Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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180 FXUS64 KHUN 141055 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 555 AM CDT Fri Jun 14 2024 ...New AVIATION... .NEAR TERM... (Today) Issued at 303 AM CDT Fri Jun 14 2024 Quiet/near seasonal wx conditions prevail across the central TN Valley this early Fri morning, as high pressure remains layered over much of the SE region. Current temps are mainly in the upper 60s/lower 70s and with dew pts predom in the mid/upper 60s, temps should be able to drop a couple of more degrees before the onset of daytime heating. Some light fog is also possible early this morning, although widespread dense fog is not expected to form. Little change in the overall wx pattern is expected today, as the sfc high meanders across the region, while an upper ridge axis over the Plains begins to drift eastward. This should translate into another quiet/seasonably warm day, as highs climb more into the lower/mid 90s, under mostly sunny skies. && .SHORT TERM... (Tonight through Sunday) Issued at 303 AM CDT Fri Jun 14 2024 High pressure will begin to drift more into the Atlantic states tonight into the weekend period, while the upper ridge pattern builds more into the SE states. This should allow for slightly warmer temps this weekend, as highs climb more into the mid 90s Sat and especially Sun, while overnight lows tonight/Sat night trend in the upper 60s/lower 70s. Even with a light return flow pattern developing due to the high pressure moving east, skies look to remain mostly clear/sunny thru the weekend period. A slight increase in dew pts though will allow max heat indices to reach 100F in some spots Sat afternoon. Max heat index readings may then climb more into the 100-103F range later in the day Sun. Light fog also remains possible both early Sat/Sun mornings, although widespread dense fog is not anticipated at this point. && .LONG TERM... (Sunday night through Thursday) Issued at 303 AM CDT Fri Jun 14 2024 Muggy conditions will continue Sunday night with lows only in the low/mid 70s. A deep southerly flow will help return more moisture to the area, with area dewpoints on Monday rising to around 70. This moisture will also result in an increase in cloud cover, which should put a slight damper on very warm to hot conditions that have likely occurred over the weekend. Highs to start the new work week should rise into the lower 90s, with heat index values in the mid/upper 90s. Daytime heating and resultant instability from higher moisture values, will bring lower end (20-30%) chance of showers and thunderstorms to the valley Mon afternoon. Strong upper level high pressure over the region will help warm the mid troposphere, which should help reduce rain chances Mon evening. This strong and warm upper ridging is forecast to amplify over the states north and east of here (Mid Atlantic to New England) in the course of the new week. The 500mb reflection of the upper high has maximum height values near the 600 decameter range Wed/Thu from Pennsylvania to New Hampshire. With lower heights more to the south and west, our daily high temperatures for Tue/Wed/Thu should range mainly in the lower 90s, and lows in the lower 70s. Somewhat lower levels of moisture should result in dry conditions for this timeframe. && .AVIATION... (12Z TAFS) Issued at 555 AM CDT Fri Jun 14 2024 With high pressure remaining layered across much of the region, VFR conds are generally expected thru the TAF period. Light/var winds will also become NW around 5-7kt by early this afternoon. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...09 SHORT TERM....09 LONG TERM....RSB AVIATION...09