textproduct: Houston/Galveston

KEY MESSAGES

- High pressure will keep conditions dry and temperatures well above normal over the next several days. - Persistent southerly flow will lead to the development of some late night clouds and patchy fog.

- Less humid and slightly cooler temperatures are possible over the weekend with the passage of a dry cold front Friday night.

DISCUSSION

Issued at 1224 AM CDT Thu Mar 25 2026

Strong mid-upper level ridging over northern Mexico and the Desert Southwest will slightly expand eastward over the next few days. With corresponding height and thickness rises (peaking Friday), we'll see an additional degree or two added to daytime highs in the coming days. Prevalent southerly llvl flow will allow for some late night & early morning clouds & patchy fog...burning off during the mid morning hours daily.

Heading into late week, a cold front and associated 1035-1040mb high will be dropping southward out of Canada and into the Plains. This front will eventually sag southward through Southeast Texas Friday night. (It'll be moisture starved...so no rain with this one unfortunately). The surface high behind the front will be tracking more sewd toward the Mid Atlantic states, so although we'll see some cooler temperatures this weekend, they'll just be a bit closer to seasonal norms. Main noticeable difference will be the less humid air for 36-48 hours.

Onshore flow off the Gulf resumes on Sunday bringing dewpoints back up into the 60s early next week. Eventually we'll see the dominate mid-upper ridging weaken and move to our east. And hopefully with enough of a low level moisture return toward midweek we might be able to begin re-introducing some diurnally POPs back into the forecast. 47

AVIATION

(00Z TAF Issuance) Issued at 551 PM CDT Tue Mar 24 2026

The forecast for tonight into tomorrow is a blend of short-term guidance coupled with persistence forecasting. Therefore, the outlook for tonight looks similar to last night, with widespread sub-VFR cigs/vis developing overnight. Some uncertainty regarding whether or not vis/cigs will become as low for as long as it did last night. That being said, most location are forecast to drop to IFR. Conditions should trend back to VFR by mid/late morning tomorrow, with winds increasing from the S to SE.

MARINE

Issued at 1224 AM CDT Thu Mar 25 2026

Light to moderate south-southeast winds low seas will prevail for the next several days. A cold front is expected to push off the coast Friday night bringing a period of moderate northeast and east winds and some higher seas into Saturday. Southeast winds should resume as the day progresses Sunday and persist into next week. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 86 64 87 64 / 0 0 0 0 Houston (IAH) 85 64 86 64 / 5 0 0 0 Galveston (GLS) 78 68 77 68 / 5 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.