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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.

ARLINGTON HEIGHTS WEATHER

Monday, January 31, 2022

SPC Jan 31, 2022 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0204 AM CST Mon Jan 31 2022 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Wednesday. ...Synopsis... A large-scale mid/upper trough extending from the northern Rockies to northwest Mexico will pivot eastward on Wednesday, becoming oriented from the northern Plains to the southern Rockies/northern Mexico by Thursday morning. Moderate deep-layer southwesterly flow will extend from TX to the Great Lakes and Northeast. Meanwhile, south/southeast low-level flow over the Gulf of Mexico will allow 60s F surface dewpoints to spread across the TX Gulf Coast into the Lower MS Valley ahead of an east/southeastward-advancing arctic cold front. A lack of stronger height falls/cooling aloft will lead to poor midlevel lapse rates, though increasing boundary-layer moisture will help support weak destabilization. Large-scale forcing for ascent also will remain weak across the region as the upper trough stays well to the west of the TX coast/Lower MS Valley. Isolated thunderstorms will be possible, though severe convection is not anticipated, and heavy rain will likely be the main hazard. ..Leitman.. 01/31/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)