ACUS11 KWNS 280047
SWOMCD
SPC MCD 280047
NEZ000-KSZ000-280145-

Mesoscale Discussion 2159
NWS Storm Prediction Center Norman OK
0747 PM CDT Thu Aug 27 2026

Areas affected...portions of central Nebraska

Concerning...Severe Thunderstorm Watch 633...

Valid 280047Z - 280145Z

The severe weather threat for Severe Thunderstorm Watch 633
continues.

SUMMARY...An organizing bowing cluster may produce significant
severe gusts (75-90 mph) as it moves toward the I-80 corridor over
the next 1-2 hours.

DISCUSSION...A cluster of formerly HP supercells over central NE has
merged and started to organize into a linear complex over the last
30 min. Recent KLNX radar data shows a developing weak reflectively
notch concurrent with increasing outbound velocities of 70+ kt at
1-2 kft AGL. This is suggestive of a rapidly organizing cold pool
and rear inflow jet. Given the favorable environment with MLCAPE in
excess of 3000 J/kg and T/TD spreads of 20+ degrees F, significant
damaging wind potential is likely increasing. Severe gusts of 75-90+
mph will be possible near the apex of the bowing cluster as it moves
toward the I-80 corridor over the next hour. If the cluster is able
to persist, a small downstream watch could be needed south of WW633

..Lyons.. 08/28/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!-I3XZHMbh6sJesFdS6uFQGeDf8NJC2bwSEFLjXrHjSsqz_DQzltT1fA_XOHUyjKMXoUE8KUuDGW6i8pjSg3TsZ-BdC4$ for graphic product...

ATTN...WFO...GID...LBF...GLD...

LAT...LON 41770147 42080082 41980032 41750020 41200001 40379981
40049983 39900043 39910084 40030107 40920145 41150142
41770147

MOST PROBABLE PEAK WIND GUST...75-90 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


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--- scorpsmtpd
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