We’re expecting heavy rain and numerous intense storms to move through our area 2 times on Saturday. The first time will begin around midday and continue through the early part of Saturday evening. The second surge looks to be after 10pm and continuing into early morning Sunday.
The Slight (30%) chance for Severe Storms in our area means we’re concerned about the likelihood of multiple Tornadoes and Damaging winds.
Tornado Watches and Warnings will be issued.
Make plans now to keep up with quickly changing weather conditions near you this weekend.
Here’s the latest information from the NWS Severe Storm Center in Oklahoma…
NWS STORM PREDICTION CENTER NORMAN OK 1217 AM CST FRI FEB 17 2012 VALID 181200Z - 191200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM EXTREME SERN TX THROUGH SRN PORTIONS OF THE GULF COASTAL STATES... ...SYNOPSIS... A PROGRESSIVE SPLIT FLOW REGIME WILL CHARACTERIZE THE SYNOPTIC PATTERN SATURDAY. PRIMARY FEATURE OF INTEREST IS CUTOFF UPPER LOW LOCATED OVER THE NRN GULF OF CALIFORNIA AS OF LATE THURSDAY EVENING. THIS FEATURE WILL ACCELERATE EWD IN RESPONSE TO AN UPSTREAM WAVE APPROACHING THE PACIFIC NW. MODEL CONSENSUS IS THAT THIS TROUGH AXIS WILL BE LOCATED FROM CNTRL TX INTO NERN MEXICO EARLY SATURDAY AND WILL SUBSEQUENTLY ADVANCE INTO THE CNTRL GULF COAST STATES SATURDAY NIGHT. CYCLOGENESIS WILL COMMENCE OVER SERN TX SATURDAY MORNING IN VICINITY OF BAROCLINIC ZONE AND WITHIN DIVERGENT EXIT REGION OF UPPER JET ROUNDING BASE OF THE TROUGH. THIS LOW WILL LIKELY DEEPEN AS IT DEVELOPS NEWD INTO THE SERN STATES...REACHING AL OR GA LATE IN THE PERIOD. ...GULF COASTAL STATES... OBSERVATIONAL DATA INDICATE A RESERVOIR OF UPPER 60S DEWPOINTS OVER THE CNTRL GULF SOUTH OF A QUASISTATIONARY FRONT. RETREATING HIGH PRESSURE AND STRENGTHENING LLJ ASSOCIATED WITH DEVELOPING CYCLONE SHOULD CONTRIBUTE TO INLAND ADVANCE OF THE FRONT INTO SRN PORTIONS OF THE GULF COAST STATES. HOWEVER...ISENTROPIC ASCENT NORTH OF THE WARM FRONT WILL RESULT IN AREAS OF WIDESPREAD CLOUDS AND RAIN EARLY IN THE PERIOD FROM ERN TX INTO THE LOWER MS VALLEY WHICH COULD POTENTIALLY LIMIT BOUNDARY LAYER DESTABILIZATION AND SLOW THE NWD PROGRESS OF THE FRONT. NEVERTHELESS...AT LEAST WEAK INSTABILITY WITH 300-500 J/KG SBCAPE SHOULD DEVELOP INLAND DUE PRIMARILY TO NWD ADVECTION OF HIGHER DEWPOINTS. STORMS MAY INCREASE IN INTENSITY ALONG WARM CONVEYOR BELT AND PRE-FRONTAL CONFLUENCE BANDS INITIALLY ACROSS SERN TX COASTAL AREA WHERE WIND FIELDS AND VERTICAL SHEAR WILL STRENGTHEN WITH THE APPROACH OF THE UPPER TROUGH. ACTIVITY WILL SUBSEQUENTLY DEVELOP THROUGH THE GULF COASTAL STATES WARM SECTOR DURING THE DAY AND OVERNIGHT WHERE MOISTENING BOUNDARY LAYER WILL CONTRIBUTE TO POTENTIAL FOR NEAR SURFACE BASED CONVECTION. STRONG EFFECTIVE DEEP SHEAR AND LARGE HODOGRAPHS ACCOMPANYING THE STRENGTHENING LLJ WILL PROMOTE A RISK OF LEWP/BOWS AND EMBEDDED SUPERCELLS. DAMAGING WIND AND ISOLATED TORNADOES WILL BE THE MAIN THREATS WITHIN THE EXPECTED HIGH SHEAR/LOW CAPE ENVIRONMENT. ..DIAL.. 02/17/2012





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