SPC MESOSCALE DISCUSSION 1357 FOR CNTRL/ERN NEB
CONCERNING...SEVERE THUNDERSTORM POTENTIAL...

VALID 030029Z - 030300Z

AREAS OF CONVECTION ARE LIKELY TO INCREASE ACROSS PORTIONS OF
CNTRL/ERN NEB IN THE NEXT HOUR. WW IS LIKELY TO BE ISSUED SHORTLY.

SURFACE MESOANALYSIS DEPICTS WARM FRONT/STATIONARY BOUNDARY FROM
JUST NORTH OF OFK...WNWWD TO SOUTH OF ANW IN NRN NEB. AREAS IN 
PROXIMITY OF THIS BOUNDARY ARE MOST LIKELY TO UNDERGO CONVECTIVE
INITIATION IN THE NEXT HOUR. BESIDES THE SLOW-MOVING FRONTAL
BOUNDARY...MLCAPE VALUES RANGE FROM 2000-2500 J/KG WITH DEWPOINTS
GENERALLY IN THE LOW-MID 60S SOUTH OF THE BOUNDARY WITH UPPER 60S-
LOWER 70S DEWPOINTS NORTH OF THE BOUNDARY. BOTH 18Z MESOETA AND 21Z
RUC2 DEPICT AN INCREASE IN THE SSWLY 850MB LLJ BETWEEN 03/03Z-06Z
WHILE RECENT 03/00Z LBF RAOB REVEALS VERY STEEP LAPSE RATES /8.5
C/KM/ WITH OVER 2500 J/KG OF CAPE. AN INCREASE IN CONVECTION
APPEARS IMMINENT IN THESE AREAS...WITH A PRIMARY THREAT OF STRONG
DOWNBURST WINDS AND LARGE HAIL. 

..NADEN.. 07/03/01