SPC MD 1478

By Newsroom America Feeds at 12 Aug 14:12

MD 1478 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR TX BIG COUNTRY
Mesoscale Discussion 1478 NWS Storm Prediction Center Norman OK 0111 PM CDT Sat Aug 12 2017 Areas affected...TX Big Country Concerning...Severe potential...Watch unlikely Valid 121811Z - 121945Z Probability of Watch Issuance...20 percent SUMMARY...Isolated damaging wind gusts are possible for the next few hours across the TX Big Country. DISCUSSION...Recent surface analysis reveals an outflow boundary extending from 0F2 (in Montague county) southwestward to DYS (in Taylor county) and then back westward to the line of storms moving through Nolan and Fisher counties. The line of storms showed some brief intensification as it interacted with outflow boundary and SWW reported a gust of 48 kt. ZDR trends in the radar data suggest the strongest updraft in the line is moving into Jones county and continued propagation northeastward away from the outflow boundary anticipated. However, southern portion of the line is expected to continue more eastward and with the trend of occasional updraft intensification likely persisting as the line of storms interacts with the cells developing along the outflow boundary. Generally warm and moist airmass across the region suggests the primary severe threat will be isolated strong wind gusts. Isolated nature of the severe threat is expected to preclude watch issuance but trends will be monitored closely. ..Mosier/Guyer.. 08/12/2017 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD...SJT... LAT...LON 32050049 32600037 33129960 33199850 32419840 31969918 31869983 32050049 Read more

http://www.spc.noaa.gov/products/md/md1478.html

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