FXUS64 KHUN 100530 AAC AFDHUN AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 1230 AM CDT MON MAR 10 2014 .UPDATE... FOR 06Z TAFS && .DISCUSSION... /ISSUED 955 PM CDT SUN MAR 9 2014/ THE CURRENT SHORT TERM FORECAST GRIDS ARE IN GOOD CONDITION THIS EVENING WITH NO SIGNIFICANT CHANGES REQUIRED IN THIS UPDATE. THE WEAK COLD FRONT WHICH PUSHED SOUTHWARD THROUGH THE REGION LAST NIGHT HAS LOST ALL DEFINITION WITH LIGHT WINDS AND VERY WEAK THERMAL AND MOISTURE GRADIENTS NOTED IN REGIONAL SURFACE OBS. THE LIGHT WIND FLOW REGIME AND RESIDUAL BOUNDARY LAYER MOISTURE MAY BE SUFFICIENT FOR THE FORMATION OF LIGHT MIST/HAZE AROUND SUNRISE...AS AIR TEMPERATURES APPROACH CURRENT DEWPOINT VALUES. HOWEVER...A LOWER DECK OF STRATUS CLOUDS -- CURRENTLY ACROSS NORTHERN MISSISSIPPI -- MAY DEVELOP EASTWARD ACROSS THE FORECAST AREA LATE TONIGHT AS ELEVATED WARM ADVECTION STRENGTHENS. DUE TO THE POTENTIAL EASTWARD DEVELOPMENT OF THIS STRATUS DECK AND UNCERTAINTIES ON HOW THIS WILL IMPACT MIST/HAZE FORMATION...WE WILL NOT ADD THESE WEATHER ELEMENTS TO THE FORECAST AT THIS TIME. OTHERWISE...TEMPERATURE/DEW POINT AND WIND GRIDS ARE IN LINE WITH CURRENT TRENDS AND WILL REQUIRE NO ADJUSTMENTS. 70/DD && .AVIATION... FOR 06Z TAFS...NO CHANGES TO PREVIOUS AVIATION FORECAST REASONING. RECENT SATELLITE IMAGERY INDICATES THAT CIGS WILL LOWER TO ARND 3500 FT OVERNIGHT AS STRATUS DECK CONTINUES TO ADVANCE EWD FROM NRN MISSISSIPPI. EXPECT CIGS TO REMAIN AT THIS LEVEL THRU 10/14Z -- AND WITH A LGT WEST FLOW EXPECTED OVERNIGHT...CONDS WILL ALSO BE FAVORABLE FOR A PERIOD OF REDUCED VSBY IN HZ BTWN 10-14Z. STRONGER MIXING AFTER 14Z WILL ALLOW STRATUS TO SCATTER...WITH A SW FLOW OF 10G18 KTS CONTINUING THRU EARLY EVENING. A BKN STRATUS DECK WILL LIKELY BECOME ESTABLISHED OVER THE REGION ONCE AGAIN AFTER 11/00Z. 70/DD && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && $$ FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WEATHER.GOV/HUNTSVILLE.
Posted on: Mon, 10 Mar 2014 05:31:51 +0000
Trending Topics
Recently Viewed Topics
© 2015