SPC MD 642

MD 0642 CONCERNING TORNADO WATCH 214…215… FOR CENTRAL AND ERN OK/SERN KS/SWRN MO/NWRN AR


MESOSCALE DISCUSSION 0642
NWS STORM PREDICTION CENTER NORMAN OK
0119 AM CDT TUE MAY 01 2012

AREAS AFFECTED...CENTRAL AND ERN OK/SERN KS/SWRN MO/NWRN AR

CONCERNING...TORNADO WATCH 214...215...

VALID 010619Z - 010715Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 214...215...CONTINUES.

TORNADO POTENTIAL HAS DECREASED OVER THE PAST 1-2 HOURS...WITH
STORMS NOW ORGANIZED IN A MUCH MORE LINEAR FASHION.  ATTM...A
COMPLEX LINE OF STORMS EXTENDS FROM SWRN MO/NERN OK/SERN KS SWWD
INTO S CENTRAL OK...WITH THE STRONGEST STORMS NOW OVER NERN OK WHERE
A FAST-MOVING BOW ECHO CONTINUES MOVING EWD TOWARD SWRN MO/NWRN AR.

AT ITS CURRENT EWD SPEED OF AROUND 50 KT...THIS BOW WILL BE EXITING
THE STRONGER INSTABILITY AXIS IN THE NEXT 1-2 HOURS.  THUS...IT
REMAINS UNCERTAIN WHETHER A NEW/DOWNSTREAM WW WILL BE REQUIRED AFTER
THE 01/07Z EXPIRATION OF WW 214/215.

..GOSS.. 05/01/2012

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

ATTN...WFO...SGF...TSA...ICT...FWD...OUN...

LAT...LON   37469363 36409350 35719393 35569532 34939608 34029678
            33899813 34459824 35589719 36059641 37169602 37469363

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