Severe

Significant threat to life or property

North Dakota Fire Weather Watch | Effective 04/21/2026 19:14

...FIRE WEATHER WATCH FOR MOST OF WESTERN AND PORTIONS OF<br /> SOUTHERN NORTH DAKOTA ON WEDNESDAY... .Critical fire weather conditions are possible on Wednesday<br /> across most of western and portions of southern North Dakota.<br /> Minimum relative humidity will fall to around 10 to 15 percent<br /> in southwest North Dakota, and around 15 to 20 percent across the<br /> northwest and far south central. South to southeast winds will be<br /> strongest in the southern James River Valley with sustained speeds<br />

Illinois Flood Warning | Effective 04/21/2026 19:16

...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at Hardin. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...Until further notice. * ADDITIONAL DETAILS...<br /> - At 9:00 PM CDT Tuesday the stage was 26.3 feet.<br /> - Forecast...The river is expected to remain near 26.3 feet through<br /> Friday and then begin a slow fall.<br />

Iowa, Minnesota, Nebraska, South Dakota Red Flag Warning | Effective 04/21/2026 18:45

* 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, Beadle, Kingsbury, Brookings, Gregory, Jerauld,<br /> Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson,<br /> McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner,<br /> Lincoln, Bon Homme, Yankton, Clay and Union. * WINDS...South 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 17 percent.

Illinois Flood Warning | Effective 04/21/2026 18:47

...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Moderate flooding is occurring and forecasted to continue. * WHERE...Des Plaines River from IL/WI state line downstream to<br /> US-41 in Gurnee, including the Russell gauge. * WHEN...Until further notice.

Illinois Flood Warning | Effective 04/21/2026 18:47

...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Moderate flooding is occurring and forecasted to continue. * WHERE...Des Plaines River from Townline Road in Libertyville<br /> downstream to Palatine Road in Prospect Heights, including the<br /> Lincolnshire gauge.

Illinois Flood Warning | Effective 04/21/2026 18:47

...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Moderate flooding is occurring and forecasted to continue. * WHERE...Des Plaines River from US-41 in Gurnee downstream to<br /> Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Saturday morning.

Illinois Flood Warning | Effective 04/21/2026 18:47

...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Des Plaines River from Palatine Road in Prospect Heights<br /> downstream to Irving Park Road in Chicago, including the Des<br /> Plaines gauge.

California Winter Storm Warning | Effective 04/21/2026 18:47

* WHAT...Heavy snow. Additional snow accumulations between 1 and 3<br /> inches around 7,000 feet and up to one foot at the highest peaks.<br /> Winds gusting as high as 45 mph. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Sequoia NP,<br /> Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...Until 5 PM PDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. The<br /> hazardous conditions could impact the Wednesday morning and<br /> evening commutes. Gusty winds could bring down tree branches.<br />

Illinois Flood Warning | Effective 04/21/2026 18:53

...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at La Salle affecting Bureau, Putnam and La Salle<br /> Counties. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Illinois River from Starved Rock Lock and Dam downstream<br /> to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until Friday morning. * IMPACTS...At 20.0 feet, Agricultural areas in La Salle, Spring<br /> Valley, and Peru are inundated. * ADDITIONAL DETAILS...<br />

Illinois Flood Warning | Effective 04/21/2026 18:56

...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River near Havana affecting Fulton, Cass and Mason<br /> Counties. Illinois River at Beardstown affecting Brown, Morgan, Schuyler<br /> and Cass Counties. ...The Flood Warning is cancelled for the following rivers in<br /> Illinois... Illinois River at Peoria affecting Peoria, Tazewell and Woodford<br /> Counties. .The following forecasts are based on observed precipitation, soil<br /> moisture conditions, and forecast precipitation.
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