FXUS64 KHUN 150721 AFDHUN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 220 AM CDT MON MAR 15 2010 .DISCUSSION... FORGOTTEN WHAT THE SUN LOOKS LIKE YET? TODAY WILL BE THE SEVENTH DAY IN A ROW OF AT LEAST MOSTLY CLOUDY SKIES IN THE TENNESSEE VALLEY. THEN TOMORROW WILL BE EIGHT...AND WEDNESDAY NINE. THE STREAK OF RAINY DAYS...NOW AT SIX...MIGHT CONTINUE TODAY ALSO. IF IT DOES THOUGH...IT WILL BE WITH JUST SPRINKLES OR VERY LIGHT RAIN. SHORT TERM (TODAY THROUGH TUESDAY NIGHT)... THE SETUP FOR TODAY IS THAT AN UPPER LOW CONTINUES TO SPIN OFFSHORE OF THE MID-ATLANTIC COAST...AND SPOKES OF ENERGY KEEP ROTATING AROUND IT. ANOTHER WILL PASS MAINLY EAST OF HERE TODAY...BUT WE COULD STILL SEE SOME SPRINKLES ESPECIALLY IN THE NORTHEAST HALF OF THE CWFA. SOUNDINGS SHOW THE MOISTURE DEPTH DECREASING THROUGH THE DAY AND WE MIGHT EVEN GET A GLIMPSE OF THAT GIANT YELLOW ORB IN THE SKY BEFORE THE 7 PM SUNSET TIME TONIGHT. WITH SOME POSSIBLE BREAKS IN THE CLOUDS...WILL GO SLIGHTLY WARMER FOR HIGHS TODAY...IN THE MID 50S IN MOST AREAS. THE CLEAR PATCHES WILL ALSO HELP TEMPS DROP A LITTLE MORE TONIGHT...INTO THE MID/UPPER 30S. FINALLY...STEERING FLOW WILL TAKE THE ATLANTIC LOW AWAY ON TUESDAY...AND A RATHER STRONG SFC HIGH WILL BUILD ACROSS THE PLAINS STATES. HOWEVER...COLD AIR THAT MIGHT BE EXPECTED WITH SUCH A HIGH WILL NOT REACH THE SOUTHEAST SINCE THE COLD AIRFLOW IS BEING CUT OFF UP IN CANADA. MEANWHILE...A PAIR OF UPPER LOWS WILL DROP INTO THE DEEP SOUTH...A SRN STREAM ONE FROM THE FOUR CORNERS...AND A NRN STREAM ONE FROM MANITOBA. BOTH OF THESE WILL BE ON THE APPROACH TUESDAY...SPREADING CLOUDS BACK INTO THE AREA AND KEEPING HIGHS IN THE LOW/MID 50S. HOWEVER...IT SHOULD STAY DRY THROUGH TUESDAY NIGHT. EXTENDED (WEDNESDAY THROUGH NEXT MONDAY)... THOSE UPPER LOWS MOVE INTO THE AREA WEDNESDAY...AND MAY BE STRONG ENOUGH AND CREATE ENOUGH INSTABILITY TO SPARK -SHRA WEDNESDAY THROUGH THURSDAY. PRECIP WILL BE QUITE LIGHT JUST AS IT HAS BEEN THE PAST COUPLE DAYS. WILL UNDERCUT TEMP GUIDANCE ON WEDNESDAY AND I MAY STILL BE TOO WARM. THURSDAY...HOWEVER...MAY HAVE ENOUGH BREAKS IN THE CLOUDS TO LET THE AREA ACTUALLY RETURN TO NEAR NORMAL HIGHS AS THE LOW DEPARTS. CLOUDS SHOULD ACTUALLY LEAVE THE AREA FOR ABOUT 36 HOURS THURSDAY NIGHT THROUGH FRIDAY NIGHT AS SOME WEAK UPPER RIDGING BUILDS IN. DEPENDING ON RETURN FLOW...FRIDAY MAY TURN OUT TO BE SLIGHTLY WARM WITH HIGHS IN THE MID/UPPER 60S. HOWEVER...THIS WILL BE SHORT-LIVED AS...SURPRISE...HERE COMES ANOTHER FULL-LATITUDE TROUGH JUST IN TIME FOR NEXT WEEKEND. SATURDAY AND SATURDAY NIGHT IN PARTICULAR ARE LOOKING MORE WET...WITH PERHAPS A BRIEF WINDOW FOR TSRA SATURDAY AFTERNOON AND EARLY EVENING. THIS SYSTEM DOES APPEAR TO BE FOLLOWED BY A DECENT BOUT OF CHILLY AIR...SO WILL UNDERCUT GUIDANCE NEXT SUNDAY AND MONDAY. THERE COULD BE A FREEZE IN THAT TIMEFRAME. FREEZES AT THAT TIME OF YEAR ARE NOT AT ALL UNCOMMON...BUT IT WILL HAVE BEEN ABOUT TWO WEEKS SINCE OUR LAST FREEZE...SO IT IS NOT OUT OF THE QUESTION THAT IT COULD BE AN ISSUE TO PLANTS/AGRICULTURE/ETC. WILL NEED TO BE WATCHED. && .PRELIMINARY POINT TEMPS/POPS... HUNTSVILLE 55 40 54 43 58 / 5 0 0 10 20 SHOALS 56 39 55 43 59 / 0 0 0 10 20 VINEMONT 54 36 53 41 57 / 5 0 0 10 20 FAYETTEVILLE 53 37 53 41 56 / 10 0 0 10 20 ALBERTVILLE 55 38 56 43 58 / 5 0 0 10 20 FORT PAYNE 54 36 54 39 55 / 10 0 0 10 20 && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && $$ JE/23