Area Forecast Discussion
Issued by NWS Mobile, AL

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
794 FXUS64 KMOB 202310 AFDMOB Area Forecast Discussion National Weather Service Mobile AL 609 PM CDT Thu Jun 20 2024 ...New AVIATION... .AVIATION...
-- Changed Discussion --
(00Z TAFS) Issued at 609 PM CDT Thu Jun 20 2024 MVFR conditions are possible with some convection affecting mostly the coastal counties through the early evening hours, but otherwise VFR conditions are expected through Friday. A light northeasterly flow prevails tonight, which increases to near 10 knots on Friday along with a switch to a southeasterly direction near the coast in the afternoon. /29
-- End Changed Discussion --
&& .PREV DISCUSSION...
-- Changed Discussion --
/issued 401 PM CDT Thu Jun 20 2024/ ..New NEAR TERM, SHORT TERM, LONG TERM, MARINE... NEAR TERM... (Now through Friday) Issued at 359 PM CDT Thu Jun 20 2024 An upper level ridge of high pressure continues to retrograde westward across the Tennessee and Mid-Mississippi Valley region this afternoon. Scattered rain showers and isolated thunderstorms have developed across portions of the western FL panhandle and far southwest AL this afternoon along a plume of moisture also advecting westward along the southern periphery of the ridge. We have left a slight chance to chance POPs in the forecast late this afternoon into early this evening, mainly across the southern part of the forecast area before convection diminishes after sunset. Isolated to scattered showers or storms should become focused over the offshore waters late tonight. Low temperatures are forecast to range in the upper 60s to lower 70s over inland locations and generally in the mid to upper 70s along the immediate coast. The upper level ridge of high pressure is expected to build further south and west on Friday and this feature will generally encompass the majority of our forecast area through Friday afternoon. Deep layer subsidence underneath this feature will support keeping the forecast dry across our region Friday. Temperatures will trend hotter, with highs ranging in the lower to mid 90s across the region. Surface dewpoints should mix out into the 60s over most areas Friday afternoon so maximum heat index values should only top out between 95-100 degrees. Coastal hazards: Surf should gradually subside below 5 feet along area beaches by early this evening. We tentatively plan to allow the High Surf Advisory to expire on schedule at 6 PM. A HIGH rip current risk will still continue through Friday night given persistent swell. /21 SHORT TERM... (Friday night through Sunday night) Issued at 359 PM CDT Thu Jun 20 2024 Upper level high pressure centered over the Southeast/Tennessee River Valley shifts west as a mean upper trough develops off/over the East Coast through the period. A weakening surface trough moves northwest over the weekend, bringing Gulf/tropical Atlantic moisture inland over the Southeast. Guidance varies on how fast and far the moisture works in, along with some advertising moister bands working inland Sunday. Have went with a blended approach, with precipitable h20 values rising into the 1.7"-2.0" mainly southeast of I-65 Saturday and area wide on Sunday. Have kept PoPs southeast of I-65 Saturday, transitioning a bit further north Sunday as the better moisture covers more of the forecast area. A seabreeze off the Gulf is indicated to be the initiator. With winds 5k` and above being northwest to northerly, these storms once initiated are not expected to move inland. Subsidence from the upper ridge will keep temperatures above seasonal norms, with high temperatures in the low to mid 90s over most of the forecast area Saturday and Sunday. The increasing moisture levels will combine with the subsidence to bring heat indices rising into the 98-103 degree range Saturday and 100-106 on Sunday. Low temperatures in the upper 60s to low 70s Friday night rise into the low to mid 70s by Sunday night. /16 LONG TERM... (Monday through Thursday) Issued at 359 PM CDT Thu Jun 20 2024 The upper trough off the East Coast shifts west over the eastern Conus, helping to direct shortwave energy over the Southeast. Combined with onshore flow returning to the Southeast increasing moisture levels over 2" over the region, scattered to numerous showers and thunderstorms return to the forecast area mid week. Temperatures fall to near seasonal levels by the end of the week due to the loss of upper subsidence and increased rain cooling. Heat indices continue to rise into the 102 to 107 degree range Monday and 105 to 110 degree range Tuesday. A Heat Advisory will likely be needed early in the week if this trend continues. /16 MARINE... Issued at 359 PM CDT Thu Jun 20 2024 The Small Craft Advisory has been allowed to expire as easterly winds continue to diminish and seas slowly subside. Will leave exercise caution headlines in place well offshore this evening as winds remain sustained between 15-20 knots and seas remain elevated around 6 feet. Winds return to a more southerly to southwesterly flow over the weekend into early next week. /21
-- End Changed Discussion --
&& .PRELIMINARY POINT TEMPS/POPS... Mobile 72 94 71 94 74 94 76 95 / 20 0 0 20 0 20 10 40 Pensacola 75 92 75 92 77 92 79 94 / 20 0 10 30 10 30 20 50 Destin 76 92 78 91 80 90 80 92 / 20 0 20 20 10 30 20 40 Evergreen 68 93 69 95 72 96 74 96 / 10 0 0 20 10 30 10 50 Waynesboro 70 95 68 97 72 98 74 98 / 0 0 0 10 0 10 10 40 Camden 67 92 68 94 72 96 74 96 / 0 0 0 10 0 20 10 40 Crestview 68 94 70 95 72 96 74 97 / 10 0 10 30 10 40 10 50 && .MOB WATCHES/WARNINGS/ADVISORIES...
-- Changed Discussion --
AL...High Rip Current Risk through late Friday night for ALZ265-266. FL...High Rip Current Risk through late Friday night for FLZ202-204- 206. MS...None. GM...None.
-- End Changed Discussion --
&& $$ This product is also available on the web at: www.weather.gov/mob