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Mesoscale Discussion 1334 |
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MESOSCALE DISCUSSION 1334
NWS STORM PREDICTION CENTER NORMAN OK
1107 PM CDT WED JUL 08 2015
AREAS AFFECTED...SRN TX PANHANDLE
CONCERNING...SEVERE THUNDERSTORM WATCH 395...
VALID 090407Z - 090500Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 395
CONTINUES.
SUMMARY...WW 395 IS SCHEDULED TO EXPIRE AT 05Z. BASED ON RECENT
OBSERVATIONAL TRENDS...AN ADDITIONAL WW OR LOCAL TEMPORAL EXTENSION
APPEARS UNLIKELY.
DISCUSSION...EARLIER SUPERCELLS HAVE WEAKENED SUBSTANTIALLY DURING
THE PAST HOUR WITHIN A GENERAL CLUSTER MODE AND INCREASINGLY ELY
COMPONENT TO OVERALL MOVEMENT. PER ENLARGED GROUND CLUTTER PATTERNS
IN LBB/FDR RADARS...IT APPEARS THAT INCREASING MLCIN HAS
SUFFICIENTLY DISRUPTED SUSTENANCE OF LOW-LEVEL MESOCYCLONES AMID
BOUNDARY-LAYER DECOUPLING. ELEVATED CONVECTION MAY PERSIST FOR THE
NEXT SEVERAL HOURS WITH LOW-LEVEL WAA ATOP REMNANT CONVECTIVE
OUTFLOW. ISOLATED SEVERE HAIL MIGHT ACCOMPANY THE WRN FRINGE OF THIS
DEVELOPMENT OWING TO CLOSER PROXIMITY TO STEEPER MID-LEVEL LAPSE
RATES. BUT THE OVERALL SEVERE RISK APPEARS UNLIKELY TO GREATLY
INTENSIFY BEYOND MIDNIGHT.
..GRAMS.. 07/09/2015
ATTN...WFO...LUB...AMA...
LAT...LON 35300230 35270183 35300137 35470104 35380068 35240058
34980056 34660064 34450092 34370129 34400175 34510220
34810261 35110262 35300230
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