SPC AC 140530
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1230 AM CDT MON APR 14 2008
VALID 141200Z - 151200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A HIGHLY AMPLIFIED PATTERN WILL CONTINUE THROUGH THE DAY ONE
PERIOD...FEATURING FULL LATITUDE TROUGH IN THE E AND INTENSIFYING
SHORT WAVE TROUGH WHICH WILL MOVE INTO PACIFIC NW AND NRN ROCKIES.
IN THE LOW LEVELS...COLD FRONT ATTENDANT TO PACIFIC NW TROUGH
INITIALLY FROM THE ID PNHDL SWWD INTO N-CNTRL CA WILL SHIFT EWD
THROUGH THE NRN ROCKIES...AND MORE SEWD INTO THE GREAT BASIN.
...PACIFIC NW INTO NRN ROCKIES...
LATEST MODEL GUIDANCE INDICATES THAT SIGNIFICANT HEIGHT FALLS /I.E.
120-150 M PER 12-HR/ WILL ACCOMPANY MIDLEVEL TROUGH EWD/SEWD THROUGH
THE PACIFIC NW INTO THE NRN ROCKIES AND GREAT BASIN. THIS DYNAMIC
COOLING COUPLED WITH OVERALL COLDNESS OF MIDLEVEL THERMAL TROUGH
/-30 TO -32 C AT 500 MB/ WILL CONTRIBUTE TO THE STEEPENING OF LAPSE
RATES AND THE DEVELOPMENT OF WEAK CONVECTIVE INSTABILITY
TODAY...BOTH ALONG PACIFIC FRONT AND WITHIN MOIST...ONSHORE FLOW
ACROSS COASTAL ORE/WA. A FEW DEEPER CONVECTIVE ELEMENTS WILL BE
CAPABLE OF ISOLATED LIGHTNING STRIKES IN BOTH AREAS...MAINLY THIS
AFTERNOON INTO EVENING.
..MEAD.. 04/14/2008
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z
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