727 FXUS64 KHUN 051100 AFDHUNArea Forecast Discussion National Weather Service Huntsville AL 600 AM CDT Sun Oct 5 2025
...New AVIATION...
.NEAR TERM... (Today) Issued at 400 AM CDT Sun Oct 5 2025
Current temperatures across north Alabama and southern middle Tennessee are mainly in the mid to upper 60s at present. Not anticipating temperatures to cool much more through this morning, as dew points are in the lower 60s for most locations. Clouds also continue to stream over a portion of our local area early this morning as a northeastward extension of the clouds from shower and storm activity over the north-central Gulf coast. This, in addition to winds between 5-10 mph, have kept any fog development at bay and will continue to do so through this morning. Thus, the forecast remains on track with no major changes needed.
Previous Discussion:
A troughing west and ridging east upper pattern continued over the greater CONUS. Even with upper ridging in place over the east coast, a weak upper level low spinning south of AL/FL was spreading clouds over parts of the SE states, with a few showers (mainly over the Gulf of America). More inland from the Gulf coast (say Birmingham and northward), it was too dry in the low/mid troposphere to support shower activity at this time. This could change later today, as more of this moisture seeps further inland. A weak area of low pressure trying to form south of the TX/LA coast should remain over that portion of the Gulf into late tonight. A return of more high altitude moisture will make for partly cloudy skies this afternoon. High temperatures should rise into the low/mid 80s, with SE winds of 5-15 mph in the afternoon.
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.SHORT TERM... (Sunday night through Tuesday) Issued at 1038 PM CDT Sat Oct 4 2025
Shower activity along the Gulf coast on Sunday should slowly creep inland Sunday night into Monday. The models for the most part were suggesting that lower end chances of showers returns sometime late Sunday into Monday. Output from the NAM and FV3 were rather skimpy with rain coverage. The new NBM run has kept similar coverage regarding rain chances late Sunday into Tuesday.
Temperature forecasts...rather mild night time conditions are expected Sunday and Monday night, with lows in the low/mid 60s. Despite cloud coverage and rain chances, high temperatures on Monday should rise into the upper 70s to lower 80s, and into the low/mid 80s Tuesday. These values may be a bit lower if chances of shower coverage becomes greater.
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.LONG TERM... (Tuesday night through Saturday) Issued at 1038 PM CDT Sat Oct 4 2025
Upper level ridging now over the coastal Mid Atlantic will slowly build to the SW during the early portion of next week. Troughing that was producing unsettled weather over parts of the northern Rockies should also weaken and move Ontario/Quebec by the mid week. This will essentially bring a more zonal upper flow pattern across much of the Lower-48 towards the middle of next week.
A cold front will be approaching the area from the NW late Tuesday, and move across the Tennessee Valley on Wednesday. With more clouds and low rain chances (20-30%), highs temperatures for the mid week should be a tad cooler into the upper 70s and lower 80s. A bit cooler Wed night with lows in the upper 50 and lower 60s. An airmass change will make for slightly cooler conditions for the second half of next week, with highs in the mid 70s to around 80, and lows in the mid 50s to lower 60s.
Limited lower level moisture return before the front moves across the region, will help keep rain chances and amounts on the low side. For the Thu-Sat timeframe, spotty rain chances should continue Thursday, with Fri/Sat trending dry and worsen the on- going drought.
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.AVIATION... (12Z TAFS) Issued at 600 AM CDT Sun Oct 5 2025
VFR conditions will continue through tonight. The main concern will be increasing easterly winds this morning into early this afternoon that will persist through much of tonight. Sustained winds around 10 knots are forecast, with gusts to around 15-22 knots. Additionally, guidance indicates that LLWS will be another concern around 4-5Z tonight at both terminals but should diminish through 9-10Z. Outside of these concerns, mid to upper level cloud cover is expected to gradually increase through the day and particularly later tonight. Rain chances also increase early Monday morning from the west. At this point, have left this out of the TAFs as it is at the end of the forecast period; however, this will be reassessed for inclusion into at least the MSL TAF with subsequent updates.
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.HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. &&
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NEAR TERM...26 SHORT TERM....RSB LONG TERM....RSB AVIATION...26
NWS HUN Office Area Forecast Discussion