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Displaying AFOS PIL: SWOMCD Product Timestamp: 2003-05-08 07:56 UTC
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000 ACUS11 KWNS 080757 SWOMCD SPC MCD 080756 GAZ000-ALZ000-081100- MESOSCALE DISCUSSION 0840 NWS STORM PREDICTION CENTER NORMAN OK 0256 AM CDT THU MAY 08 2003 AREAS AFFECTED...PORTIONS E-CENTRAL AL THROUGH CENTRAL GA CONCERNING...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAINFALL VALID 080756Z - 081100Z HEAVY RAINFALL POTENTIAL WILL PERSIST ANOTHER 2-3 HOURS IN BAND OF CONVECTION ALIGNED FROM JUST E BHM ESEWD ACROSS CENTRAL GA...TO NEAR MCN BY 10Z. RAIN RATES LOCALLY NEAR 3 INCHES/HOUR ARE PROBABLE. ALSO...ISOLATED POTENTIALLY SEVERE TSTM EVIDENT OVER TALBOT COUNTY AS OF 740Z. THIS OR ANY OTHER TSTMS WHICH DEVELOP ALONG SRN EDGE OF CONVECTIVELY-ENHANCED BOUNDARY MAY POSE THREAT OF DAMAGING GUST OR BRIEF TORNADO. SFC ANALYSIS SHOWS BOUNDARY FROM 20 SSE BHM 15 NNE AUO 30 ENE CSG MCN. MXX VWP SHOWS MOISTURE RICH 30-40 KT WSWLY LLJ PROVIDING INFLOW INTO THIS BAND. THERE IS JUST ENOUGH MOISTURE IN LOWEST 100 MB OF MODIFIED RUC SOUNDINGS TO OFFSET NEAR MOIST ADIABATIC MIDLEVEL LAPSE RATES AND YIELD 300-800 J/KG MUCAPE. REGIONAL VWP INDICATE WEAK SHEAR IN L,OW-MIDLEVELS ABOVE LLJ...AND WITH SUCH WEAKNESSES IN SHEAR/INSTABILITY...SEVERE THREAT ALSO APPEARS MARGINAL ATTM. HOWEVER...PW 1.5-1.75 INCH AND 20-30 KT SR INFLOW SUGGESTS HEAVY RAIN POTENTIAL WILL CONTINUE FOR A FEW MORE HOURS. NEARLY UNIDIRECTIONAL LOW-MIDLEVEL WIND PROFILE ABOVE SFC WILL CONTINUE WITH STRONG COMPONENT PARALLEL TO BOUNDARY...ALLOWING FOR ADDITIONAL TRAINING OF CELLS. ..EDWARDS.. 05/08/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...FFC...BMX... 32348323 32818571 33388628 33548538 33068301
203 ACUS11 KWNS 080757 SWOMCD SPC MCD 080756 GAZ000-ALZ000-081100- MESOSCALE DISCUSSION 0840 NWS STORM PREDICTION CENTER NORMAN OK 0256 AM CDT THU MAY 08 2003 AREAS AFFECTED...PORTIONS E-CENTRAL AL THROUGH CENTRAL GA CONCERNING...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAINFALL VALID 080756Z - 081100Z HEAVY RAINFALL POTENTIAL WILL PERSIST ANOTHER 2-3 HOURS IN BAND OF CONVECTION ALIGNED FROM JUST E BHM ESEWD ACROSS CENTRAL GA...TO NEAR MCN BY 10Z. RAIN RATES LOCALLY NEAR 3 INCHES/HOUR ARE PROBABLE. ALSO...ISOLATED POTENTIALLY SEVERE TSTM EVIDENT OVER TALBOT COUNTY AS OF 740Z. THIS OR ANY OTHER TSTMS WHICH DEVELOP ALONG SRN EDGE OF CONVECTIVELY-ENHANCED BOUNDARY MAY POSE THREAT OF DAMAGING GUST OR BRIEF TORNADO. SFC ANALYSIS SHOWS BOUNDARY FROM 20 SSE BHM 15 NNE AUO 30 ENE CSG MCN. MXX VWP SHOWS MOISTURE RICH 30-40 KT WSWLY LLJ PROVIDING INFLOW INTO THIS BAND. THERE IS JUST ENOUGH MOISTURE IN LOWEST 100 MB OF MODIFIED RUC SOUNDINGS TO OFFSET NEAR MOIST ADIABATIC MIDLEVEL LAPSE RATES AND YIELD 300-800 J/KG MUCAPE. REGIONAL VWP INDICATE WEAK SHEAR IN L,OW-MIDLEVELS ABOVE LLJ...AND WITH SUCH WEAKNESSES IN SHEAR/INSTABILITY...SEVERE THREAT ALSO APPEARS MARGINAL ATTM. HOWEVER...PW 1.5-1.75 INCH AND 20-30 KT SR INFLOW SUGGESTS HEAVY RAIN POTENTIAL WILL CONTINUE FOR A FEW MORE HOURS. NEARLY UNIDIRECTIONAL LOW-MIDLEVEL WIND PROFILE ABOVE SFC WILL CONTINUE WITH STRONG COMPONENT PARALLEL TO BOUNDARY...ALLOWING FOR ADDITIONAL TRAINING OF CELLS. ..EDWARDS.. 05/08/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...FFC...BMX... 32348323 32818571 33388628 33548538 33068301