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Archives for Chicago's hourly weather data updated 24-48 hours after end of each day. MOBILE CHGOWX.COM ...
Weather conditions on bar directly above are near Lakefront. Weather conditions with Moon are O'Hare (official).

Tuesday, November 23, 2021

SPC Nov 23, 2021 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Tue Nov 23 2021 Valid 232000Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today or tonight. ...20z Update... No changes are necessary with the 20z update, as thunderstorms are not expected through the end of the period. ..Leitman.. 11/23/2021 .PREV DISCUSSION... /ISSUED 1030 AM CST Tue Nov 23 2021/ ...Synopsis/Discussion... A progressive but amplified large-scale pattern will continue, highlighted by an amplifying upper trough over the Great Basin/Rockies and an eastward-building upper ridge over the Midwest and Great Lakes. The general prevalence of dry/stable conditions will likely preclude thunderstorms across the CONUS. One potential exception for a couple of lightning flashes might be tonight across southern/eastern Arizona and the Four Corners area, although thermodynamic profiles will be quite marginal and thunderstorm probabilities are expected to remain very low (below 10 percent). Read more LIVE: spc.noaa.gov