National Weather Service United States Department of Commerce

Severe Storms and Heavy Rain the Mississippi Valley and Midwest; Widespread Heat in the Central US

Severe thunderstorms and showers have the potential for large hail, a few strong tornadoes, damaging winds with gusts over 75 mph, and localized flash flooding across parts of the Mid/Upper Mississippi Valley and Midwest. A widespread heat wave will continue across the Central U.S. and Midwest today. Fire weather concerns persist in the Southwest into the central Rockies and northern California. Read More >

Snow and Sleet

Winter Storm Event Warning Accumulation Criteria
  • Winter Storm Warning
Winter Weather Advisory Event Accumulation Criteria
  • Winter Weather Advisory

 

Ice/Freezing Rain

Ice Storm Warning Criteria
1/4" or Greater Ice Accretion
Winter Weather Advisory Criteria
Trace Amounts to Less Than 1/4" Ice Accretion

 

Criteria for non-precipitation watches/warnings/advisories can be found here.