Mesoscale Discussion 0419
NWS Storm Prediction Center Norman OK
0815 PM CDT Sat Apr 05 2025
Areas affected...Northeast MS...northern AL...southern middle TN
Concerning...Tornado Watch 124...125...
Valid 060115Z - 060245Z
The severe weather threat for Tornado Watch 124, 125 continues.
SUMMARY...A threat for all severe hazards will continue into late
evening. New watch issuance is likely by 9 PM CDT.
DISCUSSION...A cluster of intense supercells is ongoing across
extreme northeast MS this evening, with multiple spotter and
radar-confirmed tornadoes over the last 60-90 minutes. A trailing
storm cluster into north-central MS has also shown signs of
increasing organizations. The environment from
north-central/northeast MS into extreme northwest AL and extreme
southwest/southern middle TN remains favorable for tornadic
supercells, with favorably backed surface winds, rich boundary-layer
moisture, moderate to strong buoyancy, and increasing low-level
flow/shear (as noted on the KGWX VWP). This environment continues to
support a threat of strong tornadoes, as well as localized large to
very large hail and damaging winds. Any further upscale growth could
result in potential for larger-scale swaths of damaging winds as
storms move east-northeastward with time.
Downstream into a larger portion of northern AL and southern middle
TN, lower dewpoints (dropping to the lower 60s F) and weaker
buoyancy are noted in current observations and analyses. However,
the low-level jet will remain strong through the evening/night, and
some moisture recovery will be possible in advance of the ongoing
convection. This will support a continued threat of all severe
hazards well past the scheduled 9 PM CDT expiration time of WW 124.
As a result, new watch issuance is expected soon, which may extend
into downstream areas of north-central/northeast AL and
southern/eastern TN.
..Dean/Hart.. 04/06/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MRX...OHX...BMX...HUN...MEG...JAN...
LAT...LON 33868898 33858951 34078963 34358931 35278791 35468737
35488609 35408541 35108544 34628619 34208760 33938872
33868898
MOST PROBABLE PEAK TORNADO INTENSITY...120-150 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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