FXUS64 KMOB 260504 AAC AFDMOB Area Forecast Discussion...UPDATED National Weather Service Mobile AL 1204 AM CDT Sun May 26 2019 .DISCUSSION...Updated for latest aviation discussion below. && .AVIATION... 06Z issuance...VFR conditions will continue through the forecast. South-southeast winds at 5 to 10 knots will continue as well. BB/03 && .PREV DISCUSSION... /issued 615 PM CDT Sat May 25 2019/ DISCUSSION...Updated for latest aviation discussion below. AVIATION... 00Z issuance...VFR conditions will continue through the night tonight. Light and variable winds. BB/03 PREV DISCUSSION... /issued 358 PM CDT Sat May 25 2019/ CONTINUED VERY HOT CONDITIONS WILL CONTINUE WITH AFTERNOON HEAT INDICES IN THE 100 TO 104 DEGREE RANGE SUNDAY AFTERNOON... NEAR TERM /Now Through Sunday/...High pressure, both surface and aloft continues over the forecast area through Sunday, with dry and hot conditions continuing. A light wind across the area this afternoon, still somewhat variable over interior areas but south to southeast near the coast will become light and variable across the entire area overnight. A light onshore flow is then expected once again during the day on Sunday. A surface ridge of high pressure will remain across the southeast Conus and northeastern Gulf of Mexico while a strong 500mb high pressure system remains entrenched across the area as well, maintaining the large scale subsidence and dry weather pattern across the region. Guidance not overly aggressive with overnight fog potential, although some indications of patchy mainly light fog over some western counties late tonight. This was noted by previous shift and see no changes in that regard. Primary concern for the near term will continue to be the very hot temperatures for this time of the year. Temperatures have approached record highs today, and near record high temperatures are once again expected on Sunday. Highs on Sunday will approach 10 degrees above normal for this time of the year at many locations, generally reaching the mid to upper 90s over most of the interior (with a few locations, especially east of the I-65 corridor in south central AL and north of I-10 in the western FL panhandle possibly, hitting the century mark). A little cooler along the coast, generally in the upper 80s to lower 90s during the afternoon hours on Sunday, although a few locations may warm to the mid 90s before the sea breeze moves inland during the afternoon. Heat indices will be a little higher on Sunday than they were on Saturday, with HI's in the the areas noted above with the higher actual temperatures reaching the 100-104 degree range (a few locations possibly a degree or two higher). Actual highs and heat indices are a little below Heat Advisory criteria, but hot weather practices and precautions should be observed. As we have previously stated, keep in mind the heat index value can be increased by 15 degrees Fahrenheit and heat indices meeting or exceeding 103 can lead to dangerous heat disorders with prolonged exposure and/or physical activity in the heat. Please consider this if planning any outdoor activities. Stay hydrated and take frequent breaks in the shade to avoid overexposure to the heat. Very warm and muggy conditions expected tonight, with overnight lows dropping into the upper 60s to low 70s inland, mid to upper 70s along the immediate coast. In addition to the heat, a Moderate Risk of dangerous rip currents along area beaches now continues through Sunday. 12/DS SHORT TERM /Sunday night Through Tuesday night/...A strong deep layer ridge will remain over the area through mid week. Strong subsidence under the ridge will maintain dry and hot conditions. Highs will generally be in the mid and upper 90s with a few spots around 100. Coastal locations will be in the low to mid 90s. Heat index values will generally be in the 100 to 103 range. /13 LONG TERM /Wednesday Through Saturday/...The upper ridge will weaken on Thursday and shift eastward. This will allow a weak front to move into the southeast. Meanwhile, deep layer moisture levels will increase on the backside of the ridge. As upper ridging weakens late in the week and the front approaches, temps will return to closer to normal levels and also allow rain chances to return to the area. /13 MARINE...High pressure remains centered over the marine area through early next week. Aside from a light to occasionally moderate onshore flow developing with the seabreeze each day, winds will remain light through early next week. By midweek, the onshore flow increases slightly as the high pressure center begins to shift east and the onshore flow becomes better developed. The persistent onshore flow keeps wave heights slightly elevated tonight through Tuesday (up to around 2 feet), with a slight building of seas mid to late week (up to 3 to 4 feet well offshore) as flow increases slightly. 12/DS && .MOB WATCHES/WARNINGS/ADVISORIES... AL...High Rip Current Risk through Sunday evening for ALZ265-266. FL...High Rip Current Risk through Sunday evening for FLZ202-204-206. MS...None. GM...None. && $$ This product is also available on the web at: http://weather.gov/mob