Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
298 FXUS64 KHGX 241120 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 620 AM CDT Tue Jun 24 2025 ...New AVIATION... .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... (12Z TAF Issuance) Issued at 612 AM CDT Tue Jun 24 2025 Another day of scattered showers and thunderstorms expected. Coverage will be highest along the coast/south of I-10 through around Noon, then expand northwards through around sunset. Coverage is expected to be a bit higher today compared to the past few days, so have gone with TEMPOs of TS instead of PROB30s for the main hours of concern. While activity with end over land through the night, there will likely still be some isolated showers or even thunderstorms over the coastal waters possibly impacting GLS and LBX through the night. Additional showers and storms are expected through the day on Wednesday for most of the region. Otherwise, patchy fog this morning at CXO will dissipate within the next hour or so giving way to area-wide VFR conditions with SE winds around 6-10kts. Higher, variable wind gusts will be possible with any of the thunderstorms that develop this evening. Fowler && .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) 92 74 89 73 / 20 10 40 0 Houston (IAH) 91 75 90 75 / 50 20 70 0 Galveston (GLS) 89 81 88 82 / 50 40 60 10 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...Adams AVIATION...Fowler MARINE...Adams