SPC MD 774

By Newsroom America Feeds at 19 May 03:18

MD 0774 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR SOUTHWEST TEXAS
Mesoscale Discussion 0774 NWS Storm Prediction Center Norman OK 0217 AM CDT Fri May 19 2017 Areas affected...Southwest Texas Concerning...Severe potential...Watch likely Valid 190717Z - 190915Z Probability of Watch Issuance...80 percent SUMMARY...Severe thunderstorms capable of large hail and perhaps wind damage are expected to form by 8-9Z across southwest Texas. DISCUSSION...Southeasterly surface to 850 mb flow is helping a dryline to retreat northwestward to near the Big Spring to Midland/Odessa area. Storms are now beginning to form, and this trend should persist, with an eventual storm complex oriented southwest-northeast but with embedded supercells. Ample instability with increasing moisture and favorable lapse rates aloft and long hodographs should favor some long lived storms capable of mainly large damaging hail. With time, storms may evolve into an MCS driven by outflow and continuing into northwest TX this morning. ..Jewell/Guyer.. 05/19/2017 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD...SJT...LUB...MAF... LAT...LON 31470367 32040231 32910042 33019983 32929946 32639915 32389901 31830023 31540173 31330264 31220329 31220358 31280369 31470367 Read more

http://www.spc.noaa.gov/products/md/md0774.html

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