SWODY2
SPC AC 061721
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1121 AM CST SUN MAR 06 2011
VALID 071200Z - 081200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
BROAD AREA OF SURFACE LOW PRESSURE EXTENDING ACROSS THE GREAT
BASIN/SOUTHWEST/SRN ROCKIES AND INTO THE CENTRAL AND SRN HIGH PLAINS
IS PROGGED TO SHIFT EWD AND CONSOLIDATE SOMEWHAT THIS PERIOD...AS AN
UPPER SHORT-WAVE TROUGH DIGS ESEWD ACROSS THIS REGION. WITH
TIME...THE LEE LOW OVER THE HIGH PLAINS SHOULD SHIFT INTO OK/NWRN
TX...WHILE THE MORE SYNOPTIC LOW SHIFTS INTO THE CO/WY AREA BY THE
END OF THE PERIOD. ELSEWHERE...A SHORT-WAVE TROUGHING WILL SHIFT
ENEWD ACROSS THE NORTHEAST THROUGH THE PERIOD
...SERN NV ACROSS THE FOUR CORNERS EWD INTO SRN KS/NRN OK...
STEEPER LAPSE RATES/COOL AIR ALOFT SPREADING EWD ACROSS THE SRN
ROCKIES IN CONJUNCTION WITH THE UPPER SHORT-WAVE TROUGH WILL PROVIDE
MARGINAL INSTABILITY...SUFFICIENT WHEN COMBINED WITH LARGE-SCALE
ASCENT TO SUPPORT THE DEVELOPMENT OF SHOWERS AND A FEW EMBEDDED
THUNDERSTORMS THIS PERIOD. FARTHER E...INCREASING SLY LOW-LEVEL JET
-- RESPONDING TO THE UPPER VORTICITY ADVECTION/HEIGHT FALLS -- WILL
PROVIDE PERSISTENT THETA-E ADVECTION/ISENTROPIC LIFT ACROSS THE
KS/OK VICINITY. HERE...ELEVATED SHOWERS AND SCATTERED THUNDERSTORMS
MAY DEVELOP LATE...THOUGH BOTH HERE AND FARTHER W...THERMODYNAMIC
AND KINEMATIC COMBINATION APPEARS INSUFFICIENT TO SUPPORT
APPRECIABLE SEVERE POTENTIAL.
..GOSS.. 03/06/2011
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