ACUS11 KWNS 261937
SWOMCD
SPC MCD 261937=20
SDZ000-NEZ000-MTZ000-WYZ000-262100-
Mesoscale Discussion 1999
NWS Storm Prediction Center Norman OK
0237 PM CDT Mon Aug 26 2024
Areas affected...northeast WY into western/southern SD and northern
NE
Concerning...Severe potential...Watch likely=20
Valid 261937Z - 262100Z
Probability of Watch Issuance...80 percent
SUMMARY...Thunderstorms are expected to increase in coverage and
intensity through the afternoon. Damaging wind gusts and large to
very large hail remain possible. A watch will likely be needed soon.
DISCUSSION...Thunderstorms over eastern WY have slowly increased in
intensity the past hour or so as this activity shifts east into
somewhat better instability. Additional deepening of cumulus has
been noted in visible satellite imagery along the outflow reinforced
frontal draped near the SD/NE border. Pockets of stronger heating
and cooling aloft has allowed MLCAPE to increase to around 1000
J/kg. Somewhat stronger instability is noted with eastward extent
along the surface boundary across north-central NE, and towering
cumulus have recently developed in this area. While convective
evolution remains a bit uncertain, modified 18z RAOB from UNR, along
with forecast soundings across the region, continue to indicate a
risk for large to very large hail and severe gusts. A watch will
likely be needed for portions of the MCD area soon.
..Leitman/Guyer.. 08/26/2024
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8YiOOY2ef5pHQG4jfusn0qTtGfI7k6PUKkMo9tkG8YUdzfFKpkdYIoKHLxVwFxFOWxSEN0KyI= K7qM1BmIEJO5uAirk8$ for graphic product...
ATTN...WFO...FSD...OAX...ABR...LBF...UNR...CYS...BYZ...
LAT...LON 42800541 43550556 44640559 45210517 45350360 44380184
43569915 43279800 42769795 42319845 42089931 41910121
41930313 42520481 42800541=20
=3D =3D =3D
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