SWOMCD
SPC MCD 202021
OKZ000-TXZ000-202145-
MESOSCALE DISCUSSION 1324
NWS STORM PREDICTION CENTER NORMAN OK
0321 PM CDT MON JUN 20 2011
AREAS AFFECTED...CENTRAL/EASTERN OK AND NORTH-CENTRAL TX
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 202021Z - 202145Z
AS A SUPPLEMENT TO EARLIER MESOSCALE DISCUSSION 1320...VISIBLE
SATELLITE IMAGERY OVER THE PAST HOUR REFLECTS INCREASING HIGH BASED
CU ALONG THE DRYLINE FROM WEST-CENTRAL OK SOUTHWESTWARD INTO TX NEAR
THE ABILENE AREA. AS LARGE SCALE FORCING FOR ASCENT CONTINUES TO
OVERSPREAD THE REGION AND REMAINING CINH WANES...IT SEEMS LIKELY
THAT AT LEAST SCATTERED DEEP CONVECTION WILL INITIATE/INCREASE
THROUGH THE 21Z-23Z TIMEFRAME. A WATCH WILL LIKELY BE ISSUED SHORTLY
FOR AT LEAST PORTIONS OF CENTRAL/EASTERN OK...WITH A WATCH ALSO
POSSIBLE ACROSS PORTIONS OF NORTH-CENTRAL TX WHERE SOMEWHAT MORE
ISOLATED SEVERE DEVELOPMENT IS ANTICIPATED. AN INITIAL SUPERCELLULAR
LARGE HAIL/SOME TORNADO THREAT WILL EXIST ESPECIALLY ACROSS
OK...BEFORE A DAMAGING WIND THREAT LIKELY EVOLVES THROUGH EARLY
EVENING.
..GUYER.. 06/20/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TSA...FWD...OUN...SJT...
LAT...LON 32220009 33299922 35349816 36729781 36929673 36839596
35939561 33549644 32369767 31839912 32220009
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