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| Mesoscale Discussion 542 | |
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Mesoscale Discussion 0542 NWS Storm Prediction Center Norman OK 1142 PM CDT Sat Apr 25 2026 Areas affected...northeastern Texas...southwestern Arkansas...northwestern Louisiana Concerning...Severe Thunderstorm Watch 147... Valid 260442Z - 260645Z The severe weather threat for Severe Thunderstorm Watch 147 continues. SUMMARY...Severe threat continues within WW147. DISCUSSION...A pair of supercells continue to track south and east southeastern Arkansas. These cells have a history of producing hail up to 2.75 inches in diameter and continue to have high MESH cores. In the short term, these will pose the greatest severe risk with the primary threat being large to very large hail. While these storms are likely elevated, should they be able to continue southward into the warmer air and vicinity of more backed surface flow, a tornado could be possible. CAM guidance seems to suggest that eventually, storms will cluster and move across northern Louisiana through the morning. This may lead to a shift in potential for strong to severe wind. Given the diurnal stabilizing of the boundary layer, winds may not make it to the surface keeping this threat isolated. ..Thornton.. 04/26/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LZK...SHV... LAT...LON 33689513 34069364 33999312 33439229 33049221 32699221 32309231 32189308 32439390 32749474 32879501 33689513 MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN | |
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