Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
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395 FXUS64 KHGX 250355 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 1055 PM CDT Mon Jun 24 2024 ...New AVIATION... .SHORT TERM... (This evening through Tuesday Night) Issued at 332 PM CDT Mon Jun 24 2024 Showers will continue moving inland from the Gulf of Mexico this afternoon, courtesy of the influx of moisture and a weak cap. The synoptic pattern remains unchanged with an area of high pressure continuing to sit overtop the state. This will continue to lead to increasing daytime temperatures. While we managed to loom just below the Advisory criteria today with regards to heat...that is not looking like it will be the case for Tuesday. With the 500mb temperatures continuing to reach above the 90th percentile per NAEFS/GFS, not expecting to see this high pressure weaken in the short-term period. Daytime highs for Tuesday will be in the 90s inland and in the upper 80s along the coast. With elevated dew points in the 70s to around 80 degrees, heat index values will be in the 108-112 range for a good portion of SE Texas. A Heat Advisory will likely be needed for most, if not all inland areas on Tuesday (interests along the coast should remain below criteria). Nighttime temperatures will not provide much relief...while heat index values will relax, it will still feel very warm and muggy. Temperatures tonight and Tuesday night will be in the 70s to low 80s. With heat as the headline for the short-term, please remember to practice heat safety. Avoid strenuous activity during the hottest time of the day, stay hydrated, LOOK BEFORE YOU LOCK, and remember that if it is too hot for the palm of your hand...it is too hot for your pets` paws. Stay safe! && .LONG TERM... (Wednesday through next Sunday) Issued at 332 PM CDT Mon Jun 24 2024 The prominent ridge over the Southern CONUS begins to weaken by 00Z Wednesday, shifting to be more focused over the Four Corners region. This will allow a trough to dig down to our east, bringing a shortwave by early morning Thursday. While the most widespread impacts seem to be localized over Louisiana, the positive vorticity advection may have a small increase in local precipitation chances from diurnal showers and thunderstorms throughout Thursday and Friday. The precipitation totals for these should be small, perhaps some heavier rain in localized thunderstorms, but overall the totals should not exceed 0.1 inches. Despite the weakening of this ridge, the temperature remains high for the next few days. Expect highs in the 90s, closer to the low 90s for regions near the coast, with mid to upper 90s further inland. Maximum heat indices will remain in the triple digits, with it being possible later in the week that a Heat Advisory may need to be issued. Low temperatures will be in the upper 70s across the region, with low 80s being possible towards the coast. High relative humidity in our area will contribute to the heat index temperatures, and the higher minimum temperatures may not provide much relief overnight. Ensure that you are consuming plenty of water and avoiding strenuous activity during the hottest parts of the day if possible. Check in on your pets and family members as the heat worsens. Ellis/Cady && .AVIATION... (06Z TAF Issuance) Issued at 1055 PM CDT Mon Jun 24 2024 VFR conditions will continue through the early morning hours. Around 10Z, MVFR ceilings are expected to develop CXO and northward and prevail through around 16Z before dissipating. Southeasterly to southerly winds around 10 knots will prevail throughout the day. Some isolated showers are expected to develop (mainly west of I-45) during the afternoon hours, but coverage still looks to be too sparse to add in VCSH to any of the TAFs at this time. Batiste && .MARINE... Issued at 332 PM CDT Mon Jun 24 2024 Seas will remain on a diminishing trend into tomorrow, reaching around 2 feet. Light to moderate onshore winds will prevail through the duration of the week, generally remaining below advisory thresholds. Some isolated coastal flooding is possible along the Bolivar Peninsula. There will be a daily risk of isolated showers and thunderstorms every day through the weekend. Cady/Ellis && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 77 94 77 96 / 0 0 0 10 Houston (IAH) 78 94 77 96 / 0 10 0 30 Galveston (GLS) 82 88 82 90 / 0 10 0 20 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...Heat Advisory from noon to 8 PM CDT Tuesday for TXZ163-164- 176>179-195>200-210>213-226-227. GM...None. && $$ SHORT TERM...Adams LONG TERM....Ellis AVIATION...Batiste MARINE...Cady