MESO: Mesoscale Discussion 0131

ACUS11 KWNS 210219
SWOMCD
SPC MCD 210219
OHZ000-KYZ000-INZ000-210345-

MESOSCALE DISCUSSION 0131
NWS STORM PREDICTION CENTER NORMAN OK
0819 PM CST THU FEB 20 2014

AREAS AFFECTED...ERN HALF OF IND...WRN/CENTRAL KY...WRN OH

CONCERNING...TORNADO WATCH 14...

VALID 210219Z - 210345Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 14 CONTINUES.

SUMMARY...THE SVR THREAT CONTINUES ACROSS WW 14 AND IN COUNTIES N/NE
OF THE NRN WW BOUNDARY. A NEW WW WILL BE ISSUED ACROSS NRN IND AND
WRN OH.

DISCUSSION...A COLD FRONT EXTENDS S/SE FROM A DEEPENING SFC LOW OVER
SRN WI ACROSS WRN PORTIONS OF IND/KY AT 02Z...WHILE AN EAST-WEST
WARM FRONT LIFTS NWD ACROSS NRN IND AND OH. THE COLD FRONT WILL
CONTINUE MOVING QUICKLY EWD...SUPPORTED BY 7 TO 8 MB/2 HR PRESSURE
RISES BEHIND THE FRONT. DESPITE MODEST BUOYANCY...STG/SVR TSTMS IN
ADVANCE OF THE FRONT WILL MOVE NEWD AT 45-50 KTS AND PERSIST FOR
SEVERAL MORE HOURS ACROSS WW 14...AIDED BY STRONG FORCING FOR ASCENT
ASSOCIATED WITH A NEWD-LIFTING SHORTWAVE ACROSS THE UPPER
MIDWEST/GREAT LAKES REGION. WITHIN THE STRONGLY-SHEARED
ENVIRONMENT...MULTIPLE LINES OF SVR TSTMS WILL CONTINUE TO POSE A
WIDESPREAD THREAT FOR DAMAGING WINDS...SOME SIGNIFICANT...WITH
EMBEDDED QLCS/MESOVORTEX LOW-LEVEL ROTATIONAL SIGNATURES CAPABLE OF
PRODUCING TORNADOES. TSTMS ACROSS NRN PORTIONS OF WW 14 AND JUST TO
THE NORTH...IN THE VICINITY OF THE WARM FRONT...WILL CONTINUE TO
POSE A RISK FOR DAMAGING WINDS INTO WRN OH TO THE EAST OF WW 14. A
NEW WW WILL BE ISSUED SHORTLY ACROSS NRN IND AND WRN OH.

..BUNTING/CORFIDI.. 02/21/2014

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

ATTN...WFO...CLE...JKL...ILN...LMK...IWX...IND...PAH...

LAT...LON 39818349 38058469 36678496 36698622 36768681 37288703
38098681 38538678 38698663 39068665 39478648 39998618
40478621 41388560 41698515 41698445 41478299 40618316
39818349

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