773 WWUS55 KBYZ 071001 SVSBYZ Severe Weather Statement National Weather Service Billings MT 401 AM MDT Mon Sep 7 2026 MTC065-071011- /O.EXP.KBYZ.SV.W.0148.000000T0000Z-260907T1000Z/ Musselshell MT- 401 AM MDT Mon Sep 7 2026 ...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR NORTHEASTERN MUSSELSHELL COUNTY... The storm which prompted the warning has weakened below severe limits, and has exited the warned area. Therefore, the warning has been allowed to expire. However, gusty winds and heavy rain are still possible over this area for the next half hour as another cluster of thunderstorms moves into the area from the south. && LAT...LON 4662 10818 4675 10836 4675 10813 4676 10784 4673 10782 4673 10783 4671 10783 4671 10782 4670 10782 4667 10780 4665 10782 4664 10782 4663 10784 TIME...MOT...LOC 0948Z 241DEG 20KT 4673 10800 $$  071 WHUS52 KTAE 071006 SMWTAE GMZ770-772-071130- /O.NEW.KTAE.MA.W.0369.260907T1006Z-260907T1130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tallahassee FL 506 AM CDT Mon Sep 7 2026 The National Weather Service in Tallahassee has issued a * Special Marine Warning for... Waters from Mexico Beach to Apalachicola FL from 20 to 60 NM... Waters from Okaloosa-Walton County Line to Mexico Beach from 20 to 60 NM... * Until 630 AM CDT. * At 506 AM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 24 nm southeast of Okaloosa Deep Water Reef to 43 nm southwest of Port St. Joe to 20 nm south of Empire Mica Wreck, moving southwest at 15 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Waterspouts can quickly form and capsize boats...damage vessels...and create suddenly higher waves. Make sure all on board are in a secure location and wearing life jackets. Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Empire Mica Wreck. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3003 8639 2995 8613 2973 8578 2954 8573 2941 8559 2936 8536 2927 8517 2926 8498 2891 8498 2869 8528 2865 8546 2883 8594 2901 8620 2925 8640 TIME...MOT...LOC 1006Z 040DEG 15KT 2973 8615 2929 8587 2899 8546 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ 02-MONTGOMERY  171 FZUS74 KLIX 071046 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 546 AM CDT Mon Sep 7 2026 GMZ554-557-575-577-071215- 546 AM CDT Mon Sep 7 2026 ...A CLUSTER OF STRONG THUNDERSTORMS OVER THE WATERS... The areas affected include... Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm... Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm... Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM... Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM... At 546 AM CDT, Doppler radar indicated a cluster of strong thunderstorms, capable of producing winds to around 30 knots and weak waterspouts. This cluster of thunderstorms is generally located along a line extending from 29 nm east of Southwest Pass Of the Mississippi River to 24 nm east of Pilottown to 47 nm south of Farewell Buoy, moving northwest at 10 knots. Mariners can expect widespread gusty winds to around 30 knots, higher waves and dangerous lightning strikes. Boaters should seek safe harbor immediately until this activity passes. Brief, weak waterspouts are possible with this activity. Remain on alert in case warnings are issued for waterspout development. && LAT...LON 2904 8909 2940 8896 2969 8834 2934 8816 2905 8860 2879 8881 $$ Zeringue  085 FZUS74 KLIX 071048 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 548 AM CDT Mon Sep 7 2026 GMZ553-554-572-575-071215- 548 AM CDT Mon Sep 7 2026 A Marine Weather Statement has been issued for the following areas... Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm... Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... At 548 AM CDT, Doppler radar indicated a cluster of strong thunderstorms, capable of producing winds to around 30 knots and weak waterspouts. This cluster of thunderstorms is generally located near Southwest Pass Of the Mississippi River, moving southwest at 10 knots. Mariners can expect widespread gusty winds to around 30 knots, higher waves and dangerous lightning strikes. Boaters should seek safe harbor immediately until this activity passes. Brief, weak waterspouts are possible with this activity. Remain on alert in case warnings are issued for waterspout development. && LAT...LON 2911 8949 2894 8907 2863 8920 2888 8974 $$ Zeringue  921 WGUS73 KFSD 071051 FFSFSD Flash Flood Statement National Weather Service Sioux Falls SD 551 AM CDT Mon Sep 7 2026 IAC149-193-071101- /O.EXP.KFSD.FF.W.0015.000000T0000Z-260907T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Plymouth IA-Woodbury IA- 551 AM CDT Mon Sep 7 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 6 AM CDT EARLY THIS MORNING FOR SOUTHEASTERN PLYMOUTH AND NORTHEASTERN WOODBURY COUNTIES... The heavy rain has ended. Flash flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. && LAT...LON 4257 9613 4267 9606 4258 9586 4256 9586 4256 9583 4252 9574 4243 9579 4249 9599 $$ SG  535 WHUS54 KLIX 071055 SMWLIX GMZ553-554-071230- /O.NEW.KLIX.MA.W.0328.260907T1055Z-260907T1230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service New Orleans LA 555 AM CDT Mon Sep 7 2026 The National Weather Service in New Orleans has issued a * Special Marine Warning for... Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... * Until 730 AM CDT. * At 555 AM CDT, a cluster of severe thunderstorms capable of producing waterspouts was located 8 nm east of Southwest Pass Of the Mississippi River, moving southwest at 10 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can quickly form and capsize boats...damage vessels and oil rigs...and create suddenly higher waves. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Southwest Pass Of the Mississippi River. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds will be dangerous for boaters or anyone near the water. Boaters should avoid waterspouts and never try to navigate near them. Make sure all on board are wearing life jackets. Seek shelter or move to safe harbor until hazardous weather passes. && LAT...LON 2883 8966 2905 8939 2895 8908 2863 8922 2862 8924 TIME...MOT...LOC 1055Z 029DEG 10KT 2892 8922 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ Zeringue