textproduct: Houston/Galveston

KEY MESSAGES

- Mostly cloudy, warm, muggy, and breezy conditions Tuesday.

- Next weather system and associated band of storms push across the region late Tuesday night into Wednesday followed by cooler, breezy, and seasonal conditions to end the work week.

- Some hazardous marine conditions mariners and Spring Breaker's should be aware of: some fog tonight, rip currents & building surf Tue-Wed, moderate to strong north winds Wed night and Thurs (typically inflatables are discouraged by beach patrol with offshore winds).

DISCUSSION

Issued at 119 PM CDT Mon Mar 9 2026

Higher dewpoint air is moving back inland as the old frontal boundary washed out and southeast winds have resumed. We'll probably see some sct shra and iso tstm development this afternoon, esp north of I-10 as we get a little additional heating. This activity should wane this evening.

Pressure gradient tightens on Tuesday in advance of the next storm system that'll be making its way eastward into the region. SSE winds will be increasing to 15-25mph through the day. Though moisture availability will be in place, significant forcing mechanisms don't appear to be. So, am not expecting much of significance in terms of precip.

As the western mid-upper trof begins moving closer and into Texas Tuesday night, large scale lift should be on an upward trend and anticipate that we'll see a band of showers and storms initiate across West Texas. This precip should make its way into the Brazos Valley just prior to sunrise Wed then continue advancing across the remainder of the region during the day...followed by some wrap-around light rain and the frontal passage after the initial convection passes. In terms of severe wx, we'll have a 40-45kt llj, modest CAPEs, and a touch of upper diffluence in place. That said, overall instability looks somewhat marginal considering the time of day (unless the system timing ends up slower than fcst). It's something to keep an eye on given that it is spring, but as of this writing it looks to me like one of times we see some localized 25-40mph gusts and brief heavy downpours on the stronger segments of the progressive line of precip. But again...we'll watch guidance trends should the atmos decide to have other plans.

Cooler and breezy conditions are expected Wednesday night and Thursday. As high pressure moves off to the east and onshore winds resume Thurs night, a gradual warm-up is fcst into the weekend (though still fairly pleasant wx). Another fairly healthy front is expected Sunday night-ish. It's looking somewhat moisture starved. 47

AVIATION

(12Z TAF Issuance) Issued at 536 AM CDT Mon Mar 9 2026

Widespread MVFR conditions (CIGs around 1500-2000) are being seen across the area this morning with areas of IFR conditions south of SGR (CIGs around 600-800ft). There may be a brief window of CIGs around 700ft for the rest of the region through around 14z, but MVFR conditions are expected to largely prevail. CIGs lift through the late morning with VFR conditions prevailing this afternoon into this evening. A return to MVFR conditions is expected between 4-6z tonight, with again potential for IFR CIGs late tonight into early Tuesday morning.

Southerly winds around 7-12kt will develop later this morning and continue through the day. Winds decrease to around 5-8kt overnight, but remain southerly.

Isolated showers are possible this afternoon between 19-23z, but coverage will be so limited that it could not be included in the TAFs.

Fowler

MARINE

Issued at 119 PM CDT Mon Mar 9 2026

Some hazy conditions due to patchy fog will linger in the nearshore waters. Though visibilities will remain reduced tonight, it appears that the dense variety is more probable in the Gulf waters off Galveston versus the bays. By late Tuesday night, southerly winds appear strong enough to mitigate any low visibilities. Otherwise, increasing onshore winds and building seas are anticipated Tuesday into Wednesday ahead of the next storm system that will be pushing through the area. Caution/Advisory flags will likely be required at some point later on Tues. In addition, risk of rip currents will increase along area beaches thru Thursday (swim near a lifeguard and away from rocks, jetties, piers). Expect storms ahead of the cold front to be moving off the coast Wednesday afternoon, followed strong north winds and building seas in its wake for Wednesday night into Thursday. Gusts to near gale are a possibility along with 6-10ft seas. Improving conditions Friday and this weekend as light onshore winds resume. Possibly another moderate-strong front Sunday night or Monday. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 69 84 66 76 / 10 30 70 90 Houston (IAH) 71 84 72 79 / 10 10 30 90 Galveston (GLS) 69 76 70 76 / 10 10 10 80

HGX WATCHES/WARNINGS/ADVISORIES

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