Area Forecast Discussion
Issued by NWS Huntsville, AL

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000
FXUS64 KHUN 301441 AAB
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
941 AM CDT THU OCT 30 2014

.UPDATE...
MORNING UPDATE.

&&

.DISCUSSION...
ANOTHER UNSEASONABLY COOL DAY IS UNDERWAY ACROSS THE TENNESSEE
VALLEY, WITH MORNING TEMPERATURES HOVERING IN THE UPPER 40S TO AROUND
50 DEGREES UNDER SUNNY SKIES. VALLEY FOG IN NE AL/SRN MIDDLE TN HAS
ALL BUT DISSIPATED AT THIS HOUR, WITH JUST A SMIDGE NOTED ON THE
LATEST VIS IMAGERY IN JACKSON COUNTY. HIGH PRESSURE ENCOMPASSED THE
OH/TN VALLEYS THIS MORNING, AND WILL GRADUALLY SHIFT EASTWARD THROUGH
THE DAY AHEAD OF ANOTHER APPROACHING COLD FRONT. AN H5 CLIPPER SYSTEM
IS APPROACHING UPSTREAM, CURRENTLY ANALYZED OVER THE E/CENTRAL
PLAINS. UPPER TROUGHING/NW FLOW ALOFT WILL STEER THIS FEATURE TOWARD
THE AREA BY TOMORROW, WITH A (MOSTLY) DRY COLD FRONT SWEEPING ACROSS
THE REGION TOMORROW AFTN.

ASIDE FROM A GRADUAL INCREASE IN CLOUD COVER TO OUR NW LATER TODAY,
ANOTHER PLEASANT DAY IS EXPECTED ACROSS THE CWFA WITH AFTN HIGHS
TOPPING OUT IN THE MIDDLE 60S. THE CURRENT FORECAST HANDLES BOTH
ONGOING/EXPECTED TRENDS, SO NO CHANGES WERE WARRANTED.

UPDATED ZONES WILL BE SENT SHORTLY.

12

&&

.AVIATION...
/ISSUED 603 AM CDT THU OCT 30 2014/
FOR 12Z TAFS...HIGH PRESSURE WAS CURRENTLY ACROSS THE REGION. HOWEVER
AN APPROACHING CDFNT/UPPER TROF WILL BEGIN TO AFFECT THE TAF SITES
AFTER 00Z TONIGHT WITH INCREASING AC CLOUDS. OTHERWISE VFR CONDITIONS
ARE EXPECTED THRU THE FCST PERIOD.

07

&&

.PREV DISCUSSION...
/ISSUED 448 AM CDT THU OCT 30 2014/
A COOL START TO THE DAY WITH PATCHY FOG ALONG BODIES OF WATER AND IN
THE VALLEYS THIS MORNING. WITH THE SFC HIGH STRETCHED FROM THE OHIO
VALLEY DOWN TO THE GULF...NORTHERLY WINDS WILL KEEP TEMPS JUST BELOW
SEASONABLE VALUES IN THE MID 60S TODAY WITH DRY CONDITIONS.

AS THE HIGH PRESSURE MOVES SOUTHEAST THROUGHOUT TODAY...A COLD FRONT
WILL CONTINUE TO APPROACH FROM THE NORTHWEST. THIS FRONT WILL MOVE
INTO THE AREA FRIDAY MORNING/AFTERNOON SWEEPING IN THE COLDEST AIR
THUS FAR THIS FALL. THE NORTHERLY WINDS WILL PICK UP BEHIND THE FRONT
TO ALLOW FOR BREEZY CONDITIONS BUT AT THIS TIME NOT ENOUGH FOR A WIND
ADVISORY. WITH THE WINDS STAYING UP THROUGH THE NIGHT...THIS WILL
ASSIST WITH THE REDUCTION OF FROST DEVELOPMENT EVEN WITH TEMPS
DIPPING TO AROUND FREEZING FRIDAY NIGHT/SATURDAY MORNING. EVEN
THOUGH THERE IS NOT MUCH MOISTURE AHEAD OF THE FRONT TO WORK
WITH...KEPT IN A SMALL POP FOR FRIDAY AFTN FOR SLIGHT CHANCE OF A FEW
SHOWERS. THE BEST CHANCE FOR PRECIP WILL STAY TO OUR NORTH/NORTHEAST.

AS THE LOW LIFTS TO THE NE AND HIGH PRESSURE BUILDS IN FROM THE
WEST ON SATURDAY EVENING...WINDS WILL SLACK BY SUNDAY MORNING. THIS
WILL AID IN THE CONCERN FOR FROST/FREEZE SUNDAY MORNING AS TEMPS
WILL BE AROUND FREEZING AGAIN. AS THE HIGH PRESSURE ANCHORS OVER THE
SOUTHEAST THROUGH THE WEEKEND...TEMPS WILL HAVE A SLOW WARM UP TO
START THE NEW WORK WEEK BACK IN THE 60S. OUR NEXT SYSTEM WILL MOVE IN
ON TUESDAY NIGHT/WED AS A COLD FRONT WILL BRING A CHANCE OF RAIN
INTO THE FORECAST.

JMS

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
TN...NONE.
&&

$$

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.



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