Area Forecast Discussion
Issued by NWS Mobile, AL
Issued by NWS Mobile, AL
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337 FXUS64 KMOB 250528 AFDMOB Area Forecast Discussion National Weather Service Mobile AL 1128 PM CST Sun Nov 24 2024 ...New AVIATION... .AVIATION... (06Z TAFS) Issued at 1128 PM CST Sun Nov 24 2024 VFR conditions prevail across the forecast area tonight into Monday. Locally patchy fog and/or low ceilings may try to develop in spots which could reduce flight category to MVFR or even IFR temporarily through daybreak. After this, ceiling and visibility improve to prevailing VFR. Winds will remain light and variable tonight, becoming prevailing southerly to southwesterly at 5 to 10 knots after daybreak. MM/25 && .PREV DISCUSSION... /issued 526 PM CST Sun Nov 24 2024/ ..New AVIATION... AVIATION... (00Z TAFS) Issued at 526 PM CST Sun Nov 24 2024 VFR conditions this evening will be followed by patchy fog developing over much of the area overnight with IFR conditions possible. VFR conditions are anticipated to prevail on Monday, although MVFR conditions will be possible mainly over portions of the coastal counties with isolated showers. Winds become calm or light and variable this evening, then a southerly to southwesterly flow at 5 to 10 knots develops on Monday. /29 PREV DISCUSSION... /issued 356 PM CST Sun Nov 24 2024/ .New NEAR TERM, SHORT TERM, LONG TERM, MARINE... NEAR TERM... (Now through Tuesday night) Issued at 356 PM CST Sun Nov 24 2024 Today has been a transition day to a more mild pattern in the near term. Upper level zonal flow with low level southerly flow will prevail through Monday. This will result in warmer temperatures and gradually increasingly low level moisture. A weak shortwave embedded in the zonal flow will approach from the west by Monday morning. Hi- res guidance has been consistent in developing isolated showers across coastal AL/NW FL Monday morning into Monday afternoon ahead of the shortwave in a weak warm air advection regime. Given this, introduced a slight chance of rain Monday for those areas. These chances may need to be increased a bit more if model trends continue. The hi-res models are also indicating the potential for patchy fog tonight, especially over inland areas. Some of the guidance indicates it could become locally dense, but this will likely hinge on how extensive cloud cover becomes ahead of the shortwave overnight. For now, will just mention patchy fog in the forecast. Lows tonight will be 15-20 degrees warmer than last night. Highs on Monday will top out in the mid to upper 70s. A stronger high latitude shortwave will move across the upper Midwest and Great Lakes Monday night into Tuesday. This will send a cold front south toward the area, entering the forecast area late Monday night and pushing offshore by late Tuesday afternoon/Tuesday evening. The front will slow down as it nears the coast due it becoming more parallel with the upper flow. Despite the best upper level forcing remaining well north of the area, isolated to scattered showers are likely along and just ahead of the front, with the best rain chances being late Monday night/early Tuesday morning across the far northwestern portions of the forecast area. Rain amounts will be light. With the front south of the coast by Tuesday night, lows will cool down into 40s well inland with low to mid 50s along the I-10 corridor. 34/JFB LONG TERM... (Wednesday through Sunday) Issued at 356 PM CST Sun Nov 24 2024 Winter is coming! The extended is looking rather cold period for the end of November into early December. The first big push of cold air will come on Thursday as a positively tilted trough rips across the Great Lakes Thursday into Thursday night. This system looks rather strung out with the best forcing likely passing off to our north but the area does get clipped by ample height falls and some upper diffluence. As a result some showers and maybe a few thunderstorms will be possible along a crashing cold front Thursday afternoon and into the evening on Thanksgiving. While these systems do not tend to bring severe threats it was interesting to note steepening mid level lapse rates on area model soundings with rather strong vertical wind shear. Would not be shocked to see maybe a marginal severe threat develop along and north of highway 84 if some better forcing and instability can develop but we have several days to keep an eye on this. Luckily this system will be rather progressive and should clear out rather quickly leading to a rather potent arctic air blast. Temperatures will be the talk of the extended more than likely as lows will drop back into the 20s and 30s across most of the area Friday through Sunday. Several re-enforcing shots of cold dry air will be possible heading into early next week and some freeze products may be needed for areas that have not seen a freeze so far this year. BB/03 MARINE... Issued at 356 PM CST Sun Nov 24 2024 No significant impacts are expected through Wednesday. A strong cold front will move through the region Thursday/Thursday night with strong offshore flow developing in the wake of the front. A Small Craft Advisory will likely be needed for late Thursday into Friday. Seas will build to 4-6 ft in the wake of this front over the open Gulf waters. 34/JFB && .PRELIMINARY POINT TEMPS/POPS... Mobile 57 77 62 73 52 75 65 74 / 10 10 20 20 0 0 20 30 Pensacola 62 77 66 76 56 75 67 76 / 10 20 10 20 0 0 20 30 Destin 63 77 67 77 59 76 69 76 / 0 20 10 20 0 0 20 30 Evergreen 49 77 58 70 46 75 61 72 / 0 0 20 20 0 0 20 40 Waynesboro 51 77 56 68 44 75 61 69 / 0 0 40 0 0 0 30 30 Camden 50 75 57 67 42 73 61 68 / 0 0 40 10 0 0 30 40 Crestview 50 79 58 77 50 77 63 78 / 0 20 10 20 0 0 20 40 && .MOB WATCHES/WARNINGS/ADVISORIES... AL...None. FL...None. MS...None. GM...None. && $$ This product is also available on the web at: www.weather.gov/mob