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Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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981 FXUS64 KHUN 072349 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 649 PM CDT Sun Jul 7 2024 ...New AVIATION... .NEAR TERM... (Tonight) Issued at 1244 PM CDT Sun Jul 7 2024 Any isolated showers or thunderstorms that manage to develop in our far southern forecast area will dissipate after loss of heating this evening. A ridge of surface high pressure from the eastern Great Lakes through the mid South will further weaken tonight as well. The cloud cover and a slight increase in dew points will keep low temperatures in the lower to middle 70s by Monday morning. && .SHORT TERM... (Monday through Wednesday) Issued at 1244 PM CDT Sun Jul 7 2024 The upper level trough in the northern Plains will shift east into the Great Lakes over the next couple of days, allowing TC Beryl to lift northward through east TX Monday and into the Ozarks by Tuesday. Southerly flow will push very moist low levels northward back into the TN Valley. Given an uncapped atmosphere, this may result in isolated to scattered showers or thunderstorms Monday afternoon and early evening. This chance will be a bit higher on Tuesday as the 8h and 5h ridge axes shift a bit further east. The question mark is the strength and influence of the dry slot that flows northeast as Beryl lifts north into MO. This may effectively shut off shower and thunderstorm chances abruptly, so confidence in PoP is very low, especially Tuesday night into Wednesday. The good news if we do not receive much beneficial rain is a break from highs in the 90s potentially, at least on Wednesday. && .LONG TERM... (Wednesday night through Saturday) Issued at 208 AM CDT Sun Jul 7 2024 The long term period will continue to bring high temperatures in the 90s. However, heat indices are forecast to remain below heat product threshold. A warming trend is in store, however, as temperatures climb into the upper 90s by Saturday. We continue to encourage everyone to stay hydrated, avoid leaving pets or children in unattended vehicles, and avoid being outdoors during the hottest part of the day. Rain chances during this time remain low due to lack of synoptic forcing. && .AVIATION... (00Z TAFS) Issued at 649 PM CDT Sun Jul 7 2024 We will maintain a dry aviation forecast overnight, as convection occurring from western NC southwestward into west-central GA (along a subtle sfc trough/warm front) should dissipate over the course of the evening, as should additional storms currently developing invof a marine warm front across southern MS/AL/GA. However, a bkn-ovc coverage of As/Cs will persist and should limit potential development of BR/FG btwn 8-13Z to locations immediately adjacent to large water sources. Forecast soundings suggest that cloud layers aloft may become thinner tomorrow, permitting stronger insolation and development of a more extensive diurnal Cu field by 16Z. Sustained sfc winds will remain AOB 5 kts for much of the period, with SSW flow transitioning to lgt/vrbl by 6Z. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...17 SHORT TERM...17 LONG TERM...HC AVIATION...70/DD