ZCZC SPCSWOMCD ALL
ACUS11 KWNS 180448 
SPC MCD 180448 
NEZ000-180545-

MESOSCALE DISCUSSION 0352
NWS STORM PREDICTION CENTER NORMAN OK
1148 PM CDT FRI APR 17 2015

AREAS AFFECTED...SWRN NEB

CONCERNING...TORNADO WATCH 69...

VALID 180448Z - 180545Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 69 CONTINUES.

SUMMARY...OVERALL SEVERE RISK CONTINUES TO DIMINISH AND AN
ADDITIONAL WW IS NOT EXPECTED.

DISCUSSION...CONVECTION HAS LARGELY WEAKENED...BUT STILL PERSISTS
WITHIN VALID PORTION OF WW 69 OVER SWRN NEB. GIVEN A
COOLING/STABILIZING BOUNDARY LAYER...THE TORNADO RISK HAS BECOME
NEGLIGIBLE. WITH ONLY MODEST EFFECTIVE SHEAR AMIDST MEAGER
BUOYANCY...HAIL SIZE WILL LIKELY REMAIN SUB-SEVERE THROUGH 06Z.

..GRAMS.. 04/18/2015

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

ATTN...WFO...LBF...

LAT...LON   41310112 41030049 40720031 40430041 40410081 40440099
            40840145 41190156 41310112 

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