217
FXUS64 KHUN 270349
AFDHUN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1049 PM CDT WED AUG 26 2026
..NEW NEAR TERM, SHORT TERM, LONG TERM
KEY MESSAGES
UPDATED AT 1048 PM CDT WED AUG 26 2026
- LOW CHANCES FOR SHOWERS AND THUNDERSTORMS WILL BE FORECAST IN
PORTIONS OF FAR NE AL AND FAR NW AL THURSDAY AFTERNOON INTO THE
LATE EVENING; NO IMPACTS ANTICIPATED.
- DANGEROUS HEAT WILL RETURN LATE THIS WEEKEND INTO EARLY NEXT
WEEK WITH HEAT INDICES APPROACHING OR EXCEEDING 100 DEGREES.
NEAR TERM
(REST OF TONIGHT AND THURSDAY)
ISSUED AT 1048 PM CDT WED AUG 26 2026
SHOWERS AND STORMS OBSERVED EARLIER THIS EVENING HAVE FULLY
SHIFTED SOUTHEASTWARD OUT OF THE TENNESSEE VALLEY. CLEARING OF
CLOUD COVER HAS BEGUN TO OCCUR IN PORTIONS OF NORTHERN AL AND
SOUTHERN MIDDLE TN. WHILE ADDITIONAL CLOUDS ARE FORECAST TO FILTER
IN FROM THE COMPLEX TO OUR SOUTHWEST, THESE WILL PRIMARILY REMAIN
OVER NW AL THROUGH THE EARLY MORNING HOURS- KEEPING FOG IN THAT
AREA LIMITED IN COVERAGE. ALONG AND EAST OF I-65, WHERE MORE
LONG-LASTING CLEARING WILL OCCUR, WILL BE MOST AT RISK FOR DENSE
FOG OVERNIGHT INTO THURSDAY MORNING. THERE IS A MEDIUM CHANCE OF A
DENSE FOG ADVISORY BEING ISSUED OVERNIGHT AS CONFIDENCE IS NOT
HIGH ENOUGH AT THIS TIME FOR ISSUANCE. IF FOG IS REALIZED, IT
SHOULD DISSIPATE SHORTLY AFTER SUNRISE. BE SURE TO USE CAUTION ON
YOUR MORNING COMMUTE!
SHORT TERM
(THURSDAY NIGHT THROUGH SATURDAY)
ISSUED AT 1048 PM CDT WED AUG 26 2026
AS AN UPPER LEVEL RIDGE CONTINUES TO SHIFT EASTWARD INTO THE
TENNESSEE VALLEY, A GRADUAL WARMING PATTERN WILL TAKE PLACE ALONG
WITH MOSTLY DRY POST-FRONTAL CONDITIONS. HIGHS SHOULD REACH
COMFORTABLY INTO THE 90S BY SATURDAY ALONG WITH HEAT INDICES UP
TO 100 DEGREES. AS FAR AS RAIN CHANCES GO, LOW CHANCES (20% OR
LESS) WILL EXIST IN NE AL THURSDAY AFTERNOON AS A RESULT OF THE
BOUNDARY STALLING TO OUR SOUTH. AS THE COLD FRONT SHIFTS
SOUTHEASTWARD INTO OUR AREA THURSDAY NIGHT, A FEW SHOWERS ARE
LIKELY TO ACCOMPANY IT INTO FAR NW AL BEFORE DISSIPATING AS THEY
APPROACH THE TENNESSEE RIVER. STORMS SHOULD REMAIN SUB-SEVERE WITH
LACK OF SHEAR AND RELATIVELY WEAK LAPSE RATES. OUTSIDE OF
THURSDAY, MOSTLY DRY WEATHER REMAINS IN THE SHORT TERM PERIOD.
LONG TERM
(SATURDAY NIGHT THROUGH WEDNESDAY)
ISSUED AT 1048 PM CDT WED AUG 26 2026
THE LONG TERM FORECAST WILL BE LARGELY DOMINATED BY A STRONG UPPER
RIDGE THAT WILL BRING A RELATIVELY DRY BUT HOT AIRMASS TO THE AREA.
HIGHS ON SUNDAY WILL CLIMB TO THE LOW 90S WHILE LARGE SCALE
SUBSIDENCE AND AFTERNOON MIXING HELP KEEP HEAT INDICES NEAR OR BELOW
THE 100 DEGREE MARK. AS THE UPPER RIDGE BUILDS IN AND BECOMES BETTER
AMPLIFIED NEXT WEEK, H85 TEMPS WILL CLIMB TO THE 20-25C RANGE,
TRANSLATING TO SFC TEMPS IN THE MID TO UPPER 90S. THE GOOD NEWS THAT
MAY SUPPRESS A LARGER HEAT WAVE THREAT WILL BE THAT THE DEWPOINT
TEMPS ARE SLIGHTLY LOWER THAN WHAT WE HAVE SEEN IN RECENT EVENTS.
EVEN STILL, AFTERNOON HEAT INDICES WILL RISE TO THE 100-107 DEGREE
RANGE NEXT WEEK AND ANY TRENDS THAT FAVOR A SLIGHTLY MORE MOIST
ENVIRONMENT WOULD WORK TO INCREASE THE RISK FOR DANGEROUS HEAT.
SUMMER IS NOT OVER YET, SO REMEMBER TO PRACTICE AND PLAN FOR
DANGEROUS TEMPS AND VERY HOT OUTDOOR WORKING CONDITIONS. THE LIMITED
MOISTURE AND LACK OF MORE SYNOPTIC SUPPORT FOR THUNDERSTORMS WILL
KEEP POPS CAPPED BELOW 20% THROUGH THE LONG TERM PERIOD.
AVIATION
(00Z TAFS)
ISSUED AT 654 PM CDT WED AUG 26 2026
VFR CONDITIONS HAVE RETURNED AS RAIN EXITS THE AREA AND A
TEMPORARY BREAK FROM THE CLOUD COVER MOVES WEST TO EAST ACROSS
MUCH OF THE TN VALLEY. HIGH ANVIL CLOUDS FROM CONVECTION OVER AR
WILL OVERSPREAD THE AREA LATER THIS EVENING CAUSING LOW CONFIDENCE
ON ANY FOG DEVELOPMENT OVERNIGHT. FOR NOW, WE DID DROP VSBYS TO
MVFR DURING THE EARLY MORNING HOURS AT BOTH TERMINALS TO COVER THE
LOW FOG POTENTIAL.
HUN WATCHES/WARNINGS/ADVISORIES
AL...NONE.
TN...NONE.
NEAR TERM...HC
SHORT TERM....HC
LONG TERM....25
AVIATION...25
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