Monday, March25, 2019 L-36.com


Marine Weather and Tides
Port Mansfield, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:28AMSunset 7:45PM Monday March 25, 2019 6:48 PM CDT (23:48 UTC) Moonrise 11:44PMMoonset 9:58AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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:201903260300;;333965 Fzus54 Kbro 252027 Cwfbro Coastal Waters Forecast National Weather Service Brownsville Tx 327 Pm Cdt Mon Mar 25 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. Gmz130-132-135-260300- 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- 327 Pm Cdt Mon Mar 25 2019
Tonight..East winds 5 to 10 knots. A light chop on the bay. Areas of fog after midnight. Isolated showers after midnight.
Tuesday..Northeast winds 10 to 15 knots. A moderate chop on the bay. Patchy fog in the morning. Isolated showers through the day.
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.
Wednesday..East winds 10 to 15 knots. A moderate chop on the bay.
Wednesday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Thursday..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Thursday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
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 becoming south 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Saturday..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers and Thunderstorms.
Saturday night..Northeast winds 10 to 15 knots becoming north 15 to 20 knots after midnight. A moderate chop on the bay building to choppy after midnight. Chance of showers and Thunderstorms.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 327 Pm Cdt Mon Mar 25 2019
Synopsis..Light winds and low to moderate seas will prevail today ahead of a modest cold front. The front will move through the lower texas coastal waters early Tuesday morning, with northeast winds briefly becoming fresh before settling back to moderate. Seas will build to moderate from Tuesday afternoon through the end of the period as surface high pressure over the great lakes moves toward the northeast united states, causing winds to veer southeast by Thursday. Winds will gradually increase late in the week as pressures fall over the southern plains. Marginally strong winds and moderate to high seas will be possible on the gulf Saturday night.


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 252005
afdbro
area forecast discussion
national weather service brownsville tx
305 pm cdt Mon mar 25 2019
.Short term (now through Tuesday night): cloud cover associated
with a pre-frontal trough shear line has slowed warming a bit
today, so earlier had nudged MAX hour temps down a degree or two.

Weak cold front currently draped across south-central tx (per wpc
analysis) will sag through the CWA over the next 12-18 hours. Nam
is actually a bit slower than the GFS in this case. Initial wind-
shift to northerly appears to reach the northern zones between 09-
12z early tomorrow morning with winds then quickly veering back
to ne. Ahead of the front, low temp dewpoint spreads along with
light pre-frontal winds should lead to some patchy mist fog from
late tonight through mid-morning tomorrow when the NE winds pick
up a bit and mix out the fog. Went with areas of fog wording for
the coastal zones.

Front has doesn't have too much to work with in terms of upper-level
support, with a dry wnw flow ahead of a ridge over the desert sw
already established. Best column rh pools over the western cwa,
along the rio grande, against the higher terrain. Showers should be
light. Forecast charts and soundings show some instability with
little CIN remaining around mid-afternoon tomorrow, but too much dry
air aloft would seem to be entrained into any updrafts, so have
removed any thunder mention. Front will be slow-moving, so chance
pop's will drift southward through the day, possibly lingering over
far western areas into the evening.

As far as temps go, lows tonight expected to be in the mid-60s
pretty much everywhere. Airmass behind the front won't be much
cooler, but cloud cover and NE flow off the gulf should still yield
temps 3-7 degrees or so cooler than today, most pronounced over the
n. Ranchlands.

.Long term (Wednesday through Monday):the long term could end up
being a tale of two seasons. The first half seeing a warming trend
with increasing southerly winds as mid level high pressure
traverses the state. The second half may see a late season strong
cold front with a shot of thunderstorms late Saturday Sunday
followed by a few days of below normal temperatures.

Wednesday looks to be a transition day in wake of Tuesday's cold
front as winds turn southeast with surface high pressure tracking
east. Temperatures rebound a few degrees approaching normal, maybe
more if the clouds decrease and the Sun makes a longer appearance.

Thursday and Friday heights falls across the west with the departing
mid-level ridge and approaching pacific trough will allow for
southerly flow to increase with the pressure gradient peaking
Friday. The stronger south winds will push temperatures and dew
points up with both the gfs ECMWF guidance in tandem.

As for the next front models continue to show similarities in the
surface features but differ in the placement of the mid upper level
trough. Even though confidence is increasing timing and strength of
the front is still uncertain this far out. The front could move
through as early as Saturday afternoon or passing through the lower
valley Sunday morning. Look for the potential for a line of
thunderstorms along the front with much cooler temperatures as a
1035+mb high moves into oklahoma. Latest ec guidance is much cooler
showing only a high of 59 degrees for brownsville (gfs only 71) next
Sunday wont go that cool just yet but a model blend of deterministic
and ensemble lowers temperatures 10-14 degrees below normal next
Sunday. Both the GFS ec show some energy lingering west of the
region after the frontal boundary so affects of the front, cooler and
wetter, may linger into early next week. This may be no april
fools front.

.Marine:(now through Tuesday night): light winds and low-to-
moderate seas will prevail tonight ahead of a modest cold front.

This front is expected to move through the lower texas coastal
waters early Tuesday morning, with northeast breezes briefly
becoming fresh before settling back to moderate. Seas build to
moderate levels Tuesday afternoon. Locally dense sea fog may be a
concern tonight, especially over the relatively cooler nearshore
waters (still at 66-67f). Fog should break up once the
aforementioned NE breezes kick in Tuesday morning.

Wednesday through Friday: moderate onshore flow Wednesday
strengthens Thursday and Friday as gulf high pressure interacts with
low pressure deepening over west texas. The gradient may peak
Friday, could remain strong into Saturday, with small craft
advisories looking more likely for the laguna madre with the
stronger winds shifting east Friday night. Next cold front surge may
be as early as late Saturday afternoon or Sunday morning.

Preliminary point temps pops
Bayview port isabel 65 75 63 76 10 20 10 10
brownsville 66 78 63 80 10 20 10 10
harlingen 66 78 63 80 10 20 10 10
mcallen 67 79 64 81 20 30 10 10
rio grande city 67 78 64 79 20 40 10 10
south padre island 64 71 63 72 10 20 10 10

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
53... Short term
5... Long term


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 mi37 min 74°F 70°F1017.7 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 18 mi37 min ESE 12 G 14 74°F 76°F1017.7 hPa
RLIT2 20 mi37 min E 13 G 15 74°F 80°F1017.6 hPa
BZST2 35 mi37 min E 8.9 G 9.9 71°F 68°F1017 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 35 mi37 min E 8.9 G 11 73°F 1018.1 hPa
PTIT2 - 8779770 - Port Isabel, TX 35 mi37 min E 11 G 14 73°F 71°F1017.8 hPa
42020 - Corpus Christi, TX 50NM Southeast of Corpus Christi, TX 48 mi39 min ESE 7.8 G 9.7 72°F 71°F1017.7 hPa

Wind History for Rincon Del San Jose, TX
(wind in knots)    EDIT      (on/off)   Help
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
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last
24hr
SE19
SE14
SE11
SE12
SE10
SE12
SE10
SE9
SE10
SE6
S6
SE5
SE8
SE7
SE6
SE5
SE7
SE6
SE6
SE10
SE12
SE13
E14
G17
E12
1 day
ago
SE17
SE12
E14
SE17
SE18
SE14
G19
SE11
SE11
S7
SE7
SE6
SE9
SE9
SE8
SE7
SE8
SE10
SE14
SE16
SE15
SE19
SE16
G21
SE21
SE21
2 days
ago
SE18
SE17
SE16
SE15
SE15
SE15
SE15
SE15
SE14
G17
SE12
SE10
SE11
SE10
SE11
SE9
SE12
G15
SE15
SE13
G17
SE19
G24
SE18
G22
SE21
G26
SE21
SE16
SE17
G22

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX26 mi57 minE 1510.00 miA Few Clouds80°F69°F69%1016.6 hPa

Wind History from HRL (wind in knots)
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
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last 24hrSE14SE12SE8SE7SE7SE6SE7SE6SE4SE5SE6SE5SE5E5SE4SW8S7SW6S7S53NE9E14E15
1 day agoSE12SE11SE12SE9SE11SE13S8SE4SE6S6S7SE6SE3CalmS8S9S16S14S16
G23
S14SE14
G24
SE18
G24
SE15
G21
SE16
2 days agoSE15
G23
SE14SE10SE10SE8SE8SE9SE11SE10SE8SE5SE7SE8E4SE9SE15S19
G23
SE13SE15S15S15SE19SE15SE18

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
   EDIT   RT Ports Option   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 (19,4,5,8)
      (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.