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Area Forecast Discussion

765
FXUS64 KHUN 300137 AAB
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
837 PM CDT WED OCT 29 2014

.UPDATE...
TO ADD PATCHY FOG TO RIVERS, LAKES, AND VALLEYS.

&&

.DISCUSSION...

QUIET WEATHER CONDITIONS WILL PREVAIL TONIGHT UNDERNEATH THE
INFLUENCE OF A CP AIRMASS CENTERED OVER IL/IN. THERE IS STILL A LIGHT
WIND OVER PORTIONS OF THE AREA DUE TO THE SLOWLY RELAXING PRESSURE
GRADIENT FROM THE FRONTAL PASSAGE EARLY THIS MORNING.

AS A RESULT OF THE CLEAR SKY AND LIGHT WINDS, RADIATIONAL COOLING
EFFECTS COMBINED WITH CAA WILL PROVIDE CONDITIONS NECESSARY FOR
PATCHY FOG TO DEVELOP IN PROTECTED VALLEYS AND NEAR RIVERS. THE
PRIMARY CAUSE OF THE RIVER FOG IS THE COOL AIR MOVING ACROSS THE
WARMER WATER.

OTHERWISE, TEMPERATURES AND DEWPOINTS LOOK ON TRACK WITH OVERNIGHT
LOWS EXPECTED TO BE IN THE UPPER 30S TO LOW 40S WITH LOWER TEMPS
EXPECTED OVER S MIDDLE TN.

SL.77

&&

.AVIATION...
/ISSUED 625 PM CDT WED OCT 29 2014/
FOR 00Z TAFS...

VFR CONDITIONS ARE EXPECTED TO CONTINUE ACROSS N AL/S MIDDLE TN FOR
THE NEXT 24 HOURS WITH THE POSSIBLE EXCEPTION OF PATCHY FOG NEAR THE
KMSL TERMINAL. BTWN 08-12Z MVFR CONDITIONS ARE POSSIBLE NEAR KMSL
DUE TO REDUCED VISIBILITIES FROM THE PATCHY FOG.

SL.77

&&

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

$$

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



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