Severe

Significant threat to life or property

Iowa, Minnesota, Nebraska, South Dakota Red Flag Warning | Effective 04/21/2026 10:54

The National Weather Service in Sioux Falls has issued a Red Flag<br /> Warning for wind and low relative humidity, which is in effect<br /> from noon to 8 PM CDT Wednesday. * AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In<br /> Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson,<br /> Pipestone and Rock. In Nebraska, Dixon and Dakota. In South<br /> Dakota, Kingsbury, Brookings, Miner, Lake, Moody, McCook,<br /> Minnehaha, Turner, Lincoln, Clay and Union. * WINDS...South 20 to 30 mph with gusts up to 40 mph.

South Dakota Red Flag Warning | Effective 04/21/2026 10:54

The National Weather Service in Sioux Falls has issued a Red Flag<br /> Warning for wind and low relative humidity, which is in effect<br /> from noon to 8 PM CDT Wednesday. The Fire Weather Watch is no<br /> longer in effect. * AFFECTED AREA...In South Dakota, Beadle, Gregory, Jerauld,<br /> Sanborn, Brule, Aurora, Davison, Hanson, Charles Mix, Douglas,<br /> Hutchinson, Bon Homme and Yankton. * WINDS...South 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread<br />

Wisconsin Severe Thunderstorm Warning | Effective 04/21/2026 10:57

At 1257 PM CDT, a severe thunderstorm was located over Raymond, or<br /> near Wind Lake, moving east at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include...<br /> Racine, Mount Pleasant, Sturtevant, Raymond, Yorkville, Wind Point,<br /> Eagle Lake, Caledonia, Elmwood Park, North Bay, Franksville, and<br /> North Cape.<br /> For your protection move to an interior room on the lowest floor of a<br /> building.

Colorado Red Flag Warning | Effective 04/21/2026 10:26

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO<br /> MIDNIGHT MDT WEDNESDAY NIGHT FOR GUSTY WINDS AND LOW RELATIVE<br /> HUMIDITY FOR FIRE WEATHER ZONE 220... * THIS IS A PARTICULARLY DANGEROUS SITUATION * AFFECTED AREA...Fire Weather Zone 220. * TIMING...From 10 AM Wednesday to midnight MDT Wednesday night. * WINDS...Southwest 25 to 35 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Extreme fire danger is expected. Fires will spread<br /> uncontrollably and could be very destructive.<br />

Colorado Red Flag Warning | Effective 04/21/2026 10:26

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO<br /> MIDNIGHT MDT WEDNESDAY NIGHT FOR GUSTY WINDS AND LOW RELATIVE<br /> HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228,<br /> 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING<br /> THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE<br /> HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227,<br /> 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237...

Colorado Fire Weather Watch | Effective 04/21/2026 10:26

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO<br /> MIDNIGHT MDT WEDNESDAY NIGHT FOR GUSTY WINDS AND LOW RELATIVE<br /> HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228,<br /> 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING<br /> THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE<br /> HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227,<br /> 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237...

Nebraska Red Flag Warning | Effective 04/21/2026 10:26

The National Weather Service in Omaha/Valley has issued a Red<br /> Flag Warning for wind and low relative humidity, which is in<br /> effect from noon to 8 PM CDT Wednesday. The Fire Weather Watch is<br /> no longer in effect. * AFFECTED AREA...Knox and Cedar Counties. * TIMING...From noon to 8 PM CDT Wednesday. * WINDS...South 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...Any fires that develop will likely spread rapidly.<br /> Outdoor burning is not recommended.<br />

Nebraska Red Flag Warning | Effective 04/21/2026 10:26

The National Weather Service in Omaha/Valley has issued a Red<br /> Flag Warning for wind and low relative humidity, which is in<br /> effect from noon to 8 PM CDT Wednesday. * AFFECTED AREA...Thurston, Antelope, Pierce, Wayne, Boone,<br /> Madison, Stanton, Cuming, and Platte Counties. * TIMING...From noon to 8 PM CDT Wednesday. * WINDS...South 20 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Any fires that develop will likely spread rapidly.<br /> Outdoor burning is not recommended.<br />

California, Nevada High Wind Warning | Effective 04/21/2026 10:28

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...In California, Death Valley National Park. In Nevada,<br /> Esmeralda and Central Nye County. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines.<br /> Widespread power outages are expected. Travel will be difficult,<br /> especially for high-profile vehicles. Areas of blowing dust will<br /> likely cause reduced visibility.<br /> Watch for falling debris, tree limbs and downed power lines or<br />

New York Flood Warning | Effective 04/21/2026 10:32

...The Flood Warning continues for the following rivers in New<br /> York... Cayuga Lake At Ithaca affecting Tompkins County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Cayuga Lake at Ithaca. * WHEN...Until further notice. * IMPACTS...At 383.5 feet, The lake level is high enough to flood<br /> normally dry areas along the shoreline and may affect some paths,<br /> or roads nearest the shore. * ADDITIONAL DETAILS...<br /> - At 1:00 PM EDT Tuesday the stage was 383.6 feet.<br />
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