[MCD] SWOMCD

Tue Apr 18 21:08:39 UTC 2006

ACUS11 KWNS 182106
SWOMCD
SPC MCD 182106 
ALZ000-TNZ000-182300-

MESOSCALE DISCUSSION 0545
NWS STORM PREDICTION CENTER NORMAN OK
0406 PM CDT TUE APR 18 2006

AREAS AFFECTED...NRN AL...SRN MIDDLE TN

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 182106Z - 182300Z

ISOLATED SVR TSTMS WILL BE POSSIBLE ALONG A STATIONARY BOUNDARY
ACROSS NRN AL NWD INTO SRN MIDDLE TN. AREA WILL BE MONITORED FOR A
POSSIBLE WW. 

DESPITE UPPER LEVEL RIDGING...ISOLATED CONVECTION HAS DEVELOPED OVER
NRN AL ALONG STATIONARY SFC BOUNDARY. ALTHOUGH LOW LEVEL FLOW WAS
RELATIVELY WEAK...MID LEVEL NWLY FLOW FROM 30-40 KTS AND MODERATE
INSTABILITY /MLCAPES AROUND 2000 J/KG/ ARE FAVORABLE FOR AT LEAST AN
ISOLATED SVR THREAT. DEGREE OF ADDITIONAL INITIATION REMAINS
UNCERTAIN GIVEN LACK OF SAT DATA AND WEAK SYNOPTIC-MESOSCALE
FORCING.

..CROSBIE.. 04/18/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...OHX...BMX...HUN...

34828572 36028710 35768768 35358781 34528761 33818659
33508595 33738550 33878549 

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