Temps | Gusts | WU KORD KPWK

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




Cardinal SAT


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.


Saturday, September 2, 2023

SPC Sep 2, 2023 1630 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1127 AM CDT Sat Sep 02 2023 Valid 021630Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Organized severe thunderstorms are not expected through tonight. ...Lower Colorado Valley region... A very moist environment will remain in place with PW values of 1.75 to 2 inches. Diurnal heating will contribute to moderate/locally strong MLCAPE (1500-2500 J/kg) this afternoon with negligible CINH. Thunderstorms are expected to develop or increase in coverage, aided by diffluent upper-level flow downstream of an upper low over the northwest CA coast, and ascent with a weak mid-level impulse lifting northeast from northern Baja Peninsula. Despite overall weak shear through the cloud-bearing layer, an isolated stronger storm will be capable of strong gusts. ...Central/northern Nevada... Morning cloud cover/precipitation persists across the area, however some heating/destabilization is expected this afternoon in the vicinity of a stationary front where MLCAPE of 400-800 J/kg should develop. Scattered thunderstorms are expected to redevelop in the vicinity of the front, where mid-level flow of 35-45 kts east of the upper low will contribute to a couple more organized cells. Localized strong wind gusts will be possible, but the lack of greater buoyancy casts doubt on the overall magnitude of the severe risk. ..Bunting/Weinman.. 09/02/2023 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)