textproduct: Houston/Galveston

KEY MESSAGES

- Light freeze for many areas to start the day followed by sunny skies and highs in the 60s.

- Dry, with a gradual warming trend on a daily basis for the remainder of the week.

- Gradually improving marine conditions today.

DISCUSSION

Issued at 1249 AM CDT Tue Mar 17 2026

Cloudiness associated with the shortwave riding down the eastern periphery of the mid-upper western ridge should be pushing southward and out of the area in the not too distant future. With lighter winds, clearing skies and a dry airmass in place, anticipate that we'll see a light freeze down to about the I-10 corridor (with the exception of the metro area) by morning. With sunny skies and that same dry airmass in place during the day, we should see temps rebound into the low-mid 60s this afternoon.

The rest of the week will be dominated by ridging...the expansive mid-upper variety centered to our west and lower level ridging in the vicinity and just to our east. Anticipate a gradual warming trend on a daily basis with readings in the 40s/70s Wed up toward the 60s/~90 toward the end of the week. No rain is expected. 47

AVIATION

(12Z TAF Issuance) Issued at 626 AM CDT Tue Mar 17 2026

Light winds will veer southeast today. Winds occasionally gusty near the coast. VFR vis and cigs to prevail.

MARINE

Issued at 1249 AM CDT Tue Mar 17 2026

Moderate northerly winds and elevated seas will continue slowly diminish overnight into the morning hours. Mariners should be aware of negative tide levels, especially in the northern bays overnight and this morning. Have extended the SCA in the Gulf til 7am and the low water advisory for Galveston Bay too. Conditions should continue improving as the day processes as high pressure gradually moves to the east and onshore winds resume. A southerly flow, generally in the 10-15 knot range, should prevail for the remainder of the week. 47

FIRE WEATHER

Issued at 1249 AM CDT Tue Mar 17 2026

Dry air will remain in place today, though wind speeds will be much lower. Minimum daytime RH's will be around 20% inland and 35% along the coast. Winds will gradually swing back around to the southeast during the day with speeds generally in the 8-13mph range. The Texas Forest Service indicates a high fire danger rating today and a moderate to high rating Wednesday. With the return of the southerly flow from the Gulf, we should see a slow increase in RH's in the days ahead. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 63 42 76 51 / 0 0 0 0 Houston (IAH) 63 47 76 54 / 0 0 0 0 Galveston (GLS) 60 54 69 62 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...Freeze Warning until 9 AM CDT this morning for TXZ163-164- 176>179-195>200-210>212-300.

GM...Low Water Advisory until 7 PM CDT this evening for GMZ335.