Storm Prediction Center Mesoscale Discussion 911
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Mesoscale Discussion 911 | |
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Mesoscale Discussion 0911 NWS Storm Prediction Center Norman OK 0538 PM CDT Tue May 20 2025 Areas affected...Parts of northern Mississippi Concerning...Tornado Watch 303... Valid 202238Z - 210015Z The severe weather threat for Tornado Watch 303 continues. SUMMARY...Several ongoing severe storms are moving into an increasingly favorable environment for tornadoes across northern Mississippi. DISCUSSION...A couple semi-discrete supercells are tracking eastward across parts of northwest/west-central MS. Ahead of these storms, a 35-kt low-level jet (sampled by area VWPs) is contributing to ample low-level clockwise hodograph curvature with around 200 m2/s2 effective SRH. Given warm/moist surface-based inflow and this enhanced streamwise vorticity, the ongoing storms may intensify as they continue eastward -- with an increasing tornado risk. Large hail and locally damaging winds will also be a concern. ..Weinman.. 05/20/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MEG...JAN... LAT...LON 33249113 34288996 34538945 34538915 34428884 34208873 33278969 33019032 33029069 33099102 33249113 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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2025-05-20 22:58:03