140
FXUS64 KHUN 181046
AFDHUN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
546 AM CDT SUN OCT 18 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 304 AM CDT SUN OCT 18 2026
- COOLER TEMPERATURES WILL PERSIST THROUGH TONIGHT, BEFORE A
WARMING TREND TAKES SHAPE EARLY TO MID WEEK.
- PATCHY FROST MAY OCCUR EARLY THIS MORNING AND EARLY MONDAY
MORNING IN A FEW WIND-SHELTERED LOCATIONS ACROSS SOUTHERN TN
AND NORTHEAST AL.
NEAR TERM
(TODAY)
ISSUED AT 304 AM CDT SUN OCT 18 2026
CLEAR/CALM CONDITIONS ARE RESULTING IN A COOL, CRISP EARLY AUTUMN
MORNING ACROSS THE TENNESSEE VALLEY, WITH 09Z TEMPERATURES IN THE
MID 40S IN MOST LOCATIONS. WITH HIGH PRESSURE BUILDING INTO THE
REGION TODAY, THE MOSTLY SUNNY, CLEAR, AND CALM CONDITIONS WILL
CONTINUE. AMPLE SUNSHINE WILL ALLOW TEMPERATURES TO CLIMB INTO THE
MID TO UPPER 60S IN MOST LOCATIONS BY THIS AFTERNOON. HOWEVER,
LIGHT NORTHERLY WINDS WILL CONTINUE TO REINFORCE THIS COOLER AIR
MASS.
SHORT TERM
(SUNDAY NIGHT THROUGH TUESDAY)
ISSUED AT 1056 PM CDT SAT OCT 17 2026
WHILE THE UPPER AIR PATTERN WON'T CHANGE SIGNIFICANTLY DURING THE
SHORT TERM PERIOD, UPPER RIDGING WILL CENTER MORE OVER THE EASTERN
CONUS AND WILL BRING WARMING TEMPERATURES TO THE TENNESSEE VALLEY.
THE GOOD NEWS IS THAT WITHOUT THE MOISTURE ADVECTION FROM THE
GULF, THE HEAT WILL FEEL A LOT LESS OPPRESSIVE WITHOUT THE
HUMIDITY WE HAVE SEEN IN RECENT WEEKS. AFTERNOON HIGHS WILL RISE
INTO THE LOW/MID 70S MONDAY AND THEN INTO THE MID/UPPER 70S ON
TUESDAY. CLEAR SKIES AND LIGHT WINDS WILL ALLOW FOR GOOD
RADIATIONAL COOLING, ALLOWING FOR OVERNIGHT LOWS IN THE UPPER 30S
TO MID 40S.
LONG TERM
(TUESDAY NIGHT THROUGH SATURDAY)
ISSUED AT 1056 PM CDT SAT OCT 17 2026
UPPER LEVEL RIDGING WILL PERSIST OVER THE SOUTHEAST TO BEGIN THE
LONG TERM PERIOD; HOWEVER, SYNOPTIC GUIDANCE SUGGESTS THAT THE UPPER
TROUGH OVER THE EASTERN SEABOARD WILL AMPLIFY BY LATE WEEK AND
ATTEMPT TO PUSH WESTWARD INTO THE SOUTH. ALTHOUGH, UNCERTAINTY
REMAINS IF THIS FEATURE WILL PUSH FAR ENOUGH WEST TO HAVE MUCH OF AN
EFFECT ON THE LOCAL AREA. THIS IS DUE TO THE STOUT RIDGE OVER THE
CENTRAL CONUS THAT LOOKS TO BE PUSHED EASTWARD OVER OUR REGION FRIDAY
INTO SATURDAY BY A PROGRESSIVE TROUGH OVER THE WESTERN CONUS.
MEANWHILE, SURFACE HIGH PRESSURE LOOKS TO LARGELY MAINTAIN ITS HOLD
OVER MUCH OF THE EASTERN CONUS THROUGH THE FIRST PART OF NEXT
WEEKEND. OVERALL, WITH CONTINUED SUBSIDENCE FROM SURFACE HIGH
PRESSURE AND PROXIMITY OF UPPER RIDGING, THE CURRENT FORECAST REMAINS
DEVOID OF RAIN CHANCES THROUGH AT LEAST EARLY NEXT WEEKEND. IN
ADDITION, THE FALL-LIKE WEATHER CONTINUES WITH FORECAST HIGHS IN THE
MID TO UPPER 70S AND LOWS MAINLY IN THE MID TO UPPER 40S.
AVIATION
(12Z TAFS)
ISSUED AT 546 AM CDT SUN OCT 18 2026
VFR CONDITIONS WILL PREVAIL THROUGH THE PERIOD WITH LIGHT NNE
WINDS AND A MOSTLY CLEAR SKY.
HUN WATCHES/WARNINGS/ADVISORIES
AL...NONE.
TN...NONE.
NEAR TERM...AMP
SHORT TERM....25
LONG TERM....26
AVIATION...AMP.24
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