[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 271952
SWODY1
SPC AC 271951

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0151 PM CST FRI JAN 27 2006

VALID 272000Z - 281200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 W MRF 10 WSW MAF
20 E PVW 30 NNE BGD 40 WSW GCK 15 SE ITR 30 SSW IML 30 SSE LBF 30 E
HSI 30 SW LWD 20 NNW COU 15 SSE TBN 30 S HRO 30 W TXK 35 N LFK 20
SSE LFK 45 ESE GLS ...CONT... 50 SE CRP LRD.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 N BLI SEA EUG 35
ENE 4BK 30 WSW CEC.

...NO SVR TSTM AREAS FORECAST...

...SRN AND CNTRL PLAINS...
AN UPPER-TROUGH EVIDENT ON WATER VAPOR IMAGERY NEAR THE FOUR CORNERS
REGION WILL SLIDE EWD TONIGHT SPREADING A BAND OF FOCUSED
LARGE-SCALE ASCENT INTO NORTH TX...OK AND KS LATE TONIGHT. AHEAD OF
THE APPROACHING SYSTEM...A STRONG 60 KT LOW-LEVEL JET WILL ADVECT
LOW-LEVEL MOISTURE NWD INTO THE REGION. IN RESPONSE TO THE
INCREASING LOW-LEVEL MOISTURE AND STEEPENING LAPSE RATES FROM THE
WEST...ELEVATED INSTABILITY IS FORECAST TO DEVELOP OVERNIGHT IN WEST
TX...WRN KS AND SPREAD EWD. THIS COMBINED WITH THE STRONG ASCENT AND
LIFT ASSOCIATED WITH THE LOW-LEVEL JET WILL ALLOW WIDESPREAD SHOWERS
AND THUNDERSTORMS TO DEVELOP FROM SRN KS SWD ACROSS OK INTO THE TX
HILL COUNTRY. AS THE SYSTEM APPROACHES...A MID-LEVEL JET IS FORECAST
TO NOSE INTO THE REGION WHICH WILL INCREASE VERTICAL SHEAR FROM WEST
TO EAST ACROSS THE REGION. FORECAST SOUNDINGS SHOW 0-6 KM SHEAR
VALUES REACHING ABOUT 50 KT LATE TONIGHT...SUGGESTING THE
ENVIRONMENT WILL BECOME FAVORABLE FOR ELEVATED SUPERCELLS. THE STEEP
MID-LEVEL LAPSE RATES EXCEEDING 7.0 C/KM APPEAR FAVORABLE FOR HAIL
WHICH SHOULD OCCUR WITH THE STRONGER CELLS ALONG THE INSTABILITY
AXIS IN THE 08Z TO 12Z TIMEFRAME.

..BROYLES.. 01/27/2006

...NOTICE...
THE STATION RELATIVE POINTS IN THIS PRODUCT WILL BE
DISCONTINUED ON 14 FEBRUARY 2006 BUT WILL REMAIN AVAILABLE
IN THE FOLLOWING PRODUCTS:

   WMO HEADER:       AWIPS ID:
   WUUS01            PTSDY1
   WUUS02            PTSDY2
   WUUS03            PTSDY3

A SERVICE CHANGE NOTICE ...SCN05-39... PROVIDES DETAILS
ON THE TRANSITION. FOR ADDITIONAL DETAILS SEE THE FOLLOWING
WEB ADDRESS USING LOWER CASE LETTERS:
WWW.NWS.NOAA.GOV/OM/NOTIF.HTM