SWOMCD
SPC MCD 230057
SCZ000-GAZ000-ALZ000-230230-
MESOSCALE DISCUSSION 2358
NWS STORM PREDICTION CENTER NORMAN OK
0657 PM CST TUE NOV 22 2011
AREAS AFFECTED...GA...SERN AL...WRN SC
CONCERNING...TORNADO WATCH 896...
VALID 230057Z - 230230Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 896 CONTINUES.
ISOLATED DAMAGING WIND/TORNADOES COULD REDEVELOP AT ANY TIME WITH
QLCS PROPAGATING EWD FROM NWRN GA AND SERN AL. ALTHOUGH A DOWNSTREAM
WW INTO NERN GA/WRN SC APPEARS UNLIKELY ATTM...THIS AREA IS BEING
CLOSELY MONITORED FOR A POSSIBLE WW.
DESPITE THE PRESENCE OF WEAK INSTABILITY PER 00Z FFC/TLH RAOBS WITH
MLCAPE AROUND 500 J/KG...LOW-LEVEL SWLYS AOA 30 KT ROUGHLY N OF A
TOI TO SAV LINE WILL REMAIN SUPPORTIVE OF SMALL-SCALE LEWPS/BOWS
CAPABLE OF PRODUCING DAMAGING WINDS OR BRIEF TORNADOES. THIS THREAT
SHOULD BE GREATEST THROUGH CNTRL GA INTO PERHAPS NRN GA AND WRN SC
AS THE STRONGEST LOW-LEVEL FLOW SHIFTS EWD. STILL...INCREASINGLY
MARGINAL INSTABILITY WITH NRN EXTENT BREEDS UNCERTAINTY OVER THE
NEED FOR AN EXTENSION/ADDITIONAL WW ISSUANCE. S OF WW 896...THE
SEVERE RISK SHOULD BE LIMITED BY WEAKER LOW-LEVEL FLOW WHICH IS
EXPECTED TO VEER...FURTHER MODERATING THE STRENGTH OF LOW-LEVEL
SHEAR.
..GRAMS.. 11/23/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CAE...GSP...FFC...TAE...BMX...
LAT...LON 34358400 34628327 34568278 34328212 33988187 33438194
31948353 31438426 31398495 31698561 32128539 33268460
34358400
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