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ACUS11 KWNS 302320
SWOMCD
SPC MCD 302319=20
ALZ000-MSZ000-310045-

Mesoscale Discussion 0362
NWS Storm Prediction Center Norman OK
0619 PM CDT Wed Mar 30 2022

Areas affected...portions of the middle Gulf Coast

Concerning...Tornado Watch 80...

Valid 302319Z - 310045Z

The severe weather threat for Tornado Watch 80 continues.

SUMMARY...A mature QLCS with a history of damaging winds and
tornadoes will continue east this evening. Very strong shear and
sufficient buoyancy will continue to support the risk for severe
wind gusts (some 70+ mph) and tornadoes.

DISCUSSION...As of 2315 UTC, regional radar imagery showed an
expansive QLCS moving quickly eastward across the middle Gulf Coast
and MS River Valley. To the east of the squall line, regional VWPS
were sampling an increasingly strong southerly low-level jet with
1km flow near 60 kts. Expansive cloud cover and meager surface
moisture have so far limited buoyancy across much of southeastern
MS, southwestern AL. However, as the low-level jet strengthens
across this area ahead of approaching upper level ascent, rapid
airmass modification is expected to result in sufficient
destabilization for a continued severe risk. Middle and upper 60s F
surface dewpoints just offshore should be quickly advected inland
supporting approx 1000 J/kg of MLCAPE ahead of the squall line. The
strong low-level jet will also continue enlarge hodographs with
400-500 m2/s2 of ESRH expected. The potent low-level shear and
sufficient buoyancy will support a risk for line-embedded supercells
capable of damaging wind gusts and a few tornadoes this evening.

..Lyons.. 03/30/2022

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qwGZb2ZQlmlqT7KuN7K5gKFMLwuXSvYPBBOKDCPSMKdJnBnD8PclLFiN25380OGB5Mqu4klW$=
for graphic product...

ATTN...WFO...BMX...MOB...JAN...

LAT...LON 32928806 32948785 32718728 32238683 31858713 31508757
31168832 31128899 31028979 31778998 32378944 32798851
32928806=20



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ACUS11 KWNS 262215
SWOMCD
SPC MCD 262214=20
MSZ000-262315-

Mesoscale Discussion 0362
NWS Storm Prediction Center Norman OK
0514 PM CDT Sun Mar 26 2023

Areas affected...parts of southern and central Mississippi

Concerning...Tornado Watch 88...

Valid 262214Z - 262315Z

The severe weather threat for Tornado Watch 88 continues.

SUMMARY...Clustering storms near the Jackson area may gradually
organize and pose increasing potential for strong wind gusts while
approaching the Meridian vicinity through 6-8 PM CDT.

DISCUSSION...Low-level forcing for convection is unclear and appears
weak, but activity continues to increase and consolidate into an
enlarging cluster, probably associated with ascent accompanying a
subtle mid-level perturbation within strong west-southwesterly
mid/upper flow. This perturbation is crossing east-northeast of the Mississippi River, with storms largely focused along the leading
(northern) edge of higher moisture content air slowly shifting
northward through the Gulf Coast states (ahead of low amplitude
mid-level troughing across the Great Basin into Great Plains).

In the presence of strong deep-layer shear, and aided by inflow of
air characterized by large CAPE, it is possible that stronger
convection may become better organized through 23-01Z, east of
Jackson toward the Meridian vicinity, accompanied by increasing
potential for damaging wind gusts.

..Kerr.. 03/26/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5Nm-moL9jdUgCkwc2iPOU6TGMjsBw5BR5v-i3bqVokGKUr2eStbBbCceTUtJJnzE3ehpASfmn= W7vG90raLsFHpBcSWU$ for graphic product...

ATTN...WFO...MOB...JAN...

LAT...LON 32248982 32608955 32708840 31858866 31568967 31629063
31899065 31999021 32248982=20


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ACUS11 KWNS 030345
SWOMCD
SPC MCD 030345=20
GAZ000-ALZ000-030545-

Mesoscale Discussion 0362
NWS Storm Prediction Center Norman OK
1045 PM CDT Tue Apr 02 2024

Areas affected...East-Central Alabama...West-Central Georgia

Concerning...Tornado Watch 82...

Valid 030345Z - 030545Z

The severe weather threat for Tornado Watch 82 continues.

SUMMARY...A small corridor from central Alabama into west-central
Georgia continues to appear have the relatively greatest risk for a
few tornadoes for the next 2-3 hours.

DISCUSSION...Latest radar loop shows a cluster of thunderstorms
moving across portions of Chilton/Autauga counties of central AL.=20
Surface obs and longer-term radar trends suggest this cluster is
coincident with a mesolow, and recently the circulation tightened up
and produced a tornado. Locally enhanced southerly low-level winds
ahead of the mesolow/supercell may aid in the development of further
rotating storms across Elmore/Coosa/Tallapoosa counties in the next
hour, with activity tracking toward west-central GA after 1am.=20=20
This focused corridor appears to have the greatest shorter-term
threat of a few tornadoes and damaging wind gusts.

..Hart.. 04/03/2024

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4uNLFJPXOLusSjrdNTeSKWykb82-oYCxt-K53wJWVehGkDRpf41cfJT667LqVDvzxVpmqHYLe= lTLYP3P54VgAHYmaM8$ for graphic product...

ATTN...WFO...FFC...BMX...

LAT...LON 33448606 33798480 32808489 32358723 33448606=20


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