textproduct: Corpus Christi

KEY MESSAGES

Issued at 212 PM CDT Fri Sep 11 2026

- Moderate to Extreme risk of heat-related impacts across a large portion of South Texas through the weekend.

- Heat Advisory in effect through 7 PM today.

- Low to very low chances through Wednesday.

- Elevated Fire Weather conditions possible through Monday, mainly across the Brush Country and Rio Grande Plains.

DISCUSSION

Issued at 212 PM CDT Fri Sep 11 2026

Deep moisture has shifted substantially as expected and has actually left us with little to no shower activity this morning. Any sea breeze activity will be very limited today as satellite estimated PWAT values are at or below normal for most of the area. Moisture remains low through Saturday and only a notch better for Sunday - This is a change from yesterday when guidance had suggested more of a moisture push coming into the region. Have only silent 10 pops with the sea breeze for Sunday. By Monday, high pressure is fully in control, thus PoPs remain quite low. Moisture does increase though, so an isolated sea breeze shower/storm is possible. The next chance for more than a low chance will be Thursday as a wave of moisture comes in and a short wave rotates around at the same time. At this time a moderate chance of showers/storms at that time.

High temperatures remain above normal at least through the middle of next week with heat index as ridging builds. Heat index values above 110 will be likely again especially east on Saturday, thus another heat advisory is likely. We'll remain borderline on heat advisory conditions for Sunday and Monday with lower chances into next week.

Breezy conditions are expected through the weekend and into early next week in the afternoons and evenings. This, combined with low RH values over the Brush country may result in elevated fire weather conditions over that region.

AVIATION

(18Z TAFS) Issued at 212 PM CDT Fri Sep 11 2026

VFR conditions will continue throughout this period as moisture levels have dropped significantly over much of the area. Gusty afternoon winds will continue this afternoon and develop once again tomorrow, possibly a little earlier than today.

MARINE

Issued at 212 PM CDT Fri Sep 11 2026

A moderate (BF 4) onshore flow is expected today across most of the Middle Texas Coastal waters, while a fresh (BF 5) breeze is expected south of Port Aransas across Corpus Christi and Baffin Bays and out to 20 nautical miles this afternoon. A Small Craft Advisory is in effect for the bays and nearshore waters south of Port Aransas through this evening. This trend is expected to continue through the weekend into early next week. Seas will increase to 2-4 feet this weekend. There is a 15-35% chance of showers and thunderstorms today and again Sunday. Otherwise, low rain chances can be expected most days.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 80 98 80 96 / 0 10 10 10 Victoria 77 100 77 100 / 0 10 10 20 Laredo 80 106 79 104 / 0 10 10 0 Alice 76 103 77 101 / 0 10 10 20 Rockport 81 94 82 94 / 0 10 10 10 Cotulla 79 105 78 104 / 0 10 10 0 Kingsville 78 101 78 99 / 0 10 10 20 Navy Corpus 83 92 83 91 / 0 10 10 10

CRP WATCHES/WARNINGS/ADVISORIES

TX...Heat Advisory until 7 PM CDT this evening for TXZ230>234-240>244- 246-247-342>344.

GM...Small Craft Advisory until 10 PM CDT this evening for GMZ231-232- 250.