Thursday, July18, 2019 L-36.com


Marine Weather and Tides
Port Mansfield, TX

Version 3.4
NOTICE
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 6:48AMSunset 8:25PM Thursday July 18, 2019 12:07 PM CDT (17:07 UTC) Moonrise 8:56PMMoonset 7:14AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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
GMZ132 Expires:201907182100;;256488 Fzus54 Kbro 181520 Cwfbro Coastal Waters Forecast National Weather Service Brownsville Tx 1020 Am Cdt Thu Jul 18 2019 Lower Texas Coastal Waters From Baffin Bay To The Mouth Of The Rio Grande Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz130-132-135-182100- 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- 1020 Am Cdt Thu Jul 18 2019
.small craft should exercise caution...
Rest of today..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay building to choppy in the afternoon.
Tonight..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Friday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay building to choppy in the afternoon.
Friday night..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Saturday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay building to choppy in the afternoon.
Saturday night..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Sunday..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Sunday night..Southeast 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. Slight chance of showers and Thunderstorms.
Monday..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 and Thunderstorms.
Monday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Slight chance of showers and Thunderstorms.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 1020 Am Cdt Thu Jul 18 2019
Synopsis..Generally moderate to sometimes breezy southeast winds and moderate seas are expected through for next several days.


7 Day Forecast for Marine Location Near Port Mansfield, TX
   Hourly   EDIT   Help
location: 26.54, -97.4     debug


Area Discussion for - Brownsville, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 kbro 181650 aab
afdbro
area forecast discussion... Updated
national weather service brownsville tx
1150 am cdt Thu jul 18 2019

Discussion Updated for latest aviation discussion below.

Aviation The skies are sunny across the CWA today except for
developing low cloud streets over the southeast third of the area.

Winds are breezy and gusty from the south southeast with a weak
sea breeze starting to show up. Conditions areVFR. A few tiny
showers are over the gulf to the south and should not be an issue.

Aloft, a broad mid level ridge lies laterally over the region,
with stolid surface high pressure ridging from the atlantic into
and across the northern gulf to the northwest gulf. Central high
plains lower pressure this afternoon and Friday afternoon will
help maintain a moderate gradient, with winds lowering at night.

The pattern will stay much the same the next 24 hours, so won't
change course on the current TAF thinking. Conditions should
remain mainlyVFR with mostly clear skies tonight, along with
light southeast winds. Only a few low clouds may develop after
midnight, but not looking at degraded conditions. Southeast winds
will increase again Friday as diurnal heating gets going, becoming
moderate to breezy and gusty along the coast and for the taf
sites. Low cloud streets will again set up over the southeast
corner with scattered to brokenVFR ceilings in the afternoon. A
weak sea breeze will be possible again Friday afternoon, but the
atmosphere will be drier, so any sea breeze showers will be very
limited.

Prev discussion issued 626 am cdt Thu jul 18 2019
discussion... Updated for latest aviation discussion below.

Aviation... Very few changes to the previous issuance of tafs.VFR
conditions are forecast through the next 24 hours with breezy winds
during the daylight hours and lighter winds at night. Convection is
not anticipated at the aerodromes.

Prev discussion... Issued 350 am cdt Thu jul 18 2019
short term (today through Friday): kbro doppler radar shows
isolated streamer showers occurring over the gulf of mexico waters
at this time. Unfortunately, this will likely be the only
precipitation that occurs within the bro cwfa during the short
term forecast period, with 500 mb high pressure in control and
maintaining precipitable water values near a relatively paltry 1.5
inches. With the mid-level high also helping to produce limited
cloud cover in addition to the dry weather, above normal daytime
high overnight low temperatures are also anticipated.

Long term (Friday night through Wednesday): for the long term,
temperatures are expected to return to around climatological
normal as local 500 mb heights and 1000-500 mb thicknesses
gradually lower as a weakness develops within the upper level
ridging pattern across the northwestern gulf of mexico. An
embedded impulse or two within the upper level flow over the gulf
of mexico could allow for some pockets of moisture and mid-to-
high level clouds aloft. Additionally, a cold front is expected to
advance into central texas early next week. This will help to
diminish the wind speeds across the region as a result of a
relaxed pressure gradient at the surface. Sea breeze convection
will be expected to return to the forecast starting early next
week as a result of the lighter surface winds and moisture levels
aloft. The GFS is slightly wetter than the ECMWF for early to
middle of next week as it has the front making it further south
compared to the ecmwf. With the uncertainty, for now, I will
continue to keep pops around or below 10% into Sunday before
introducing 20 to 30% pops in the forecast through the rest of
the period beginning Sunday night into Monday.

The latest outlook from the national hurricane center keeps the
tropical atlantic caribbean gulf of mexico quiet through day 5.

Marine (now through Friday): buoy 42020 reported south-southeast
winds around 16 knots gusting to around 19 knots with seas
slightly over 3.5 feet with a period of 6 seconds at 150 cdt 650
utc. Winds over the laguna madre will be strong enough to warrant
small craft exercise caution there today and tomorrow. Marine
observation platforms will need to be monitored closely to make
sure winds don't slip into small craft advisory for winds
criteria. Meanwhile, on the gulf of mexico waters, generally
moderate winds and seas are anticipated. However, small craft
exercise caution for winds cannot be entirely ruled out.

Friday night through Wednesday: moderate onshore winds and seas
will continue for the start of the long term. This could result in
small craft exercise caution wording on the bay for Saturday
afternoon. Expect for the winds to diminish and for seas to
gradually subside through early to middle of next week as the
pressure gradient weakens in response to a frontal boundary
sliding into central texas. Rain and thunderstorm chances,
however, do increase and may result in localized higher winds and
seas at times.

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
54 55


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 2 mi61 min 86°F 86°F1016 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 18 mi55 min SSE 18 G 21 85°F 86°F1015.7 hPa
RLIT2 20 mi55 min SE 16 G 19 85°F 86°F1015.5 hPa
BZST2 35 mi55 min SSE 8.9 G 12 80°F 74°F1015.8 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 35 mi55 min SSE 13 G 15 83°F 1016.8 hPa
PTIT2 - 8779770 - Port Isabel, TX 35 mi55 min SE 15 G 19 85°F 80°F1016.4 hPa
42020 - Corpus Christi, TX 50NM Southeast of Corpus Christi, TX 48 mi47 min SSE 16 G 19 85°F 85°F1016.3 hPa80°F

Wind History for Rincon Del San Jose, TX
(wind in knots)    EDIT      (on/off)   Help
-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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last
24hr
SE20
SE19
G24
SE21
G27
SE21
G26
SE23
SE20
G26
SE20
SE19
G23
SE17
SE16
SE14
SE14
G17
SE15
G19
SE15
SE17
SE17
SE13
SE11
SE12
G15
SE12
SE12
SE16
SE17
G21
1 day
ago
SE18
SE18
G22
SE21
SE21
SE21
G26
SE21
SE20
SE19
G23
SE19
SE15
SE15
SE14
SE16
SE15
SE14
SE14
G17
SE12
SE11
SE12
G15
SE11
G15
SE11
G15
SE13
SE16
SE18
G22
2 days
ago
SE14
G17
SE18
SE22
SE20
G27
SE21
G26
SE22
SE21
SE19
G23
SE19
SE18
SE20
SE17
SE14
SE16
SE16
SE16
SE12
SE14
SE13
G16
SE14
G17
SE15
SE18
SE19
SE18
G22

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX26 mi75 minS 1610.00 miPartly Cloudy92°F75°F58%1015.1 hPa

Wind History from HRL (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
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
Last 24hrSE14SE15
G20
SE15
G20
SE15--SE22
G26
SE20
G26
SE13SE12SE10SE8SE9SE10SE11SE10S10S8SE7SE6SE6S13S17
G21
S16S16
1 day ago----SE16SE15SE15SE12SE10SE15SE10SE8SE10------------SE10--SE10S15S15S15SE15
2 days agoS12
G18
S14
G19
SE16
G20
S16
G21
SE16
G24
SE19SE13SE14SE11SE11SE10SE9SE8SE6S5SE4S7S7SE10SE9SE13S15SE16S16

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Queen Isabella Causeway (west end), Texas
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of SouthCentralPlains    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 (13,3,4,5)
      (on/off)   Help

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

Gulf Stream Current


Ad by Google

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.