Moderate

Possible threat to life or property

Wisconsin Special Weather Statement | Effective 05/18/2026 02:58

At 458 AM CDT, Doppler radar was tracking a strong thunderstorm over Brooklyn, or near Oregon, moving northeast at 45 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 vegetation is possible. Locations impacted include... Eastern Madison, Sun Prairie, Fitchburg, Stoughton, Oregon, McFarland, Monona, Cottage Grove, Deerfield, Cambridge, Brooklyn, and Utica.

Illinois Special Weather Statement | Effective 05/18/2026 02:29

At 428 AM CDT, Doppler radar was tracking a strong thunderstorm near Morrison, moving northeast at 40 mph. HAZARD...Winds in excess of 40 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Morrison, Prophetstown, Erie, Garden Plain, Milledgeville, Fairhaven, Lyndon, Chadwick, Coleta, Emerson, Union Grove, Ustick, Fenton, Round

Missouri Special Weather Statement | Effective 05/18/2026 02:01

At 401 AM CDT, Doppler radar was tracking a strong thunderstorm 7 miles north of Creighton, or 8 miles south of Holden, moving east at 25 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Warrensburg, Clinton, Windsor, Knob Noster, Adrian, Whiteman Air Force Base, Leeton, Urich, Green Ridge, Calhoun, Deepwater, Montrose,

California Wind Advisory | Effective 05/18/2026 02:05

* WHAT...Northeast winds 15 to 25 mph with gusts 30 to 40 mph expected. * WHERE...Santa Clarita Valley. * WHEN...From 7 AM this morning to 3 PM PDT this afternoon. * 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.

California Wind Advisory | Effective 05/18/2026 02:05

* WHAT...Northeast winds 20 to 30 mph with gusts 40 to 50 mph expected. * WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, Northern Ventura County Mountains, Santa Susana Mountains, Southern Ventura County Mountains, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 3 PM PDT this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wyoming Winter Weather Advisory | Effective 05/18/2026 02:14

* WHAT...Snow expected. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as 55 mph. * WHERE...Flaming Gorge and Rock Springs and Green River. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult, especially along Interstate 80. The hazardous conditions could impact the Monday morning commute. Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit

Wyoming Winter Weather Advisory | Effective 05/18/2026 02:14

* WHAT...Snow expected. Total snow accumulations up to 2 inches. Winds gusting as high as 50 mph. * WHERE...Southwest Bighorn Basin and Cody Foothills. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult due to a combination of snow and wind. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...There is potential for a steep gradient in snow totals along the mountains, with snow totals quickly going from around 1 inch to 4 inches or more.

Wyoming Winter Weather Advisory | Effective 05/18/2026 02:14

* WHAT...Snow expected. Additional snow accumulations between 4 and 8 inches. Winds gusting as high as 60 mph. * WHERE...Wind River Mountains West. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult, especially along South Pass. The hazardous conditions could impact the Monday morning commute. Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter .

Wyoming Winter Weather Advisory | Effective 05/18/2026 02:14

* WHAT...Snow expected. Additional snow accumulations up to 6 inches, with the higher amounts expected over southern end of the Bighorn Mountains. Winds gusting as high as 50 mph. * WHERE...Owl Creek and Bridger Mountains, Bighorn Mountains Southeast, Bighorn Mountains West, and Absaroka Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult, especially over mountain passes such as Powder River Pass. Slow down and use caution while traveling.
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