Windy.com Temps | Gusts | WU KORD KPWK

CLICK for this month's BIG night sky ...

RADAR FULL MAP SCREEN

NEXRAD

STORMTRACK

Cardinal SAT

CHGOWX.COM



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.

ARLINGTON HEIGHTS WEATHER

Saturday, September 18, 2021

SPC Sep 18, 2021 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1114 AM CDT Sat Sep 18 2021 Valid 181630Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER PARTS OF THE GREAT BASIN... ...SUMMARY... A few storms may produce severe wind and/or hail this afternoon and evening across parts of the Great Basin region. ...Great Basin... Water vapor loop shows a strong upper trough digging onto the coast of OR, with a lead shortwave trough lifting northeastward across CA/NV toward UT. Large scale forcing is overspreading parts of NV/AZ/UT, resulting in increasing coverage of thunderstorms. This activity will spread northeastward across much of UT this afternoon, and eventually into southern ID/WY. Instability will be limited due to marginal moisture values and pockets of cloudiness. However, rather strong southwesterly flow will result in fast-moving showers and thunderstorms capable of gusty and locally damaging winds. Hail will also be possible in the higher terrain of northwest AZ into central UT. ..Hart/Squitieri.. 09/18/2021 Read more LIVE: spc.noaa.gov
http://dlvr.it/S7qVBL
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)