textproduct: Houston/Galveston

KEY MESSAGES

- Precipitation has ended across the area but icy spots on roadways continue. Check road conditions before traveling. Any remaining moisture on roadways will likely freeze tonight and result in additional icy spots through at least Monday. - Extended periods of below freezing temperatures along with hard freezes are expected Sunday morning through Tuesday morning. Portions of the Piney Woods and Brazos Valley will also see hard freezes Wednesday morning.

- Dangerously cold wind chills are expected tonight, with values ranging from as low as 15 degrees at the coast and as low as near 5 degrees in the Piney Woods and Brazos Valley.

DISCUSSION

Issued at 1220 PM CST Sun Jan 25 2026

All precipitation has exited the forecast area, but temperatures have been dropping through the morning thanks to strong cold air advection off of the sleetpack/snowpack to our northwest and persistent stratus/stratocumulus clouds. Temperatures have dropped below freezing across a large portion of the forecast area, and will only warm up a tiny bit during the afternoon. This has caused some icy spots on roadways even in areas that did not receive freezing rain/sleet as lingering moisture on roadways freezes. The winter weather warnings/advisories have been cancelled but travel impacts will remain. Tonight, strong cold air advection will continue under mostly cloudy skies, with low temperatures being purely advection driven. While temperatures and wind chills have trended up slightly for tonight into tomorrow, they remain dangerously low with temperatures in the teens to lower 20s expected (hard freeze conditions) and wind chills in the single digits and teens. Continue to take all cold weather precautions. Icy patches will remain a concern on roadways as all remaining moisture re-freezes. Tonight another shortwave moves out of West Texas, but the associated mid- level moisture looks to remain north of the forecast area. Can't rule out a few flurries this afternoon and tonight given the cold air mass and the thin layer of moisture in the cloud deck around - 10C but not enough for any impacts.

Chilly northerly winds continue on Monday. Models have trended a bit warmer which will allow for more of the area to reach above freezing given less widespread ice accumulations than expected, but temps will still mainly remain below freezing up in the Brazos Valley and northern Piney Woods where more accumulation occurred. Monday night the center of an almost 1040 mb surface high moves directly overhead, resulting in ideal radiational cooling conditions with calm winds. We are still looking at lows in the teens to lower 20s again Monday night, and a few cooler spots up in the Piney Woods will probably reach the single digits. An Extreme Cold Warning remains in effect until Tuesday. See the climate section for record low temperature information.

Dry conditions and below normal temperatures are expected through Thursday with persistent troughing over the central and eastern CONUS. Another hard freeze is expected across the Piney Woods and Brazos Valley Thursday night. A southern stream shortwave approaches the area by Friday and may result in an area of low pressure developing in the northwest Gulf along a frontal boundary. 20-50% rain chances are currently forecast Friday, highest near the Gulf Coast. Another Arctic air mass moves in behind this system for the weekend with concerns for additional hard freezes and low wind chills. The Probabilistic WSSI from WPC currently indicates a 10-20% chance of at least minor winter weather impacts over a broad area of the southern CONUS. We'll keep an eye on it, but this is still a long way out.

JDavis

AVIATION

(18Z TAF Issuance) Issued at 1220 PM CST Sun Jan 25 2026

MVFR conditions are expected to continue throughout much of this TAF cycle before improving towards the tail end of the forecast. However, some sites could briefly see IFR conditions for the next few hours. Most sites will improve to VFR as the cloud deck begins to scatter out around 16-18z tomorrow morning. Gusty winds will continue through this afternoon with winds relaxing to under 12 knots around 06-08z for most sites. No rain is expected within this TAF cycle.

WFO CRP

MARINE

Issued at 1220 PM CST Sun Jan 25 2026

Strong north to northwest winds and elevated seas are expected through Monday. A few showers are possible well offshore tonight and tomorrow. Temperatures will remain very cold through Monday night, with freezing temperatures expected at the coast during the overnight and morning hours. Low water conditions are also forecast for Galveston Bay Monday and Tuesday mornings. Winds and seas become much lighter by the middle of the week. However, another storm system could bring hazardous winds and seas the region by next weekend.

JDavis

CLIMATE

Issued at 1220 PM CST Sun Jan 25 2026

Record low temperatures:

January 26: Houston Intercontinental (IAH): 23 (1943) Houston Hobby (HOU): 24(1940) Galveston (GLS): 25 (1940) Palacios (PSX): 30 (1961) January 27: Houston Intercontinental (IAH): 19 (1897) Houston Hobby (HOU): 18 (1940) Galveston (GLS): 21 (1897) Palacios (PSX): 29 (1976)

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 19 33 14 42 / 0 0 0 0 Houston (IAH) 23 39 21 46 / 0 0 0 0 Galveston (GLS) 29 42 34 50 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...Extreme Cold Warning until noon CST Tuesday for TXZ163-164- 176>179-195>200-210>214-226-227-235>238-300-313-335>338- 436>439.

GM...Small Craft Advisory until noon CST Monday for GMZ330-335.

Low Water Advisory from midnight tonight to 3 PM CST Tuesday for GMZ335.

Small Craft Advisory until 6 PM CST Monday for GMZ350-355-370- 375.