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Area Forecast Discussion

285
FXUS64 KHUN 302012
AFDHUN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
312 PM CDT THU JUL 30 2015

.DISCUSSION...
AS OF 20Z...A COLD FRONT IS MOVING THROUGH AT LEAST
THE NORTHERN PART OF THE AREA WITH DEW POINTS IN THE LOWER 60S TO THE
NORTH OF THE BOUNDARY AND MIDDLE 70S TO THE SOUTH. THIS DRIER AIR
MASS WILL CONTINUE TO MOVE THROUGH THE AREA LEAVING DRIER AND COOLER
AIR IN ITS WAKE. THERE ARE SOME SLIGHT DIFFERENCES IN THE OVERNIGHT
LOWS WITH GUIDANCE PROBABLY BECAUSE THE WINDS ARE GOING TO HAVE A
HARD TIME DECOUPLING. THIS COULD KEEP LOWS FROM COMPLETELY BOTTOMING
OUT. THEREFORE WENT WITH A BLEND TOWARDS THE HIGHER GUIDANCE BUT THAT
STILL BRINGS LOWS DOWN INTO THE LOWER TO MIDDLE 60S. DRIER AIR WITH
DEW POINTS IN THE LOWER 60S WILL BE IN PLACE OVERNIGHT SO THIS COULD
LEAD TO THE DEVELOPMENT OF SOME PATCHY FOG.

ON FRIDAY...THERE IS A BIT OF A LOW LEVEL JET THAT DEVELOPS OVER THE
SOUTHEAST AND WITH AFTERNOON MIXING...COULD SEE SOME GUSTY WINDS 15-
20MPH. THIS MIXING COULD ALSO HELP DEW POINTS DROP INTO THE UPPER
50S FOR MANY LOCATIONS. OTHERWISE...WILL SEE MOSTLY SUNNY SKIES AND
HIGHS IN THE UPPER 80S TO AROUND 90 WHICH IS CLOSE TO NORMAL FOR
THIS TIME OF YEAR.

SYNOPTICALLY SPEAKING OVERALL....THERE IS VERY LITTLE FLUCTUATION IN
THE PATTERN THROUGH THE NEXT 7 DAYS. THE UPPER RIDGE CENTERED OVER
THE SOUTHWESTERN STATES WILL HOLD STRONG AS AN UPPER LOW ROTATES
OVER THE SOUTHEASTERN CANADIAN PROVINCES. THIS WILL KEEP THE LOCAL
AREA IN A DRY NORTHWESTERLY FLOW. HIGHS WILL BE IN THE LOWER 90S
UNDER MOSTLY SUNNY/CLEAR SKIES AND NO PRECIPITATION IS EXPECTED
THROUGH TUESDAY. AS WELL...WEAK RETURN FLOW AROUND A DEVELOPING
SURFACE HIGH ON MONDAY WILL START TO INCREASE THE DEW POINTS ONCE
AGAIN INTO THE MIDDLE TO UPPER 60S.

THE PREVIOUSLY MENTIONED UPPER LOW WILL DIP FARTHER SOUTH ON
WEDNESDAY AND WILL DRAG A COLD FRONT SOUTH TOWARDS THE AREA WED INTO
THURSDAY. THIS WILL BE THE NEXT CHANCE OF ANY SHOWERS/THUNDERSTORMS
FOR THE AREA. WITH IT BEING SO FAR OUT...TIMING MAY STILL BE OFF A
DAY OR TWO SO WILL CONTINUE THE SLIGHT CHANCE TO CHANCE POPS.

LN

&&

.AVIATION...
/ISSUED 1240 PM CDT THU JUL 30 2015/
FOR 18Z TAFS...
A COLD FRONT CURRENTLY MOVING IN A NORTH TO SOUTH FASHION ACROSS THE
AREA WILL BRING DRIER AIR OVER THE REGION. THIS SHOULD EFFECTIVELY
MINIMIZE SHOWER/THUNDERSTORM CHANCES IN/NEAR THE TAF SITES THIS
AFTERNOON. WITH DRIER AIR IN PLACE THIS EVENING...CLEAR SKIES ARE
FORECAST TONIGHT THROUGH FRIDAY MORNING. NNE WINDS IN THE 10-15KT
RANGE THIS AFTERNOON SHOULD DIMINISH TO AROUND 5KT TONIGHT. NE WINDS
AROUND 10KT ARE FORECAST ON FRIDAY...A FEW HOURS AFTER DAYBREAK.

RSB

&&

.PRELIMINARY POINT TEMPS/POPS...
HUNTSVILLE    66  90  66  93 /  10   0   0   0
SHOALS        68  90  68  93 /  10   0   0   0
VINEMONT      66  87  66  90 /  10   0   0   0
FAYETTEVILLE  65  88  65  90 /  10   0   0   0
ALBERTVILLE   68  88  66  90 /  10   0   0   0
FORT PAYNE    66  89  64  91 /  10   0   0   0

&&

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

$$

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



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