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000 ACUS02 KWNS 240543 SWODY2 SPC AC 240542 DAY 2 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1142 PM CST MON NOV 23 2009 VALID 251200Z - 261200Z ...NO SVR TSTM AREAS FORECAST... ...SYNOPSIS... UPR LOW CURRENTLY OVER THE CNTRL PLNS IS FCST TO OPEN INTO A WAVE AND WEAKEN AS IT EJECTS INTO ONTARIO/QUEBEC AND NEW ENGLAND ON WEDNESDAY. NEXT IN A SERIES OF IMPULSES...NOW OVER WCNTRL ALBERTA...WILL DIG SEWD INTO THE MIDWEST BY 12Z THURSDAY. MEANWHILE...SUB-TROPICAL JET SUPPRESSED OVER CNTRL MEXICO AND THE GULF BASIN WILL CARRY A DISTURBANCE ACROSS THE GULF OF MEXICO TOWARD FL. INITIAL CDFNT TIED TO THE WEAKENING LEAD SYSTEM WILL BECOME REINFORCED BY A NEW FRONT BY WEDNESDAY EVENING. THIS NEW CP AIR MASS WILL REACH THE OH/TN VLYS BY EARLY THURSDAY. TO THE S...AN OLD FRONT SITUATED OVER CNTRL FL AND THE CNTRL GULF OF MEXICO WILL VACILLATE AS SFC LOWS MIGRATE ENE ALONG IT. BY EARLY THURSDAY...THE FRONT WILL BEGIN TO SURGE SWD AS THE PRIMARY CYCLOGENESIS ZONE BEGINS TO SHIFT OFF THE FL ATLC CST. THIS FRONT WILL BE THE FOCUS FOR DEEP MOIST CONVECTION ON WEDNESDAY. ...CNTRL/SRN FL... NUMEROUS SHOWERS AND TSTMS WILL LIKELY BE ONGOING EARLY IN THE PD ACROSS THE CNTRL/ERN GULF BASIN AND PARTS OF PENINSULAR FL. THIS WILL TEND TO REINFORCE THE RESIDUAL BAROCLINIC ZONE OVER CNTRL FL. ALTHOUGH LATEST GUIDANCE IS VARIED ON INSTABILITY S OF THE FRONT...PRIND THAT THE AIR MASS WILL MOISTEN WITH MLCAPES OF 1000-1500 J/KG OVER THE SRN THIRD OF THE STATE. MID-LVL LAPSE RATES WILL LIKELY REMAIN POOR...BUT ADDITIONAL TSTMS WILL LIKELY DEVELOP ALONG SRN FRINGES OF MORNING ACTIVITY AND/OR SEPARATELY IN THE FREE WARM SECTOR AS THE SUBTROPICAL DISTURBANCE APCHS THE REGION. DEEP LAYER SHEAR WILL BE MARGINALLY SUPPORTIVE FOR ISOLD AND BRIEF ORGANIZED STORMS WITH PERHAPS DMGG WIND GUSTS. ..RACY.. 11/24/2009
