Sunday, November 7, 2010

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 071946
SWODY1
SPC AC 071945

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0145 PM CST SUN NOV 07 2010

VALID 072000Z - 081200Z

...NO SVR TSTM AREAS FORECAST...

...WESTERN CONUS...
LITTLE CHANGE TO PRIOR OUTLOOK/ASSOCIATED REASONING. REMOVED CENTRAL
ROCKIES TSTM PORTION AS COVERAGE SHOULD REMAIN RATHER SPARSE /SUB 10
PERCENT/ THE REMAINDER OF THE AFTERNOON.

..GUYER.. 11/07/2010

.PREV DISCUSSION... /ISSUED 0955 AM CST SUN NOV 07 2010/

...WRN CONUS...
AXIS OF LARGE-SCALE UPPER-LEVEL TROUGH ALONG THE W COAST WILL
GRADUALLY SHIFT INLAND THROUGH EARLY MON. AS MID-LEVEL LAPSE RATES
STEEPEN...SPORADIC LIGHTNING STRIKES WILL BE POSSIBLE FROM THE
WA/ORE/NRN CA COAST INTO THE NWRN GREAT BASIN THROUGH THE PERIOD.
ISOLATED TSTMS APPEAR MOST PROBABLE ACROSS THE SACRAMENTO VALLEY
DURING THE LATE AFTERNOON IN A ZONE OF STRONGER FORCED ASCENT
ASSOCIATED WITH A VORT MAX EMBEDDED WITHIN BASAL PORTION OF THE
TROUGH.

ELSEWHERE...A FEW LIGHTNING STRIKES WILL BE POSSIBLE OVER THE CNTRL
ROCKIES THROUGH THE AFTERNOON IN ASSOCIATION WITH A LEAD SHORT WAVE
TROUGH. SCANT BUOYANCY WILL HAMPER OVERALL TSTM COVERAGE.

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