SWODY1
SPC AC 301620
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1120 AM CDT SUN OCT 30 2011
VALID 301630Z - 311200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A RELATIVELY BENIGN CONVECTIVE PATTERN WILL PERSIST THROUGH EARLY
MONDAY WITH DRY/STABLE CONDITIONS ACROSS THE MAJORITY OF THE CONUS.
ONE EXCEPTION WILL BE ACROSS S FL INVOF A STALLED FRONT. THE 12Z
MIAMI AND KEY WEST SOUNDINGS REVEALED WEAK INSTABILITY IMMEDIATELY N
OF THE FRONT. THIS BOUNDARY IS EXPECTED TO MOVE SLOWLY NWD
TONIGHT...SUPPORTING A RISK FOR ISOLATED THUNDERSTORMS THROUGH
TONIGHT. LOW-LEVEL AND DEEP-LAYER VERTICAL SHEAR WILL BE MARGINALLY
SUPPORTIVE OF ROTATING STORMS ALONG THE BOUNDARY...BUT THE SEVERE
STORM RISK SHOULD REMAIN MINIMAL GIVEN THE WEAK INSTABILITY.
ANOTHER MINOR EXCEPTION WILL BE ACROSS ERN IA/NE MO/NW IL THIS
AFTERNOON. ASCENT DOWNSTREAM FROM AN AMPLIFYING MIDLEVEL TROUGH AND
STEEP LAPSE RATES WILL SUPPORT LOW-TOPPED CONVECTION AND ISOLATED
LIGHTNING STRIKES THIS AFTERNOON IN AN ENVIRONMENT WITH MUCAPE OF
100-200 J/KG.
..THOMPSON/SMITH.. 10/30/2011
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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