Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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240 FXUS64 KHUN 261914 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 214 PM CDT Wed Jun 26 2024 ...New NEAR TERM, SHORT TERM... .NEAR TERM... (Tonight) Issued at 215 PM CDT Wed Jun 26 2024 Storms should begin to dissipate shortly after sunset, as we lose daytime heating. Some forcing is possible along convergence boundaries, though without daytime heating, it`ll be tough for storms to ignite. The marginal risk of severe weather from the afternoon should also subside as storms become less organized. However, an isolated strong storm, capable of producing gusty winds, is possible. Some lingering clouds are possible, but skies should be mostly clear. This should help temperatures to drop throughout the night, into the mid-70s across much of the area. Winds should also relax and become more light and variable. && .SHORT TERM... (Thursday through Saturday) Issued at 215 PM CDT Wed Jun 26 2024 The unsettled weather pattern will continue through the duration of the short term forecast. Mid level ridging will build in from the west through the short term reinforcing the presence of mid level dry air. At the surface, the return of southerly flow will advect in higher dew points from the Gulf. With a warm moist environment in place, diurnal showers and thunderstorms will be possible each afternoon. With no appreciable shear present, no organized severe weather is expected. Rather, storms will likely mirror typical pop up summer convection with some storms having a low chance of becoming strong to severe. That being said, any storms that do form will pose a threat for damaging winds and frequent lightning each afternoon. Given the scattered coverage of storms expected, those with outdoor plans this weekend will need to closely monitor weather condition. Aside from rain and storm chances, heat will unfortunately remain a threat through the weekend as well. Both temperatures and dew points will gradually increase through the duration of the short term forecast yielding to a gradual increase in heat index values. The current forecast includes heat index values on Saturday afternoon exceeding heat advisory criteria (105F+) west of I-65. If current forecast trends continue, a heat advisory will likely be needed for at least a portion of the CWA for Saturday and potentially Sunday. Regardless of the exact temperatures or presence of a heat advisory, it is going to be hot for everyone. Make sure to practice proper sun and heat safety through the weekend especially for those partaking in outdoor activities. && .LONG TERM... (Sunday through Tuesday) Issued at 132 AM CDT Wed Jun 26 2024 The general upper level ridge pattern remains unchanged through the long term forecast period. As a result, hot and humid conditions are expected Sunday through Tuesday. Expect afternoon temperatures to rise into the mid 90s both Sunday and Monday, and the upper 90s on Tuesday. The good news is that daily diurnal thunderstorms are expected. This should help limit how hot we get each afternoon. Maximum heat index values once again will be in the upper 90s to lower 100s. && .AVIATION... (18Z TAFS) Issued at 144 PM CDT Wed Jun 26 2024 VFR conditions should persist through most of the day for both KHSV and KMSL until around 20z. At 20z, storms are likely to fire off, especially around KMSL through about 00-04z on Thursday. Visibility will likely lower as storms near or on top on the terminal. After 00z, most storms should begin to dissipate with the loss of daytime heating, with returning VFR conditions likely by this time. For KHSV, VFR conditions are still forecast through the TAF period. However, storms are likely to to be in the vicinity of the terminal between 21z through 01z on Thursday. Storms should begin to dissipate by 01-05z Thursday. In between storms, winds should primarily be out of the SW at about 5kts with some scattered clouds. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...Serre SHORT TERM....RAD LONG TERM....GH AVIATION...Serre