textproduct: Corpus Christi

KEY MESSAGES

Updated at 641 PM CDT Thu Apr 23 2026

- Moderate to Major Heat Risk beginning this weekend for the inland Coastal Plains to the Brush Country through next week

- Isolated showers/storms in the Victoria Crossroads Friday PM

- Coastal flooding conditions possible through the weekend

DISCUSSION

Issued at 134 PM CDT Thu Apr 23 2026

South Texas remains under a quasi-zonal flow with an approaching sub- tropical jet streak ready to move through the area on Friday. While rain chances aren't that great, some CAMs have an isolated shower/storm or two developing between San Antonio and Victoria. For this reason, I've gone ahead and 15-20% PoPs for Friday afternoon for the aforementioned region. While low chance, any storm that does develop will have plenty of CAPE to feed off, so we will have to monitor evening CAM runs to see if this threat materializes further, though the limiting factor would be that closer to the coast one is, the lower the threat given the increased distance from the stalling front.

From this weekend, temperatures warm back to well-above normal values with the Heat Risk increasing to mostly Moderate (level 2 of 4) with areas of the Brush Country reaching a Major Heat Risk (level 3 of 4) by Monday. Heat indices during the first half of the week will range from 105-110F.

Tide levels continually to gradually decrease this week. Observations at high tide today show the water level still leaving room for vehicle traffic, but some beaches have the water levels reaching the dunes. For this reason the Coastal Flood Advisory remains in effect through 7 PM tonight. Daily reconsideration of the product will be needed but the outlook is looking better for less frequent advisories being needed.

AVIATION

(00Z TAFS) Issued at 641 PM CDT Thu Apr 23 2026

Conditions have already begun deteriorating to MVFR in some sites with VFR conditions remaining elsewhere. A transition to MVFR to IFR conditions will be expected over the next few hours at some sites (ALI and CRP). All sites are expected to be in this range for mostly CIGs by midnight (06Z) though some patchy fog will be possible overnight. Conditions are forecasted to last through mid to late morning before gradually returning to VFR. Guidance is hinting that CRP could linger in MVFR conditions through the day tomorrow though this will be monitored over the next couple of cycles.

MARINE

Issued at 134 PM CDT Thu Apr 23 2026

Generally gentle to moderate (BF 3-4) onshore flow will persist through the week as high pressure builds over the area. Rain chances continue today before drier conditions return through the remainder of the week.

FIRE WEATHER

Issued at 134 PM CDT Thu Apr 23 2026

Minimum RH values will remain above 30% through Monday afternoon keeping the fire risk below elevated conditions. Next week, temperatures start climbing into near 100 degrees in the afternoons, reducing the Min RH values to near or slightly below 30%. Aside from isolated showers across the Victoria Crossroads Friday afternoon, wetting rain chances will be low (<20%) through the forecast period.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 73 86 73 88 / 0 0 10 0 Victoria 70 86 70 89 / 0 20 10 0 Laredo 74 94 73 99 / 10 0 0 0 Alice 72 91 71 94 / 0 0 10 0 Rockport 72 83 73 84 / 0 10 10 0 Cotulla 72 92 72 97 / 0 10 10 0 Kingsville 72 89 72 91 / 0 0 0 0 Navy Corpus 74 82 74 83 / 0 10 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Coastal Flood Advisory until 10 PM CDT this evening for TXZ345- 442-443-447.

GM...None.