Strong storms will impact North and Central Alabama through the overnight hours. The air is cool and stable, so we don’t expect any issues with damaging wind or tornadoes, but due to cold air aloft, hail is likely in the stronger storms.
SPC indicates there will be no severe weather watch issued…
MESOSCALE DISCUSSION 0314
NWS STORM PREDICTION CENTER NORMAN OK
1032 PM CDT TUE MAR 29 2011
AREAS AFFECTED…WRN AL
CONCERNING…SEVERE POTENTIAL…WATCH UNLIKELY
VALID 300332Z – 300430Z
ELEVATED TSTMS CAPABLE OF ISOLATED OCCURRENCES OF MARGINALLY SEVERE
HAIL WILL SPREAD EWD THROUGH WRN INTO CNTRL PARTS OF AL INTO EARLY
WEDNESDAY MORNING. A WW IS NOT CURRENTLY ANTICIPATED.
CLUSTER OF ELEVATED TSTMS ONGOING OVER MS AS OF 0315Z WILL SPREAD
EWD ACROSS MCD AREA…EMBEDDED WITHIN STRENGTHENING SWLY WIND FIELD
OBSERVED BY REGIONAL VAD/PROFILER DATA ABOVE STABLE NEAR-SURFACE
LAYER. 00Z SOUNDING DATA OVER THE LOWER MS VALLEY INDICATED THE
PRESENCE OF AN ELEVATED-MIXED LAYER /EML/ WHICH…IN PART…HAS
SUPPORTED THE DEVELOPMENT OF NUMEROUS HAIL PRODUCING TSTMS UPSTREAM
OVER LA AND MS. CONSIDERABLE PROCESSING OF EML HAS LIKELY OCCURRED
OWING TO THE WIDESPREAD TSTM ACTIVITY…WHICH SHOULD TEND TO
DIMINISH THE DEGREE OF ELEVATED INSTABILITY AND RESULTANT SEVERE
WEATHER THREAT.
..MEAD.. 03/30/2011
