MESO: Mesoscale Discussion 1322

ACUS11 KWNS 201919
SWOMCD
SPC MCD 201919
NEZ000-KSZ000-202045-

MESOSCALE DISCUSSION 1322
NWS STORM PREDICTION CENTER NORMAN OK
0219 PM CDT MON JUN 20 2011

AREAS AFFECTED...NORTHWEST/NORTH-CENTRAL KS INTO
SOUTH-CENTRAL/EAST-CENTRAL NEB

CONCERNING...TORNADO WATCH 523...

VALID 201919Z - 202045Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 523 CONTINUES.

PARTICULARLY DANGEROUS TORNADO WATCH 523 CONTINUES UNTIL 01Z...WITH
AN APPRECIABLE TORNADO RISK EXPECTED TO PERSIST/INCREASE ESPECIALLY
FROM FAR NORTHERN KS INTO SOUTH-CENTRAL NEB THROUGH MID/LATE
AFTERNOON.

AN IMPRESSIVE SUPERCELL WITH A HISTORY OF TORNADOES IS ONGOING IN
NORTHWEST KS JUST NORTH OF THE HILL CITY AREA AS OF 1915Z...WITH A
LIKELY REAR FLANK DOWNDRAFT INDUCED GUST ALSO NOTED PER A RECENT 46
KT WESTERLY GUST AT HLC. AS A 991 MB ANALYZED SURFACE LOW ACROSS
NORTHERN KS CONTINUES TO SPREAD NORTH-NORTHEASTWARD...A VERY TORNADO
CONDUCIVE ENVIRONMENT WILL REMAIN IMMEDIATELY NEAR/JUST NORTH OF THE
SURFACE LOW AND IN VICINITY A SSW-NNE ORIENTED SURFACE BOUNDARY THAT
EXTENDS ACROSS SOUTH-CENTRAL/EAST-CENTRAL NEB AND A NEIGHBORING
WEST-EAST WARM FRONT THAT CONTINUES TO SHIFT EASTWARD INTO EASTERN
NEB.

IT IS ENTIRELY POSSIBLE THAT THIS SUPERCELL...AND PERHAPS OTHER
SURFACE BASED VIGOROUS/SUPERCELLULAR DEVELOPMENT...WILL POSE AN
APPRECIABLE TORNADO THREAT INTO SOUTH-CENTRAL NEB FROM 20-22Z AND
BEYOND. THE AFOREMENTIONED SUPERCELL COULD IMPACT AREAS NEAR/EAST OF
HOLDREGE AND KEARNEY...AND NEAR/WEST OF HASTINGS INCLUDING THE
MINDEN AREA BY LATE THIS AFTERNOON. THIS IS A VERY DANGEROUS
SITUATION. ASIDE FROM POSSIBLE TORNADOES...LARGE HAIL WILL BE A
CONCERN.

..GUYER.. 06/20/2011

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

ATTN...WFO...OAX...GID...LBF...GLD...

LAT...LON 39439920 39510004 40979988 41979910 41949813 41449735
39979835 39439920

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