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ACUS11 KWNS 271753
SWOMCD
SPC MCD 271752=20
LAZ000-ARZ000-TXZ000-271915-
Mesoscale Discussion 1916
NWS Storm Prediction Center Norman OK
1252 PM CDT Wed Oct 27 2021
Areas affected...portions of northern LA
Concerning...Tornado Watch 541...
Valid 271752Z - 271915Z
The severe weather threat for Tornado Watch 541 continues.
SUMMARY...A couple of locally strong wind gusts are possible the
next hour or two across Tornado Watch 541, but the overall severe
threat will diminish with eastward extent across northeast
Louisiana.
DISCUSSION...Instability continues to wane downstream from Tornado
Watch 541 as the warm sector becomes increasingly narrow. A warm
front draped across south/southeastern LA will slowly lift northward
during the afternoon, but not quickly enough as the ongoing line of
convection advances eastward faster than the front advances
northward. As a result, the boundary layer is expected to remain
rather cool and only weakly unstable. Weak to moderate vertical
shear will remain over the region and a couple of strong storms may
persist within the line in the short-term, possibly producing
locally gusty winds. However, the overall severe threat is expected
to be limited across northeast LA and a downstream watch is not
expected.
..Leitman.. 10/27/2021
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!tAXukqx7T_FJ7gD5BIoi3eyKs9TC8uMNhu3H-buHpttXPxyM4id8Q0iRpwqbT55UGERWQJ8a$=
for graphic product...
ATTN...WFO...JAN...LZK...SHV...
LAT...LON 32799476 33219471 33439461 33619417 33709348 33559275
33309230 33069210 32699193 32369191 32129198 31919222
31859252 31859299 31719393 31749438 32019455 32489472
32799476=20
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