390 FZAK78 PAFC 311900 MWSAFC Marine Weather Statement National Weather Service Anchorage AK 1100 AM AKDT Mon Aug 31 2026 PKZ711-010000- Gravel Point to Cape Cleare out to 15 NM- 1100 AM AKDT Mon Aug 31 2026 ...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS CONTINUE THROUGH THIS AFTERNOON... Isolated to widely scattered thunderstorms have developed south of Montague Island. These storms have had a history of producing frequent lightning. Mariners can expect erratic and gusty winds and locally higher waves as well as frequent lightning strikes if around these storms. Additionally, small hail is possible in some of the stronger storms. Thunderstorm activity will taper off through late afternoon to early evening as the activity moves to the southeast. $$  931 WGUS55 KSLC 311900 FFWSLC UTC025-053-312200- /O.NEW.KSLC.FF.W.0109.260831T1900Z-260831T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Salt Lake City UT 100 PM MDT Mon Aug 31 2026 The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... West Central Kane County in southern Utah... East Central Washington County in southwestern Utah... * Until 400 PM MDT. * At 100 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of slot canyons, normally dry washes, creeks, streams, and rivers. * Some locations that will experience flash flooding include... Zion National Park, Springdale, Keyhole and Spry Slot Canyons, Parunuweap Canyon, and the East Fork of the Virgin River. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3713 11290 3716 11301 3723 11295 3727 11282 3718 11271 3711 11283 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ CRK  617 WGUS75 KSLC 311911 FFSSLC Flash Flood Statement National Weather Service Salt Lake City UT 111 PM MDT Mon Aug 31 2026 UTC017-055-311921- /O.EXP.KSLC.FF.W.0104.000000T0000Z-260831T1915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Garfield UT-Wayne UT- 111 PM MDT Mon Aug 31 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 115 PM MDT THIS AFTERNOON FOR NORTH CENTRAL GARFIELD AND SOUTH CENTRAL WAYNE COUNTIES... The heavy rain has ended. Enhanced runoff will continue in the area through the evening and additional flooding is possible. A Flood Watch remains in effect until 900 PM MDT Monday for portions of central, southern, and southwest Utah. && LAT...LON 3815 11125 3832 11140 3839 11111 3802 11083 3794 11122 $$ CRK  722 WWUS55 KVEF 311911 SVSVEF Severe Weather Statement National Weather Service Las Vegas NV 1211 PM PDT Mon Aug 31 2026 AZC015-NVC003-311921- /O.EXP.KVEF.SV.W.0058.000000T0000Z-260831T1915Z/ Mohave AZ-Clark NV- 1211 PM PDT Mon Aug 31 2026 /1211 PM MST Mon Aug 31 2026/ ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 1215 PM PDT /1215 PM MST/ FOR NORTH CENTRAL MOHAVE AND NORTHEASTERN CLARK COUNTIES... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. && LAT...LON 3668 11405 3675 11419 3684 11412 3684 11405 3693 11405 3700 11399 3700 11353 3661 11391 TIME...MOT...LOC 1854Z 213DEG 28KT 3690 11380 $$ JCS  069 WGUS75 KTWC 311915 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 1215 PM MST Mon Aug 31 2026 AZC019-312115- /O.CON.KTWC.FF.W.0175.000000T0000Z-260831T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pima AZ- 1215 PM MST Mon Aug 31 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM MST THIS AFTERNOON FOR NORTHEASTERN PIMA COUNTY... At 1215 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Tucson, Marana, Sahuarita, Green Valley, Davis-Monthan Air Force Base, Casas Adobes, Drexel Heights, Flowing Wells, Corona De Tucson, South Tucson, Three Points, Avra Valley, Pascua Pueblo Yaqui Reservation, Tortolita, East Sahuarita, San Xavier Community, Valencia West, Summit, Tucson Estates and Tucson International Airport. This includes the following highways... Interstate 19 between mile markers 31 and 63. Route 86 between mile markers 146 and 171. Route 77 between mile markers 70 and 74. Interstate 10 between mile markers 233 and 275. Route 286 between mile markers 25 and 45. Route 83 between mile markers 42 and 45. This includes the following Flash Flood Prone Locations... Manville Rd at Brawley Wash, Country Club Rd at Franco Wash, Houghton Rd from I-10 & Sahuarita Rd, Santa Clara Ave at El Vado Wash, 1st Ave north of Fort Lowell Rd, Stone Ave at Mabel St, Sahuarita Rd west of Wilmot Rd, Twin Peaks Rd between Sanders and Sandario, Silverbell Rd near Ina Rd, Camino De La Tierra at the Rillito River, Camino de Oeste from Sweetwater to Gates Pass, Drexel Rd east of Alvernon Way, Ironwood Hills Dr from Shannon to Camino de Oeste, Mark Rd from Jeffery Rd to Los Reales Rd, Mission Rd from Valencia Rd to San Xavier Rd, Old Vail COnnection Rd at Franco Wash, Sunset Rd west of Camino de Oeste and Black Wash at S Camino de Oeste. This includes the following streams and drainages... Brown Wash, Santa Cruz River, Rillito River, Box Canyon Wash, Seco, Arroyo, Cienega Creek, Banner Wash, Sopori Wash, Bolas Blancas Wash, Alambre Wash, Soto Wash, Pantano Wash, Thomas Canyon Wash, Guild Wash, Little Thomas Wash, Robles Wash, Los, Saucito Wash, Demetrie Wash, Arivaca Creek, Oro, Cañada del, South Mendoza Wash, West Branch Santa Cruz River, Mendoza Wash, Blanco Wash, Champurrado Wash, Altar Wash, Peñitas Wash, Fresno Wash, Cerro Prieto Wash, Chico, Arroyo, Gardner Canyon, Old Junction Wash, Fortynine Wash and Brawley Wash. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3176 11069 3171 11146 3233 11134 3250 11129 3250 11121 3224 11086 3204 11076 FLASH FLOOD...RADAR AND GAUGE INDICATED $$ KJS  095 FZCA72 TJSJ 311922 MWSSJU Marine Weather Statement National Weather Service San Juan PR 322 PM AST Mon Aug 31 2026 AMZ711-712-312015- 322 PM AST Mon Aug 31 2026 ...THUNDERSTORMS OVER THE ATLANTIC COASTAL WATERS... The areas affected include... Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N... Coastal Waters of Northern Puerto Rico out 10 NM... * At 322 PM AST, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This strong thunderstorm was located over the northern coastal waters of Puerto Rico, near San Juan Bay, moving northwest at 5 knots. Locations impacted include... Mainly open waters of Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Coastal Waters of Northern Puerto Rico out 10 NM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Report severe weather to the Coast Guard or nearest law enforcement agency. They will relay your report to the National Weather Service office. Mariners can expect gusty winds to around 30 knots, locally higher waves, lightning strikes, and heavy downpours. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 1864 6648 1875 6606 1846 6596 1845 6604 1846 6608 1843 6604 1842 6609 1843 6608 1843 6611 1847 6614 1845 6616 1847 6620 1845 6619 TIME...MOT...LOC 1921Z 143DEG 4KT 1848 6604 $$ DSR  865 WUUS55 KSLC 311945 SVRSLC UTC023-027-312030- /O.NEW.KSLC.SV.W.0115.260831T1945Z-260831T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Salt Lake City UT 145 PM MDT Mon Aug 31 2026 The National Weather Service in Salt Lake City has issued a * Severe Thunderstorm Warning for... Northeastern Millard County in central Utah... Central Juab County in central Utah... * Until 230 PM MDT. * At 145 PM MDT, a severe thunderstorm was located 9 miles southwest of Delta, moving northeast 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... Delta, Hinckley, Oak City, Leamington, Lynndyl, Abraham, Sutherland, Sugarville, and Little Sahara State Park. This includes the following highways... US Route 6 between mile markers 68 and 110. US Route 50 between mile markers 90 and 98. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 11270 3925 11295 3971 11251 3946 11214 TIME...MOT...LOC 1945Z 219DEG 27KT 3930 11274 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CRK  447 WGUS55 KSLC 311948 FFWSLC UTC017-312245- /O.NEW.KSLC.FF.W.0110.260831T1948Z-260831T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Salt Lake City UT 148 PM MDT Mon Aug 31 2026 The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... Central Garfield County in southern Utah... * Until 445 PM MDT. * At 148 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across Pine Creek Box Canyon, likely resulting in water moving downstream through Upper Escalante River Canyon. Up to 0.5 inches of rain have fallen on top of heavy rain that fell earlier today. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks, streams, slot canyons, and normally dry washes. * Some locations that will experience flash flooding include... Pine Creek Box Canyon and Upper Escalante River Canyon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. Remain alert for flooding even in locations not receiving rain. Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3796 11168 3799 11162 3786 11161 3780 11157 3780 11148 3776 11146 3777 11158 3778 11159 3786 11165 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ JAC  335 WGUS55 KSLC 311952 FFWSLC UTC031-312245- /O.NEW.KSLC.FF.W.0111.260831T1952Z-260831T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Salt Lake City UT 152 PM MDT Mon Aug 31 2026 The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... The Silver King Burn Scar in... Northwestern Piute County in central Utah... * Until 445 PM MDT. * At 152 PM MDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain over the Silver King Burn Scar. Between 0.5 and 0.75 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Bullion Canyon, Beaver Creek Canyon, and Deer Creek Canyon drainages. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Silver King Burn Scar. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of areas in and around the Silver King Burn Scar. PRECAUTIONARY/PREPAREDNESS ACTIONS... Intense rainfall is falling over the Silver King burn scar, particularly Beaver Creek. Flash flooding and debris flows initiating within Bullion Canyon, Beaver Creek Canyon and Deer Creek Canyon are expected to travel downstream impacting portions of the city of Marysvale, and US 89 between mile posts 179 and 184. && LAT...LON 3851 11226 3847 11222 3845 11222 3838 11227 3838 11235 3843 11240 3849 11239 FLASH FLOOD...RADAR AND GAUGE INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ AD  729 WGUS55 KSLC 311956 FFWSLC UTC025-053-312200- /O.EXT.KSLC.FF.W.0107.000000T0000Z-260831T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Salt Lake City UT 156 PM MDT Mon Aug 31 2026 The National Weather Service in Salt Lake City has extended the * Flash Flood Warning for... West Central Kane County in southern Utah... East Central Washington County in southwestern Utah... * Until 400 PM MDT. * At 156 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across much of Zion National Park. Up to 1.5 inches of rain have fallen. Flash flooding is ongoing. This Flash Flood Warning has been extended through 4 PM MDT. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of slot canyons, normally dry washes, streams, creeks, and rivers. * Some locations that will experience flash flooding include... Zion National Park including the Subway, the Narrows and all other slot canyons, creeks, normally dry washes and slot canyons in the warning area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3723 11295 3716 11301 3716 11302 3733 11312 3740 11303 3742 11298 3736 11278 3727 11282 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ JAC