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MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

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.


Sunday, August 7, 2022

SPC Aug 7, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0214 AM CDT Sun Aug 07 2022 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Little severe weather is anticipated across the CONUS on Tuesday. ...Synopsis and Discussion... A low-amplitude shortwave trough will quickly move out of the Maritimes, allowing for subtle height rises over the Northeast during the day. To the west, an upper low with expansive area of cyclonic flow aloft will spread east from SK/MB into ON, with 40 kt 500 mb winds into ND and northern MN by 00Z. A slow-moving cold front will stretch from southern New England to the OH Valley and into the Ozarks during the afternoon, with ample moisture for daytime storms and modest instability. Shear will remain quite weak, with primarily non-severe storms expected. To the west, an upper high will be centered over the central Rockies, with a ridge building northward across MT. This will occur ahead of an upper low, which will near the OR/northern CA coast late in the period. Forecast soundings indicate minimal SBCAPE during the day over OR, but moistening around 700 mb and steepening lapse rates aloft will support areas of rain and thunderstorms into the night as cooling aloft spreads east. ..Jewell.. 08/07/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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)