


Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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087 FXUS64 KHUN 170701 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 201 AM CDT Thu Jul 17 2025 ...New NEAR TERM... .NEAR TERM... (Today) Issued at 200 AM CDT Thu Jul 17 2025 Showers and storms fired up along a stalled boundary that stretched from southern TN across NW AL overnight. This caused storms to train and with with high rain rates, caused minor flooding to flash flooding as 1-3" fell with locally higher amounts, by 1 am. The convection has weakened but has only scooted eastward a tad. Will be monitoring for any redevelopment into the early morning hours.The batch of cloud cover associated with the storms will help limit fog development, however if it diminishes, there is still a chance for last minute development before sunrise especially for those that have recently received rainfall. The other weather highlight for today is the heat. Daytime highs will be in the low to mid 90s but the lingering high dewpoints will push us into making it feel more like it`s 100-107 degrees. Therefore, a Heat Advisory is out for today as well until 7pm for NW AL and portions of southern middle TN. Low chance of 20-30% diurnally driven convection is expected this afternoon. A few storms have the potential to become strong, producing gusty winds and heavy rainfall. So stay weather aware and practice sun and heat safety today! For more safety info, visit our webpage and social media pages. && .SHORT TERM... (Thursday night through Saturday) Issued at 1018 PM CDT Wed Jul 16 2025 Convection will wane by the late evening and another very mild night is forecast with lows in the mid 70s once again. Deeper tropical moisture will begin to filer into the region Friday into Saturday as a weak area of low pressure along the northern Gulf pivots into the lower Mississippi Valley. Medium chances for showers and storms (50-60%) are forecast both Friday and Saturday as this feature meander into the Mid South region. Localized heavy rainfall and flooding will be the main concern with this activity given the slow storm motions and deep moisture in place, but gusty winds will also be a concern with the strongest activity. && .LONG TERM... (Saturday night through Wednesday) Issued at 1018 PM CDT Wed Jul 16 2025 A broad area of high pressure will will gradually begin to become established over the Deep South early next week. However, with ample moisture underneath this ridge, low to medium (30-60%) chances for showers and storms will remain in the forecast each day. As we trend toward mid to late week, this ridge will amplify and become more established over the region. Confidence is increasing that another heatwave will begin to develop late in the period as highs in the mid 90s will be common (with some upper 90s more likely in northwest Alabama) by Wednesday. Combined with higher dewpoints, heat indices near above 105 degrees may become more probable. Thus, additional heat products may be needed during this timeframe. && .AVIATION... (06Z TAFS) Issued at 1100 PM CDT Wed Jul 16 2025 VFR conditions will be the predominant flight category at each terminal through the period. However, a cluster of TSRA in northwest Alabama may create localized MVFR conditions through 09z at times at both terminals and have included a TEMPO for this. AWWs and amendments may be needed during this window. Otherwise, VFR conditions with a mostly clear sky and light southerly winds are forecast on Thursday. && .CLIMATE... Issued at 1018 PM CDT Wed Jul 16 2025 Moderate and High Risk for Much Above Normal Temperatures: The Climate Prediction Center has included northwest and portions of north-central Alabama as well as southern middle Tennessee in a High Risk for Much Above Normal Temperatures for July 24th and 25th. Additionally, the CPC has included northeast and portions of north- central Alabama in a Moderate Risk for Much Above Normal Temperatures for July 24th through 30th. Temperatures above 97 degrees F are possible during this period. More information on the CPC U.S. Hazards Outlook can be found at: https://www.cpc.ncep.noaa.gov/products/predictions/threats/threats.php && .HUN WATCHES/WARNINGS/ADVISORIES... AL...Heat Advisory until 7 PM CDT this evening for ALZ001>007-016. TN...Heat Advisory until 7 PM CDT this evening for TNZ076-096. && $$ NEAR TERM...JMS SHORT TERM....AMP LONG TERM....RAD AVIATION...AMP