SWODY1
SPC AC 301614
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1114 AM CDT WED APR 30 2008
VALID 301630Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...NRN ROCKIES INTO NRN/CENTRAL PLAINS...
UPPER SYSTEM WILL CONTINUE TO STRENGTHEN AS IT SPREADS ACROSS THE
NRN/CENTRAL ROCKIES THROUGH THE PERIOD...WITH STRONG MID LEVEL JET
NOSING AROUND BASE OF TROUGH INTO THE CENTRAL PLAINS. ASSOCIATED
SURFACE LOW WAS ALREADY BEGINNING TO TAKE SHAPE OVER THE CENTRAL
HIGH PLAINS AHEAD OF STRONG COLD FRONT NOW PUSHING ESEWD ACROSS
MT/CENTRAL WY. SECONDARY LOW OVER SWRN ND THIS MORNING IS EXPECTED
TO LOSE DEFINITION AS A LOW CONSOLIDATES OVER THE NEB PANHANDLE BY
THIS EVENING INVOF TRIPLE POINT ALONG COLD FRONT AND LEE TROUGH.
ENVIRONMENT AHEAD OF THESE FEATURES INTO THE CENTRAL/NRN HIGH PLAINS
WILL REMAIN QUITE DRY WITH PW AOB .4 INCHES AND SURFACE DEW POINTS
AROUND 40F THIS MORNING WHICH COULD DROP SIGNIFICANTLY THIS
AFTERNOON WITH DEEP DIURNAL MIXING. DEEPENING ASCENT AND VERY STEEP
LAPSE RATES SHOULD SUPPORT LOW-TOPPED...HIGH-BASED MOIST CONVECTION
SPREADING EWD ACROSS THE HIGH PLAINS THROUGH THE EVENING INCLUDING A
FEW THUNDERSTORMS. A FEW STRONGER GUSTS CAN BE EXPECTED...WITH
ISOLATED GUSTS AROUND SEVERE LIMITS.
..EVANS/GRAMS.. 04/30/2008
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