Marine Weather and Tide Forecast for Port O'Connor, TX

DISCUSSION
Issued at 126 AM CDT Sun Apr 19 2026

Not much change in the forecast now that the front has arrived.
Convection has been pretty limited so far, but was expected to be that way in the early post frontal environment. With some mid and low level energy lobes passing by tonight should see some waves of at least showers with a few embedded thunderstorms. The best location for this appears to be the southern Coastal Plains (Corpus/ALI to Hebbronville and south). Sunday daytime looks like a relative minimum in rain chances with only low end PoPs, but isentropic lift kicking in later Sunday into early next week will increase rain chances once again. Still expect an area wide average of an inch, possibly as much as 2 inches.

Only minor changes to high temperatures the next couple of days.
Well below normal temperatures are expected with highs in the 60s for most of the area on Sunday, and in the 60s to lower 70s on Monday. Interestingly, looking at forecast trends among many models, the NAM (and its family) is the only model that has a warming trend in forecast high temperatures for Sunday over the past 7 days. It started way too cold and has come back pretty closely lined up with where other models have trended down to. Whatever model you look at, confidence is pretty high in well below normal temperatures! Record low max temperatures are in play for all sites. CRP with a low chance of breaking 65, Victoria a bit higher potential with a current low max record of 68, and Laredo a near certainty with an anomalously high current record of 70 and a forecast high of 61.

Gradually warming temperatures are expected from Tuesday through the end of the week, likely back above normal by Friday. Rain chances will persist into Wednesday mainly for eastern parts of the area before more zonal mid-level flow sets up and we will see a drier couple of days to finish out the week.

AVIATION
(06Z TAFS)
Issued at 126 AM CDT Sun Apr 19 2026

MVFR CIGs are expected to redevelop overnight and persist through much of Saturday morning as low-level moisture remains in place with continued southeasterly flow. Some improvement to VFR is briefly possible Saturday afternoon before the approaching front. This front will move from north to south across the region Saturday afternoon into the evening (between 18-00Z). Expect a sharp wind shift to the north-northeast with increasing speeds and gusts potentially reaching 25-30 knots immediately behind the boundary. CIGs are expected to lower again to MVFR along and behind the front with the scattered showers and storms that will develop. PROB30 groups for thunderstorms have been included at all sites late in the TAF period to denote IFR conditons, reduced VSBYs, and increased wind gusts in and around any storms.

MARINE
Issued at 126 AM CDT Sun Apr 19 2026

A gale warning remains in effect for offshore waters north of POrt Aransas where near gale force winds with gale force gusts are expected to develop through the night. A few gale force gusts are possible over the rest of the Middle Texas coastal waters, where small craft advisories are in effect for mainly strong to near gale force winds. Rain chances will increase Sunday and continue through Wednesday. Mainly moderate to fresh onshore flow is expected Monday through much of the upcoming week.

FIRE WEATHER
Issued at 126 AM CDT Sun Apr 19 2026

Rain chances remain elevated through the first half of the week behind a cold front that moved through on Saturday. Cooler than normal temperatures will persist through Monday before gradually warming through the remainder of the week. With elevated RH and expected rains, the fire weather concern is not expected to be elevated through this period.

PRELIMINARY POINT TEMPS/POPS
Corpus Christi 68 62 73 67 / 40 60 70 50 Victoria 70 56 71 60 / 30 40 60 50 Laredo 61 57 67 64 / 60 60 60 60 Alice 66 59 72 65 / 50 60 70 50 Rockport 72 64 74 69 / 30 60 70 50 Cotulla 64 56 66 61 / 40 60 70 50 Kingsville 66 60 73 66 / 50 60 70 50 Navy Corpus 71 67 74 70 / 40 60 70 50

CRP WATCHES/WARNINGS/ADVISORIES
TX...Coastal Flood Advisory until 7 PM CDT this evening for TXZ245- 342>347-443-447.

GM...Small Craft Advisory until midnight CDT tonight for GMZ231-232- 236-237-250-255-270.

Gale Warning until 1 PM CDT this afternoon for GMZ275.

Small Craft Advisory from 1 PM this afternoon to midnight CDT tonight for GMZ275.