535 FZUS71 KOKX 130900 MWSOKX Marine Weather Statement National Weather Service New York NY 500 AM EDT Thu Aug 13 2026 ANZ332-350-380-131000- 500 AM EDT Thu Aug 13 2026 ...STRONG THUNDERSTORMS OVER THE WATERS... The areas affected include... Moriches Inlet to Montauk Point NY out 60 NM... Long Island Sound East of the Mouth of the Connecticut River... At 500 AM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near South Kingstown to near Montauk Point to 8 nm north of Buoy 44017, moving east at 25 knots. strong thunderstorms will be near... Montauk Shoal and Montauk Point around 505 AM EDT. 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. && LAT...LON 4079 7218 4124 7187 4107 7186 4051 7143 $$ NV  819 WWUS53 KOAX 130914 SVSOAX Severe Weather Statement National Weather Service Omaha/Valley Nebraska 414 AM CDT Thu Aug 13 2026 NEC039-053-177-130923- /O.CAN.KOAX.SV.W.0351.000000T0000Z-260813T0930Z/ Cuming NE-Washington NE-Dodge NE- 414 AM CDT Thu Aug 13 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CUMING...WASHINGTON AND CENTRAL DODGE COUNTIES IS CANCELLED... The storms which prompted the warning have weakened. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 800 AM CDT for southwestern and west central Iowa...and northeastern and east central Nebraska. && LAT...LON 4174 9610 4170 9608 4170 9611 4168 9613 4168 9644 4174 9644 4174 9656 4194 9655 4195 9614 4192 9614 4191 9616 4187 9615 4184 9611 4182 9611 4180 9606 TIME...MOT...LOC 0913Z 269DEG 41KT 4188 9634 4173 9609 4154 9626 $$ NEC021-130930- /O.CON.KOAX.SV.W.0351.000000T0000Z-260813T0930Z/ Burt NE- 414 AM CDT Thu Aug 13 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT FOR BURT COUNTY... At 413 AM CDT, severe thunderstorms were located along a line extending from 6 miles north of Craig to 3 miles west of Mondamin to 5 miles northwest of Kennard, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe thunderstorms will remain over mainly rural areas of Burt County, including the following locations... Summit Lake State Recreation Area and Pelican Point State Recreation Area. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4174 9610 4170 9608 4170 9611 4168 9613 4168 9644 4174 9644 4174 9656 4194 9655 4195 9614 4192 9614 4191 9616 4187 9615 4184 9611 4182 9611 4180 9606 TIME...MOT...LOC 0913Z 269DEG 41KT 4188 9634 4173 9609 4154 9626 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ KG  511 WGUS55 KSLC 130916 FFWSLC UTC025-053-131215- /O.NEW.KSLC.FF.W.0073.260813T0916Z-260813T1215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Salt Lake City UT 316 AM MDT Thu Aug 13 2026 The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... West Central Kane County in southern Utah... East Central Washington County in southwestern Utah... * Until 615 AM MDT. * At 316 AM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.25 and 0.5 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Zion National Park. The Narrows, the Subway, Behunin Canyon, Keyhole, Pine and Spry Slot Canyons and all other slot canyons and normally dry washes in the area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3711 11290 3711 11293 3735 11311 3744 11286 3714 11271 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ CRK  599 FZUS71 KOKX 130916 MWSOKX Marine Weather Statement National Weather Service New York NY 516 AM EDT Thu Aug 13 2026 ANZ331-335-340-131015- 516 AM EDT Thu Aug 13 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Central Long Island Sound... Peconic and Gardiners Bays... At 516 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Mouth of the Housatonic River, moving east at 30 knots. The strong thunderstorm will be near... Central Long Island Sound around 535 AM EDT. Horton Point and Mattituck Inlet around 550 AM EDT. Dering Harbor, Shelter Island Sound, and Shelter Island around 600 AM EDT. 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 4119 7225 4116 7223 4113 7216 4099 7229 4099 7231 4095 7243 4097 7257 4100 7257 4098 7261 4105 7306 4123 7304 $$ NV  809 WWUS53 KOAX 130922 SVSOAX Severe Weather Statement National Weather Service Omaha/Valley Nebraska 422 AM CDT Thu Aug 13 2026 NEC021-130932- /O.EXP.KOAX.SV.W.0351.000000T0000Z-260813T0930Z/ Burt NE- 422 AM CDT Thu Aug 13 2026 ...THE SEVERE THUNDERSTORM WARNING FOR BURT COUNTY WILL EXPIRE AT 430 AM CDT... The storms which prompted the warning have moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 800 AM CDT for southwestern and west central Iowa...and northeastern and east central Nebraska. && LAT...LON 4174 9610 4170 9608 4170 9611 4168 9613 4168 9644 4174 9644 4174 9656 4194 9655 4195 9614 4192 9614 4191 9616 4187 9615 4184 9611 4182 9611 4180 9606 TIME...MOT...LOC 0922Z 270DEG 41KT 4188 9620 4173 9595 4154 9612 $$ KG  269 FZUS71 KBOX 130927 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 527 AM EDT Thu Aug 13 2026 ANZ235-237-256-131030- 527 AM EDT Thu Aug 13 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Rhode Island Sound... At 527 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Block Island, moving east at 30 knots. Locations impacted include... Buoy 44097 Southeast Of Block Island, Block Island Sound, The Coastal Waters West Of Block Island, and The Coastal Waters Between Block Island And Marthas Vineyard. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect gusty winds to around 30 knots...briefly rough seas and lightning strikes. Consider heading for safe harbor until this storm passes. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible and keep away from ungrounded metal objects. && LAT...LON 4120 7183 4135 7105 4098 7094 4100 7180 $$ Dooley  432 WUUS53 KOAX 130927 SVROAX IAC085-133-165-131015- /O.NEW.KOAX.SV.W.0352.260813T0927Z-260813T1015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Omaha/Valley Nebraska 427 AM CDT Thu Aug 13 2026 The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Southeastern Monona County in west central Iowa... Northeastern Harrison County in southwestern Iowa... Shelby County in southwestern Iowa... * Until 515 AM CDT. * At 427 AM CDT, severe thunderstorms were located along a line extending from 5 miles northwest of Moorhead to 4 miles east of Pisgah to 3 miles south of Magnolia, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Logan, Woodbine, Dunlap, Moorhead, and Soldier around 435 AM CDT. Earling and Panama around 445 AM CDT. Other locations in the path of these severe thunderstorms include Defiance, Harlan and Irwin. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4163 9593 4181 9593 4197 9598 4200 9567 4186 9567 4186 9510 4165 9509 TIME...MOT...LOC 0927Z 271DEG 45KT 4196 9595 4182 9583 4164 9588 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ KG  204 WUUS53 KDMX 130929 SVRDMX IAC047-131015- /O.NEW.KDMX.SV.W.0319.260813T0929Z-260813T1015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Des Moines IA 429 AM CDT Thu Aug 13 2026 The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Southern Crawford County in west central Iowa... * Until 515 AM CDT. * At 429 AM CDT, a severe thunderstorm was located near Pisgah, or 19 miles east of Tekamah, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Denison, Manilla, Dow City, Arion, Buck Grove, Aspinwall, and Denison Municipal Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4200 9567 4206 9510 4186 9510 4187 9567 TIME...MOT...LOC 0929Z 263DEG 46KT 4182 9586 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Hahn  762 WHUS51 KOKX 130933 SMWOKX ANZ331-335-131030- /O.NEW.KOKX.MA.W.0086.260813T0933Z-260813T1030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service New York NY 533 AM EDT Thu Aug 13 2026 The National Weather Service in Upton NY has issued a * Special Marine Warning for... Central Long Island Sound... * Until 630 AM EDT. * At 533 AM EDT, a severe thunderstorm was located near Central Long Island Sound, moving east at 30 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * The severe thunderstorm will be near... Central Long Island Sound around 540 AM EDT. Horton Point and Mattituck Inlet around 555 AM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until this storm passes. Wind gusts in excess of 50 knots, high waves, lightning, and heavy rain are expected with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4119 7226 4116 7223 4114 7230 4114 7232 4102 7253 4098 7253 4100 7257 4098 7261 4105 7306 4123 7304 4122 7302 4123 7301 TIME...MOT...LOC 0933Z 277DEG 30KT 4112 7280 HAIL...0.00IN WIND...50KTS $$ NV  167 WFUS53 KDMX 130944 TORDMX IAC027-047-131015- /O.NEW.KDMX.TO.W.0074.260813T0944Z-260813T1015Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Des Moines IA 444 AM CDT Thu Aug 13 2026 The National Weather Service in Des Moines has issued a * Tornado Warning for... Central Crawford County in west central Iowa... Northwestern Carroll County in west central Iowa... * Until 515 AM CDT. * At 444 AM CDT, a severe thunderstorm capable of producing a tornado was located 6 miles south of Charter Oak, or 13 miles west of Denison, moving northeast at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * This dangerous storm will be near... Denison around 455 AM CDT. Deloit around 500 AM CDT. Other locations impacted by this tornadic thunderstorm include Kiron, Charter Oak, Deloit, Vail, Westside, Schleswig, Denison Municipal Airport, and Arion. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. && LAT...LON 4221 9547 4221 9509 4205 9510 4190 9564 4196 9567 4201 9567 TIME...MOT...LOC 0944Z 237DEG 47KT 4198 9561 TORNADO...RADAR INDICATED MAX HAIL SIZE...0.00 IN $$ Hahn  163 WWUS53 KDMX 130949 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 449 AM CDT Thu Aug 13 2026 IAC047-131015- /O.CON.KDMX.SV.W.0319.000000T0000Z-260813T1015Z/ Crawford IA- 449 AM CDT Thu Aug 13 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR SOUTHERN CRAWFORD COUNTY... At 449 AM CDT, a severe thunderstorm was located over Manteno Recreation Area, or 10 miles south of Denison, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Denison, Manilla, Dow City, Arion, Buck Grove, Aspinwall, and Denison Municipal Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4200 9567 4206 9510 4186 9510 4187 9567 TIME...MOT...LOC 0949Z 259DEG 47KT 4187 9542 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Hahn  297 WWUS53 KOAX 130953 SVSOAX Severe Weather Statement National Weather Service Omaha/Valley Nebraska 453 AM CDT Thu Aug 13 2026 IAC133-131003- /O.CAN.KOAX.SV.W.0352.000000T0000Z-260813T1015Z/ Monona IA- 453 AM CDT Thu Aug 13 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONONA 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 800 AM CDT for southwestern Iowa. && LAT...LON 4164 9566 4178 9569 4186 9567 4186 9510 4165 9509 TIME...MOT...LOC 0953Z 271DEG 45KT 4195 9555 4181 9543 4163 9548 $$ IAC085-165-131015- /O.CON.KOAX.SV.W.0352.000000T0000Z-260813T1015Z/ Harrison IA-Shelby IA- 453 AM CDT Thu Aug 13 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR NORTHEASTERN HARRISON AND NORTHERN SHELBY COUNTIES... At 453 AM CDT, severe thunderstorms were located along a line extending from 6 miles north of Dunlap to 2 miles north of Earling to 6 miles northeast of Persia, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Harlan, Irwin and Defiance. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4164 9566 4178 9569 4186 9567 4186 9510 4165 9509 TIME...MOT...LOC 0953Z 271DEG 45KT 4195 9555 4181 9543 4163 9548 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ KG  657 WGUS75 KTWC 130955 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 255 AM MST Thu Aug 13 2026 AZC021-131005- /O.EXP.KTWC.FF.W.0132.000000T0000Z-260813T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pinal AZ- 255 AM MST Thu Aug 13 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 3 AM MST EARLY THIS MORNING FOR SOUTHEASTERN PINAL COUNTY... The heavy rain has ended. Flood waters have receded. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. && LAT...LON 3260 11092 3257 11096 3254 11094 3259 11089 3260 11089 3261 11091 $$  380 WHUS51 KOKX 130959 SMWOKX ANZ331-332-340-350-131100- /O.NEW.KOKX.MA.W.0087.260813T0959Z-260813T1100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service New York NY 559 AM EDT Thu Aug 13 2026 The National Weather Service in Upton NY has issued a * Special Marine Warning for... Moriches Inlet to Montauk Point NY out 20 NM... Eastern Long Island Sound... Peconic and Gardiners Bays... * Until 700 AM EDT. * At 559 AM EDT, strong thunderstorms were located along a line extending from near Dering Harbor to near Horton Point to near Herod Point, moving east at 30 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will be near... Dering Harbor, Gardiners Bay, Orient Point, Plum Island, Shelter Island Sound, Great Peconic Bay, Horton Point, Little Peconic Bay, Mattituck Inlet, and Shelter Island around 605 AM EDT. Gardiners Island around 615 AM EDT. Napeague Bay around 620 AM EDT. Western Block Island Sound around 625 AM EDT. Montauk Point around 635 AM EDT. Montauk Shoal around 640 AM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until these storms pass. Wind gusts 34 knots or greater, small hail, high waves, lightning, and heavy rain are expected with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4119 7186 4107 7186 4093 7174 4078 7207 4085 7245 4098 7213 4102 7215 4098 7218 4102 7223 4098 7225 4099 7231 4095 7243 4088 7247 4091 7265 4095 7258 4100 7257 4097 7265 4096 7282 4121 7223 TIME...MOT...LOC 0959Z 278DEG 29KT 4114 7234 4106 7251 4096 7274 HAIL...<.75IN WIND...>34KTS $$ NV