SPC MD 1774

MD 1774 CONCERNING SEVERE THUNDERSTORM WATCH 505… FOR FAR SOUTHERN NEB AND NORTHERN/EAST-CENTRAL KS

MESOSCALE DISCUSSION 1774
NWS STORM PREDICTION CENTER NORMAN OK
0623 PM CDT MON SEP 07 2015

AREAS AFFECTED...FAR SOUTHERN NEB AND NORTHERN/EAST-CENTRAL KS

CONCERNING...SEVERE THUNDERSTORM WATCH 505...

VALID 072323Z - 080100Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 505
CONTINUES.

SUMMARY...ISOLATED DAMAGING WIND GUSTS/SEVERE HAIL AND POTENTIALLY A
TORNADO REMAINS A POSSIBILITY MAINLY ACROSS PARTS OF
NORTHEAST/EAST-CENTRAL KS IN/NEAR SEVERE THUNDERSTORM WATCH
505...WHICH CONTINUES UNTIL 9 PM CDT/02Z.

DISCUSSION...EARLIER /19Z-22Z/ EAST/SOUTHEASTWARD-MOVING SUPERCELL
ALONG THE KS/NEB BORDER VICINITY HAS CONSIDERABLY WEAKENED ACROSS
FAR NORTHEAST KS...SEEMINGLY AS IT ENCOUNTERED EARLY-DAY MCS
RESIDUAL CLOUD COVER AND SOMEWHAT COOLER TRAJECTORIES. A BIT FARTHER
SOUTH...THE MAIN SEVERE RISK IN/NEAR SEVERE THUNDERSTORM WATCH 505
SHOULD BE THE POTENTIAL FOR SUPERCELL-RELATED HAIL/WIND AND POSSIBLY
A TORNADO ACROSS EAST-CENTRAL KS IN VICINITY AN OUTFLOW BOUNDARY
WHERE LOW-LEVEL SHEAR/SRH AND INSTABILITY IS MAXIMIZED. A FEW
STRONGER WIND GUSTS COULD ALSO OCCUR OVER THE NEXT HOUR OR TWO
/ROUGHLY THROUGH 01Z/ ACROSS SOUTH-CENTRAL KS IN ASSOCIATION WITH A
HOT/DEEPLY MIXED BOUNDARY LAYER IN AREAS NEAR A WEAK SURFACE
LOW/SOUTH-SOUTHWESTWARD EXTENDING SURFACE TROUGH.

..GUYER.. 09/07/2015

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

ATTN...WFO...OAX...TOP...ICT...GID...

LAT...LON   40259861 40339621 38859560 37799688 38599863 39539874
            40259861 

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from SPC Mesoscale Discussions http://1.usa.gov/1K3Ev9w