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| Mesoscale Discussion 726 |
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Mesoscale Discussion 0726
NWS Storm Prediction Center Norman OK
0309 PM CDT Mon May 25 2020
Areas affected...Western Louisiana
Concerning...Severe potential...Watch unlikely
Valid 252009Z - 252145Z
Probability of Watch Issuance...20 percent
SUMMARY...An isolated damaging wind threat will exist this afternoon
and evening across western Louisiana.
DISCUSSION...Scattered storms have developed along a confluence axis
extending into western Louisiana. Storm coverage is expected to
increase along this zone in the next 1 to 2 hours as the airmass is
uncapped and MLCAPE is around 2000 J/kg. Effective shear around 20
to 25 knots will lead to multicell clusters as the primary storm
mode. Relatively weak flow below 3km per KPOE VWP will limit the
overall severe weather threat, but the strong instability and moist
column will support a threat for wet microbursts. Some evidence of
this is present at 20Z from KPOE where several areas of 35 to 40
knot velocities have been sampled below 2000 feet. The marginal
nature of the threat will likely preclude the need for a watch
across this region.
..Bentley/Hart.. 05/25/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...JAN...LCH...SHV...
LAT...LON 31049200 30329255 30259293 30509326 31109353 32369405
32959390 32869353 32569253 31489199 31049200
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