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Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.

Friday, September 10, 2021

SPC Sep 11, 2021 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0744 PM CDT Fri Sep 10 2021 Valid 110100Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE NORTHERN GREAT BASIN NORTHWARD INTO PARTS OF OREGON...IDAHO...AND WYOMING... ...SUMMARY... A few strong to severe gusts remain possible for a few hours over the northern Great Basin, eastern Oregon, southern Idaho and western Wyoming. ...Far eastern OR into western WY and northern NV/UT... Scattered storms have produced several strong to severe measured wind gusts late this afternoon, owing mainly to steep lapse rates combined with moderate southwest flow aloft. The strongest cluster of storms currently exists over eastern OR, beneath the cooler air aloft. However, the 00Z Boise sounding indicates very little instability resides ahead of these storms, therefore the severe threat is expected to be short-lived there. Elsewhere, sporadic convection persists near a surface trough extending from central NV into northern UT and southeastern ID. In the near term, the greatest chance of strong wind gusts appears to extend from northern NV into northern UT where pockets of better instability remain. With the loss of heating this evening, storms are expected to decrease in coverage and intensity. A few strong wind gusts may occur through about 06Z as the upper trough continues to move toward western MT. ..Jewell.. 09/11/2021 Read more LIVE: spc.noaa.gov
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