Thursday, April22, 2021
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Marine Weather and Tides
El Lago, TX

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:44AMSunset 7:52PM Thursday April 22, 2021 9:05 AM CDT (14:05 UTC) Moonrise 2:13PMMoonset 3:04AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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- 345 Am Cdt Thu Apr 22 2021
.small craft should exercise caution...
Today..East winds 15 to 20 knots. Bay waters choppy.
Tonight..Southeast winds 15 to 20 knots. Bay waters choppy. A slight chance of showers after midnight. Isolated Thunderstorms after midnight. A chance of showers late.
Friday..Southeast winds 15 to 20 knots. Bay waters choppy. Showers and Thunderstorms.
Friday night..South winds 15 to 25 knots becoming southwest 10 to 15 knots after midnight. Bay waters choppy becoming slightly choppy after midnight. Showers and Thunderstorms likely in the evening, then a chance of showers and isolated Thunderstorms after midnight.
Saturday..West winds 10 to 15 knots becoming northwest in the afternoon. Bay waters slightly choppy becoming smooth to slightly choppy in the afternoon.
Saturday night..North winds 10 to 15 knots becoming northeast after midnight. Bay waters slightly choppy.
Sunday..East winds around 10 knots becoming southeast in the afternoon. Bay waters smooth to slightly choppy.
Sunday night..Southeast winds around 10 knots. Bay waters smooth to slightly choppy.
Monday..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Monday night..Southeast winds around 15 knots. Bay waters slightly choppy to choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 345 Am Cdt Thu Apr 22 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate easterly winds with become southeasterly through the day today. Small craft should exercise caution through Friday as wind speeds remain near 20 knots and wave heights climb to near 6 feet. Small craft advisories may be necessary late today into Friday. An upper level low will swing through the area on Friday bringing a chance of showers and Thunderstorms. The associated cold front will cross the coastal waters Saturday morning ending the precipitation chances along with brief offshore flow. Onshore winds are expected to return by late Sunday afternoon.


7 Day Forecast for Marine Location Near El Lago, TX
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location: 29.56, -95.05     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 220855 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 355 AM CDT Thu Apr 22 2021

SHORT TERM [Through Friday Night]. Surface high pressure is in the process of moving east of the region. Easterly flow along the coast will continue to veer to more of an onshore direction & allow Gulf moisture to begin its return. Partly to mostly sunny conditions early in the day will become cloudy areawide during the afternoon as cloudiness overspreads the region from the southwest. The moisture column will take some time to deepen, and other than some spotty shra's doubt we'll see much in the way of precip until late tonight into Fri morning when we'll see increasing coverage under a strengthening llvl jet.

Large scale lift will increase Fri with the approach of the upper trof to our west. At the sfc, low pres will develop in vicinity of TX/OK Panhandles and the corresponding dryline stretching to the south will and track esewd toward cntl TX during the afternoon. Combination of the above should allow for precip to become widespread across the region as the late morning and afternoon progresses.

Sufficient shear, respectable helicities, somewhat steep mid level lapse rates, and diffluent flow aloft will keep all conditional storm modes/hazards in play during the afternoon into the mid-late evening hours Friday. SPC still has the whole CWA outlooked in a Slight Risk which is reasonable given a bit of model uncertainty in regards to exactly how everything plays out. Areas north of I-10, and more specifically along/north of US-105 may see the higher potential for more significant wx. As one gets further south toward the coast, capping could very well be a limiting factor. In regards to rainfall, expect average amounts of 1-2" north of I-10 with localized higher amounts with any training heavier cells. Precip totals will probably taper down further south to 1/4-1/2" at the beaches. Rain should be pushing out of the area after midnight as the system departs, though we may still see some lingering light precip along the wind shift as it edges toward the coast. 47

.LONG TERM [Saturday Through Thursday]

Some lingering clouds will be possible Saturday morning from Friday night's cold front, but skies will rapidly clear as high pressure builds to the north providing SE Texas an absolutely fantastic weekend. Mostly clear skies, low humidity, and daytime highs temperatures in the low to mid 80s will persist through the weekend. The low moisture values will allow for low temperatures Saturday night to dip down into the low 50s across the north and into the mid to upper 50s across the rest of the area. The high pressure will be fairly progressive as it gets to the Ohio River Valley by Sunday night. This ushers in a more southeasterly wind flow into the area increasing moisture, thus keeping the area a little warmer Sunday night (by around 5 to 10 degrees compared to Saturday night).

An upper level low will be swinging into the Pacific Northwest Sunday night as well. The high pressure to the east and developing low pressure to the west increases southerly flow into the area Monday into Tuesday continuing the warm temperatures, but increases cloud cover. The upper level low exits the Rockies Tuesday night causing a surface low to develop across the Central Plains. This will bring a chance of showers and thunderstorms for our area starting late Tuesday night/early Wednesday through Wednesday evening when the associated cold front moves through the area. There is still some uncertainty on the location/strength of this system and how quickly the front exits the area. But, like the past few system, it looks like areas to the north and east of our region, such as the Red River Valley and into Lousiana, will get the brunt of the precipitation. However, things may change as details come into better view.

Fowler

AVIATION [12Z TAF Issuance].

As cloud cover increases throughout the day, cigs should gradually fall and probably into the 2500-4000ft range by sunset. Continued lowering overnight with MVFR conditions prevailing. Spotty shra will increase in coverage after 9z Friday followed by shra/tsra during the day. 47

MARINE.

Small craft should continue to exercise caution through the day today as wind speeds remain at around 15 to 20kts. The easterly flow this morning will become southeasterly by the late afternoon. Near advisory conditions will start in the late afternoon this evening as wind gusts climb to 25kts and wave heights approach 6ft. The moderate onshore flow will persist through the day on Friday continuing the need for caution flags or small craft advisories. The persistent onshore flow also bring in higher tides and a high risk of rip currents along Gulf facing beaches on Friday. Guidance currently brings high tide on Friday to about 2.5 to 3ft above MLLW. There will be a chance of showers and thunderstorms on Friday as an upper level low swings through the area. The threat of precipitation and the onshore flow ends early Saturday morning as a weak cold front moves through the coastal waters. High pressure builds in over the area for the rest of the weekend causing light and variable winds with wave heights between 3 and 5ft. Onshore flow returns on Monday as the high pressure slides to the east. This flow increases on Tuesday ahead of the next approaching upper level low that moves through the area on Wednesday.

Fowler

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 73 62 77 62 81 / 10 40 90 70 0 Houston (IAH) 72 65 77 67 84 / 0 30 90 70 0 Galveston (GLS) 72 69 77 71 82 / 0 30 70 60 0

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION through late tonight for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM . Coastal waters from High Island to Freeport TX out 20 NM . Galveston Bay . Matagorda Bay . Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM . Waters from High Island to Freeport TX from 20 to 60 NM.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 9 mi48 min NE 15 G 17 58°F 64°F1020.8 hPa
MGPT2 - 8770613 - Morgans Point, TX 9 mi48 min NE 9.9 G 12 55°F 67°F1021.8 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi48 min ENE 7 G 8 55°F 73°F1021.4 hPa
GRRT2 20 mi48 min ESE 8 G 8.9 64°F 64°F1020.5 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 22 mi48 min ESE 12 G 14 64°F 66°F1019.9 hPa
GTOT2 22 mi48 min ESE 6 G 12 65°F 68°F1020.6 hPa
RLOT2 - 8770971 - Rollover Pass, TX 29 mi48 min NE 11 G 14 56°F 59°F1021.5 hPa
LUIT2 34 mi48 min E 8.9 G 14 65°F 66°F1020.1 hPa
HIST2 35 mi48 min NE 6 G 8.9 57°F 67°F1021.3 hPa
42035 - GALVESTON 22NM East of Galveston, TX 41 mi26 min E 12 G 16 66°F 70°F1020.2 hPa
42043 - GA-252 TABS B 41 mi126 min E 12 70°F
FPST2 45 mi48 min E 12 G 14 66°F 1019.3 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX8 mi76 minNNE 710.00 miFair55°F45°F67%1021.3 hPa
Houston, Pearland Regional Airport, TX11 mi73 minNE 610.00 miFair58°F45°F62%1021.7 hPa
Houston, Houston Hobby Airport, TX14 mi73 minENE 810.00 miA Few Clouds58°F42°F56%1021.9 hPa
John Dunn Helistop, TX21 mi71 minENE 69.00 miFair54°F41°F63%1021 hPa
Galveston, Scholes Field, TX22 mi74 minE 710.00 miFair65°F51°F61%1020.9 hPa
Houston Southwest Airport, TX23 mi71 minENE 510.00 miPartly Cloudy56°F45°F66%1021.7 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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N15NE9N11NE5N5NE6E6NE5NE6NE8NE7NE8--NE8NE10NE8NE6NE6NE7
1 day agoNW6--SW3CalmNW4NW3CalmW4
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E11SE9S8S6S4NW7NW6NW10N12N16N15N16N15N14N12
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E8E9E6SE6S6S5SE4SW5Calm--Calm--CalmCalmCalmCalmCalm

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas (2)
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Clear Lake
Click for Map
Thu -- 04:03 AM CDT     Moonset
Thu -- 06:46 AM CDT     Sunrise
Thu -- 01:29 PM CDT     0.14 feet Low Tide
Thu -- 03:13 PM CDT     Moonrise
Thu -- 07:51 PM CDT     Sunset
Thu -- 08:51 PM CDT     0.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.80.80.80.80.70.70.60.50.40.30.20.10.20.20.30.50.60.80.90.90.90.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 04:02 AM CDT     Moonset
Thu -- 06:10 AM CDT     -1.49 knots Max Ebb
Thu -- 06:45 AM CDT     Sunrise
Thu -- 10:49 AM CDT     0.00 knots Slack
Thu -- 02:35 PM CDT     1.67 knots Max Flood
Thu -- 03:12 PM CDT     Moonrise
Thu -- 07:50 PM CDT     Sunset
Thu -- 08:18 PM CDT     -0.00 knots Slack
Thu -- 11:19 PM CDT     -0.62 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-0.9-1-1.1-1.3-1.4-1.5-1.5-1.3-1-0.50.10.81.31.61.61.51.10.80.40.1-0.2-0.5-0.6

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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