Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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344 FXUS64 KBMX 201723 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 1223 PM CDT Sat Jul 20 2024 ...New AVIATION... .SHORT TERM... (Today through Sunday) Issued at 350 AM CDT SAT JUL 20 2024 This AM, a stationary surface front is stretched from SW to NE from SW LA to NE MS across portions of NRN AL and NEWD to E KY. This boundary will nudge a bit further to the N this morning leaving C AL on the warm/moist side of the front. In the upper levels, there is a tight low over ERN Canada. However, the gradient is rather loose over the ERN US as the base of the trough turns a bit more SW TWD TX with ridging pinching in from the WRN Atlantic and weak onshore flow on the Gulf Coast near the base of the trough and weak flow over FL. In the lower levels, we have a moist SRLY fetch to feed any perturbation interactions moving around the upper trough base. Look for continued waves of convection. Overall onshore flow increases further for Sunday. Temperatures may be a degree or so warmer today in spots, but are overall similar with little changes expected for Sunday...off and on rain waves and repeat. 08 && .LONG TERM... (Sunday night through next Friday) Issued at 341 AM CDT SAT JUL 20 2024 Very little change is expected in the overall pattern for much of the upcoming week. The persistent trough through the Central US will remain in place leading to at least some upper level forcing and moisture transport across the region. This will lead to slightly more active diurnal thunderstorm activity each day Monday through Friday. High temperatures will be moderated somewhat, limited to the 80s to low 90s each day depending on exact timing and placement of thunderstorms. 25/Owen && .AVIATION... (18Z TAFS) Issued at 1223 PM CDT SAT JUL 20 2024 An unsettled pattern will persist through this forecast cycle with scattered to numerous showers and some thunderstorm activity this afternoon and evening. Thunderstorm potential will be best near MGM through mid afternoon with much of the activity expected across the southeast half of the area. Lower chances for showers and a few storms will persist across the rest of the area through the afternoon and into early evening. Overnight, expect best chances for lingering showers and a few storms across the east and southeast portions of the area. Some patchy fog may develop across portions of the north and east portion of the area before sunrise Sunday, followed by increased chances for showers and storms areawide toward the end of this forecast period. 05 && .FIRE WEATHER... A rainy pattern is expected to continue through the weekend and into the early part of next week. Generally light winds expected aside from thunderstorm wind gusts. The humid airmass will keep minimum relative humidity values in the 60 to 80 percent range. Fog development is possible each night, especially in areas that saw rain during the day. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 70 84 70 85 / 60 70 50 60 Anniston 70 83 71 85 / 70 70 60 60 Birmingham 72 84 72 85 / 60 70 50 60 Tuscaloosa 72 87 72 87 / 60 70 40 60 Calera 70 84 72 86 / 70 70 50 60 Auburn 70 83 72 85 / 70 70 50 60 Montgomery 72 86 72 87 / 70 70 50 60 Troy 71 87 72 87 / 60 70 40 60 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...08 LONG TERM....25 AVIATION...05