Friday, August 27, 2010

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 280031
SWODY1
SPC AC 280029

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0729 PM CDT FRI AUG 27 2010

VALID 280100Z - 281200Z

...NO SVR TSTM AREAS FORECAST...

...SRN CA THROUGH SWRN AZ...

A RESERVOIR OF MODERATE INSTABILITY REMAINS ACROSS SRN CA INTO SWRN
AZ WHERE DEWPOINTS IN THE 60S HAVE ADVECTED NWD FROM THE GULF OF CA.
STORMS HAVE BEEN MOST NUMEROUS WITHIN MOIST PLUME AND IN ASSOCIATION
WITH UPPER LOW ACROSS AZ. HOWEVER...ISOLATED STORMS HAVE DEVELOPED
FARTHER WEST ACROSS SRN CA AND SWRN AZ IN ASSOCIATION WITH NWD
ADVANCING OUTFLOW BOUNDARY. STEEP NEAR DRY ADIABATIC LAPSE RATES
THROUGH 700 MB AND LARGE TEMPERATURE-DEWPOINT SPREADS WILL MAINTAIN
A THREAT OF ISOLATED DOWNBURSTS IN THIS REGION THROUGH MID EVENING.

...SERN STATES...

WIDELY SCATTERED MULTICELL STORMS THAT FORMED OVER THE SERN STATES
PERSIST FROM SRN MS ENEWD INTO SC. ISOLATED STRONG WIND GUSTS REMAIN
POSSIBLE...MAINLY THROUGH 03Z. HOWEVER...MOST OF THIS ACTIVITY
SHOULD BEGIN A GRADUAL DECREASING TREND WITH THE ONSET OF NOCTURNAL
COOLING.

..DIAL.. 08/28/2010

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