|
Marine Weather and Tides
Version 3.4 |
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it. 8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue. 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 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. |
| Sunrise 7:16AM | Sunset 6:04PM | Monday January 18, 2021 8:52 PM CST (02:52 UTC) | Moonrise 11:08AM | Moonset 11:22PM | Illumination 32% |  |
GMZ130 Laguna Madre From The Port Of Brownsville To The Arroyo Colorado- Laguna Madre From The Arroyo Colorado To 5 Nm North Of Port Mansfield Tx- Laguna Madre From 5 Nm North Of Port Mansfield To Baffin Bay Tx- 325 Pm Cst Mon Jan 18 2021
.small craft should exercise caution...
Tonight..South winds 15 to 20 knots. Choppy on the bay.
Tuesday..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
Tuesday night..East winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Chance of showers.
Wednesday..Southeast winds 5 to 10 knots. A light chop on the bay. Chance of showers.
Wednesday night..South winds 5 to 10 knots. A light chop on the bay. Chance of showers.
Thursday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers in the morning.
Thursday night..South winds 10 to 15 knots. A moderate chop on the bay.
Friday..South winds 5 to 10 knots. A light chop on the bay.
Friday night..Southeast winds 5 to 10 knots. A light chop on the bay.
Saturday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers.
Saturday night..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
.small craft should exercise caution...
Tonight..South winds 15 to 20 knots. Choppy on the bay.
Tuesday..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
Tuesday night..East winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Chance of showers.
Wednesday..Southeast winds 5 to 10 knots. A light chop on the bay. Chance of showers.
Wednesday night..South winds 5 to 10 knots. A light chop on the bay. Chance of showers.
Thursday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers in the morning.
Thursday night..South winds 10 to 15 knots. A moderate chop on the bay.
Friday..South winds 5 to 10 knots. A light chop on the bay.
Friday night..Southeast winds 5 to 10 knots. A light chop on the bay.
Saturday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers.
Saturday night..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 325 Pm Cst Mon Jan 18 2021
Synopsis..Less than favorable marine conditions are anticipated through the forecast period. Winds and seas will continue to increase this afternoon due to a tightening pressure gradient. A small craft advisory has been issued for the gulf waters due to elevated seas. Small craft exercise caution conditions will hold for the laguna madre. Persistent southeasterly winds will hold through Thursday evening, with an extended period of small craft exercise caution conditions likely. Additional small craft advisories may also be needed, at least intermittently, through much of the coming week.
Synopsis..Less than favorable marine conditions are anticipated through the forecast period. Winds and seas will continue to increase this afternoon due to a tightening pressure gradient. A small craft advisory has been issued for the gulf waters due to elevated seas. Small craft exercise caution conditions will hold for the laguna madre. Persistent southeasterly winds will hold through Thursday evening, with an extended period of small craft exercise caution conditions likely. Additional small craft advisories may also be needed, at least intermittently, through much of the coming week.
7 Day Forecast for Marine Location Near Port Isabel, TX
Hourly EDIT Help
location: 26.06, -97.22 debug
Area Discussion for - Brownsville, TX
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS64 KBRO 182332 AAA AFDBRO
Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 532 PM CST Mon Jan 18 2021
DISCUSSION. Updated for latest aviation discussion below.
AVIATION. Current satellite and observations show VFR conditions at all aerodromes. Mid and low level clouds will continue to be a mainstay through the TAF period. VFR conditions are expected to continue at HRL through the period with MFE and BRO seeing periodic MVFR conditions this evening into the first part of the overnight before returning to VFR near or after midnight. Breezy winds will continue to affect all terminals this evening with gusts to 30 kts. Winds will decrease overnight at HRL and BRO before increasing again Tuesday late morning with gusts once again up to 30 kts.
PREV DISCUSSION. /issued 242 PM CST Mon Jan 18 2021/
SHORT TERM (Now through Tuesday Night): Zonal mid-level flow, surface high pressure over the southeastern CONUS, and developing low pressure in northeastern Mexico will favor southeasterly onshore flow, leading to warming temps and increased moisture through the short term. Low-level cloud cover will keep temperatures relatively mild overnight. The persistent southeasterly flow may also aid in the development of some patchy advection fog, mainly near the coast as dew points continue to increase over relatively cool ocean waters. Current thinking is that wind speeds will remain a bit too strong to preclude widespread fog development, but some very localized fog cannot be totally ruled out. For now, have opted to leave fog out of the forecast package due to relatively low confidence.
A frontal boundary dropping into the Southern Plains on Tuesday will help maintain southeasterly flow and moisture return, and also aid in the development in scattered showers. Guidance continues to hone in on western portions of the CWA for the heaviest rain and highest rain chances so have increased PoPs accordingly. Showers then continue into Tuesday night to cap off the short term.
LONG TERM (Wednesday through Monday): The general mid/upper split flow level pattern remains on track with the development of the upper closed low off the Baja CA coast and building of 500mb ridge over the Gulf. The pattern has slowed down by 12-24 hours with the anticipated low to lift out and weaken as it tracks across Texas Thursday night into Friday. A northern stream system to send surface high pressure south into Texas with weak low pressure and a surface cold front moving across South Texas Wednesday. Still uncertain on how far south and east this front may reach with GFS and EC not as certain as the NAM showing the front approaching the Lower RGV late Wednesday before stalling. In any case, the close proximity of the front or a surface trough will combine with abundant deep moisture keeping good chances for rain for much of the CWA Wednesday and Wednesday night. Uncertainty comes into play for Wednesday's high temperatures with the NAM the coolest dropping highs into the 50s for the western counties. The rest of the guidance maintains 60s for the west and 70s in the east. Will take a blend trending a bit on the cooler side.
The slower ejection of the Baja low may delay the retreat of the front back to the north and model guidance continues to suggest some rain chances lingering Thursday morning before southerly flow returns and warms up the afternoon. Next upstream Pacific trough is also slower to evolve and move east as the Gulf/Caribbean ridge is trending slightly stronger. This mean West Coast trough and Gulf ridge pattern should maintain a robust moist southerly flow and above normal temperatures for South Texas through the remainder of the Long term. Rain chances although not zero, look to be limited Friday through next weekend with next Sunday possibly the best next day for rainfall at this time.
MARINE:(Now through Tuesday Night): High pressure located over the southeastern CONUS and developing low pressure over northeastern Mexico maintain a tight pressure gradient over the coastal waters, and winds continue to increase. As a result, have issued another Small Craft Advisory for the nearshore Gulf Waters from 00z to 09z Tuesday, and extended the offshore advisory through 15z Tuesday. Small Craft Exercise Caution conditions continue over the Laguna Madre due to high winds. Winds will diminish slightly overnight. As mentioned above, there is some potential for patchy advection fog to occur over the Laguna Madre and portions of the nearshore waters as winds relax, and relatively warm and moist air flows over cooler ocean waters. Winds still look relatively strong to preclude any dense fog (one mile or less) concerns, but mariners should remain vigilant. Less than favorable marine conditions will last through the end of the short term due to moderate winds and elevated seas.
(Wednesday through Saturday) . Surface ridge settles over the Eastern Gulf mid to late in the week with low pressure situated over West Texas and NE Mexico. This should maintain a moderate to occasionally strong southeast to south flow. The persistent southerly fetch will also also aid in developing a long period south swell. Periodic Small Craft advisories are expected with strongest gradient later Thursday through next Saturday.
PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 66 76 63 75 / 0 20 50 50 BROWNSVILLE 66 78 65 76 / 0 20 50 50 HARLINGEN 64 78 63 75 / 0 20 50 50 MCALLEN 65 78 62 72 / 10 30 70 50 RIO GRANDE CITY 62 80 56 70 / 10 40 70 60 SOUTH PADRE ISLAND 66 74 67 70 / 0 20 50 40
BRO WATCHES/WARNINGS/ADVISORIES. TX . None. GM . Small Craft Advisory until 9 AM CST Tuesday for GMZ170-175.
Small Craft Advisory until 3 AM CST Tuesday for GMZ150-155.
This product is also available on the web at: HTTP://WEATHER.GOV/RGV
68-McGinnis/Aviation
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| PTIT2 - 8779770 - Port Isabel, TX | 0 mi | 58 min | SSE 13 G 18 | 68°F | 61°F | 1016.8 hPa | ||
| BZST2 | 3 mi | 58 min | SSE 15 G 18 | 67°F | 62°F | 1013.8 hPa | ||
| PCGT2 - 8779748 - South Padre Island CGS, TX | 3 mi | 58 min | SSE 16 G 18 | 67°F | 65°F | 1014.4 hPa | ||
| RLIT2 | 14 mi | 58 min | SSE 16 G 19 | 67°F | 67°F | 1013.7 hPa | ||
| PMNT2 | 36 mi | 58 min | 67°F | 64°F | 1014.7 hPa |
Wind History for Port Isabel, TX
(wind in knots) EDIT (on/off) Help| 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | |
| Last 24hr | SE | SE | E | SE G8 | SE | SE | SE | E | SE | SE | S | S | S | S G12 | S G19 | SE G23 | SE G24 | SE G25 | SE G24 | SE G23 | SE G21 | SE G18 | SE G18 | SE G17 |
| 1 day ago | SE | SE | SE | E | SE | E | NE | E | E | NE | N | E G9 | E G10 | E | E G9 | E | E G11 | E G11 | E G10 | E G12 | E G12 | E G11 | E | SE |
| 2 days ago | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W G6 | NW | N | N | NE | E | E G11 | E | E | E | SE | SE G10 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Port Isabel, Port Isabel-Cameron County Airport, TX | 9 mi | 59 min | SSE 16 | 10.00 mi | Fair | 69°F | 62°F | 78% | 1014.7 hPa |
| Brownsville, Brownsville / South Padre Island International Airport, TX | 16 mi | 59 min | SSE 15 | 10.00 mi | Mostly Cloudy | 70°F | 62°F | 76% | 1014.6 hPa |
Link to 5 minute data for KSPL
Wind History from SPL (wind in knots)
| 11 PM | -12 PM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | |
| Last 24hr | SE | S | S | S | S | S | S | W | SW | S | SW | SW | SW | N | E | NE | NE | E | E | E | E | E | E | Calm |
| 1 day ago | S | S | S | SW | NW | N | N | N | E | NE | E | E | SE | NW | S | S | S | Calm | Calm | SE | SE | SE | SE | SE |
| 2 days ago | SE | SE | SE | SE | S | S | S | SW | NW | NW | SW | SW | S | SW G21 | SW G18 | S | S | S | S | S | SW | SW | S | S |
Tide / Current Tables for Port Isabel, Texas
EDIT Weekend mode (on/off) (on/off) Help One Week of DataPort Isabel
Click for Map
Mon -- 02:11 AM CST 0.67 feet Low Tide
Mon -- 04:37 AM CST 0.69 feet High Tide
Mon -- 07:17 AM CST Sunrise
Mon -- 11:07 AM CST Moonrise
Mon -- 01:00 PM CST 0.12 feet Low Tide
Mon -- 06:01 PM CST Sunset
Mon -- 08:13 PM CST 0.79 feet High Tide
Mon -- 11:22 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:11 AM CST 0.67 feet Low Tide
Mon -- 04:37 AM CST 0.69 feet High Tide
Mon -- 07:17 AM CST Sunrise
Mon -- 11:07 AM CST Moonrise
Mon -- 01:00 PM CST 0.12 feet Low Tide
Mon -- 06:01 PM CST Sunset
Mon -- 08:13 PM CST 0.79 feet High Tide
Mon -- 11:22 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.4 | 0.5 | 0.7 | 0.7 | 0.8 | 0.8 | 0.7 | 0.6 |
Tide / Current Tables for Matamoros, Tamaulipas, Mexico
EDIT (on/off) Help One Week of DataMatamoros
Click for Map
Mon -- 01:27 AM CST 0.53 feet Low Tide
Mon -- 05:45 AM CST 0.63 feet High Tide
Mon -- 07:17 AM CST Sunrise
Mon -- 11:08 AM CST Moonrise
Mon -- 12:41 PM CST 0.08 feet Low Tide
Mon -- 06:03 PM CST Sunset
Mon -- 08:06 PM CST 0.72 feet High Tide
Mon -- 11:23 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:27 AM CST 0.53 feet Low Tide
Mon -- 05:45 AM CST 0.63 feet High Tide
Mon -- 07:17 AM CST Sunrise
Mon -- 11:08 AM CST Moonrise
Mon -- 12:41 PM CST 0.08 feet Low Tide
Mon -- 06:03 PM CST Sunset
Mon -- 08:06 PM CST 0.72 feet High Tide
Mon -- 11:23 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.6 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.4 | 0.5 | 0.6 | 0.7 | 0.7 | 0.7 | 0.6 | 0.5 |
Weather Map
(on/off) Help Weather Map
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
Ground Weather Radar Station
Gulf Stream Current
|
Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway. Disclaimer: 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 numerous 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. |