May 15, 2006 1300 UTC Day 1 Convective Outlook Updated: Mon May 15 12:50:25 UTC 2006 Probabilistic to Categorical Outlook Conversion Table (Effective Feb 14, 2006).
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SPC AC 151245 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0745 AM CDT MON MAY 15 2006 VALID 151300Z - 161200Z ...THERE IS A SLGT RISK OF SVR TSTMS OVER PARTS OF THE EASTERN FL PENINSULA... ...EASTERN FL PENINSULA... PERSISTENT UPPER LOW OVER THE EASTERN STATES WILL REMAIN IN PLACE THROUGH TODAY...WITH MAIN SURFACE BAROCLINIC ZONE STRETCHING ACROSS SOUTHERN GA/NORTH FL AND ALONG THE CAROLINA COAST. AIR MASS ALONG AND SOUTH OF FRONT WILL BE MOIST AND MODERATELY UNSTABLE WITH AFTERNOON MLCAPE VALUES OVER 1500 J/KG. DEEP WESTERLY FLOW ACROSS THE FL PENINSULA SHOULD LIMIT INLAND PROGRESS OF EAST COAST SEA BREEZE...PROVIDING A FOCUS FOR AFTERNOON THUNDERSTORM DEVELOPMENT ALONG THE IMMEDIATE COAST. FAVORABLE DEEP LAYER VERTICAL SHEAR WILL BE PRESENT FOR UPDRAFT ROTATION AND THE POSSIBILITY OF HAIL/DAMAGING WINDS IN STRONGER CELLS. AN ISOLATED TORNADO ALSO CANNOT BE RULED OUT DUE TO BOUNDARY INTERACTIONS. ACTIVITY SHOULD DIMINISH IN INTENSITY SHORTLY AFTER 00Z. ...AZ/NM... WESTERN PERIPHERY OF NORTHERN MID LEVEL WINDS EXTENDS ALONG THE ROCKIES INTO EASTERN AZ/WESTERN NM. SUFFICIENT LOW/MID LEVEL MOISTURE AND STEEP LAPSE RATES WILL LIKELY BE PRESENT IN THIS REGION FOR SCATTERED AFTERNOON/EVENING THUNDERSTORMS. DESPITE WEAK VERTICAL SHEAR...ISOLATED STRONG CELLS CAPABLE OF GUSTY WINDS AND HAIL ARE POSSIBLE. ORGANIZED SEVERE STORMS ARE NOT ANTICIPATED IN THIS REGION TODAY. ...EASTERN NC... MORNING CLOUDINESS OVER EASTERN NC WILL LIKELY ERODE THIS AFTERNOON...ALLOWING AIR MASS TO BECOME MODERATELY UNSTABLE AHEAD OF SURFACE COLD FRONT. SCATTERED THUNDERSTORMS MAY DEVELOP AFTER 18Z OVER EASTERN NC...MOVING OFFSHORE BEFORE 00Z. THIS REGION WILL BE BENEATH 70 KNOT MID LEVEL JET MAX...WITH MORE THAN SUFFICIENT VERTICAL SHEAR FOR ORGANIZED/SEVERE STORMS. AREAL COVERAGE MAY BE LIMITED...BUT GUSTY WINDS AND HAIL ARE POSSIBLE FROM ANY SUSTAINED STORM IN THIS REGION TODAY. ..HART/CROSBIE.. 05/15/2006 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z |