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Mesoscale Discussion 443 |
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Mesoscale Discussion 0443
NWS Storm Prediction Center Norman OK
0508 PM CDT Thu Apr 10 2025
Areas affected...Western Tennessee...northern Mississippi...northern
Alabama
Concerning...Severe Thunderstorm Watch 135...136...
Valid 102208Z - 110015Z
The severe weather threat for Severe Thunderstorm Watch 135, 136
continues.
SUMMARY...Severe wind gusts and large hail are expected with
convection as it spreads southeast this evening.
DISCUSSION...Mid-level heights are falling across the Mid South this
evening as a 500mb speed max digs across eastern KS toward northern
MS. Left-exit region of this jet appears partly responsible for an
expanding cluster of thunderstorms along the cold front over western
TN. Additionally, while the boundary-layer lapse rates are quite
steep across much of this region, surface temperatures are
considerably warmer across northern MS into central AL where
readings are in the lower 80s. As profiles cool aloft, the greatest
buoyancy should focus across northern MS into northern AL. Frontal
convection may continue to grow upscale due to the aforementioned
exit region and thermodynamic profiles favor strong downdrafts, in
addition to large hail. Severe storms should spread across northern
MS and northern AL through mid evening.
..Darrow.. 04/10/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OHX...BMX...HUN...MEG...
LAT...LON 35568848 34408557 33368609 34488907 35348937 35568848
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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