Area Forecast Discussion (AFD)
Issued by Huntsville, AL (HUN)
000 FXUS64 KHUN 201932 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 232 PM CDT Fri Sep 20 2019 .NEAR TERM...(Tonight) Issued at 225 PM CDT Fri Sep 20 2019 Temperatures have climbed into the upper 80s in the normal hot spots such as the Huntsville International Airport and the Muscle Shoals Regional Airport. Could see the Quad-cities area still reach 90 degrees. A very dry airmass remains in place with dewpoints in the lower to mid 50s in most locations. Winds are primarily between 5 and 10 mph. However, there are a few gusts to between 15 and 20 mph still occurring. These winds should diminish this evening to around 5 mph. Sheltered valley locations could be light and variable. Despite clear skies, the airmass looks too dry even for some isolated fog development. Tweaked lows slightly lower into the mid 50s to around 60 degrees in many locations. The exceptions should be where warmer highs were reached this afternoon and near the AL/MS border, where lows could only drop into the lower 60s. .SHORT TERM...(Saturday through Sunday) Issued at 225 PM CDT Fri Sep 20 2019 Not much change in the forecast over the weekend, as high pressure remains entrenched over Alabama and Georgia as a cold front approaches the area from the northwest. Slightly more moist air is slowly advected into the region ahead of it this weekend. Highs should be slightly higher reaching the upper 80s to lower 90s across northern Alabama and southern Tennessee. Lows should slowly climb into the upper 50s to mid 60s. .LONG TERM...(Sunday night through Thursday) Issued at 225 PM CDT Fri Sep 20 2019 These trends will continue into Sunday night. There continues to be uncertainty how much rainfall will occur as this front tries to push south into northern Alabama on Monday. Fairly high relative humidity values around 850 mb and weak lift should provide some mostly cloudy conditions and should keep highs around 90 or 91 degrees. Then high pressure builds back over the area behind the front Tuesday. There may be another very low chance of showers or thunderstorms on Wednesday if this front moves back to the northeast over the area. At this point, only including a 20 percent chance of showers and thunderstorms. Highs should remain in the lower 90s primarily through Wednesday. However, models do suggest another mini-heat wave may develop during the end of the week as the upper ridge builds significantly over the area. For now guidance is only showing highs in the lower 90s. However, 925 mb temperatures hint we may be back in the mid 90s Thursday and Friday of next week. && .AVIATION...(For the 18Z TAFS through 18Z Saturday afternoon) Issued at 1214 AM CDT Fri Sep 20 2019 VFR conditions are expected throughout the TAF period. Southeast winds around 10 knots with gusts to around 16 knots will become light this evening and overnight. No fog formation is expected. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && $$ NEAR TERM...KTW SHORT TERM...KTW LONG TERM...KTW AVIATION...KTW For more information please visit our website at weather.gov/huntsville.