nov 27 image

nov 27 image
t-storm risk

Monday, December 21, 2009

dec 21 none t-storm outlook


...NO TSTM AREAS FORECAST...




...SYNOPSIS...

THE MAJORITY OF THE CONUS WILL BE COOL/STABLE IN THE WAKE OF THE

WEEKEND BLIZZARD ALONG THE ATLANTIC COAST. AN INITIAL SHORTWAVE

TROUGH MOVING INLAND OVER ORE WILL PHASE WITH A SEPARATE CLOSED LOW

DIGGING SEWD FROM VANCOUVER ISLAND. STEEP MID LEVEL LAPSE RATES

WILL ACCOMPANY THE AMPLIFYING TROUGH...BUT INSTABILITY AND

THUNDERSTORM POTENTIAL WILL REMAIN NEGLIGIBLE THROUGH THE PERIOD.

OTHERWISE... RETURN FLOW OF A MODIFYING CONTINENTAL POLAR AIR MASS

WILL COMMENCE ACROSS S TX BY TONIGHT IN CONJUNCTION WITH SRN HIGH

PLAINS LEE CYCLOGENESIS. HOWEVER...LACK OF APPRECIABLE FORCING FOR

ASCENT AND RELATIVELY WARM MID LEVEL TEMPERATURES WILL PRECLUDE THE

DEVELOPMENT OF DEEP CONVECTION.

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