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Weather conditions on bar directly above are near Lakefront. Tabs under Moon Phases refer to O'Hare (official).

Archives for SPC Convective outlook are updated daily with a live map a the beginning of the article. Touch or click map to get possible update, and follow link at end of article for referral to NOAA/NWS Storm Prediction Center. Archives for Chicago's hourly weather data were updated 24-48 hours after end of each day prior to Dec. 2020.

Wednesday, April 6, 2022

SPC Apr 6, 2022 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 05 2022 Valid 060100Z - 061200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR COASTAL NORTH CAROLINA... ...SUMMARY... Severe thunderstorms are expected near the Carolina coast this evening and in the Ozarks to lower Ohio Valley through tonight. ...Coastal Carolinas... A mid-level shortwave trough over the southern Appalachians this evening will continue northeastward to the VA/NC coast after midnight as it weakens. A northward-advancing warm sector immediately ahead of a thunderstorm cluster over southern NC will conditionally support a risk for severe thunderstorm activity this evening. Damaging gusts and a tornado are the main threats before the storms move east of the coast into the western Atlantic by late evening. ...Mid MS Valley/Ozarks/lower OH Valley... An amplifying mid-level shortwave trough/closed low will move east from the SD/NE/western IA vicinity to the MS Valley by late tonight. Although low-level moisture is limited (lower 50s dewpoints near the IA/MO/IL border to the lower 60s over northeast OK), strengthening large-scale ascent will likely promote additional storms over the MS Valley and into the Ozarks this evening. The stronger storms will be capable of an isolated risk for hail/wind and perhaps a tornado. Recent model guidance indicates a convective line may evolve overnight from AR/southeast MO east into the lower OH Valley. Have expanded low-severe probabilities farther east to account for this potential scenario. ..Smith.. 04/06/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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