[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 100219
SWOMCD
SPC MCD 100219 
OHZ000-KYZ000-TNZ000-INZ000-100315-

MESOSCALE DISCUSSION 0218
NWS STORM PREDICTION CENTER NORMAN OK
0819 PM CST THU MAR 09 2006

AREAS AFFECTED...CENTRAL-ERN KY/FAR SERN IND/SWRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 55...

VALID 100219Z - 100315Z

LOW-TOPPED FORCED LINE OF CONVECTION WILL CONTINUE TO POSE A THREAT
FOR DAMAGING WINDS ACROSS THE SERN/ERN PART OF WW 55 THROUGH 0330Z. 
DESPITE LACK OF LIGHTNING ALONG THIS CONVECTIVE LINE...CURRENTLY
EXTENDING FROM MONTGOMERY TO LAUREL COUNTIES IN ERN KY...NARROW AXIS
OF WEAK INSTABILITY ALONG THIS LINE COMBINED WITH FORWARD SPEED AT
40-45 KT SUGGESTS THREAT FOR DAMAGING WINDS TO PERSIST.

ALTHOUGH WIDESPREAD PRECIPITATION EXTENDS ACROSS MOST OF WW 55...
FAST MOVING /ENE AT 55 KT/ UPSTREAM BOW ECHO WITH THE APEX CURRENTLY
APPROACHING WRN KY COUNTIES OF MCLEAN TO TODD IS EXPECTED TO ENTER
SW-W PART OF WW 55 AROUND 03Z. GIVEN THE APPROACH OF THE UPSTREAM
BOW...THREAT FOR SEVERE STORMS REMAINS ACROSS ALL OF WW 55 AS STRONG
MID-LEVEL COOLING/FORCING FOR ASCENT WITH NEGATIVELY TILTED TROUGH
OVERSPREADS LOW-LEVEL MOISTURE AXIS.

..PETERS.. 03/10/2006

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

ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...

39548478 39478272 38328269 37208299 36588395 36638640
38078588 

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