511 FXUS64 KHUN 251857 AFDHUNArea Forecast Discussion National Weather Service Huntsville AL 157 PM CDT Thu Sep 25 2025
...New NEAR TERM...
.NEAR TERM... (Tonight) Issued at 157 PM CDT Thu Sep 25 2025
Cloud cover has finally scattered, finally allowing for some sunshine. This will aid in the development of showers and thunderstorms ahead of the cold front that is slowly sliding eastward today. KGWX shows convection developing and merging into a line in north and central MS at this time just ahead of the front. Instability and low level shear remain weak but there is still a lot of moisture in the atmosphere. Storms will produce moderate to heavy rainfall that can reduce visibility and cause flooding concerns near locations that have received a lot of rainfall in the past few days. If you see water over the roadway, turn around, don`t drown.
Convection will mainly decrease with sunset, but a few showers may linger into the night as the cold front finishes pushing through. Despite cloud cover, with ceilings that could be ~1kft or lower at times late tonight, lows should be able to get into the lower 60s tonight.
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.SHORT TERM... (Friday through Sunday) Issued at 941 AM CDT Thu Sep 25 2025
The air behind the slow moving cold front will only be slightly drier, leaving a good amount of moisture in place. The front will be out of the forecast area tomorrow but close enough to keep a low chance (20-30%) of showers and thunderstorms in the afternoon forecast, with the greatest coverage in NE AL. With lingering cloud cover and PoP chances, highs will be a few degrees cooler in the upper 70s to lower 80s.
This weekend, a better amount of dry air will push into the TN Valley, especially for NW AL over to our central counties. Won`t rule out a shower/storm or two for NE AL Saturday afternoon, otherwise conditions will be dry and cloud cover will lessen through Sunday. Daytime highs will be in the upper 70s to lower 80s once again on Saturday, and with the increase in sunshine and high pressure, it will be warmer, in the low to mid 80s on Sunday.
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.LONG TERM... (Saturday night through Wednesday) Issued at 915 PM CDT Wed Sep 24 2025
Late this weekend into early next week, there is model agreement that an upper level ridge is forecast to creep into the Tennessee Valley from the west. Sfc high pressure will subsequently take over the region, allowing mostly dry conditions through the long term period. Highs during this time are forecast to be in the low to mid 80s with overnight lows in the upper 50s to mid 60s. One thing to watch will be how the tropics unfold to our east by mid week and if we get any additional moisture and resultant rainfall. Overall, however, should be a benign forecast with very low chances for rainfall each day.
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.AVIATION... (18Z TAFS) Issued at 1240 PM CDT Thu Sep 25 2025
Included a VCTS for both terminals as showers and thunderstorms will pop up throughout this afternoon. CIGs are starting to scatter per Visible satellite and obs, however MVFR BKN/OVC skies will be predominant today and most of tonight. If a terminal is directly impacted, erratic wind gusts and heavy rainfall that reduces visibility are possible. Low CIGS will move in late tonight ~05-06Z, creating mainly MVFR CIGS, however models are trending that there could values that reach IFR, especially for KHSV. Confidence too low to include that in this TAF package, but trends will be monitored. Will see those CIGS improve after sunrise when VFR conditions are expected to return.
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.HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. &&
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NEAR TERM...JMS SHORT TERM....JMS LONG TERM....HC AVIATION...JMS
NWS HUN Office Area Forecast Discussion