LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0738 AM CDT Mon Sep 02 2024
Valid 021300Z - 031200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE INTERIOR PACIFIC NORTHWEST INTO THE NORTHERN GREAT
BASIN/ROCKIES...
...SUMMARY...
Isolated to scattered thunderstorms across the northern Great Basin
and parts of the interior Pacific Northwest may be capable of
occasional strong to severe wind gusts this afternoon and evening.
...Interior Pacific Northwest into the Northern Great
Basin/Rockies...
A closed upper low approaching the northern CA and OR Coast will
continue eastward today across the Pacific Northwest and northern
Great Basin. Associated 35-50 kt mid-level south-southwesterlies
will overspread these regions through the afternoon and evening.
Large-scale ascent attendant to the upper low has already encouraged
weak, elevated convection this morning across pats of eastern OR and
vicinity. Current expectations are for additional showers and
thunderstorms to develop later this afternoon as daytime heating
occurs, mainly across parts of central/eastern OR into ID and
northern NV/northwest UT. This convection will likely be rather
high-based (LCLs around 3-4 km AGL), as latest surface observations
and area 12Z soundings show very limited low-level moisture, and
total PWAT values generally 0.5-0.7 inches. Even with rather weak
buoyancy forecast across much of this area, a deeply mixed boundary
layer should encourage efficient evaporative cooling of convective
downdrafts. An isolated risk for strong/gusty winds approaching and
occasionally exceeding severe levels remains apparent with this
high-based convection as it spreads generally north-northeastward
through the afternoon/evening before eventually weakening.
..Gleason/Leitman.. 09/02/2024
Read more CHECK UPDATE ZOOM GRAPHIC
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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.
CONVECTIVE | TORNADO | WIND | HAIL
Monday, September 2, 2024
SPC Sep 2, 2024 1300 UTC Day 1 Convective Outlook
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)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)