Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
431 FXUS64 KHGX 240458 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 1158 PM CDT Mon Jun 23 2025 ...New DISCUSSION, MARINE... .KEY MESSAGES... Issued at 1117 PM CDT Mon Jun 23 2025 -Scattered showers and thunderstorms possible each day -Highest chance of showers and thunderstorms will be today and Wednesday -Temperatures continue to run just above seasonable normals && .DISCUSSION... Issued at 1117 PM CDT Mon Jun 23 2025 A few light showers continuing along the immediate coast and the Gulf Waters at this hour. Expect this pattern to continue overnight with an uptick in activity expected Tuesday morning. Most of the activity should occur along and south of the I-10 corridor during the morning hours before expanding north during the afternoon/evening hours. As is typical for this time of year, some storms have the potential to become stronger and could produce gusty winds, brief heavy downpours, and small hail. Heavy downpours could result in ponding along roadways. Rain chances decrease Tuesday night with the loss of daytime heating. Expect that pattern to continue Wednesday and Wednesday night before a slightly drier airmass moves in place Thursday into Friday. This will result in isolated showers and thunderstorms for both days (highest chances will be in the afternoon with daytime heating and the sea/bay breeze). Another reinforcement of moisture will send PWAT values rising into the 1.5-2.2" range Friday into Saturday as an upper level trough cuts across the Southern Plains. This will lead to a gradual increase in PoPs going into the weekend. Temperatures during the daytime will be near to just above normal for this time of years as highs hang around the 85-95 degree range. Muggy and mild nights are expected each night this week with lows in the 70s inland to near 80 degrees along the coast. Heat indices through the week will be in the 100-105 degree range. && .AVIATION... (00Z TAF Issuance) Issued at 615 PM CDT Mon Jun 23 2025 Isolated showers/storms will continue over the next few hours before dissipating after sunset. CXO is seeing the most impacts as of right now with a thunderstorm right over the airport bringing temporary IFR conditions. Winds will become light and variable overnight bringing about the potential for patchy fog CXO and northward...this will also be paired with a brief window for MVFR ceilings mainly between 11-15Z. VFR conditions return on Tuesday morning as isolated showers begin to stream in along the coast. Expecting another round of scattered showers/storms in the late morning into the afternoon across the area. These have been covered with a PROB30 for now mainly after 18Z (after 15Z closer to the coast) as the coverage of convection will be rather sporadic. Expect winds to start out easterly in the morning and becoming southeasterly by the afternoon with sustained winds generally around 10 kt. Tuesday`s showers/storms will follow a similar pattern and dissipate shortly after sunset. Batiste && .MARINE... Issued at 1117 PM CDT Mon Jun 23 2025 Light to occasionally moderate onshore winds and 2 to 4 foot seas are expected for the next several days. Scattered showers and thunderstorms are expected for today and Wednesday. Higher winds and seas may occur in and around storms. Isolated to potentially scattered showers and thunderstorms are expected Thursday into the upcoming weekend. Persistent onshore winds will lead to higher water levels, in particular during high tide, as well as a moderate to high risk for rip currents along the Gulf facing coasts. Adams && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 93 74 91 74 / 30 20 30 10 Houston (IAH) 92 76 91 76 / 40 10 60 30 Galveston (GLS) 90 81 90 81 / 20 20 40 50 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...Adams AVIATION...Batiste MARINE...Adams