DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 220636
SWODY3
SPC AC 220635

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1235 AM CST SAT FEB 22 2014

VALID 241200Z - 251200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
A NWLY FLOW REGIME ALOFT WILL PERSIST ACROSS MUCH OF THE CNTRL AND
ERN CONUS WITH AN EXPANSIVE MIDLEVEL JET CORE EXTENDING FROM THE NRN
PLAINS INTO THE NE. AT THE SURFACE...A HIGH PRESSURE RIDGE WILL
EXTEND FROM MT SEWD ACROSS THE MIDWEST AND INTO THE MID
ATLANTIC...PROVIDING COOL AND DRY CONDITIONS.

TO THE S...A STALLED FRONT WILL STRETCH FROM CNTRL TX EWD ACROSS THE
SRN GULF COAST STATES. WEAK INSTABILITY WILL EXIST DUE TO MOISTURE
NEAR THIS BOUNDARY...WITH SPORADIC THUNDERSTORMS POSSIBLE AT TIMES
FROM THE RED RIVER VALLEY INTO THE LOWER MS VALLEY. ELSEWHERE...WEAK
DIURNAL THUNDERSTORMS WILL AGAIN BE POSSIBLE OVER ERN FL.

...RED RIVER VALLEY INTO LOWER MS VALLEY...
WEAK WARM ADVECTION ATOP THE SFC FRONT WILL OCCUR THROUGHOUT THE
PERIOD WITH ONLY MINOR RIPPLES IN THE FLOW ALOFT IN AN OTHERWISE
BROADLY CYCLONIC FLOW REGIME. HOWEVER...LIFT IS EXPECTED TO
GRADUALLY INCREASE OVERNIGHT IN RESPONSE TO SUBTLE HEIGHT FALLS WITH
AN AMPLIFYING TROUGH DIVING S OUT OF CANADA. WHILE THE NAM FORECAST
OF ELEVATED INSTABILITY IS LIKELY TOO HIGH...THERE MAY BE ENOUGH FOR
ISOLATED THUNDERSTORMS ACROSS THE RED RIVER VALLEY...THEN SPREADING
EWD INTO THE LOWER MS VALLEY OVERNIGHT.

..JEWELL.. 02/22/2014

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.