Mesoscale Discussion
SPC MD 198
MD 0198 CONCERNING TORNADO WATCH 44... FOR NORTHERN LOUISIANA...SOUTHEAST ARKANSAS...NORTHERN/WESTERN MISSISSIPPI...SOUTHWEST TENNESSEE
Mesoscale Discussion 0198
NWS Storm Prediction Center Norman OK
0925 AM CDT Sat Mar 15 2025
Areas affected...northern Louisiana...southeast
Arkansas...northern/western Mississippi...southwest Tennessee
Concerning...Tornado Watch 44...
Valid 151425Z - 151600Z
The severe weather threat for Tornado Watch 44 continues.
SUMMARY...The severe weather threat will increase through the
morning across tornado watch 44.
DISCUSSION...Widespread thunderstorm activity has formed along the
cold front from northern Louisiana to western Tennessee. The
widespread nature of this convection has resulted in a messy storm
mode. However, any additional storms which develop on the warm side
of the boundary will pose a threat for all severe hazards including
large hail, severe wind gusts, and tornadoes. This baroclinic zone
will likely persist for much of the day with the greatest tornado
threat persisting slightly southeast of this zone. More organized
supercells are present across northern Louisiana where storm mode
has remained more discrete. These supercells, and additional
development south and east of these storms may be the beginnings of
long-track supercells which will persist for much of the daytime
period with a threat for large hail (some 2+ inches), severe wind
gusts, and strong to intense tornadoes.
..Bentley/Gleason.. 03/15/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MEG...JAN...LZK...LCH...SHV...
LAT...LON 31149378 32549294 33939160 34599080 35308986 35508951
35588869 35418815 34608826 33648908 32648999 31399153
30879207 30859307 31149378
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SPC MD 196
MD 0196 CONCERNING HEAVY SNOW FOR PORTIONS OF WESTERN MINNESOTA
Mesoscale Discussion 0196
NWS Storm Prediction Center Norman OK
0747 AM CDT Sat Mar 15 2025
Areas affected...portions of western Minnesota
Concerning...Heavy snow
Valid 151247Z - 151645Z
SUMMARY...Periods of heavy snow (perhaps exceeding 1 inch/hr at
times), along with blizzard conditions are possible this morning.
Winds may sustain over 35 mph (with higher gusts), with reduced
visibility possible in spots.
DISCUSSION...A stacked cyclone continues to occlude while drifting
toward Ontario. As this cyclone continues to track northward,
continued CAA will keep the column below freezing while 850-700 mb
frontogenesis will continue to support adequate convergence/lift for
efficient dendrite production over central MN, which will pivot
around the northwestern quadrant of the cyclone and support moderate
to heavy snowfall over western MN this morning. Strong surface
isallobaric flow across the northwestern cyclone quadrant may
coincide with heavier snowfall rates (perhaps exceeding 1 inch/hr at
times), resulting in periodic blizzard conditions. Visibility may
reduce to or less than a quarter mile in the heavier snow bands.
..Squitieri.. 03/15/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DLH...MPX...FGF...FSD...ABR...
LAT...LON 43689599 44359634 46259622 47759612 48179522 48209447
47989429 47379411 46659425 45709440 44679466 43889488
43689509 43689599
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SPC Center Public Severe Weather Outlook (PWO)
Public Severe Weather Outlook
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0840 AM CDT SAT MAR 15 2025
...Outbreak of tornadoes and severe thunderstorms expected over
parts of the Deep South and Tennessee Valley today and tonight...
* LOCATIONS...
Alabama
Mississippi
Louisiana
Western Georgia
Tennessee
The Florida Panhandle
* HAZARDS...
Numerous tornadoes, several intense and long track
Widespread damaging winds, some hurricane force
Scattered large hail, some baseball size
* SUMMARY...
A tornado outbreak is expected across the central Gulf Coast
States and Deep South into the Tennessee Valley. Numerous
significant tornadoes, some of which should be long-track and
potentially violent, are expected this afternoon and evening.
The most dangerous tornado threat should begin across eastern
Louisiana and Mississippi during the late morning to afternoon,
spread across Alabama late today into the evening, and reach
western parts of the Florida Panhandle and Georgia tonight.
Preparedness actions...
Review your severe weather safety procedures for the possibility
of dangerous weather today. Stay tuned to NOAA Weather Radio,
weather.gov, or other media for watches and warnings. A tornado
watch means that conditions are favorable for tornadoes to form
during the next several hours. If a tornado warning is issued for
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