Marine Weather and Tides
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:19AM||Sunset 8:14PM||Monday May 29, 2017 10:06 AM CDT (15:06 UTC)||Moonrise 9:25AM||Moonset 11:13PM||Illumination 17%|
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|GMZ355 Coastal Waters From Freeport To The Matagorda Ship Channel Out 20 Nm-coastal Waters From High Island To Freeport Out 20 Nm- 924 Am Cdt Mon May 29 2017 |
.gale warning in effect until 11 am cdt this morning...
Rest of today..Southeast winds 20 to 30 knots with gusts to 35 knots...decreasing to 15 to 25 knots in the afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet. Showers and Thunderstorms likely in the morning...then a chance of showers and Thunderstorms in the afternoon.
Tonight..Southeast winds 15 to 20 knots decreasing to around 10 knots after midnight. Seas 3 to 5 feet. A chance of showers and Thunderstorms.
Tuesday..Southeast winds around 10 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely in the morning, then a chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Wednesday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and Thunderstorms.
Thursday..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Friday..Southeast winds 10 to 15 knots. Seas 4 feet. A chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
|GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 924 Am Cdt Mon May 29 2017 |
Synopsis for high island to matagorda ship channel out 60 nm.. Periods of showers and Thunderstorms will diminish in coverage later today. Strong gusty winds up to gale force will subside through midday...however advisory conditions are expected to persist through the afternoon. Persistent moderate southeasterly winds are expected from Tuesday through Saturday along with periods of showers and Thunderstorms. An area of disturbed weather may develop near the lower texas coast Saturday and track into the region early next week.
7 Day Forecast for Marine Location Near Jamaica Beach, TXHourly EDIT Help
Area Discussion for - Houston/Galveston, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 khgx 291157|
area forecast discussion
national weather service houston galveston tx
657 am cdt Mon may 29 2017
Still some stratiform rain and embedded showers and thunderstorms
going on west southwest of sgr lbx this morning likely in response
to the MCS moving east through the northwest gulf. Ceilings of 200
ft briefly possible around cll uts cxo otherwise mainlyVFR.
Showers should pop up late this morning around the area and
transition over to tsra around noon or a little later. Low
confidence on where specifically so will vcsh vcts it for now.
Second issue is gradient wind event near the coast with meso-high
over the far coastal waters that should subside in the next couple
Another update to hoist gale warning for the gulf waters and sca
for bays as gradient wind event roars away... By 15z expect winds
to have dropped off dramatically from the current gusts of 35-45
Prev discussion issued 537 am cdt Mon may 29 2017
meso-high driving gradient winds across the coastal waters and
into the coast and bays. Winds of 20-30kts gusts to 40 for the
next few hours. Winds should weaken as storms well offshore
weaken. Will have to watch comma head rotating in from the west
and could clip or aggravate the already strong winds as it pushes
east. Have hoisted SCA for all waters through 10 am and special
marine warnings through 7 am.
prev discussion... Issued 419 am cdt Mon may 29 2017
light to moderate rainfall lingers across southeast texas this
morning behind an outflow boundary that has since pushed off the
upper texas coast. Regional radar mosiac shows most of the
thunderstorm activity this morning relegated to the western gulf
of mexico, with an expansive thunderstorm complex stretching from
corpus christi to harlingen slowly pushing to the east.
Extrapolation of current storm movement places this complex into
the western waters sometime between 5 and 7 am cdt. At least
through the morning hours, this complex will be the primary driver
for rain chances for the region as its parent shortwave trough
lifts towards the region, pushing the complex and associated
surface low mesoscale convective vortex into it. What remains to
be seen at this time is how far north rain chances will extend
inland this morning as the outflow approaching the south texas
thunderstorm complex may result in enough low level convergence
off the coast to block inflow and cut off rain chances farther
inland. With mid and upper level steering flow from the southwest
concerned that there may be some expansion or movement to the
northeast into the matagorda bay area and have maintained 60-70
pops for this morning as a result. However, if this complex
appears to remain offshore an update may be needed later this
morning to lower rain chances.
With most activity along the coast and across the waters early this
morning, expect to see at least a brief break in rain chances but
daytime heating will result in scattered shower and thunderstorm
development across the region mid to late morning and into the
afternoon. Expect greatest coverage to occur along several of the
remnant boundaries draped across the region. Surface analysis
reveals that yesterday's cold front remains stalled well north of
the interstate 10 corridor, stretching from san antonio to hearne
to athens. The kgrk radar this morning is also showing several
moisture "fine lines" across the brazos valley, indicative of|
remnant outflow boundaries from last night's storms. Other
unidentified boundaries may also exist farther south of these
locations. Limited shear (less than 20 knots) present through
early afternoon and much less steep lapse rates than yesterday
(5.5-6.5 c km) will result in a much lower severe weather threat
today, but with some dry air present between the surface and 600
mb on forecast soundings cannot rule out gusty winds in stronger
convection. 1.7-2 inch precipitable water values today (higher
than the 75th percentile for this time of year) will also mean the
locally heavy rain threat will continue, especially along any of
the aforementioned boundaries. Subsidence from the passing
shortwave trough should result in another break in the rain by
this evening and into tonight, with diurnal heating and
precipitable water values in the 1.6-1.8 inch range on Tuesday
resulting in scattered to numerous showers and thunderstorms
capable of locally heavy rain. Expect highs to range in the upper
70s to low 80s today, warming into the low to mid 80s on Tuesday.
Periods of showers and thunderstorms will continue across the
region Wednesday into the weekend as a series of disturbances now
near the gulf of alaska on early morning water vapor imagery drop
to near baja california and translate east across texas. Elevated
precipitable water values in the 1.6-1.9 inch range will mean the
threat for locally heavy rainfall will persist each day, with rain
chances likely being enhanced during the daytime hours from
heating. Expect high temperatures to remain in the low to mid 80s
through the end of the work week. Dry weather may not return to
the forecast until early to mid next week as shortwave ridging
attempts to build into the region.
stormy weather this morning over the coastal waters. Outflow
pushed southward through the region bringing gusty conditions
(20-45kt) and has collided with boundary offshore and being
intercepted by incoming MCS from crp area. Hoisted a SCA through
10 for these strong winds and elevated seas but by 8-10 am expect
that conditions should be improving except for all but the far
coastal waters where storms will probably be the most active-or
just south of there... Will need to keep an eye out for meso high
developing and ramping up winds.
Otherwise easterly winds becoming southeasterly this afternoon
and overnight gradually increasing to 10 to 15 knots and then
persisting through Saturday. As moist to very moist conditions
flowing into and through the region expecting showers and
thunderstorms to remain a threat.
Ecmwf still painting the scenario of fairly intense low pressure
system developing in the western gulf (Saturday) and slowly moving
to near galveston (Monday morning) which would have big impacts
on the current forecast. Have trended the forecast toward the gfs
but will be watching closely to see of the GFS or the ECMWF blink.
Preliminary point temps pops
College station (cll) 80 69 84 69 85 40 30 40 20 50
houston (iah) 81 70 84 71 85 50 30 60 30 50
galveston (gls) 80 74 81 76 83 60 50 60 30 50
Hgx watches warnings advisories
Gm... Small craft advisory until 11 am cdt this morning for the
following zones: galveston bay... Matagorda bay.
Gale warning until 11 am cdt this morning for the following
zones: coastal waters from freeport to the matagorda ship
channel out 20 nm... Coastal waters from high island to
freeport out 20 nm... Waters from freeport to the matagorda
ship channel from 20 to 60 nm... Waters from high island to
freeport from 20 to 60 nm.
aviation marine... 45
Weather Reporting StationsEDIT (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|
|GRRT2||9 mi||48 min||S 13 G 17||76°F||81°F||1017 hPa|
|LUIT2||11 mi||48 min||SSE 16 G 26||75°F|
|GTOT2||13 mi||48 min||76°F||81°F|
|GNJT2 - 8771341 - Galveston Bay (North Jetty), TX||18 mi||54 min||S 22 G 25||80°F||1016.2 hPa|
|EPTT2 - 8771013 - Eagle Point, TX||20 mi||48 min||SW 18 G 21||76°F||80°F||1016.8 hPa|
|FCGT2 - 8772447 - USCG Freeport, TX||24 mi||48 min||S 21 G 27||76°F||80°F||1016.8 hPa|
|KXIH||25 mi||51 min||SW 26 G 32||75°F||70°F|
|42035 - GALVESTON 22NM East of Galveston, TX||31 mi||76 min||S 21 G 25||77°F||79°F||7 ft||1014.8 hPa (+5.5)||69°F|
|MGPT2 - 8770613 - Morgans Point, TX||33 mi||48 min||S 8 G 11||77°F||81°F||1016.7 hPa|
|RLOT2 - 8770971 - Rollover Pass, TX||33 mi||48 min||SSW 8.9 G 15||76°F||78°F||1016.8 hPa|
|NCHT2 - 8770777 - Manchester, TX||39 mi||48 min||WNW 1.9 G 1.9||72°F||78°F||1017 hPa|
|LYBT2||39 mi||48 min||NW 2.9 G 4.1||71°F||81°F||1016.1 hPa|
|HIST2||42 mi||54 min||S 5.1 G 8.9||77°F||80°F||1017 hPa|
|SGNT2||45 mi||48 min||SSE 20 G 26||76°F||82°F||1015.9 hPa|
Wind History for Galveston Pleasure Pier, TX(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Galveston, Scholes Field, TX||8 mi||74 min||S 21 G 28||10.00 mi||Light Rain and Breezy||76°F||70°F||82%||1016 hPa|
Wind History from GLS (wind in knots)
|1 day ago||S||S||S||S||S||S||S||S||SE||SE||SE||SE||S||S||S||S|
|2 days ago||S||S||S||S||S||SE||SE||SE||S||S||S||SE||SE||S||S||S||S||S||S||S||S||S||S||S |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Jamaica Beach |
Click for Map
Mon -- 04:40 AM CDT -0.26 feet Low Tide
Mon -- 06:21 AM CDT Sunrise
Mon -- 10:25 AM CDT Moonrise
Mon -- 12:12 PM CDT 1.18 feet High Tide
Mon -- 08:13 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Bolivar Roads |
Click for Map
Mon -- 12:30 AM CDT -2.22 knots Max Ebb
Mon -- 05:11 AM CDT 0.00 knots Slack
Mon -- 06:20 AM CDT Sunrise
Mon -- 08:42 AM CDT 2.16 knots Max Flood
Mon -- 10:24 AM CDT Moonrise
Mon -- 03:49 PM CDT -0.00 knots Slack
Mon -- 08:12 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of SouthCentralPlains EDIT
Wind Forecast for Houston/Galveston, TX (11,2,3,4)(on/off)  Help
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