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 31149378Read more
SPC MD 196
MD 0196 CONCERNING HEAVY SNOW FOR PORTIONS OF WESTERN MINNESOTAMesoscale 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 43689599Read more
SPC Center Public Severe Weather Outlook (PWO)
Public Severe Weather OutlookPUBLIC 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 forRead more