Thursday, April2, 2020
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Marine Weather and Tides
Shoreacres, TX

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:06AMSunset 7:40PM Thursday April 2, 2020 3:04 PM CDT (20:04 UTC) Moonrise 12:52PMMoonset 2:17AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 1002 Am Cdt Thu Apr 2 2020
Rest of today..Southeast winds 10 to 15 knots and gusty. Bay waters slightly choppy.
Tonight..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers early in the evening. A slight chance of showers after midnight.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers late in the afternoon.
Friday night..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms.
Saturday..East winds 10 to 15 knots. Bay waters slightly choppy. Showers and a slight chance of Thunderstorms.
Saturday night..East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and isolated Thunderstorms.
Sunday..East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and isolated Thunderstorms.
Sunday night..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers and isolated Thunderstorms.
Monday..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Isolated Thunderstorms in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Monday night..South winds around 10 knots. Bay waters smooth to slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1002 Am Cdt Thu Apr 2 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Light to moderate onshore flow through Friday. The flow may approach caution flag criteria this afternoon for a few hours in the offshore waters. There will be increased chance of showers and Thunderstorms beginning early Saturday morning through the rest of the weekend as a cold front moves through the region.


7 Day Forecast for Marine Location Near Shoreacres, TX
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location: 29.64, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 021810 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 110 PM CDT Thu Apr 2 2020

SHORT TERM [Today through Friday Afternoon]. Changes for today . expecting cloudy skies today . lowered temperatures slightly in the northwest and upped slightly near the coast. S/W moving into the region from the southwest already lighting up the Hill County/Coastal Bend with showers. As this nears SETX expect the coverage of showers to expand and fill in across the west and northwest then weaken/shrink as it rolls on further east and southeast. Will carry 50-80 POPs in the northwest and west and taper down to 20-30 range in the east mainly during the 3 pm to midnight timeframe. Some may just be sprinkles in the far the eastern counties.

At this point looks like some elevated thunderstorms possible near and north of a Crockett to Navasota to Columbus with greatest chance for thunderstorms with some brief heavier downpours and gusty winds to 25 knots in and around Burleson/Brazos counties. Lull in showers comes in after 11 pm in the wake of the s/w and then probably won't see much through 11 am Fri. Still looking like storms will be more widespread on Friday as the front finally arrives and may become more dominated by the mesoscale and cold pool. 45

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AVIATION [18Z TAF Issuance]. Patchy MVFR ceilings near the coast for a few hours then VFR. As the s/w arrives this afternoon/evening expect ceilings to lower into MVFR and possible visibility restrictions beginning around CLL and expanding east and southeast but at this point other than some showers no significant impacts expected at CXO/IAH/HOU/SGR southward. Overnight ceilings gradually lowering into MVFR across the area 05-12z then lifting in advance of the next round of showers/thunderstorms Friday afternoon/night. 45

PREV DISCUSSION /Issued 528 AM CDT Thu Apr 2 2020/.

LONG TERM [Friday through Wednesday].

An active weather pattern expected through much of the long term forecast period, with the greatest potential for heavy showers and thunderstorms still on tap for Friday night into Saturday. An upper level low stationed over the Alberta, Canada region will continue to strengthen Friday. As the associated upper level trough continues east northeastward into the Great Lakes region, area of high pressure on the surface will expand southward over the Plains and push a surface low and associated cold front across central Texas Friday afternoon. The cold front is then expected to track south and move across SE Texas Friday night into Saturday morning and stall. This is the period when the weather is expected to get a bit convoluted for SE Texas.

Friday morning will start with the development of showers, but conditions deteriorate as the day progresses. Continued low level moisture transport from the Gulf will maintain dew points between 60 and 70 deg F area-wide. By late morning into early afternoon, instability will rise, gradually deteriorating conditions across our area. Ahead of the cold front, forecast soundings show SBCAPE and MUCAPE values of 2000-3000 J/kg, mid level lapse rates of 7.0 to 7.5 C/km, SFC-6 KM shear between 40-50 kts, and PWATS in the 1.5 to 1.8 range along the northern half of the CWA in the afternoon and evening. With sufficient instability in place and increased ascent from the cold front, moderate to heavy showers and thunderstorms are forecast to develop mainly over the northern half of the CWA Friday afternoon and Friday night, expanding into the rest of the CWA overnight as the front moves across the region and slows down and eventually stalls. The potential for heavy showers and strong thunderstorms remains across the northern half of the CWA. SPC Day 2 outlook continues the slight risk for severe thunderstorms for northwest quadrant of the CWA with a marginal risk expanding elsewhere, except for portions of Galveston, Chambers, southern Harris and Liberty counties. Main hazards with strong storms is the potential for hail and damaging winds. In addition, the chance of the front slowing and stalling over the local area, increases the potential for showers developing over the same regions for several hours or possibly only allow them to move slowly. This will increase the potential for some flooding problems, however, its too soon to know the extent or exact location. WPCs Excessive Rainfall Day 2 Outlook has a marginal risk over the northern half of the CWA. Saturday and Sunday, an active weather pattern is expected to continue as the front tries to make its way back north while a few weaknesses move over the area and upper level winds increase.

Early to mid week next week will depend on how the environment is set up. For now, models continue to suggest a wet weather pattern but could depend on how well the upper level ridge builds over the local area. Thus, kept PoPs 40 percent or less. 24

MARINE.

Light to occasionally moderate onshore flow expected today through Saturday. Periods of showers and isolated thunderstorms are expected to develop over the bays and waters Friday evening through the weekend as a cold front moves across the SE Texas, stalls and then lifts north. Main hazards with this activity will be strong gusty winds, lightning and locally higher seas in and near showers and thunderstorms. Conditions improve early next week. 24

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 65 80 57 67 60 / 60 80 80 80 40 Houston (IAH) 67 79 66 75 64 / 30 50 70 80 50 Galveston (GLS) 71 77 71 77 70 / 20 20 60 80 50

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . None.



AVIATION/SHORT TERM . 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi316 min SE 12 G 17 71°F 73°F1015.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 12 mi316 min SE 13 G 17 71°F 70°F1015.2 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi322 min SE 8 G 11 71°F 74°F1014.8 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi322 min SE 19 G 20 71°F 72°F1014.2 hPa
GRRT2 24 mi316 min SSE 12 G 16 71°F 70°F1014.8 hPa
GTOT2 25 mi316 min 73°F
RLOT2 - 8770971 - Rollover Pass, TX 27 mi316 min SE 17 G 19 72°F 68°F1015.5 hPa
HIST2 32 mi334 min SE 5.1 G 9.9 72°F 72°F1015.3 hPa
LUIT2 40 mi316 min SE 14 G 17 72°F 72°F1016.1 hPa
42035 - GALVESTON 22NM East of Galveston, TX 42 mi304 min ESE 16 G 21 71°F 72°F1015.2 hPa (+0.8)66°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi74 minESE 16 G 2210.00 miOvercast73°F64°F74%1014.2 hPa
Houston, Houston Hobby Airport, TX15 mi71 minSE 15 G 2010.00 miOvercast76°F62°F62%1014.4 hPa
Houston, Pearland Regional Airport, TX16 mi71 minSE 1210.00 miOvercast76°F62°F62%1014.5 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hr--E12E12E14E11E8SE7SE6E5E4E4E5--E5E5E6E6E5E9SE6E10SE10E12
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1 day agoNW13
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NW9NW9--N9N7N6N5N11NE8N7NE5NE4NE5N5NE4NE6NE5E14E13----E14SE13
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SE13S9SE10SE8S7S8S8S6SW6--SW6SW10SW10W10W10--NW19--NW19N11NW13
G18

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 03:15 AM CDT     Moonset
Thu -- 04:20 AM CDT     -1.75 knots Max Ebb
Thu -- 07:06 AM CDT     Sunrise
Thu -- 09:26 AM CDT     0.00 knots Slack
Thu -- 01:23 PM CDT     1.74 knots Max Flood
Thu -- 01:51 PM CDT     Moonrise
Thu -- 07:38 PM CDT     Sunset
Thu -- 08:47 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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-1.1-1.3-1.5-1.6-1.7-1.7-1.6-1.3-0.8-0.30.411.51.71.71.51.310.80.50.3-0.1-0.4-0.6

Weather Map
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wmap_A
GEOS 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 Houston/Galveston, TX (16,3,4,5)
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Ground Weather Radar Station Houston/Galveston, TX
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weather_mapweather_map weather_map

Gulf Stream Current


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