DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 150722
SWODY3
SPC AC 150720

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0220 AM CDT FRI MAR 15 2013

VALID 171200Z - 181200Z

...NO SVR TSTM AREAS FORECAST...

AN UPPER-LEVEL TROUGH IS FORECAST TO DIG ESEWD ACROSS THE NRN AND
CNTRL ROCKIES ON SUNDAY. AHEAD OF THE SYSTEM...A LOW IS FORECAST TO
QUICKLY DEEPEN ACROSS THE NRN HIGH PLAINS WITH A WELL-DEFINED LEE
TROUGH EXTENDING SWD ACROSS ERN WY...ERN CO INTO NE NM. SFC TEMPS
SHOULD WARM INTO THE UPPER 40S IN SE WY TO THE UPPER 60S IN SERN CO
ALLOWING FOR INSTABILITY TO DEVELOP TO THE EAST OF THE FRONT RANGE
OF ERN CO. AS LARGE-SCALE ASCENT MOVES INTO THE CNTRL HIGH PLAINS
SUNDAY AFTERNOON...THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE ALONG
THE SFC TROUGH WITH CONVECTION POSSIBLY MOVING EWD INTO THE WRN
NEB...WRN KS AND INTO THE NRN TX PANHANDLE DURING THE EVENING. THIS
ACTIVITY IS NOT EXPECTED TO REACH SEVERE LIMITS DUE TO THE WEAK
MOISTURE AND INSTABILITY.

FURTHER TO THE EAST FROM THE OZARKS NEWD INTO THE OH
VALLEY...THUNDERSTORMS WILL ALSO BE POSSIBLE SUNDAY EVENING INTO THE
OVERNIGHT PERIOD AS A LEAD SHORTWAVE TROUGH MOVES EWD ACROSS THE MID
MS VALLEY. THE THUNDERSTORM ACTIVITY SHOULD BE CONCENTRATED ON THE
WRN EDGE OF A 40 TO 55 KT LOW-LEVEL JET AND ALONG THE NRN EDGE OF
THE MOIST SECTOR WHERE SFC DEWPOINTS ARE FORECAST TO BE IN THE 50S
F. THIS ACTIVITY MAY BE ELEVATED IN NATURE AND IS ALSO NOT EXPECTED
TO POSE A SEVERE THREAT.

..BROYLES.. 03/15/2013

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