Monday, August19, 2019 L-36.com


Marine Weather and Tides
Bacliff, TX

Version 3.4
NOTICE
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 6:49AMSunset 7:58PM Monday August 19, 2019 9:29 AM CDT (14:29 UTC) Moonrise 9:35PMMoonset 9:18AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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
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GMZ335 Galveston Bay- 340 Am Cdt Mon Aug 19 2019
Today..South winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning. A chance of Thunderstorms late in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Tonight..South winds 5 to 10 knots becoming southwest after midnight. Bay waters smooth. A slight chance of showers after midnight.
Tuesday..Southwest winds around 5 knots becoming south in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Tuesday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers after midnight.
Wednesday..South winds around 5 knots becoming southeast in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Thursday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Friday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Friday night..South winds 5 to 10 knots. Bay waters smooth. 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 340 Am Cdt Mon Aug 19 2019
Synopsis for high island to matagorda ship channel out 60 nm.. A moderate onshore flow will gradually diminish by Tuesday morning. A typical summertime onshore flow pattern will continue through the remainder of the week as high pressure builds into the region, producing lower seas and lighter winds.


7 Day Forecast for Marine Location Near Bacliff, TX
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location: 29.53, -94.98     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 191124
afdhgx
area forecast discussion
national weather service houston galveston tx
624 am cdt Mon aug 19 2019

Aviation
MostlyVFR ceilings this morning with the occasional MVFR ifr
deck over cll and gls. Could see a temporary MVFR deck across the
metro or northern terminals shortly after sunrise. Ceilings
should rise through the morning hours toVFR and prevail through
the period until tomorrow morning when temporary MVFR ceilings
will again be possible. The development of showers should push
inland through the morning hours, with scattered convection
possible further inland during the afternoon hours. With
convective temperatures in reach, thunderstorms will be possible.

Winds will remain out of the S today around 10 knots, turning more
out of the SE with the passage of the sea breeze this afternoon.

Winds should become more light and variable during the overnight
hours inland.

Hathaway

Prev discussion issued 356 am cdt Mon aug 19 2019
short term (today through Tuesday)...

radar imagery shows scattered showers over the gulf waters beginning
to push onshore along the coast this morning, and would expect
similar activity to continue through the remainder of the morning
hours. Better coverage of showers and isolated thunderstorms will be
possible late this morning and into the early afternoon hours. A
typical summer day is in store, with scattered convection possible,
focusing along small-scale boundaries such as the sea and bay
breezes, with development spreading further inland through the late
afternoon hours. Anticipate most of the showers and thunderstorms to
dissipate by the early evening hours, shortly after sunset. With
convective temperatures in the upper 80s to low 90s across the
region, a rumble of thunder and lightning cannot be ruled out,
especially during peak heating this afternoon. Strong storms could
produce brief heavy downpours and gusty winds. Short term guidance
is fairly consistent with coverage between model solutions, with the
better chance for development of showers and storms south of a line
from columbus to huntsville where the best moisture should pool.

Trended the forecast closer to the hrrr and rap13 than the nmm and
arw, which have overdone coverage on initiation.

In terms of heat, conditions should be just slightly cooler than
yesterday, with apparent temperatures again borderline heat advisory
criteria. Better cloud cover today associated with today's more
widespread convection should keep us below criteria for the most
part, but isolated locations could reach the 108 degree threshold.

Overall, looking like most heat index values should tap out between
104 to 107 degrees, therefore will again hold off on issuing a heat
advisory today. Similar to yesterday, we will need to monitor
observations closely throughout the day in case a short-fused heat
advisory is needed. As is typical for SE tx in mid august, we are
continuing to encourage the practice of heat safety.

Tuesday looks to be fairly similar to today, with the main difference
being slightly drier dewpoints with the upper-level ridge building
in overhead. That should keep MAX heat index values again below
heat advisory criteria, with values between 102 to 106 degrees in
the forecast. Widespread convection will also be possible, but not
expecting as much in terms of coverage Tuesday in comparison to
today. Hathaway
long term (Wednesday through Sunday)...

ridge city as a series of canadian-based troughs ride due east
within zonal flow atop of central plains upper ridging. As we head
into late august, there will be very little variance in our day-to-
day southeast texas weather conditions. Hot and humid will remain
the theme with lobes of more more moisture-rich (greater than 2"
pwat) gom air advecting in from the east to southeast. This will
ensure continued warm, muggy overnights that will struggle to cool
much below 83 f along the coast... Sticky sunrise upper 70s inland.

Ambient temperatures will be warming to 90 f by 10 or 11 am with
afternoons peaking out in the mid to upper 90s with a few 100 f
degree locales west of the city. Afternoon heat indices will
typically range between 103 to 107 f inland... 106 to 110 f near the
coast. Suppression brought on by upper ridging will keep convective
activity confined to the vicinity of the local breezes. Subsequent
day coverage will be at least 20% with higher 40 to 50% areal
coverage strictly determinant upon early day clear skies getting us
to convective temps faster, initiating a stronger sea bay breeze
inland intrusion in tandem with periods of high(er) inland gulf
moisture advection. Generally, daily shower and storm behavior will
be confined to those communities along and south of the i-69
corridor with much lower areal coverage across the northern third of
the cwa.

Ridging is progged to finally weaken next weekend. Lower texas
heights beginning on Saturday with a transition to either an
inverted trough feature (gfs) to a southern extension of upper
plains troughing (ecmwf) back over the state. Models have really
backed off on the tropical wave(s)-leading-to-higher-rainfall
scenario across the southern forecast area next weekend. The
19 00z nwp solutions plant the highest rainfall amounts over
central texas or off the louisiana coastline. We fall into a
continued diurnally-driven convection behavior pattern that will
simply be an extension of what we will experience through the work
week. So, the good news is that gom atlantic basin tropical
weather remains benign through the end of next week... The only
action will be a possible weekend tropical cyclone skirting the
southern baja california sur (mx) coast. 31
marine...

a rip current statement for the risk of strong rip currents remains
in effect through the late morning hours today along gulf facing
beaches. Light to moderate onshore flow continues across the bays
and gulf waters this morning and should prevail through Tuesday
morning, when wind speeds should diminish slightly in response to a
region of high pressure overhead. This upper level ridge should
weaken and shift north by mid week, still allowing for the chance
for scattered showers and thunderstorms each day, with showers
beginning to develop over the gulf waters in the early morning hours
as radar imagery is also indicating this morning. Winds may become
gusty and erratic near and beneath any thunderstorms that develop.

Seas will remain between 2 to 4 feet through Tuesday before lowering
to 2 to 3 feet through the remainder of the work week. Seas will
build once again to between 3 to 5 feet Friday through the weekend
as a weak disturbance moves into the region. Tides should also run
near normal through mid-week. Hathaway
climate...

record breaking heat continues across SE tx, with another three
records set yesterday, august 18th. The city of galveston recorded a
high temperature of 96 degrees yesterday, which ties the old record
of 96 degrees set in 2011. Additionally, a record high minimum
temperature of 86 degrees was set yesterday, breaking the old record
of 84 degrees set back in 2017. Houston hobby also set a record high
minimum temperature of 81 degrees yesterday. This ties the old
record of 81 degrees set in 2011. Hathaway

Preliminary point temps pops
College station (cll) 99 78 99 77 99 20 0 10 10 10
houston (iah) 96 80 96 79 96 50 10 30 10 30
galveston (gls) 95 84 94 84 93 40 30 50 20 30

Hgx watches warnings advisories
Tx... High rip current risk until 10 am cdt this morning for the
following zones: brazoria islands... Galveston island and
bolivar peninsula... Matagorda islands.

Gm... None.

Aviation marine short climate... 08
long... 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 5 mi60 min SW 2.9 G 6 86°F 87°F1014.9 hPa
MGPT2 - 8770613 - Morgans Point, TX 11 mi60 min SSW 2.9 G 6 86°F 88°F1015.6 hPa
GRRT2 16 mi60 min SW 5.1 G 7 86°F 87°F1015.2 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi66 min S 9.9 G 12 87°F 87°F1014.6 hPa
GTOT2 18 mi60 min SW 5.1 G 11 86°F 88°F1015.5 hPa
NCHT2 - 8770777 - Manchester, TX 20 mi60 min SSW 5.1 G 6 84°F 87°F1015.3 hPa
RLOT2 - 8770971 - Rollover Pass, TX 25 mi60 min SSW 4.1 G 6 88°F 88°F1015.9 hPa
HIST2 32 mi66 min S 6 G 8 87°F 88°F1015.4 hPa
LUIT2 32 mi60 min S 9.9 G 12 87°F 85°F1015.5 hPa
KXIH 34 mi35 min SSW 12 88°F 77°F
42035 - GALVESTON 22NM East of Galveston, TX 36 mi40 min SSW 12 G 14 88°F 4 ft1016.7 hPa82°F
42043 - GA-252 TABS B 38 mi180 min S 12 G 14 87°F1014.4 hPa
FCGT2 - 8772447 - USCG Freeport, TX 44 mi60 min S 9.9 G 15 87°F 86°F1015.8 hPa
FPST2 44 mi60 min S 12 G 15 86°F 85°F1015.1 hPa

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX12 mi40 minS 410.00 miPartly Cloudy86°F78°F79%1015.2 hPa
Houston, Pearland Regional Airport, TX14 mi37 minVar 310.00 miPartly Cloudy86°F78°F77%1016.2 hPa
Houston, Houston Hobby Airport, TX18 mi37 minS 510.00 miPartly Cloudy86°F78°F77%1016.2 hPa
Galveston, Scholes Field, TX19 mi38 minS 1210.00 miPartly Cloudy89°F78°F70%1016 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hrS10S11S13S10S10S6S6--S12S10S11S8S7SE4------Calm----CalmCalmCalmS4
1 day agoSW5S8S5S8S7S13
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S12SE13S13SE11S12S7S5S4S6S4S4S3S3S3SE3SE3CalmS8
2 days agoW5N5SE1NE6E6SE6SE6SE7SE8SE7SE7SE5SE5SE4SE5S4CalmS4CalmCalmCalmCalmS5S6

Tide / Current Tables for Eagle Point, Texas
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Eagle Point
Click for Map
Mon -- 04:54 AM CDT     0.32 feet Low Tide
Mon -- 06:49 AM CDT     Sunrise
Mon -- 10:17 AM CDT     Moonset
Mon -- 11:45 AM CDT     0.91 feet High Tide
Mon -- 05:39 PM CDT     0.56 feet Low Tide
Mon -- 07:56 PM CDT     Sunset
Mon -- 10:34 PM CDT     Moonrise
Mon -- 11:18 PM CDT     0.81 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.50.40.30.30.40.40.60.70.80.90.90.90.80.70.60.60.60.60.70.70.80.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Mon -- 01:33 AM CDT     -0.83 knots Max Ebb
Mon -- 04:49 AM CDT     0.00 knots Slack
Mon -- 06:49 AM CDT     Sunrise
Mon -- 07:56 AM CDT     1.06 knots Max Flood
Mon -- 10:16 AM CDT     Moonset
Mon -- 11:45 AM CDT     -0.00 knots Slack
Mon -- 03:27 PM CDT     -1.04 knots Max Ebb
Mon -- 07:10 PM CDT     0.00 knots Slack
Mon -- 07:55 PM CDT     Sunset
Mon -- 08:47 PM CDT     0.24 knots Max Flood
Mon -- 10:34 PM CDT     Moonrise
Mon -- 11:03 PM CDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.8-0.8-0.7-0.40.10.60.91.10.90.70.3-0.1-0.5-0.8-1-1-0.8-0.4-0.10.20.20.20

Weather Map and Satellite Images
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GOES Local Image of    EDIT
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Wind Forecast for Houston/Galveston, TX (10,2,3,4)
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Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current


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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.