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Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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956 FXUS64 KHUN 111105 AAA AFDHUN Area Forecast Discussion...UPDATED National Weather Service Huntsville AL 605 AM CDT Sun Aug 11 2024 ...New AVIATION... .NEAR TERM... (Today) Issued at 245 AM CDT Sun Aug 11 2024 Zonal flow aloft, along with surface high pressure, will keep another day of no rain chances and nice weather in the forecast. Dew points are expected to dip into the 50s today, with highs topping out in the mid to upper 80s. Some spots over far northeast Alabama and into southern middle Tennessee may see cooler high temperatures, in the lower 80s. Overall, no impactful weather of note and it`ll be a nice day to end the weekend. Enjoy! && .SHORT TERM... (Tonight through Tuesday Night) Issued at 245 AM CDT Sun Aug 11 2024 After a couple days of pleasant and dry weather, a pattern change is on the way. Northwest flow will develop aloft as an upper ridge nudges eastward over the ArkLaMiss region through Tuesday. Surface high pressure will maintain its hold until a surface front, associated with a low pressure system over the central Plains, moves northeast over the ArkLaMiss on Tuesday and towards the Tennessee Valley through midweek. Overall, expect a warming trend through Tuesday and more muggy conditions by Tuesday night, with low shower and storm chances (10-20%) returning to the region Tuesday night as well. High temperatures in the mid 80s to around 90 degrees are forecast on Monday but will warm into the lower 90s for most locations on Tuesday. Lows will follow a similar pattern, beginning in the lower to mid 60s tonight and increasing into upper 60s to lower 70s Tuesday night. && .LONG TERM... (Wednesday through Saturday) Issued at 245 AM CDT Sun Aug 11 2024 Some good news for the long term period is that the forecast has trended slightly cooler, and it looks less likely that Heat Advisory conditions will be met during the mid to late week timeframe. By Wednesday, a weak upper wave will track across the Tennessee Valley and into the Deep South with an upper level high situated just to our west. This will lead to an increase in tropical moisture, resulting in more cloud cover and a low chance (20-30%) for showers/storms during the afternoon. This will help keep highs limited to the upper 80s/lower 90s and although sfc dewpoints climb into the 70s, afternoon heat indices should stay below the 100 degree mark. Northwest flow will continue to keep low to medium chances (20-40%) for showers/storms in the forecast through Saturday, with daily highs in the upper 80s/lower 90s. As dewpoints increase late in the week, heat indices may exceed the 100 degree mark, but for low look to top below Heat Advisory criteria of 105 degrees. This will be something to watch in future updates, as even small shifts in the position of the upper ridge could increase the potential for dangerous heat or stronger thunderstorm activity. Overnight lows will be near the low to mid 70s each night. && .AVIATION... (12Z TAFS) Issued at 605 AM CDT Sun Aug 11 2024 VFR conditions will prevail through tonight, with no rain forecast. Northerly winds between 5-10 knots today will decrease to around 5 knots or less this evening. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...26 SHORT TERM....26 LONG TERM....25 AVIATION...26