Expected

Responsive action SHOULD be taken soon (within next hour)

Indiana Flood Warning | Effective 05/18/2026 12:36

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Boone County in central Indiana... Southern Hamilton County in central Indiana... Hendricks County in central Indiana... Western Johnson County in central Indiana... Marion County in central Indiana... Morgan County in central Indiana... * WHEN...Until 830 PM EDT. * IMPACTS...Low-water crossings are inundated with water and may not be passable. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS...

Michigan Special Weather Statement | Effective 05/18/2026 12:39

At 339 PM EDT, Doppler radar was tracking a strong thunderstorm over Long Rapids, or near Lachine, moving northeast at 50 mph. HAZARD...Wind gusts up to 50 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... Alpena, Presque Isle Light, Lachine, Presque Isle, Long Rapids, Posen, Thompsons Harbor State Park, Cathro, and Lakewood.

Michigan Special Weather Statement | Effective 05/18/2026 12:42

At 341 PM EDT, Doppler radar was tracking a strong thunderstorm over Gagetown, or 7 miles northwest of Cass City, moving north at 40 mph. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Owendale around 345 PM EDT. Pigeon and Elkton around 350 PM EDT. Port Austin around 420 PM EDT.

Ohio Special Weather Statement | Effective 05/18/2026 12:43

At 343 PM EDT, Doppler radar was tracking a strong thunderstorm near Delta, or near Wauseon, moving northeast at 45 mph. HAZARD...Wind gusts up to 50 mph and pea 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... Swanton, Delta, Metamora, Lyons, Oakshade, Seward, Denson, Winameg, Ottokee, and Assumption. This includes Interstate 80 in Ohio between mile markers 35 and 48.

Michigan Special Weather Statement | Effective 05/18/2026 12:00

At 300 PM EDT, Doppler radar was tracking a strong thunderstorm near Livonia, moving northeast at 30 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... Troy, Southfield, Pontiac, Novi, Royal Oak, Birmingham, Rochester, Northville, Detroit Zoo, West Bloomfield, Farmington Hills, Rochester Hills, Madison Heights, Oak Park, Auburn Hills, Ferndale, Hazel Park,

Wyoming Freeze Warning | Effective 05/18/2026 12:00

* WHAT...For the Freeze Warning tonight, sub-freezing temperatures as low as 17 expected. For the Freeze Watch Tuesday night, sub-freezing temperatures as low as 26 possible. * WHERE...Laramie Valley. * WHEN...For the Freeze Warning, from 8 PM this evening to 10 AM MDT Tuesday. For the Freeze Watch, from late Tuesday night through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Wyoming Freeze Warning | Effective 05/18/2026 12:00

* WHAT...For the Freeze Warning tonight, sub-freezing temperatures as low as 16 expected. For the Freeze Watch Tuesday night, sub-freezing temperatures as low as 23 possible. * WHERE...Converse County Lower Elevations. * WHEN...For the Freeze Warning, from 8 PM this evening to 10 AM MDT Tuesday. For the Freeze Watch, from late Tuesday night through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Wyoming Freeze Warning | Effective 05/18/2026 12:00

* WHAT...For the Freeze Warning tonight, sub-freezing temperatures as low as 12 above expected. For the Freeze Watch Tuesday night, sub-freezing temperatures as low as 23 possible. * WHERE...South Laramie Range. * WHEN...For the Freeze Warning, from 8 PM this evening to 10 AM MDT Tuesday. For the Freeze Watch, from Tuesday evening through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Nebraska, Wyoming Freeze Warning | Effective 05/18/2026 12:00

* WHAT...Sub-freezing temperatures as low as 21 expected. * WHERE...In Nebraska, Northern Sioux County, Scotts Bluff County, and Southern Sioux County. In Wyoming, Niobrara County, East Platte County, and Goshen County. * WHEN...From 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

Wyoming Freeze Warning | Effective 05/18/2026 12:00

* WHAT...Sub-freezing temperatures as low as 20 expected. * WHERE...Central Laramie County, Central Laramie Range and Southwest Platte County, East Laramie County, and South Laramie Range Foothills. * WHEN...From 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.
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