Friday, December6, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Rio Hondo, 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 7:03AMSunset 5:40PM Friday December 6, 2019 12:01 AM CST (06:01 UTC) Moonrise 2:22PMMoonset 1:56AM Illumination 69% Phase: Waxing Gibbous; Moon at 9 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
    EDIT      (on/off)   Help
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- 930 Pm Cst Thu Dec 5 2019
Rest of tonight..South winds 5 to 10 knots. A light chop on the bay. Patchy fog after midnight.
Friday..Southwest winds around 5 knots shifting north in the afternoon. Smooth on the bay. Patchy fog in the morning. Visibility 1 nm or less in the morning.
Friday night..North winds 10 to 15 knots. A moderate chop on the bay.
Saturday..Northeast winds 5 to 10 knots. A light chop on the bay.
Saturday night..East winds 5 to 10 knots becoming southeast after midnight. A light chop on the bay subsiding to smooth after midnight.
Sunday..South winds 5 to 10 knots. A light chop on the bay.
Sunday night..South winds 5 to 10 knots increasing to 10 to 15 knots after midnight. A light chop on the bay building to a moderate chop after midnight.
Monday..South winds 15 to 20 knots. Choppy on the bay.
Monday night..South winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
Tuesday..North winds 15 to 20 knots. Choppy on the bay. Chance of showers.
Tuesday night..North winds 10 to 15 knots. A moderate chop on the bay. Chance of showers.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 930 Pm Cst Thu Dec 5 2019
Synopsis..The pressure gradient will increase slightly across the western gulf of mexico tonight before a weak cold front moves through the coastal waters Friday. Moderate northerly winds behind the front will generate higher seas offshore the lower texas coast Friday night through Saturday. Surface high pressure across the northwest gulf of mexico Saturday will move eastward Saturday night allowing an onshore flow to return across the lower texas coast Sunday.


7 Day Forecast for Marine Location Near Rio Hondo, TX
   Hourly   EDIT   Help
location: 26.26, -97.53     debug


Area Discussion for - Brownsville, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS64 KBRO 060559 AAB AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 1159 PM CST Thu Dec 5 2019

DISCUSSION. Dense fog advisory has been issued for all of Deep South Texas until 9 AM Friday.

PREV DISCUSSION. /issued 1141 PM CST Thu Dec 5 2019/

DISCUSSION . Updated for latest aviation discussion below.

AVIATION . Fog is becoming dense across areas of Cameron County with KBRO and KHRl down to VLIFR due to fog or low ceilings. Expecting KMFE to see cigs and vsby to drop rapidly as winds continue to diminish. Light winds and sufficient surface moisture and the approach of a cold front should allow for fog and low ceilings to spread over all of Deep South Texas and the RGV overnight and persist through the morning. Once the IFR/VLIFR conditions set in at RGV airports the should persist through at least 14Z Friday. Brief periods of MVFR are possible with some lower probabilities of improvement in KBRO and KHRL before sunrise but with light winds expected overnight there is low confidence of this improvement. A weak dry cold front moves through the region late morning or early afternoon with flight categories improving to VFR and winds turning NW.

PREV DISCUSSION . /issued 553 PM CST Thu Dec 5 2019/

DISCUSSION . Updated for latest aviation discussion below.

AVIATION . Expect VFR conditions to prevail across the area this evening. Winds will likely go light and variable overnight ahead of an approaching front. The high dewpoints and light winds will combine to set the stage once again for another fog event for much of the region. This will likely result in another round of IFR/VLIFR conditions for the RGV airports. The best opportunity of the densest fog is expected between 09-15Z Friday. MVFR/VFR conditions should then return to the region by 18Z Friday as the daytime heating and dry air advection increases after the frontal passage.

PREV DISCUSSION . /issued 255 PM CST Thu Dec 5 2019/

Another Foggy Start Expected on Friday .

SHORT TERM (Tonight through Friday Night): Broad 500 mb ridging will maintain pretty warm temperature pattern over the RGV for tonight. A strong 500 mb short wave will then move over the broad ridging moving into the southern Plains States late tonight into Fri. This will usher through a fairly weak cold front through the RGV early Fri. The surface flow will likely go light and variable overnight ahead of this approaching front. This will combine with the increasing surface dewpoints to set the stage for another fog event for much of the region. The GFSLAMP, MAV, MET and SREF guidance all indicate some potential for additional fog late tonight through early Friday morning. The short range model sets also indicate a strong signal for the potential for dense fog during the pre-dawn hours and past sunset due to the light and variable surface wind flow and dewpoints expected to reach into the mid 60s by sunrise Fri. So Dense Fog Advisories will once again be a possibility late tonight and early Fri morning.

Any fog that forms overnight will quickly dissipate later in the morning Fri as the surface flow shifts around from the N-NW and drier air filters into the region. The combination of the clearing skies and abundant sunshine should allow the temps to warm up nicely tomorrow afternoon with low 80s possible once again. This drier air in addition to the weak CAA spreading over the region Fri Night should lower down temps quite a bit. The short range MET/MAV and ECMWF temps look reasonable and will stick close to a blend of these through Fri Night.

The influx of drier air tomorrow afternoon and tomorrow night will seriously reduce the fog potential for the RGV.

Since overall deep layer moisture advection is pretty limited with the upcoming fropa, will not include any serious pops for the RGV through Fri Night.

LONG TERM (Saturday through Thursday): The upcoming weekend looks great with generally dry WNW flow across the region. At the surface, as high pressure moves east of the Mississippi River early Sunday, low level flow will transition to a more south easterly direction helping initiate a gradual warming/moistening trend across the region into early next week.

By early Monday, a deepening wave across the western states will begin to slide eastward. Given the magnitude of the wave, expect this upcoming frontal boundary to be a little stronger than the previous front. Out ahead of the front on Monday, expect breezy conditions to take shape, especially across the lower and mid RGV. The front should push through the region during the day on Tuesday.

Globals are not in agreement with some variables from Tuesday onward. First, the GFS blasts the front through the region with only rain chances along or east of the Lower TX Coastline. The ECMWF is much wetter with QPF showing up as far inland as Nuevo Leon. Kept POPs limited for this time until better agreement takes shape. POPs areawide do increase some going from mid to late week as the Globals do show a coastal trough developing. With expected abundant cloud cover and POPs due to isentropic upglide mid to late week, temperature confidence beyond Wednesday is below average. For the sake of continuity, didn't change much since the last package, however, if trends continue with the coastal troughing, temperatures will probably be lower than currently progged.

MARINE (Tonight through Friday Night): The light wind regime and elevated dewpoint values ahead of the next cold front will allow for some patchy marine fog especially across the Laguna Madre late tonight into tomorrow morning. However, will not include any mention of dense marine fog at this time since this is mainly a radiational event for the inland areas. Otherwise light surface winds will maintain fairly low seas for both the Bay and Gulf waters through Fri Night. So no SCA conditions expected through Fri Night.

(Saturday through Thursday): Marine conditions will be improving as the long term starts. Favorable marine conditions are then anticipated through the weekend before quickly declining on Monday as winds and seas approach SCA thresholds ahead of the next cold frontal boundary. Just prior to the front, winds and seas will subside a bit as pressure gradient relaxes, however, this will be only temporary as winds and seas behind the front begin to exceed SCA thresholds once again. In fact, winds late Tuesday and early Wednesday may gust up to Gale force at times.

Confidence decreases slightly beyond midweek with subtle differences in forecast guidance. For the moment, it appears a coastal trough will develop keeping winds and seas elevated. In fact, a prolonged SCA may be possible from Tuesday through as late as Friday depending on how quickly the trough departs/weakens.

BRO WATCHES/WARNINGS/ADVISORIES. TX . Dense Fog Advisory until 9 AM CST Friday for TXZ248>257-351-353.

GM . None.

This product is also available on the web at: HTTP://WEATHER.GOV/RGV

59/99


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMNT2 21 mi49 min 71°F 72°F1016.2 hPa
PTIT2 - 8779770 - Port Isabel, TX 22 mi49 min SE 4.1 G 5.1 70°F 70°F1016.3 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 23 mi49 min SSE 5.1 G 5.1 70°F 1015.5 hPa
BZST2 24 mi49 min SSE 6 G 7 71°F 69°F1014.6 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 38 mi49 min SSE 9.9 G 12 71°F 71°F1015.6 hPa

Wind History for Port Isabel, TX
(wind in knots)    EDIT      (on/off)   Help
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
-12
PM
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
SE3
SE3
E1
SE2
SE2
SE2
SE2
SE5
--
SW4
SW3
S4
SE4
NE7
E7
G10
E8
E10
SE11
SE9
SE6
SE8
G11
SE6
S3
1 day
ago
SE2
SE1
S6
--
--
NW1
N2
N2
N2
SW3
NW5
NW3
NW6
G9
NW4
N2
NE4
N6
N8
N7
G10
NE5
NE4
E5
E4
SE3
2 days
ago
N3
NE2
G7
N2
NE2
E4
SE6
SE8
SE12
SE9
G12
SE10
G13
SE10
E9
E9
SE9
SE9
SE5
SE3
SE2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX8 mi69 minSSE 52.00 miFog/Mist70°F69°F97%1016 hPa
Port Isabel, Port Isabel-Cameron County Airport, TX12 mi68 minN 00.25 miFog67°F66°F97%1015.9 hPa

Link to 5 minute data for KHRL

Wind History from HRL (wind in knots)
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
12
AM
Last 24hrCalmSE3SE6SE3CalmSE3SW4CalmCalmS5S5CalmS6
G17
4S7E11SE12SE13SE11SE7SE7SE4S5S7
1 day agoS3CalmCalmCalmNE3CalmNE3N4NW3N7N64CalmCalmSE4E10E11E9E7E4S3CalmCalmSE4
2 days agoCalmCalmE3E3E3NE4CalmCalmE3SE6S10S11S9S5SE8E10E11E8SE8SE5SE5SE3S4SE5

Tide / Current Tables for Port Isabel, Texas
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Port Isabel
Click for Map
Fri -- 01:55 AM CST     Moonset
Fri -- 06:30 AM CST     0.69 feet Low Tide
Fri -- 07:02 AM CST     Sunrise
Fri -- 12:47 PM CST     0.94 feet High Tide
Fri -- 02:21 PM CST     Moonrise
Fri -- 05:21 PM CST     0.82 feet Low Tide
Fri -- 05:37 PM CST     Sunset
Fri -- 11:11 PM CST     1.12 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
1.21.110.90.80.70.70.70.70.80.80.90.90.90.90.90.80.80.80.90.911.11.1

Tide / Current Tables for Port Isabel, Texas (2)
   EDIT      (on/off)   Help   One Week of Data
Port Isabel
Click for Map
Fri -- 01:02 AM CST     1.09 feet High Tide
Fri -- 01:55 AM CST     Moonset
Fri -- 06:25 AM CST     0.49 feet Low Tide
Fri -- 07:02 AM CST     Sunrise
Fri -- 01:46 PM CST     0.87 feet High Tide
Fri -- 02:21 PM CST     Moonrise
Fri -- 05:10 PM CST     0.64 feet Low Tide
Fri -- 05:37 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
1.11.110.90.70.60.50.50.50.60.70.70.80.90.90.80.70.60.60.70.70.80.91

Weather Map
       (on/off)   Help Weather Map
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 Brownsville, TX (1,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Brownsville, TX
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. 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. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines 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 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.