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Topic: SPC Sep 4, 2022 1630 UTC Day 1 Convective Outlook (Read 24 times) previous topic - next topic

SPC Sep 4, 2022 1630 UTC Day 1 Convective Outlook

SPC Sep 4, 2022 1630 UTC Day 1 Convective Outlook

[html]SPC 1630Z Day 1 Outlook
     
Day 1 Outlook Image

Day 1 Convective Outlook 
NWS Storm Prediction Center Norman OK
1130 AM CDT Sun Sep 04 2022

Valid 041630Z - 051200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE DESERT SOUTHWEST AND THE SOUTHERN GREAT PLAINS...

...SUMMARY...
Isolated severe wind gusts are possible during the late afternoon to
early evening over parts of the Desert Southwest along with
southeast Oklahoma and North Texas.

...Desert Southwest...
With a moist air mass remaining across the region, strong boundary
layer heating and orographic influences will again yield isolated
thunderstorm development late this afternoon into evening. This will
include a corridor from northwest Arizona, far southern Nevada into
interior southern California. A belt of moderately strong easterly
winds will persist on the southern periphery of the Great
Basin-centered upper ridge, which will support a west-southwestward
movement of some potentially semi-organized storms. A well-mixed
boundary layer will support a threat for isolated severe wind gusts
from the late afternoon into early/mid-evening.

...Southeast Oklahoma and North Texas...
A southward-sagging front along with different heating/outflow will
focus renewed thunderstorm development this afternoon. With 15-25 kt
mid-level north/northwesterly winds, weakly organized clusters may
congeal and spread south in north Texas with a threat for locally
strong to severe wind gusts given surface temperatures in the 90s F.
Storms will weaken towards/after sunset as the boundary layer cools
and MLCIN increases.

..Guyer/Bentley.. 09/04/2022


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Source: SPC Sep 4, 2022 1630 UTC Day 1 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day1otlk_1630.html)