SWODY1
SPC AC 151620
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1020 AM CST TUE FEB 15 2011
VALID 151630Z - 161200Z
...NO SVR TSTM AREAS FORECAST...
...PACIFIC NW COAST...
SHORT-WAVE TROUGH AND ASSOCIATED 90-100 KT MIDLEVEL JET STREAK WILL
MOVE ONSHORE TODAY IN ADVANCE OF MORE INTENSE UPSTREAM SYSTEM WHICH
IS FORECAST TO APPROACH THE NRN CA COAST LATE TONIGHT INTO WED
MORNING. DYNAMIC COOLING/HEIGHT FALLS ALONG CYCLONIC SIDE OF
MIDLEVEL JET CORE COUPLED WITH SOME BOUNDARY LAYER WARMING AND
CONTINUED...MOIST ONSHORE FLOW IN THE LOW LEVELS WILL RESULT IN THE
DEVELOPMENT OF WEAK INSTABILITY LATER TODAY WITH SBCAPE APPROACHING
100-300 J/KG.
TSTMS ARE EXPECTED TO INCREASE IN AREAL COVERAGE TODAY IN ADVANCE OF
LEAD SHORT-WAVE TROUGH WITHIN KINEMATIC ENVIRONMENT CHARACTERIZED BY
A STRONG VERTICAL SHEAR PER CURRENT MEDFORD AND PORTLAND ORE VWP
DATA. AS SUCH...SOME POTENTIAL WILL EXIST FOR
ORGANIZED/LONGER-LIVED STORM STRUCTURES EMBEDDED WITHIN LARGER
PRECIPITATION SHIELD WITH A RISK FOR LOCALLY STRONG WIND GUSTS
AND/OR A BRIEF TORNADO. THIS SEVERE WEATHER THREAT IS EXPECTED TO
DIMINISH THROUGH THE EVENING AS THE BOUNDARY LAYER COOLS/STABILIZES.
..MEAD.. 02/15/2011
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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.
No comments:
Post a Comment