Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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397 FXUS64 KHUN 281733 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 1233 PM CDT Sun Apr 28 2024 ...New AVIATION... .NEAR TERM... (Rest of Today) Issued at 840 AM CDT Sun Apr 28 2024 With the upper ridge moving over the Carolinas and surface high off the coast of the Carolinas, moisture will be on the increase for the Tennessee Valley due to southerly return flow. Partly cloudy skies will also lead to another day of highs reaching the lower 80s this afternoon. Therefore, it will be a more humid and hot day today. It will be breezy again as well, with sustained winds between 10-15 mph and gusts up to 25 mph. Although, winds are expected to gradually decrease through the late afternoon and into the evening. Overall, no significant changes were needed to the forecast. Enjoy the day! && .SHORT TERM... (Tonight through Tuesday night) Issued at 150 AM CDT Sun Apr 28 2024 Seasonably warm/dry conditions will linger thru tonight, as lows fall mainly into the mid 60s/near 60F. The overall pattern will then begin to change going into the new work week, as the upper ridge axis drifts into the mid/southern Atlantic Basin, while an upper low/trough pattern out of the mid/southern Plains lifts NE. An attendant sfc low will also lift into the upper MS Valley, thereby helping to drag a cold front into the Midwest region. Gulf moisture will spread back into the mid TN Valley Mon, with increasing showers/tstms developing along/ahead of the oncoming front. Relatively high chances for showers/tstms (70-80%) will develop Mon night, as the front drifts closer to the area. The front may then stall just to the NW of the local area on Tue, as the upper trough axis crosses into the region. Low-medium chances for showers/tstms (20-40%) will linger into Tue, before rainfall tapers off Tue night, as drier air above H85 filters into the region out of the WNW. The prob for any stronger storms looks minimal attm, given the lack of any sig low-level convergence coupled with better synoptic forcing diverting more to the north. Seasonably warm temps look to continue Mon/Tue, with highs once again climbing into the upper 70s/lower 80s, while overnight lows trend predom in the mid 50s/lower 60s. && .LONG TERM... (Wednesday through Saturday) Issued at 150 AM CDT Sun Apr 28 2024 Upper ridging will build into the Oh River Valley and northeast along the Atlantic Coast through the second half of the work week, and will keep temperatures on the warm side. Daily highs will reach the mid to upper 80s, with very low (10-20%) chances for diurnal showers/storms each afternoon through Thursday. By Friday, an upper low will pivot from the Central Plains and into the upper Midwest, and a cold front will push east, approaching the MS River Valley. As synoptic lift increases ahead of this front, rain and storm chances will increase to around 40-50% during the day on Friday and into Friday night. Rain chances over the weekend will depend on the strength of the ridge over the Gulf and southern Atlantic coast, which could stall the sfc front just to our south early Saturday before it lifts back north. This would support additional showers and storms through the weekend, so have stuck with blended guidance for PoPs (40-50%) at this range. Temperatures will cool but only slightly Friday and Saturday, with highs near the low 80s. Overnight lows will be in the 60s each night. && .AVIATION... (18Z TAFS) Issued at 1233 PM CDT Sun Apr 28 2024 No rain is anticipated through Monday morning at either of the TAF sites, but clouds have lingered a bit longer into the early afternoon today. Still expect clouds to thin out through this evening, but they will increase once again overnight and into Monday morning. VFR conditions will prevail at both terminals during this time. South to southeasterly winds will remain elevated today, generally around 10-15 knots with gusts up to 20-25 knots possible. Winds may decrease for a brief time late tonight, but they are forecast to pick right back up through Monday morning. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...26 SHORT TERM....09 LONG TERM....25 AVIATION...26