textproduct: Corpus Christi

KEY MESSAGES

Updated at 1204 AM CST Fri Feb 20 2026

- Widespread fog early this morning and again tonight.

- Cold front Saturday will bring temperatures back near normal Sunday into early next week.

- Elevated to Critical fire weather concerns Sunday with very low RH and gusty winds.

DISCUSSION

Issued at 1204 AM CST Fri Feb 20 2026

Another challenging fog forecast early this morning. 925mb winds, while lighter than last night could still be the fly in the ointment of dense fog. With the haze that has been in place all day yesterday and dewpoints into the upper 60s, leaning toward an expectation of wide spread low vis, and likely areas of dense fog this morning. Bays and nearshore water areas have dropped to around 1 mile and with more conducive winds than last night expect them to continue to fall, thus a marine dense fog advisory is in place through mid- day. With such a deep low level moist layer, vis conditions will be slow to improve through the day. Locations in the Victoria Crossroads and along the upper coastal bend have seen visibility reductions to 1/4 mile or less and as such a Dense Fog Advisory has been issued for these areas through at least 9am.

Not much change for the rest of the forecast. Still think we could see some streamer showers along the upper coast this morning and along the whole coast Saturday morning with moisture convergence and weak instability each morning. Instability increases a bit today, so can't rule out a shower, but streamer type convergence activity is traditionally more of a morning situation, and with the shallow nature (below 850mb), this is the primary player expected, thus will keep this afternoon dry.

Initial frontal boundary approaches and possibly pushes through the area early Sunday, but it'll take a reinforcing surge coming through later in the day to have much affect on conditions. Winds above the surface remain south to southwest through the day Saturday. This would open up the question of isentropic lift, but guidance suggests the best lift should remain in the marine areas and along the immediate coast, with more parallel flow over land.

As far as temperatures, expect highs in the low 90s in the brush country this afternoon, with 80s on Saturday before the stronger push of cooler air comes in. Highs drop to the 70s Sunday and Monday with lows in the 40s. Temps gradually warm into the middle of next week.

AVIATION

(06Z TAFS) Issued at 1204 AM CST Fri Feb 20 2026

VIS reductions due to fog continues to keep flight categories in MVFR/IFR territory. VIS reductions to 1/4SM or less present over the Victoria Crossroads will persist through the early morning hours, but most locations should see improvement beyond 14Z with a lingering haze expected this afternoon. KLRD/KCOT will only see brief reductions to MVFR/IFR closer to 12Z-15Z. Fog returns again at the end of the TAF cycle.

MARINE

Issued at 1204 AM CST Fri Feb 20 2026

Gentle to moderate (BF 3-4) onshore flow through the remainder of the week, with occasionally fresh (BF 5) breezes. Dry conditions will continue until this weekend when low chances (15-20%) for precipitation return over area waters ahead of our next front. This frontal passage will shift winds to the north-northeast with fresh to strong (BF 5-6) conditions and seas at 6-10 feet. A small craft advisory will most likely be needed by Saturday night, persisting through Sunday.

FIRE WEATHER

Issued at 1204 AM CST Fri Feb 20 2026

Elevated RH values continue on Friday before our next cold front moves through Saturday. We'll have an initial push early Saturday with a stronger push in the afternoon and evening. It's unclear how much RH values will drop Saturday, but winds also remain only moderate. By Sunday, very dry air and strong winds are expected and will likely lead to elevated to critical fire weather conditions area wide. RH values are forecasted to remain on the lower end through the majority of the next week, but winds will not be as strong.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 83 63 84 49 / 10 0 10 0 Victoria 81 60 82 43 / 10 0 10 0 Laredo 90 65 85 49 / 0 0 10 0 Alice 89 62 86 46 / 10 0 10 0 Rockport 80 65 82 50 / 10 0 20 0 Cotulla 85 60 84 44 / 0 0 0 0 Kingsville 88 63 85 48 / 10 0 10 0 Navy Corpus 77 65 78 52 / 10 0 20 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Dense Fog Advisory until 8 AM CST this morning for TXZ233-234- 245>247-345>347-447.

GM...Dense Fog Advisory until noon CST today for GMZ231-232-236-237- 250-255.