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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 9, 2021

SPC Nov 9, 2021 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1024 AM CST Tue Nov 09 2021 Valid 091630Z - 101200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS WESTERN WASHINGTON/FAR NORTHWEST OREGON... ...SUMMARY... A brief tornado or locally damaging wind gust is possible this afternoon, mainly across a portion of western Washington. ...Western Washington/northwest Oregon... A shortwave trough and related cold front will continue to move eastward/inland through the afternoon. Via cloud breaks and a trough-associated pocket of -30C 500 mb temperatures, low/mid-level lapse rates will steadily steepen this afternoon, with a few hundred J/kg SBCAPE expected to be maximized along the Washington Coast. This may be sufficient for some semi-stout/sustained low-topped thunderstorms, with strong deep-layer southwesterly winds potentially supportive of organized clusters and possibly a weak/transient supercell or two. A brief tornado and/or convectively enhanced damaging wind gust will be possible, particularly in near-coastal Washington areas this afternoon. ..Guyer.. 11/09/2021 Read more LIVE: spc.noaa.gov
http://dlvr.it/SCBkW0