Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 281702
SWOMCD
SPC MCD 281701
LAZ000-TXZ000-281830-
Mesoscale Discussion 1040
NWS Storm Prediction Center Norman OK
1201 PM CDT Tue May 28 2024
Areas affected...southwest to south-central Louisiana
Concerning...Severe potential...Watch likely
Valid 281701Z - 281830Z
Probability of Watch Issuance...80 percent
SUMMARY...Strong to severe thunderstorms may persist southeast
across southwest and south-central Louisiana this afternoon.
Damaging gusts will be the main hazard with this activity. A severe
thunderstorm watch may be needed soon.
DISCUSSION...A cluster of strong to severe thunderstorms ongoing
near the TX/LA border at midday may persist southeast through the
afternoon along a surface boundary. A very moist (mid 70s to near 80
F dewpoints) boundary-layer exists across the area beneath very
steep midlevel lapse rates (8 C/km) and strong vertical shear (40+
kt effective shear). While this cluster of storms is less intense
compared to early in the morning, the downstream environment remains
favorable for organized severe. A severe thunderstorm watch may be
needed soon if current trends persist/intensify.
..Leitman/Hart.. 05/28/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LIX...LCH...SHV...
LAT...LON 31489379 31379292 30769175 30309103 29909068 29389075
29159135 29369264 29629367 29879397 30889413 31489379