National Weather Service United States Department of Commerce

Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Measuring and Reporting Snow to the National Weather Service

The National Weather Service needs your help!  During snow storms, your snow depth measurement, especially if you live in a rural area, is valuable information for determining the impact of the event and accuracy of our forecasts.  When it snows, we encourage you to find a simple yard stick and take snow depth measurements every 3 to 6 hours -- more often if conditions are rapidly changing.  Please report your snow depth (in inches) using our Storm Report Form.  Your report will be immediately sent to and viewed by a NWS forecaster.

Taking accurate snow observations is very important. Please click the following slides for a short primer on how to correctly measure snow depth.

 
   
Report your snow depth measurement on the Storm Report Form
   
Thanks to CoCoRaHS for the images used on this page.  CoCoRaHS is an acronym for the Community Collaborative Rain, Hail and Snow Network. CoCoRaHS is a unique non-profit community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail and snow).  To join CoCoRaHS, go to https://www.cocorahs.org