DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 260823
SWODY3
SPC AC 260822

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0222 AM CST WED FEB 26 2014

VALID 281200Z - 011200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
A TRANSITION IN THE UPPER FLOW PATTERN WILL CONTINUE DAY 3...WITH A
MORE WLY REGIME CONTINUING TO EVOLVE E OF THE ROCKIES -- AND EVEN
SOME ANTICYCLONIC CURVATURE WITHIN THE FLOW BECOMING MANIFEST OVER
THE CENTRAL U.S. LATER IN THE PERIOD. THIS ANTICYCLONIC EVOLUTION
WILL OCCUR DOWNSTREAM OF A SUBSTANTIAL ERN PACIFIC UPPER LOW...WHICH
WILL SHIFT SEWD WITH TIME AND APPROACH SRN CA DURING THE SECOND HALF
OF THE PERIOD.

AT THE SURFACE...A WEAK COLD FRONT IS FORECAST TO EVOLVE AND SHIFT
GRADUALLY SWD ACROSS CENTRAL/S-CENTRAL U.S. AS A PARENT LOW -- AND
ASSOCIATED UPPER VORT MAX -- EXITS THE HIGH PLAINS AND MOVES ACROSS
THE CENTRAL U.S. OVER TIME. MEANWHILE...A DEEP LOW CROSSING THE ERN
PACIFIC IN CONJUNCTION WITH THE AFOREMENTIONED UPPER SYSTEM WILL
NEAR THE CENTRAL/SRN CA COAST BY THE END OF THE PERIOD.

THE MAIN ZONE OF CONVECTION -- AND EMBEDDED LIGHTNING POTENTIAL --
THIS PERIOD WILL DEVELOP OVER THE SWRN QUARTER OF THE COUNTRY...AS
THIS ERN PACIFIC STORM SYSTEM ADVANCES. WEAK CAPE SHOULD PRECLUDE
ANY APPRECIABLE SEVERE RISK...THOUGH ISOLATED THUNDER POTENTIAL MAY
EXPAND AS FAR E AS THE MOGOLLON RIM OF CENTRAL AZ THROUGH THE SECOND
HALF OF THE PERIOD.

..GOSS.. 02/26/2014

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