Expected

Responsive action SHOULD be taken soon (within next hour)

Maryland, North Carolina, Virginia Freeze Warning | Effective 04/21/2026 00:49

* WHAT...Sub-freezing temperatures expected. * WHERE...Portions of southeast Maryland, northeast North Carolina, and central, east central, north central, south central, and southeast Virginia. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation. Take steps now to protect tender plants from the cold.

Idaho Winter Weather Advisory | Effective 04/21/2026 00:56

* WHAT...Snow expected ABOVE 6500 FEET ELEVATION. Total snow accumulations between 2 and 14 inches. Winds gusting as high as 40 mph. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, Bear River Range, and Caribou Range. * WHEN...From noon Wednesday to midnight MDT Thursday Night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel from Wednesday afternoon through Thursday evening. Slow down and use caution while traveling. Call 5 1 1 or visit

Idaho Winter Weather Advisory | Effective 04/21/2026 00:56

* WHAT...Snow expected ABOVE 6500 FEET ELEVATION. Total snow accumulations between 1 and 10 inches. Winds gusting as high as 40 mph. * WHERE...Big Lost Highlands/Copper Basin, Frank Church Wilderness, Lost River Range, Sawtooth/Stanley Basin, and Sun Valley Region. * WHEN...From midnight tonight to 6 AM MDT Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the travel Wednesday. Slow down and use caution while traveling. Call 5 1 1 or visit

Illinois, Indiana, Kentucky, Missouri Special Weather Statement | Effective 04/21/2026 00:24

Elevated conditions for wildfires are expected this afternoon, mainly between 12 PM and 7 PM CDT. Relative humidity values will fall to 25 to 35% this afternoon, and winds will be breezy from the south, sustained at 15 to 20 mph with gusts to around 30 mph forecast. Vegetation is dry due to ongoing moderate to extreme drought conditions over much of the region. Outdoor burning and activities that involve open sparks or flames are discouraged. Please report all wildfires to local law

Minnesota Special Weather Statement | Effective 04/21/2026 00:28

Dry conditions will lead to near critical fire weather conditions today. Minimum relative humidity values of 15 to 20 percent are expected. However, wind speeds will be light around 5 mph. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.

Arizona, California, Nevada Wind Advisory | Effective 04/21/2026 00:34

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada. * WHEN...From 2 PM PDT /2 PM MST/ this afternoon to 11 PM PDT /11 PM MST/ this evening. * 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, Nevada High Wind Warning | Effective 04/21/2026 00:34

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...In California, Death Valley National Park. In Nevada, Esmeralda and Central Nye County. * WHEN...From 10 AM this morning to 11 PM PDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high-profile vehicles. Watch for falling debris, tree limbs and downed power lines or poles. Use extra caution if you must drive.

California, Nevada Wind Advisory | Effective 04/21/2026 00:34

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...White and Inyo Mountains, Eastern Sierra Slopes, Owens Valley South, Owens Valley North, and Lincoln County. * WHEN...From 10 AM this morning to 11 PM PDT this evening. * 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 Winter Storm Warning | Effective 04/21/2026 00:38

* WHAT...Heavy snow expected. Total snow accumulations 3 to 5 inches above 7,000 feet, with 12 to 18 inches possible at the highest elevations of the Sierra Nevada. Wind gusts as high as 75 mph along the Sierra crest expected. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Sequoia NP, 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 hazardous conditions could impact the Tuesday morning and evening
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