Expected

Responsive action SHOULD be taken soon (within next hour)

Hazardous Seas Warning - [Severity] | Effective 05/21/2026 12:59

* WHAT...North winds of 20 to 30 kt with gusts to 35 kt with very steep combined seas of 9 to 13 feet. * WHERE...All areas. Strongest winds and highest seas are expected during the afternoons and evenings. From Gold Beach southward and beyond 5 NM from shore, occasional gale force gusts to 40 kt are possible through Thursday evening. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous.

Flood Warning - [Severity] | Effective 05/20/2026 22:12

* WHAT...Flooding caused by an ice jam continues. * WHERE...Russian Mission. * WHEN...Until midnight AKDT Thursday Night. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 908 PM AKDT, the ice jam 10 miles downriver from Russian Mission is still in place as of 4PM Wednesday. The ice jam is about 60 miles long. When the Russian Mission ice jam releases, water levels could rapidly rise again at Russian

Hazardous Seas Warning - [Severity] | Effective 05/21/2026 14:07

* WHAT...Very steep and hazardous seas 9 to 13 feet and north winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside.

Wind Advisory - [Severity] | Effective 05/21/2026 13:03

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph. * WHERE...Municipality of Skagway. * WHEN...Until 1 AM AKDT Friday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.

South Carolina Special Weather Statement - [Severity] | Effective 05/21/2026 14:49

At 549 PM EDT, Doppler radar was tracking a strong thunderstorm 8 miles northwest of Spartanburg, or near Boiling Springs SC, moving north at 10 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include... Boiling Springs SC, Mayo, Chesnee, Cowpens National Battlefield, Lake Bowen, USC Upstate, and Fingerville.

New Mexico Special Weather Statement - [Severity] | Effective 05/21/2026 14:52

At 352 PM MDT, Doppler radar was tracking a strong thunderstorm near Tatum, moving northeast at 15 mph. HAZARD...Wind gusts up to 50 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Tatum, Gladiola, and Tatum Airport. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

South Dakota Special Weather Statement - [Severity] | Effective 05/21/2026 14:53

At 353 PM MDT, Doppler radar was tracking a strong thunderstorm over Rapid City Airport, or 11 miles east of Rapid City, moving northeast at 20 mph. HAZARD...Wind gusts up to 50 mph and half inch size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Southeastern Rapid Valley, New Underwood, Caputa and Rapid City Airport.

Wyoming Special Weather Statement - [Severity] | Effective 05/21/2026 14:54

At 353 PM MDT, the public reported a strong thunderstorm producing a landspout over Burns, or 20 miles east of Cheyenne, moving east at 25 mph. HAZARD...Landspouts. SOURCE...Public. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Pine Bluffs, Burns, Egbert, Hillsdale, and Pine Bluffs Municipal Airport. This includes Interstate 80 in Wyoming between mile markers 379 and 402. If outdoors, consider seeking shelter inside a building.

Nebraska Special Weather Statement - [Severity] | Effective 05/21/2026 14:57

At 357 PM MDT, Doppler radar was tracking a strong thunderstorm 10 miles east of Albin, or 17 miles northwest of Kimball, moving east at 10 mph. HAZARD...Wind gusts up to 50 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Harrisburg. If outdoors, consider seeking shelter inside a building.

Mississippi Flood Warning - [Severity] | Effective 05/21/2026 14:58

...The National Weather Service in New Orleans LA has issued a Flood Warning for the following rivers in Mississippi... West Hobolochitto Creek Near McNeil affecting Pearl River County. For the West Hobolochitto Creek...including McNeil...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...West Hobolochitto Creek near McNeil. * WHEN...From this evening to Saturday evening. * IMPACTS...At 17.0 feet, Some roads in the county inundated but passable. Homes in Westchester Subdivision, Picayune will be
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