MD 1642 CONCERNING SEVERE THUNDERSTORM WATCH 472… FOR SOUTHEAST OKLAHOMA…SOUTHWEST ARKANSAS…NORTHEAST TEXAS…NORTHERN LOUISIANA
Mesoscale Discussion 1642 NWS Storm Prediction Center Norman OK 1133 PM CDT Sat Aug 29 2020 Areas affected...southeast Oklahoma...southwest Arkansas...northeast Texas...northern Louisiana Concerning...Severe Thunderstorm Watch 472... Valid 300433Z - 300600Z The severe weather threat for Severe Thunderstorm Watch 472 continues. SUMMARY...An MCS will gradually shift south across the Arklatex area, with a continued threat of gusty winds and heavy rain. DISCUSSION...An MCS with impressive IR presentation (cloud top temperatures to -80 C) is approaching the Red River, overturning a very moist and unstable air mass. Southwest winds at 850 mb will favor continued inflow into this system as it propagates slowly southward. Periodic strong to severe downdrafts remain possible. A slight westward growth/expansion cannot be ruled out as pockets of warmer air remain surrounding the Metroplex. However, additional watches may not be necessary. ..Jewell.. 08/30/2020 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LZK...SHV...TSA...FWD...OUN... LAT...LON 34069636 34269575 34539460 34409281 33729230 33469235 32829329 32909462 33109602 33369625 33729644 34069636
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