SWOMCD
SPC MCD 191530
NCZ000-TNZ000-VAZ000-GAZ000-ALZ000-MSZ000-191630-
MESOSCALE DISCUSSION 1022
NWS STORM PREDICTION CENTER NORMAN OK
1030 AM CDT SAT JUN 19 2010
AREAS AFFECTED...NRN MS...NRN AL...NWRN GA...ERN TN AND WRN NC
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 191530Z - 191630Z
THREAT FOR MAINLY ISOLATED DAMAGING WIND WILL EXIST THIS AFTERNOON
WITH STORMS DEVELOPING FROM NRN MS THROUGH NRN AND CNTRL AL...NWRN
GA...ERN TN AND WRN NC. THIS AREA IS BEING UPGRADED TO A SLIGHT
RISK...AND A WW IS POSSIBLE DEPENDING ON CONVECTIVE TRENDS.
AT MID-DAY AN EXPANSIVE OUTFLOW BOUNDARY IS MOVING SOUTHEASTWARD
THROUGH ERN KY AND ERN TN THEN WWD INTO NRN AL AND NRN MS. THE
ATMOSPHERE SOUTH OF THIS FEATURE IS ALREADY MODERATELY UNSTABLE WITH
2000-2500 J/KG MLCAPE. STRONG DIABATIC HEATING OF THE BOUNDARY LAYER
WILL RESULT IN FURTHER DESTABILIZATION THIS AFTERNOON. FLOW ALOFT IS
WEAK WNWLY ALONG NRN PERIPHERY OF UPPER RIDGE. HOWEVER...GIVEN THE
PROPENSITY FOR STORMS TO ORGANIZE INTO MULTICELL LINES ALONG THE
OUTFLOW BOUNDARY...A SLIGHTLY GREATER CONCENTRATION OF STRONG TO
DAMAGING WIND GUSTS WILL BE POSSIBLE THAN IS USUALLY EXPECTED IN A
PULSE STORM ENVIRONMENT.
..DIAL.. 06/19/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GSP...MRX...FFC...BMX...HUN...MEG...JAN...
LAT...LON 34028850 34328752 34938574 36618328 36118228 34588374
33148593 32748793 33248874 34028850
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