451 FXUS64 KHUN 200533 AFDHUN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 1233 AM CDT SAT JUL 20 2013 .UPDATE... FOR 06Z TAFS && .DISCUSSION... /ISSUED 947 PM CDT FRI JUL 19 2013/ ALL OF THE CONVECTION IN THE HUNTSVILLE CWFA HAD DIED OUT OR MOVED OUT UNTIL ABOUT 830 PM, WHEN ONE ROGUE CELL DEVELOPED NEAR HAMPTON COVE...AND HAS JUST KEPT ON GOING. AS A RESULT, A SWATH OF EASTERN MADISON COUNTY IS GETTING A GOOD SHOT OF RAIN THIS EVENING. A 00Z SOUNDING RELEASED BY UAHUNTSVILLE INDICATED STILL SOME RESIDUAL INSTABILITY DESPITE INCREASING DEBRIS CLOUD COVER, AND THE MADISON COUNTY STORM--AND ONE ROGUE STORM IN NORTHEASTERN JACKSON COUNTY--ARE TAPPING INTO THAT. SURFACE AND UPPER-AIR CHARTS ARE RATHER UNREMARKABLE, INDICATING LITTLE SYNOPTIC-SCALE FORCING THAT COULD BE AFFECTING THE AREA. ONCE THESE ISOLATED STORMS DIE DOWN, THE NIGHT SHOULD BE QUIET--BUT RATHER WARM AND MUGGY. SEVERAL SITES ARE STILL IN THE LOW-MID 80S AS OF 02Z, AND EVEN TYPICALLY-COOL SPOTS SUCH AS FORT PAYNE ARE STILL SITTING AT 77, LIKELY DUE TO THE DEBRIS CLOUDS. SO WILL NUDGE LOW TEMPERATURES UP JUST SLIGHTLY, STILL KEEPING WITH A CLIMO-FRIENDLY LOW-MID 70S RANGE ACROSS THE REGION. BCC && .AVIATION... FOR 06Z TAFS...NO CHANGES FROM PREVIOUS AVIATION FORECAST REASONING. VFR CONDS ARE EXPECTED TO CONTINUE AT BOTH MSL/HSV THRU THE NEXT 24 HOURS...WITH A PERSISTENT/LIGHT SSW WIND AND LAYERS OF SCT HIGH- BASED CU/AC. INCREASING ATMOSPHERIC MOISTURE SUGGESTS THAT THE COVERAGE OF SHRA/TSRA MAY BE A BIT HIGHER TOMORROW...AND HAVE INCLUDED VCTS/CB FOR BOTH TERMINALS AFTER 14Z. SFC FLOW TOMORROW WILL REMAIN FROM THE SSW...BUT INCREASE TO 8-10 KNOTS BEGINNING AROUND 14Z. 70/DD && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && $$ FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WEATHER.GOV/HUNTSVILLE.