SWODY1
SPC AC 210044
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0744 PM CDT TUE OCT 20 2009
VALID 210100Z - 211200Z
...NO SVR TSTM AREAS FORECAST...
...SRN ROCKIES INTO SRN/CNTRL HIGH PLAINS...
STRONG MID/UPPER LOW CURRENTLY APPROACHING THE FOUR CORNERS REGION
WILL CONTINUE EWD TONIGHT THROUGH NM TOWARD THE TX BORDER.
ASSOCIATED PACIFIC COLD FRONT WILL CONCURRENTLY SHIFT EWD THROUGH NM
INTO WRN TX BY WED MORNING.
SCATTERED TSTMS ARE IN PROGRESS AS OF 0030Z FROM VICINITY OF COLD
FRONT OVER WRN/CNTRL NM NEWD TO ALONG/AHEAD OF LEE TROUGH OVER WRN
TX AND THE PNHDL. WHILE LOW-LEVEL MOISTURE REMAINS SOMEWHAT
MARGINAL...00Z SOUNDINGS INDICATE THAT CONSIDERABLE MID-LEVEL
COOLING IS ACCOMPANYING THE UPPER SYSTEM...RESULTING IN AT LEAST
MARGINAL CONVECTIVE INSTABILITY PRESENT ACROSS WARM SECTOR. AS
SUCH...EXPECT CLUSTERS OF TSTMS TO BE MAINTAINED TONIGHT AHEAD OF
PACIFIC FRONT AND PARENT MID/UPPER LOW WITH ACTIVITY GRADUALLY
SPREADING EWD/NEWD THROUGH THE SRN/CNTRL PLAINS. THE STRONGER
STORMS WILL BE CAPABLE OF MARGINALLY SEVERE HAIL AND/OR
WINDS...THOUGH THE WEAK INSTABILITY SHOULD PRECLUDE A MORE ORGANIZED
SEVERE THREAT.
..MEAD.. 10/21/2009
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