ACUS11 KWNS 030317
SWOMCD
SPC MCD 030317 COR
TXZ000-030400-
MESOSCALE DISCUSSION 0377
NWS STORM PREDICTION CENTER NORMAN OK
1017 PM CDT TUE APR 02 2013
AREAS AFFECTED...PORTIONS OF SERN TX
CONCERNING...SEVERE THUNDERSTORM WATCH 80...
VALID 030317Z - 030400Z
CORRECTED FOR WW NUMBER.
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 80
CONTINUES.
SUMMARY...THE SVR THREAT CONTINUES ACROSS PORTIONS OF WW 80...AND
MAY CONTINUE PAST THE SCHEDULED 04Z EXPIRATION TIME.
DISCUSSION...ONGOING CONVECTIVE CLUSTERS ELONGATED N/S FROM WRN
HARRIS COUNTY TO NRN BRAZORIA COUNTY WILL CONTINUE TO ADVANCE EWD
OVER PARTS OF THE MIDDLE/UPPER TX COASTAL PLAIN...IMPACTING AREAS
AROUND THE HOUSTON METRO. STRONG/MARGINALLY SVR WIND GUSTS/HAIL MAY
ACCOMPANY THIS ACTIVITY AS STRONG DEEP SHEAR -- OVER 50 KT -- IS
INDICATED BY HGX VWP DATA. HOWEVER...BOUNDARY LAYER INSTABILITY IS
DECREASING IN RESPONSE TO NOCTURNAL COOLING AND LEADING WAA
PRECIPITATION...WHICH COULD MITIGATE THE SVR THREAT TO SOME EXTENT.
REGARDLESS...WITH A STRENGTHENING COLD POOL CIRCULATION...THE SVR
THREAT MAY BE MAINTAINED PAST THE 04Z EXPIRATION TIME...POTENTIALLY
WARRANTING LOCAL TEMPORAL EXTENSION UNTIL 05Z OR 06Z.
..COHEN.. 04/03/2013
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...HGX...
LAT...LON 29089566 29549589 29989580 30179551 30149510 29929465
29599450 29129498 29089566
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