21 miles northwest of Marinette, moving east at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Other locations impacted by the severe thunderstorm include Middle Inlet, Lake Noquebay, Loomis and Mcallister. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && LAT...LON 4517 8811 4532 8809 4535 8786 4534 8785 4535 8783 4535 8776 4537 8773 4537 8767 4535 8765 4534 8765 4529 8769 4527 8770 4526 8771 4524 8771 4523 8773 4521 8773 4520 8774 4517 8774 4515 8770 TIME...MOT...LOC 1944Z 269DEG 22KT 4524 8801 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$  051 WUUS52 KJAX 181946 SVRJAX FLC019-031-109-182015- /O.NEW.KJAX.SV.W.0204.260818T1946Z-260818T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Jacksonville FL 346 PM EDT Tue Aug 18 2026 The National Weather Service in Jacksonville has issued a * Severe Thunderstorm Warning for... Northwestern St. Johns County in northeastern Florida... Northeastern Clay County in northeastern Florida... South central Duval County in northeastern Florida... * Until 415 PM EDT. * At 346 PM EDT, a severe thunderstorm was located over Bellair-Meadowbrook Terrace, or over Orange Park, moving south at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Orange Park, Green Cove Springs, Mandarin, Fruit Cove, Fleming Island, Oakleaf Plantation, Switzerland, Bellair-Meadowbrook Terrace, Nas Jax, and Doctors Inlet. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3016 8188 3026 8160 3008 8148 2994 8167 2997 8182 TIME...MOT...LOC 1946Z 340DEG 8KT 3017 8174 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ HESS  840 FZUS72 KTAE 181946 MWSTAE Marine Weather Statement National Weather Service Tallahassee FL 346 PM EDT Tue Aug 18 2026 GMZ730-755-182100- /O.CON.KTAE.MA.W.0295.000000T0000Z-260818T2100Z/ 346 PM EDT Tue Aug 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 500 PM EDT... For the following areas... Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm... Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm... At 346 PM EDT, strong thunderstorms were located along a line extending from near St. Marks to 15 nm northwest of Marker 24 Barge to 26 nm north of K Tower, moving southeast at 10 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar indicated. IMPACT...Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. Locations impacted include... Marker 24 Barge. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3004 8383 2978 8404 2969 8443 2993 8454 2996 8449 3010 8440 3016 8430 3013 8410 3017 8401 TIME...MOT...LOC 1946Z 324DEG 12KT 3020 8411 3008 8429 3009 8450 HAIL...0.00IN WIND...49KTS $$ 02-MONTGOMERY  862 WUUS53 KARX 181947 SVRARX MNC045-109-169-182030- /O.NEW.KARX.SV.W.0179.260818T1947Z-260818T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service La Crosse WI 247 PM CDT Tue Aug 18 2026 The National Weather Service in La Crosse has issued a * Severe Thunderstorm Warning for... Southwestern Winona County in southeastern Minnesota... Southeastern Olmsted County in southeastern Minnesota... Northeastern Fillmore County in southeastern Minnesota... * Until 330 PM CDT. * At 247 PM CDT, a severe thunderstorm was located over Dover, or 16 miles east of Rochester, moving east at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... St. Charles and Dover around 250 PM CDT. Lewiston around 310 PM CDT. Other locations impacted by this severe thunderstorm include Saratoga, Whitewater State Park, Arendahl, County Roads 9 And 10, County Roads 6 And 33, Pilot Mound, and Wyattville. This includes Interstate 90 in Minnesota between mile markers 226 and 248. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4407 9217 4404 9183 4385 9172 4384 9173 4381 9173 4381 9204 4393 9223 TIME...MOT...LOC 1947Z 284DEG 20KT 4399 9215 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  858 WWUS53 KARX 181950 SVSARX Severe Weather Statement National Weather Service La Crosse WI 250 PM CDT Tue Aug 18 2026 MNC169-WIC011-063-121-182015- /O.CON.KARX.SV.W.0178.000000T0000Z-260818T2015Z/ Winona MN-Buffalo WI-La Crosse WI-Trempealeau WI- 250 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR SOUTHEASTERN WINONA...SOUTHEASTERN BUFFALO...NORTHERN LA CROSSE AND SOUTHERN TREMPEALEAU COUNTIES... At 250 PM CDT, severe thunderstorms were located along a line extending from near Galesville to near Winona, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. These severe storms will be near... Trempealeau around 255 PM CDT. Holmen and Brice Prairie around 300 PM CDT. Dakota around 305 PM CDT. La Crosse, Onalaska, and French Island around 310 PM CDT. La Crosse Airport around 315 PM CDT. Other locations impacted by these severe thunderstorms include North Side Of La Crosse, Camp Decorah, Perrot State Park, Stevenstown, Ridgeway, New Hartford, and Severson Coulee. This includes the following highways... Interstate 90 in Minnesota between mile markers 254 and 276. Interstate 90 in Wisconsin between mile markers 1 and 6. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4403 9172 4418 9129 4394 9097 4385 9124 4385 9162 TIME...MOT...LOC 1950Z 319DEG 22KT 4410 9126 4398 9168 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  478 WWUS55 KGGW 181950 SVSGGW Severe Weather Statement National Weather Service Glasgow MT 150 PM MDT Tue Aug 18 2026 MTC033-182000- /O.EXP.KGGW.SV.W.0121.000000T0000Z-260818T1945Z/ Garfield MT- 150 PM MDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL GARFIELD COUNTY HAS EXPIRED... The storm which prompted the warning has moved out of the area. Therefore, the warning has been allowed to expire. && LAT...LON 4686 10742 4702 10730 4701 10695 4686 10696 TIME...MOT...LOC 1950Z 288DEG 18KT 4685 10703 $$ Stoinski  711 WWUS53 KARX 181951 SVSARX Severe Weather Statement National Weather Service La Crosse WI 251 PM CDT Tue Aug 18 2026 IAC043-WIC043-182030- /O.CON.KARX.SV.W.0177.000000T0000Z-260818T2030Z/ Clayton IA-Grant WI- 251 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR CENTRAL CLAYTON AND WEST CENTRAL GRANT COUNTIES... At 251 PM CDT, a severe thunderstorm was located near Garnavillo, or near Guttenberg, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Guttenberg around 255 PM CDT. Other locations impacted by this severe thunderstorm include Lock And Dam 10, Glen Haven, Motor, Osterdock, County Roads X 47 And C 7 X, J Wood Campground, and Clayton. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4281 9135 4291 9129 4289 9094 4269 9109 TIME...MOT...LOC 1951Z 287DEG 19KT 4282 9122 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  760 FZUS72 KMLB 181953 MWSMLB Marine Weather Statement National Weather Service Melbourne FL 353 PM EDT Tue Aug 18 2026 AMZ552-572-182100- 353 PM EDT Tue Aug 18 2026 A Marine Weather Statement has been issued for the following areas... Volusia-Brevard County Line to Sebastian Inlet 0-20 nm... Volusia-Brevard County Line to Sebastian Inlet 20-60 nm... At 353 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from 13 nm east of Port Canaveral to 18 nm east of Satellite Beach to Roseland, moving southeast at 20 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. Frequent cloud to water lightning is occurring with these storms. If caught on the open water stay below deck and, if possible, avoid ungrounded metal objects. Remember, lightning can strike beyond 10 miles away from a thunderstorm. && LAT...LON 2782 8051 2797 8059 2837 8041 2850 7954 2829 7954 2800 7942 $$ Watson  238 WWUS53 KARX 181953 SVSARX Severe Weather Statement National Weather Service La Crosse WI 253 PM CDT Tue Aug 18 2026 MNC045-109-169-182030- /O.CON.KARX.SV.W.0179.000000T0000Z-260818T2030Z/ Winona MN-Olmsted MN-Fillmore MN- 253 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR SOUTHWESTERN WINONA...SOUTHEASTERN OLMSTED AND NORTHEASTERN FILLMORE COUNTIES... At 253 PM CDT, a severe thunderstorm was located over Dover, or 18 miles east of Rochester, moving east at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. Quarter sized hail has been reported with this storm. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... St. Charles around 300 PM CDT. Lewiston around 315 PM CDT. Other locations impacted by this severe thunderstorm include Saratoga, Whitewater State Park, Arendahl, County Roads 9 And 10, County Roads 6 And 33, Pilot Mound, and Wyattville. This includes Interstate 90 in Minnesota between mile markers 226 and 248. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4407 9217 4404 9183 4385 9172 4384 9173 4381 9173 4381 9204 4393 9223 TIME...MOT...LOC 1953Z 284DEG 20KT 4398 9210 HAIL THREAT...OBSERVED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  230 WWUS55 KBYZ 181954 SVSBYZ Severe Weather Statement National Weather Service Billings MT 154 PM MDT Tue Aug 18 2026 MTC087-182015- /O.CON.KBYZ.SV.W.0135.000000T0000Z-260818T2015Z/ Rosebud MT- 154 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM MDT FOR NORTH CENTRAL ROSEBUD COUNTY... At 154 PM MDT, a severe thunderstorm was located 37 miles north of Hysham, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Mainly rural areas of North Central Rosebud County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4686 10692 4678 10674 4658 10702 4686 10731 TIME...MOT...LOC 1932Z 301DEG 19KT 4687 10719 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Tesar  840 WWUS52 KJAX 181956 SVSJAX Severe Weather Statement National Weather Service Jacksonville FL 356 PM EDT Tue Aug 18 2026 FLC019-031-109-182015- /O.CON.KJAX.SV.W.0204.000000T0000Z-260818T2015Z/ St. Johns FL-Clay FL-Duval FL- 356 PM EDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR NORTHWESTERN ST. JOHNS...NORTHEASTERN CLAY AND SOUTH CENTRAL DUVAL COUNTIES... At 356 PM EDT, a severe thunderstorm was located over Orange Park, moving south at 10 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Orange Park, Green Cove Springs, Mandarin, Fruit Cove, Fleming Island, Oakleaf Plantation, Switzerland, Bellair-Meadowbrook Terrace, Nas Jax, and Doctors Inlet. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3016 8188 3026 8160 3008 8148 2994 8167 2997 8182 TIME...MOT...LOC 1956Z 340DEG 8KT 3015 8173 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ HESS  221 WWUS53 KARX 181956 SVSARX Severe Weather Statement National Weather Service La Crosse WI 256 PM CDT Tue Aug 18 2026 WIC011-182006- /O.CAN.KARX.SV.W.0178.000000T0000Z-260818T2015Z/ Buffalo WI- 256 PM CDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BUFFALO COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for southeastern Minnesota...and west central Wisconsin. && LAT...LON 4403 9156 4404 9157 4411 9137 4390 9108 4385 9124 4385 9154 4403 9158 TIME...MOT...LOC 1956Z 324DEG 25KT 4401 9128 4391 9160 $$ MNC169-WIC063-121-182015- /O.CON.KARX.SV.W.0178.000000T0000Z-260818T2015Z/ Winona MN-La Crosse WI-Trempealeau WI- 256 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR SOUTHEASTERN WINONA...NORTHWESTERN LA CROSSE AND SOUTH CENTRAL TREMPEALEAU COUNTIES... At 256 PM CDT, severe thunderstorms were located along a line extending from near Holmen to 10 miles south of Winona, moving southeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. Winds up to 50 mph have been reported with this storm. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. These severe storms will be near... Onalaska, Holmen, Dakota, and Brice Prairie around 300 PM CDT. La Crosse and French Island around 305 PM CDT. West Salem and La Crosse Airport around 310 PM CDT. Other locations impacted by these severe thunderstorms include North Side Of La Crosse, Perrot State Park, The Valley View Mall, New Hartford, County Roads M And W, Dresbach, and New Amsterdam. This includes the following highways... Interstate 90 in Minnesota between mile markers 261 and 276. Interstate 90 in Wisconsin between mile markers 1 and 7. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4403 9156 4404 9157 4411 9137 4390 9108 4385 9124 4385 9154 4403 9158 TIME...MOT...LOC 1956Z 324DEG 25KT 4401 9128 4391 9160 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Skow  771 WWUS53 KGRB 181956 SVSGRB Severe Weather Statement National Weather Service Green Bay WI 256 PM CDT Tue Aug 18 2026 WIC075-182030- /O.CON.KGRB.SV.W.0136.000000T0000Z-260818T2030Z/ Marinette WI- 256 PM CDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR CENTRAL MARINETTE COUNTY... At 256 PM CDT, a severe thunderstorm was located 6 miles east of Crivitz, or 16 miles northwest of Marinette, moving east at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Other locations impacted by the severe thunderstorm include Lake Noquebay, Loomis and Mcallister. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && LAT...LON 4516 8796 4532 8795 4535 8786 4534 8785 4535 8783 4535 8776 4537 8773 4537 8767 4535 8765 4534 8765 4529 8769 4527 8770 4526 8771 4524 8771 4523 8773 4521 8773 4520 8774 4517 8774 4515 8770 TIME...MOT...LOC 1944Z 270DEG 24KT 4524 8798 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$  075 FZUS71 KAKQ 181958 MWSAKQ Marine Weather Statement National Weather Service Wakefield VA 358 PM EDT Tue Aug 18 2026 ANZ633-658-182008- /O.CAN.KAKQ.MA.W.0189.000000T0000Z-260818T2030Z/ 358 PM EDT Tue Aug 18 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Coastal waters from NC VA border to Currituck Beach Light NC out 20 NM... Currituck Sound... The thunderstorm has weakened and no longer poses a significant threat to boaters. && LAT...LON 3626 7592 3632 7595 3633 7598 3646 7606 3645 7610 3646 7612 3654 7603 3634 7572 3620 7585 TIME...MOT...LOC 1954Z 316DEG 9KT 3637 7598 $$ NB