Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Sep 02 2023 00:32:32

ACUS01 KWNS 020032
SWODY1
SPC AC 020030

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0730 PM CDT Fri Sep 01 2023

Valid 020100Z - 021200Z

....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE LOWER
COLORADO RIVER VALLEY TO SOUTHERN IDAHO...

....SUMMARY...
Gusty winds remain possible this evening with convection from
southeastern California to southern Idaho.

....01z Update...

Early-evening water-vapor imagery depicts a weak short-wave trough
over AZ lifting north toward the eastern Great Basin. A considerable
amount of convection has been observed across portions of the
southwestern US into the Great Basin today which has stabilized much
of the region. However, a narrow corridor of modest instability
continues this evening from southwestern AZ, across the lower CO
River Valley into eastern NV. This will be the primary focus for
potentially robust thunderstorms this evening, especially ahead of
the aforementioned short wave. Latest radar data supports this with
the greatest concentration of lightning currently observed from
southeast CA into eastern NV. With mid-level flow on the order of
30kt some of this activity could briefly organize, though weakening
lapse rates/buoyancy will limit severe threat to isolated damaging
gusts.

...Darrow.. 09/02/2023

$$

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