Looks like worst part will remain off-shore
Posted by
JAC on 1/13/2010, 6:15 am
DAY 3 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0159 AM CST WED JAN 13 2010 VALID 151200Z - 161200Z ...SYNOPSIS... THE EASTWARD ACCELERATION OF THE CLOSED LOW...WITHIN AN AMPLIFIED TROUGH IN THE SOUTHERN BRANCH OF A PERSISTENT SPLIT UPPER FLOW... MAY BE A BIT SLOWER OUT OF THE MEXICAN PLATEAU THAN EARLIER ANTICIPATED. BUT...THIS FEATURE STILL APPEARS LIKELY TO REMAIN PROGRESSIVE...AS MODELS INDICATE ANOTHER VERY STRONG ZONAL PACIFIC JET NOSING TOWARD THE PACIFIC COAST DURING THIS FORECAST PERIOD. THE MID-LEVEL CIRCULATION IS PROGGED TO GRADUALLY MIGRATE INTO/ THROUGH THE LOWER RIO GRANDE VALLEY AND WESTERN GULF COAST REGION LATE FRIDAY/FRIDAY NIGHT...WITH LARGE-SCALE FORCING CONTRIBUTING TO A DEVELOPING FRONTAL WAVE OVER THE GULF OF MEXICO. SUBSTANTIAL CONVECTIVE DEVELOPMENT APPEARS POSSIBLE...BUT PRIMARILY IN THE PROXIMITY OF THE WARM SECTOR...WHICH IS EXPECTED TO REMAIN OVER THE OPEN WATERS OF THE WESTERN THROUGH SOUTHEASTERN GULF. ...TEXAS COAST... GENERALLY WEAK DESTABILIZATION...PARTICULARLY INLAND OF COASTAL AREAS...IS EXPECTED TO REMAIN A LIMITING FACTOR CONCERNING THE RISK FOR SEVERE STORMS DURING THIS PERIOD. BUT AN AREA OF ENHANCED FORCING/SHEAR...WHICH MAY IMPACT PARTS OF THE LOWER TEXAS COAST BY 12Z FRIDAY IN ASSOCIATION WITH AN INITIAL SPEED MAXIMUM ROUNDING THE LOW...MAY LINGER THROUGH THE MORNING. ONE OR TWO STRONG/MARGINALLY SEVERE STORMS IS NOT OUT OF THE QUESTION ...AND COULD REMAIN A POSSIBILITY INTO EARLY AFTERNOON...BEFORE THE FRONTAL WAVE BEGINS TO EVOLVE OFFSHORE. ..KERR.. 01/13/2010
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