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000
FXUS64 KHUN 130520 AAC
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1220 AM CDT THU JUN 13 2013

.UPDATE...
FOR 06Z TAFS

&&

.DISCUSSION...
/ISSUED 717 PM CDT WED JUN 12 2013/
TEMPERATURES HAVE DECREASED AS THE SUN BEGINS TO SET WITH DEWPOINTS
STILL HOVERING IN THE UPPER 60S TO LOW 70S. THIS TRANSLATES TO HEAT
INDEX VALUES DROPPING BELOW 100 DEGREES FOR ALL LOCATIONS. THUS,
HAVE ALLOWED THE HEAT ADVISORY TO EXPIRE. TEMPERATURES WILL STILL BE
WARMER THAN NORMAL FOR THIS TIME OF YEAR WITH OVERNIGHT LOWS
EXPECTED TO BE IN THE LOW TO MID 70S. THIS MEANS THERE IS STILL A
THREAT FOR HEAT RELATED ILLNESSES AT LEAST FOR THE NEXT COUPLE OF
HOURS.

MADE SOME MINOR UPDATES TO SKY COVER GRIDS TO CHANGE MAINLY TO MOSTLY
CLEAR RATHER THAN PARTLY CLOUDY FOR THE REST OF THE OVERNIGHT PERIOD.
ANALYSIS OF CURRENT SHORT TERM MODEL DATA DOES INDICATE A LOW CHANCE
FOR SHOWER ACTIVITY TOWARDS SUNRISE TOMORROW WITH THE APPROACH OF THE
COLD FRONT. SO, HAVE RETAINED THAT IN THE FORECAST MAINLY FOR THE
NORTHERN PORTIONS OF SOUTHERN MIDDLE TN.

SL.77

&&

.AVIATION...
FOR 06Z TAFS...
VFR CONDITIONS ARE EXPECTED TO CONTINUE ACROSS N AL/S MIDDLE TN FOR
MOST OF THE NEXT 24 HOURS. THE MAIN EXCEPTION WILL BE WITH ANY TSRA
THAT FORM ASSOCIATED WITH A COLD FRONT AND UPPER LEVEL DISTURBANCE
EXPECTED TO CROSS THE REGION BTWN 18-01Z. HAVE INCLUDED VCTS FOR
THAT TIME PERIOD GIVEN CONTINUED SPATIAL COVERAGE UNCERTAINTY. MVFR
TO IFR CATEGORIES ARE POSSIBLE IN THE VICINITY OF ANY OF THESE TSRA.

SL.77

&&

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

$$

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