SPC MD 664

MD 0664 CONCERNING SEVERE THUNDERSTORM WATCH 163… FOR NORTHWEST KS AND CENTRAL/NORTHEAST NEB


MESOSCALE DISCUSSION 0664
NWS STORM PREDICTION CENTER NORMAN OK
0630 PM CDT THU MAY 16 2013

AREAS AFFECTED...NORTHWEST KS AND CENTRAL/NORTHEAST NEB

CONCERNING...SEVERE THUNDERSTORM WATCH 163...

VALID 162330Z - 170100Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 163
CONTINUES.

SUMMARY...SEVERE TSTM WATCH 163 CONTINUES UNTIL 01Z ACROSS PORTIONS
OF SOUTHWEST/WEST-CENTRAL NEB AND NORTHWEST KS...WITH CONTINUED
POTENTIAL FOR ISOLATED SEVERE HAIL/WIND. SOME ADDITIONAL SEVERE TSTM
DEVELOPMENT IS POSSIBLE INTO ADDITIONAL PORTIONS OF NORTHEAST
NEB...ALTHOUGH A WATCH IS NOT ANTICIPATED. OVERALL STORM INTENSITY
WILL LIKELY TEND TO WANE AFTER SUNSET.

DISCUSSION...SCATTERED TSTMS...SOME STRONG/SEVERE...ARE OCCURRING ON
THE IMMEDIATE EAST/SOUTHERN ARCING PERIPHERY OF AN EASTWARD-MOVING
VORTICITY MAXIMA/MCV ACROSS SOUTHWEST/SOUTH-CENTRAL NEB. THIS
INCLUDES A NORTHEAST-SOUTHWEST ORIENTED LINEAR CLUSTER OF STORMS
ACROSS NORTHWEST KS...WHERE A 49 KT GUST WAS MEASURED ON THE
GOODLAND ASOS AROUND 2215Z. A SPATIAL EXTENSION OF SEVERE TSTM WATCH
163 MAY BE WARRANTED ACROSS NORTHWEST KS.

FARTHER NORTHEAST...OTHER STRONG/POTENTIALLY SEVERE TSTMS WILL OCCUR
OVER THE NEXT FEW HOURS ACROSS PARTS OF NORTH-CENTRAL/NORTHEAST
NEB...ON THE NORTH-NORTHEAST PERIPHERY OF THE MCV QUASI-FOCUSED
ROUGHLY ALONG A WEST-EAST ORIENTED FRONTAL ZONE THAT EXTENDS ACROSS
NORTHERN NEB. AROUND 1000 J/KG OF MLCAPE WITHIN THE CORRIDOR...ALONG
WITH MODESTLY STRONG DEEP LAYER SOUTHWESTERLIES ABOVE THE SURFACE
/PER REGIONAL DERIVED WIND DATA/...WILL ALLOW FOR SOME
SEMI-SUSTAINED MULTICELLS CAPABLE OF ISOLATED BOUTS OF
HAIL/WIND...PRIMARILY PRIOR TO SUNSET.

..GUYER.. 05/16/2013

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

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

LAT...LON   39310180 39760059 40539948 41189924 42159936 42239800
            41699668 41189758 40349793 38630034 39310180

via SPC Forecast Products http://www.spc.noaa.gov/products/md/md0664.html