


Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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276 FXUS64 KHUN 031648 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 1148 AM CDT Sun Aug 3 2025 ...New AVIATION... .NEAR TERM... (Rest of Today and Tonight) Issued at 1033 AM CDT Sun Aug 3 2025 Conditions across the area are supportive of a very mild day for the TN Valley. This is courtesy of a back door cold front draped across the area further supported by CAD just to our east over the Appalachians. ESE flow at the surface will allow the back door cold front to gradually move west and weaken through the day. Locally this will amount to overcast conditions for much of the area, especially east of I-65. With current satellite showing a thick blanket of stratus over the area, we will have a very limited opportunity to destabilize this afternoon. Thus, we will have a low chance for storms with heavy rain being the main threat today. Flooding concerns will continue especially for areas in DeKalb that receive significant rainfall yesterday. With elevated mid levels winds, stationary/slow moving showers are not expected. Rather, it will take training showers to lead to any flooding concerns. With that being said, as the front moves through, our rain chances look to greatly fall off through the afternoon as a layer of dry air in the low levels arrives. The thick stratus is forecast to remain for most of the day for the eastern half of the CWA. This will amount to much cooler than normal temperatures across the area. How much cooler you may ask, well, about 10 degrees! The unique pattern for early August will present an opportunity to tie or set some new minimum max temperatures. The minimum max temperatures for today are 80 at MSL, 83 at DCU, and 81 at HSV. The 12Z HREF indicates a 60-80% chance of remaining below 80 degrees for areas east of I-65 where coverage of showers and stratus is forecast to be highest. && .SHORT TERM... (Monday through Wednesday) Issued at 1033 AM CDT Sun Aug 3 2025 Our current mild pattern present in the near term forecast will extend into the short term. With surface high pressure remaining anchored over the eastern Great Lakes, CAD is set to remain in place through mid week. This will continue to promote ESE flow along this regime leading to increased cloud cover and rain chances for our eastern areas. We will continue to monitor for flooding concerns each day based on previous rainfall received. Under increased cloud cover, our temperature will remain 5-10 degrees below normal for Monday and Tuesday with highs in the upper 70s to low 80s. Temps will warm up slightly on Wednesday into the mid 80s and indicate the start of a slow warming trend to return our temperatures to normal through the remainder of the week. && .LONG TERM... (Wednesday night through Saturday) Issued at 950 PM CDT Sat Aug 2 2025 A troughing pattern controlling our sensible weather into the mid week, will slowly revert back to a ridge dominated regime as we go to the late week. Mean troughing along the eastern third of the CONUS should begin retreating to the north Wed, as upper ridging to our SW reamplifies and shifts somewhat more to the east. This ridge in fact by the latter half of next week should have central 500mb heights at or above 600 decameters on Thursday, indicative of a very hot conditions under it. But towards Sat, more of a closed upper low looks to be forming over the Appalachians, while the ridging retreats somewhat more to the west. This all continues unsettled weather for the mid and latter portion of the week. A continuation of moisture seeping northward from the Gulf will keep mainly afternoon shower and thunderstorm chances each day. After low in the mid/upper 60s Tue night, highs on Wed should rise into the low/mid 80s. A slow warming trend is expected Thu/Fri with highs in the mid/upper 80s, then back into the lower 90s by Sat. && .AVIATION... (18Z TAFS) Issued at 1148 AM CDT Sun Aug 3 2025 MVFR ceilings will likely be in place at both terminals at the start of the period. VFR ceilings are expected at MSL first by mid afternoon and then several hours later near sunset at HSV. VFR conditions will prevail for the duration of the night with an additional low stratus deck bringing in MVFR ceilings just after 12Z tomorrow. Future TAF issuances will refine timing and height of tomorrows MVFR cloud deck. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...RAD SHORT TERM....RAD LONG TERM....RSB AVIATION...RAD