SPC AC 231728
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1228 PM CDT THU OCT 23 2003
VALID 241200Z - 251200Z
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 15 SE MFD 25 NW PKB
25 SSE JKL 25 ENE TUP 25 N ELD 25 S MLC 20 NW MKO 30 SSE SZL 25 NNW
SPI 15 SE MFD.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 NW APN 20 NE TVC
45 SSE IMT 10 SSW RHI 40 ENE MSP 15 N ATY 20 S JMS 20 W TVF 40 WNW
INL.
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
RELATIVELY STRONG MID-LEVEL TROUGH NOW OVER WRN CANADA IS FORECAST
TO MOVE SEWD ACROSS THE NRN PLAINS / N CENTRAL U.S. DURING THE DAY 2
PERIOD. ACCOMPANYING COLD FRONT -- INITIALLY FORECAST FROM MN SSWWD
INTO KS / WRN OK WILL ALSO MOVE EWD / SEWD WITH TIME...AND IS
EXPECTED TO EXTEND FROM THE UPPER GREAT LAKES REGION SSWWD INTO THE
MID MS VALLEY AND THEN SWWD ACROSS THE RED RIVER INTO CENTRAL AND
WRN TX.
GREATEST POTENTIAL FOR THUNDERSTORMS THIS PERIOD IS FORECAST ACROSS
THE OZARKS / MID MS / OH VALLEY REGION DURING THE LATTER HALF OF THE
PERIOD. ELEVATED THETA-E ADVECTION IS FORECAST ACROSS THIS REGION
AS LOW-LEVEL JET DEVELOPS / SHIFTS EWD OVERNIGHT. THIS COMBINED
WITH THE APPROACHING UPPER TROUGH SHOULD RESULT IN SUFFICIENT LIFT /
DESTABILIZATION FOR SCATTERED / ELEVATED THUNDERSTORMS.
MORE ISOLATED / LOW-TOPPED THUNDERSTORMS WILL ALSO BE POSSIBLE
ACROSS THE NRN MS VALLEY REGION INTO THE UPPER GREAT LAKES BENEATH
COLDEST MID-LEVEL TEMPERATURES.
OVERALL LACK OF INSTABILITY SHOULD PRECLUDE ANY THREAT FOR SEVERE
HAIL ACROSS THESE AREAS.
..GOSS.. 10/23/2003
...NOTICE...
FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3. THE
INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED FOR 0800Z
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