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Mesoscale Discussion 1266
NWS Storm Prediction Center Norman OK
0518 PM CDT Sat Jul 18 2020
Areas affected...Western Kansas...Eastern Colorado...and Southwest
Nebraska
Concerning...Severe potential...Watch unlikely
Valid 182218Z - 190015Z
Probability of Watch Issuance...5 percent
SUMMARY...Isolated to scattered thunderstorms are likely, posing a
threat for a few damaging wind gusts. Watch issuance unlikely.
DISCUSSION...Regional mesoanalysis depicts a stalled cold front
extending from east-central Colorado into northwest Kansas and
south-central Nebraska. South of this boundary, intense surface
heating has led to temperatures in the mid 90s to near 100 F. This
process has resulted in the exceedance of convective temperatures
across much of western Kansas, as evidenced by scattered development
of cumulus and associated weak echoes on regional radar indicative
of convective initiation. Meanwhile, surface dew point temperatures
remain in the upper 50s and lower to mid 60s across the region,
yielding large boundary layer dew point depressions and inverted-V
soundings (MLCAPE of 1500-2500 J/kg) amid a weakly sheared
environment.
Isolated to scattered thunderstorm development is expected to
continue into the early evening. A few of the strongest cells may
produce damaging wind gusts. However, given the isolated nature of
this threat, watch issuance is not anticipated.
..Karstens/Bunting.. 07/18/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ICT...GID...DDC...GLD...PUB...
LAT...LON 37030034 37040191 37820274 39040282 39780207 40310038
40419948 40319876 39799836 38449842 37429919 37030034
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