ACUS11 KWNS 040144
SWOMCD
SPC MCD 040143=20
SDZ000-NEZ000-MTZ000-WYZ000-040315-

Mesoscale Discussion 1415
NWS Storm Prediction Center Norman OK
0843 PM CDT Mon Jul 03 2023

Areas affected...Parts of eastern WY...far northwestern NE...far
western SD...and far southeastern MT

Concerning...Severe Thunderstorm Watch 441...442...

Valid 040143Z - 040315Z

The severe weather threat for Severe Thunderstorm Watch 441, 442
continues.

SUMMARY...The severe-wind risk should become more widespread across
parts of Severe Thunderstorm Watches 441 and 442 during the next
couple hours. Significant gusts upwards of 80-90 mph are possible.

DISCUSSION...Latest regional radar data shows an uptick in
convective intensity along a large outflow boundary tracking
eastward across parts of eastern Wyoming this evening. Recently, an
embedded bowing segment moving east-northeast at around 30-35 kt
produced a significant gust of 82 mph near Glenrock, WY.=20

During the next couple hours, this activity will continue to
intercept increasingly rich boundary-layer moisture and associated moderate/strong surface-based instability along/east of a remnant
dryline over eastern WY. As a result, updrafts should continue to
deepen along the eastward-advancing outflow boundary. Around 60 kt
of westerly deep-layer shear (per regional VWP) oriented
perpendicular to the outflow boundary should favor embedded bowing
segments and perhaps supercell structures capable of significant=20
gusts upwards of 80-90 mph along with large hail.

..Weinman.. 07/04/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6IzmedqVVgq2m2zU8wa9kg5VYP9ZxnBLZBGGH3bU7TKsICtKbRNlOpsECFRxMnyFbLidlueVT= aZ7tu3JUQUdls8c1N4$ for graphic product...

ATTN...WFO...UNR...CYS...BYZ...

LAT...LON 43020549 43160578 43390585 43700564 44130550 44660537
44960524 45110504 45160464 45110429 44940402 44520386
43650357 42960337 42410337 42130348 41980381 42000408
42200428 42430447 42660477 42850509 43020549=20


=3D =3D =3D
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