901  
FXUS64 KHUN 310142  
AFDHUN  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE HUNTSVILLE AL  
842 PM CDT SAT AUG 30 2025  
   
..NEW NEAR TERM, SHORT TERM, LONG TERM  
 
   
NEAR TERM  
 
(REST OF TONIGHT AND SUNDAY)  
ISSUED AT 842 PM CDT SAT AUG 30 2025  
 
HIGH PRESSURE WILL REMAIN ANCHORED FOR ANOTHER NIGHT. WITH THE  
DRY AIRMASS IN PLACE, COMBINED WITH LIGHT/VARIABLE WINDS ALONG  
WITH MOSTLY CLEAR SKIES, RADIATIONAL COOLING WILL ALLOW TEMPS TO  
DROP INTO THE UPPER 50S TO LOWER 60S. A LOW CHANCE FOR PATCHY FOG  
EXISTS OVERNIGHT, BUT NOT EXPECTING IT TO BE IMPACTFUL. THESE  
TEMPS ARE MORE REPRESENTATIVE OF MID/LATE SEPTEMBER, SO ENJOY!  
 
HIGH PRESSURE WILL REMAIN IN PLACE THROUGH THE WEEKEND, HOWEVER A  
SHORTWAVE WILL DEVELOP TO OUR NORTHEAST AND SEND IN SOME  
ADDITIONAL CLOUD COVER. THERE WILL BE ENOUGH SUNSHINE THROUGH  
THOSE PARTLY CLOUDY SKIES TO HELP TEMPS REACH THE LOWER 80S (NE  
AL) TO THE UPPER 80S (ELSEWHERE).  
 
 
   
SHORT TERM  
 
(SUNDAY NIGHT THROUGH TUESDAY)  
ISSUED AT 842 PM CDT SAT AUG 30 2025  
 
A PATTERN CHANGE IS ON THE WAY NEXT WEEK, BRINGING THOSE PICTURE  
PERFECT FALL TYPE DAYS TO AN END. WE WILL STILL HAVE COOLER TEMPS,  
BUT AT THE COST OF HAVING SHOWERS AND THUNDERSTORMS RETURN. THE  
PREVIOUSLY MENTIONED SHORTWAVE WILL CREATE A WEDGE ON MONDAY THAT  
WILL BUILD INTO NE AL. THIS WILL LIFT A STALLED BOUNDARY THAT IS  
CURRENTLY SOUTH OF THE FORECAST AREA, NORTHWARD AND RETURN A LOW  
CHANCE (20-30%) OF SHOWERS AND THUNDERSTORMS. THIS BOUNDARY IS  
EXPECTED TO PUSH NORTHWARD THROUGH THE TN VALLEY, ALLOWING FOR  
GULF MOISTURE TO RETURN BEHIND IT.  
 
FROM THE OTHER DIRECTION, A SHORTWAVE WILL SLIDE SOUTHEAST  
THROUGH THE MIDWEST, ACROSS THE MID MS VALLEY AND INTO THE TN  
VALLEY BY TUESDAY. SHOWER AND THUNDERSTORM CHANCES WILL INCREASE  
TO 20-40%. PWATS WILL INCREASE UP TO 1.5" BY TUESDAY BUT SHEAR AND  
STEERING FLOW IS EXPECTED TO BE WEAK BOTH MONDAY AND TUESDAY. AT  
THIS TIME, MAIN HAZARDS WITHIN ANY STRONGER STORM WOULD BE GUSTY  
WINDS AND LOCALLY HEAVY RAINFALL.  
 
THE INCREASE IN CLOUD COVER AND RAIN CHANCES WILL SLIDE THE  
DAYTIME HIGHS FROM THE LOWER TO UPPER 80S ON MONDAY, TO THE UPPER  
70S TO MID 80S ON TUESDAY. LOWS SHOULD REMAIN IN THE 60S.  
 
 
   
LONG TERM  
 
(WEDNESDAY THROUGH SATURDAY)  
ISSUED AT 842 PM CDT SAT AUG 30 2025  
 
BY MID WEEK, A LOW PRESSURE SYSTEM IS FORECAST TO PUSH SOUTHWARD  
INTO THE GREAT LAKES REGION- BRINGING THE SHORTWAVE SOUTHEASTWARD  
INTO THE OHIO RIVER AND NORTHERN TENNESSEE VALLEYS. A SUBSEQUENT  
COLD FRONT IS FORECAST TO FORM AND PUSH SOUTHEASTWARD BY THURSDAY.  
THERE CONTINUES TO BE SLIGHT DISAGREEMENT ON THE EVENTUAL  
PLACEMENT OF THE AFOREMENTIONED SHORTWAVE AND ADJACENT COLD FRONT,  
HOWEVER, TRENDS CONTINUE TO POINT TOWARDS THE FEATURE REMAINING  
NORTH OF OUR CWA (PRIMARILY IN MIDDLE TENNESSEE). THEREFORE,  
CONTINUED WITH BLENDED GUIDANCE OF LOW TO MEDIUM CHANCES OF  
SHOWERS/THUNDERSTORMS WEDNESDAY THROUGH THURSDAY. THE LREF SHOWS  
LIMITED CAPE (~300-500 J/KG) WITH RELATIVELY WEAK SHEAR AND  
UNIMPRESSIVE LOW LEVEL LAPSE RATES (~6 C/KM) WEDNESDAY EVENING. WE  
WILL CONTINUE TO MONITOR THIS TREND AS WE PUSH INTO EARLY NEXT  
WEEK. POST-FRONTAL CONDITIONS ARE FORECAST TO BE COOLER AND DRY  
WITH DEW POINTS DROPPING INTO THE LOW 50S BY THE WEEKEND.  
 
 
   
AVIATION  
 
(00Z TAFS)  
ISSUED AT 557 PM CDT SAT AUG 30 2025  
 
VFR CONDITIONS WILL PREVAIL AT KHSV AND KMSL THROUGH THE FORECAST  
PERIOD. THERE IS A LOW CHANCE FOR GROUND FOG EARLY SUNDAY MORNING,  
BUT COVERAGE IS NOT EXPECTED TO BE IMPACTFUL.  
 
 
   
HUN WATCHES/WARNINGS/ADVISORIES  
 
AL...NONE.  
TN...NONE.  
 
 
 
 
NEAR TERM...JMS  
SHORT TERM....JMS  
LONG TERM....HC  
AVIATION...JMS  
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