textproduct: Houston/Galveston

KEY MESSAGES

- Areas of nighttime & morning fog tonight-Sat night.

- Scattered showers on Saturday followed by clearing and breezy with a cold frontal passage Saturday night.

- Threat of a freeze Sunday night east of a College Station to Anahuac line.

DISCUSSION

Issued at 127 PM CST Thu Dec 11 2025

Southeast winds are in the process of resuming across the area. As such, we'll see increasing dewpoints which will likely lead to some fog development overnight. Patches of dense fog are a possibility...esp along and west of I-45. Otherwise, warmer with increasing cloud cover on Friday with a continued influx of Gulf moisture.

Periods of fog & sea fog will remain in the fcst (mainly the nighttime & morning variety) until the next passing front eliminates those chances Saturday night into Sunday morning. Chances for some scattered pockets of -ra/shra will gradually increase as the day progresses Saturday and will be maximized along the frontal convergence Saturday night. Precip will be ending for most all inland locations Sunday morning as the front pushes offshore.

There is some pretty cold air behind this system, though with the center of the 1040-1045mb high taking a more SE track toward the Midwest and Tennessee Valley, we'll get just the western periphery of it. Even then, it appears areas east of a College Station-Kingwood- Anahuac line could get some freezing temperatures Sunday night (26-32F).

A gradual warm-up will then begin Monday night through midweek as high pressure moves off to the east and a southeast flow resumes. Guidance is still depicting the next mid-upper trof advancing toward the area late Tue & Wed bringing another shot of some rain for some locations. 47

AVIATION

(12Z TAF Issuance) Issued at 607 AM CST Thu Dec 11 2025

VFR conditions will prevail through this evening. Light northeasterly winds early this morning will become easterly by the late morning, then southeasterly this afternoon. This southerly wind will lead to increasing moisture tonight leading to the potential for patchy, dense fog. MVFR conditions will begin to pop-up around or just after midnight with visibilities dropping to around 4-6mi. There will be the potential for IFR to LIFR conditions late tonight/near daybreak Friday morning with patchy, dense fog dropping visibility down to 1mi or less. Any fog the develops should dissipate by the mid-morning hours with VFR conditions then prevailing into Friday evening.

Fowler

MARINE

Issued at 127 PM CST Thu Dec 11 2025

Winds are in the process of returning to an onshore direction and expect these to continue through Saturday night. Increasing moisture may begin to lead to some patchy sea fog later tonight, followed by greater chances Friday night into Saturday night. Scattered showers will begin to pop up Saturday into Saturday night ahead of an approaching cold front. This front will move through the coastal waters late Saturday night or early Sunday morning, ending the sea fog threat and ushering in moderate to strong northeasterly winds and building seas for Sunday. Small Craft Advisories will be needed. Winds and seas gradually diminish Monday, and return to a southeast direction by Tuesday. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 49 71 58 73 / 0 0 10 20 Houston (IAH) 54 73 60 75 / 0 10 20 20 Galveston (GLS) 61 69 63 71 / 0 10 10 30

HGX WATCHES/WARNINGS/ADVISORIES

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