Sunday, December8, 2019
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Marine Weather and Tides
Port O'Connor, TX

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:07AMSunset 5:32PM Sunday December 8, 2019 7:44 PM CST (01:44 UTC) Moonrise 3:21PMMoonset 3:36AM Illumination 92% Phase: Waxing Gibbous; Moon at 12 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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GMZ330 Matagorda Bay- 344 Pm Cst Sun Dec 8 2019
Tonight..South winds around 10 knots. Bay waters smooth to slightly choppy.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers late in the afternoon.
Monday night..South winds 5 to 10 knots becoming southeast 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers early in the evening. Isolated Thunderstorms. Showers in the late evening and overnight.
Tuesday..North winds 15 to 25 knots becoming 20 to 25 knots in the afternoon. Bay waters choppy becoming rough in the afternoon. Showers and isolated Thunderstorms.
Tuesday night..North winds 15 to 20 knots. Bay waters choppy. A slight chance of showers in the evening.
Wednesday..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday night..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Thursday..Northeast winds around 10 knots. Bay waters smooth to slightly choppy.
Thursday night..North winds 5 to 10 knots. Bay waters smooth.
Friday..North winds 5 to 10 knots. Bay waters smooth.
Friday night..North winds around 5 knots becoming west after midnight. Bay waters smooth.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 344 Pm Cst Sun Dec 8 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore flow will strengthen ahead of a cold front moving across the waters Tuesday morning. Rain or showery weather will be associated with the approach and passage of this front early Tuesday. Winds and seas will reach advisory criteria in the wake of the front from Tuesday afternoon into Wednesday morning.


7 Day Forecast for Marine Location Near Port O'Connor, TX
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location: 28.44, -96.4     debug


Area Discussion for - Corpus Christi, TX
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FXUS64 KCRP 082334 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 534 PM CST Sun Dec 8 2019

DISCUSSION.

00Z aviation discussion follows.

AVIATION.

Confidence is high in another round of IFR visbys later tonight, mainly from ALI-COT-VCT. Steadier winds at CRP should keep this mostly in the form of IFR stratus, but deeper moisture this go around looks to keep low clouds intact for much of the morning. VCT should only recover to MVFR by midday and remain so for the majority of the afternoon.

PREV DISCUSSION. /Issued 356 PM CST Sun Dec 8 2019/

SHORT TERM (Tonight through Monday Night) .

A weak upper low will develop over southern California tonight and move southeast into northwest Mexico on Monday, while the stronger northern stream upper trough moves out of the central Rockies tonight through the central plains Monday. Southerly low level flow will increase to 25-30 knots over the region tonight in response to low pressure area over the southern plains ahead of the upper trough. Expect clouds will increase overnight but winds will be light enough over the inland areas for areas of fog to form again overnight. The 85H flow will veer to the southwest on Monday bringing in temperatures above 20 degrees C. After morning clouds, expect a very warm day on Monday with highs just below record levels.

The cold front associated with the upper trough moving to the east will move into the area after midnight. Moisture will be lacking ahead of the front and will only show a slight chance of showers across northeast areas Monday evening. But moisture will arrive with the front overnight as the upper low opens up into a short wave trough that will moving into the Texas Big Bend by 12Z Tuesday. Expect precipitation will increase in coverage overnight with best chance over the Victoria Crossroads. Went just below the NBM but above the MOS guidance.

LONG TERM (Tuesday through Sunday) .

The cold front will be pushing off the coast at the start of the long term. The warmest temperatures for the day are expected to occur just ahead of the frontal passage, with temperatures to remain in the 50s for the majority of the day. Sufficient moisture ahead of the front will lead to scattered showers across the region, with slightly less activity across the western Brush Country. Rain chances will diminish from northwest to southeast behind the front. Breezy to windy north wind will develop behind the front. Winds across the bays and Gulf waters will strengthen to at least Small Craft Advisory, with possible need for Gale Warnings for portions of the Gulf for frequent gusts to near gale force. Along the coastal area, especially for the barrier islands, Wind Advisory conditions may be needed. Winds will gradually diminish through early Wednesday.

Chilly nights are expected Tuesday night and Wednesday night with lows in the 30s/40s. Although not expecting freezing conditions, will need to monitor low-lying locations toward the Cross-Fowlerton area in the Brush Country for overnight low dipping to just above freezing. Wind chills will feel even colder in the low to mid 30s both nights as well.

Temperatures will gradually warm through the latter half of the week as surface high pressure slides to the east. A general east- northeast flow will occur through Thursday before another mid-level shortwave and weak frontal boundary moves through the region Thursday night and Friday. A lack in moisture should keep this frontal boundary rather dry. Again, surface high pressure will slide to the east Saturday, but this time with onshore flow returning. Temperatures will warm through the weekend, reaching into the upper 70s to near 80 degrees Sunday.

MARINE .

Onshore flow will strengthen to moderate levels tonight into Monday as low pressure strengthens over the southern plains with SCEC conditions over the offshore waters. The southerly flow will weaken Monday night as the cold front pushes into south Texas. Scattered showers will be possible late Monday night ahead of the cold front.

Chances for showers will increase through Tuesday morning with the approach of a cold front. The cold front will push offshore shortly after sunrise with strong to very strong northerly winds to develop Tuesday and Tuesday night. Wind gusts to gale force will be possible Tuesday with seas to build to hazardous levels. Winds and rain chances will diminish early Wednesday. A slight chance of showers returns later in the week.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 64 84 55 60 40 / 0 0 40 70 10 Victoria 62 82 49 54 36 / 0 10 80 80 10 Laredo 61 85 54 58 40 / 0 0 10 30 10 Alice 61 87 53 58 39 / 0 10 40 60 10 Rockport 66 80 54 58 41 / 10 0 60 80 10 Cotulla 57 82 50 56 35 / 0 10 40 40 10 Kingsville 63 87 55 60 40 / 0 0 40 60 10 Navy Corpus 67 80 56 61 44 / 0 0 40 70 10

CRP WATCHES/WARNINGS/ADVISORIES. TX . None. GM . None.



MCZ/93 . AVIATION


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi62 min SSE 7 G 8 67°F 67°F1013.2 hPa
MBET2 4 mi62 min S 8.9 G 9.9 68°F 65°F1012.2 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi62 min SE 8 G 8.9 68°F 69°F1013.3 hPa
VCAT2 18 mi62 min SSE 7 G 8 67°F 68°F1013.2 hPa
AWRT2 26 mi62 min SE 5.1 G 7 69°F 67°F1012.7 hPa
EMAT2 32 mi56 min SE 6 G 7 67°F 66°F1013.2 hPa
KBBF 38 mi29 min S 17 140°F 133°F
KBQX 42 mi29 min S 12 72°F 66°F
RCPT2 - 8774770 - Rockport, TX 45 mi62 min 69°F 1013.1 hPa
SGNT2 47 mi56 min SE 5.1 G 6 67°F 67°F1013.5 hPa

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX21 mi51 minSE 79.00 miFair66°F63°F90%1013.5 hPa
Port Lavaca - Calhoun County Airport, TX21 mi49 minSE 510.00 miFair67°F63°F87%1013.5 hPa

Link to 5 minute data for KPKV

Wind History from PKV (wind in knots)
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Last 24hrS3S3CalmCalm--CalmCalmCalmN3N3CalmNE3CalmE4SE8E7S12
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1 day agoN8N9N7N8N4N4N7N7N6N6N5N4N7N11N8NE7NE5NE4NE4N3NE5NE3SE4S4
2 days agoS5S4S5S4CalmS5S5CalmNW5CalmCalmNW3W5NW12N14N10N12
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Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Sun -- 03:36 AM CST     Moonset
Sun -- 07:05 AM CST     Sunrise
Sun -- 09:51 AM CST     0.20 feet Low Tide
Sun -- 03:20 PM CST     Moonrise
Sun -- 05:29 PM CST     Sunset
Sun -- 07:36 PM CST     0.75 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sun -- 03:37 AM CST     Moonset
Sun -- 07:06 AM CST     Sunrise
Sun -- 12:03 PM CST     0.23 feet Low Tide
Sun -- 03:21 PM CST     Moonrise
Sun -- 05:29 PM CST     Sunset
Sun -- 09:23 PM CST     0.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (20,4,5,8)
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Ground Weather Radar Station Corpus Christi, TX
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weather_mapweather_map weather_map

Gulf Stream Current


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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.