Marine Weather and Tide Forecast for Galveston, TX
May 20, 2024 11:42 AM CDT (16:42 UTC) Change Location
 | Sunrise 6:22 AM Sunset 8:08 PM Moonrise 4:40 PM Moonset 3:26 AM |
GMZ375 Expires:202405202030;;526667 Fzus54 Khgx 200726 Cwfhgx
coastal waters forecast for texas national weather service houston/galveston tx 226 am cdt Mon may 20 2024
upper texas coastal waters from high island to the matagorda ship channel out 60 nautical miles including galveston and matagorda bays.
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.
gmz370-375-202030- 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- 226 am cdt Mon may 20 2024
Today - Southeast winds around 10 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 7 seconds.
Tonight - Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 7 seconds.
Tuesday - Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 6 seconds.
Tuesday night - Southeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave detail: southeast 4 feet at 5 seconds.
Wednesday - Southeast winds around 15 knots. Seas 4 to 5 feet. Wave detail: southeast 4 feet at 6 seconds.
Wednesday night - Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: southeast 4 feet at 6 seconds.
Thursday - Southeast winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet.
Thursday night - Southeast winds around 15 knots. Seas 5 to 6 feet, occasionally to 8 feet.
Friday - Southeast winds 10 to 15 knots. Seas around 5 feet.
Friday night - Southeast winds 10 to 15 knots. Seas around 5 feet.
coastal waters forecast for texas national weather service houston/galveston tx 226 am cdt Mon may 20 2024
upper texas coastal waters from high island to the matagorda ship channel out 60 nautical miles including galveston and matagorda bays.
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.
gmz370-375-202030- 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- 226 am cdt Mon may 20 2024
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 226 Am Cdt Mon May 20 2024
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
light to mostly moderate onshore winds can be expected through much of this week. Small craft may need to exercise caution at times around midweek as the onshore flow increases and seas rise.
light to mostly moderate onshore winds can be expected through much of this week. Small craft may need to exercise caution at times around midweek as the onshore flow increases and seas rise.
Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 201043 AFDHGX
Area Forecast Discussion National Weather Service Houston/Galveston TX 543 AM CDT Mon May 20 2024
New AVIATION
SHORT TERM
(Today through Tuesday Night)
Issued at 225 AM CDT Mon May 20 2024
Patchy fog will be possible once again later this morning, but not expecting it to be quite as widespread or dense with surface conditions being a little bit drier than previous nights. Locations west of I-45 have the best chance of seeing fog development mainly between the timeframe of 5-9AM.
Hot and dry conditions persist as we kick off the new work week, but we'll at least have a southerly breeze to work with. Latest surface analysis shows an area of low pressure developing in the Texas Panhandle. This'll tighten the pressure gradient a bit leading to southerly/southeasterly winds around 10 mph throughout the day.
We're still going to see temperatures top out in the low 90s, but 90s with a breeze feels waaay better than the low 90s with no wind.
Heat index values will still be in the upper 90s though. That onshore flow will come back to haunt us tomorrow with increasing humidity leading to even higher heat index values. Temperatures during the overnight hours will continue to be well above normal with lows in the mid to upper 70s tonight and solidly in the upper 70s on Tuesday night.
We get even breezier on Tuesday as a shortwave trough pushing through the Four Corners region generates another (and slightly stronger) surface low on the lee-side of the Rockies. The deepening of this surface low will lead to southeasterly winds around 15 mph throughout the day. Being in the warm sector of this surface low allows for moisture to increase even further. PW values will be in the 1.3-1.7" range by Tuesday afternoon (75th percentile: ~1.60").
There will also be a 20-25 kt LLJ overhead and some upper level diffluence, but with subsidence from the ridging aloft and a very robust capping inversion aloft around 850mb...don't expect to see anything more than a higher percentage of cloud cover sticking around through Tuesday afternoon.
Temperatures will still top out in the low 90s Tuesday, but with the added humidity it'll feel like the triple digits! Heat index values are expected to be in the 99-103°F range, so heat safety must remain a top priority. Be sure to drink plenty of water, take frequent breaks, avoid strenuous outdoor activities during the hottest part of the day, know the signs of heat stroke/heat exhaustion, and ALWAYS ALWAYS ALWAYS look before you lock your vehicle. Don't forget about your pets as well! If the ground is too hot for the palm of your hand, then it is too hot for their paws.
Batiste
LONG TERM
(Wednesday through Sunday)
Issued at 225 AM CDT Mon May 20 2024
With mid/upper level ridging situated to our south and southwest throughout this period, there are some indications in a couple of the latest model runs that we might have to keep an eye on possible shower/storm development from around midweek and on into the weekend. The latest NBM continues its dry trend with only low rain chances Thursday afternoon/evening, and will stick with this for now. As has been advertised, the main concern will be the heat. High temperatures will be in the 90s, and heat index values will generally be in a 95 to 105 range (and possible getting close to heat advisory values on Monday...a week from today). Little relief will come overnight as morning lows by the end of the week and especially over the weekend will range from the low to mid 70s up north to the upper 70s to around 80 central and south. As exactly stated above and for several days now...heat safety must remain a top priority. Be sure to drink plenty of water, take frequent breaks, avoid strenuous outdoor activities during the hottest part of the day, know the signs of heat stroke/heat exhaustion, and ALWAYS ALWAYS ALWAYS look before you lock your vehicle. Don't forget about your pets as well! If the ground is too hot for the palm of your hand, then it is too hot for their paws.
42
AVIATION
(12Z TAF Issuance)
Issued at 543 AM CDT Mon May 20 2024
Nighttime satellite imagery depicts low-level clouds filtering in from the south mainly west of I-45 early this morning. This may require a short TEMPO for MVFR ceilings/visibilities till 14Z. VFR conditions will prevail throughout the day with southeasterly winds around 8-12 knots. Widespread MVFR ceilings expected during the late evening to overnight hours, and there looks to be some potential for intermittent periods of IFR ceilings as well.
Batiste
MARINE
Issued at 225 AM CDT Mon May 20 2024
Light to mostly moderate onshore winds can be expected through much of this week. Small craft may need to exercise caution at times around midweek as the onshore flow increases and seas rise.
42
HYDROLOGY
Issued at 225 AM CDT Mon May 20 2024
Minor to major river flooding continues for parts of Southeast Texas, particularly along portions of the Trinity, Brazos, and San Jacinto rivers. The following river points are either currently in flood stage or are forecast to reach flood stage (as of early Monday morning):
MAJOR// ------- - Trinity River (Liberty): Major - Trinity River (Goodrich): Major
MODERATE// ---------- - Trinity River (Riverside): Moderate - Trinity River (Moss Bluff): Moderate - Brazos River (West Columbia): Moderate (forecast)
MINOR// ------- - Navasota River (Normangee): Minor - East Fork San Jacinto (New Caney): Minor - West Fork San Jacinto (Humble): Minor - Brazos River (Rosharon): Minor - Brazos River (Sugar Land): Minor - Brazos River (Richmond): Minor (forecast)
Remember to heed any instructions from your local officials and to never travel through ANY flooded areas or roadways. TURN AROUND, DON'T DROWN. Please monitor updated forecasts via the NWS AHPS website and/or the new NWS NWPS webpage (https://water.noaa.gov/) as the river flood threat persists.
Batiste
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 90 74 91 76 / 0 0 0 0 Houston (IAH) 91 75 91 77 / 0 0 0 0 Galveston (GLS) 84 78 85 78 / 0 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.
Area Forecast Discussion National Weather Service Houston/Galveston TX 543 AM CDT Mon May 20 2024
New AVIATION
SHORT TERM
(Today through Tuesday Night)
Issued at 225 AM CDT Mon May 20 2024
Patchy fog will be possible once again later this morning, but not expecting it to be quite as widespread or dense with surface conditions being a little bit drier than previous nights. Locations west of I-45 have the best chance of seeing fog development mainly between the timeframe of 5-9AM.
Hot and dry conditions persist as we kick off the new work week, but we'll at least have a southerly breeze to work with. Latest surface analysis shows an area of low pressure developing in the Texas Panhandle. This'll tighten the pressure gradient a bit leading to southerly/southeasterly winds around 10 mph throughout the day.
We're still going to see temperatures top out in the low 90s, but 90s with a breeze feels waaay better than the low 90s with no wind.
Heat index values will still be in the upper 90s though. That onshore flow will come back to haunt us tomorrow with increasing humidity leading to even higher heat index values. Temperatures during the overnight hours will continue to be well above normal with lows in the mid to upper 70s tonight and solidly in the upper 70s on Tuesday night.
We get even breezier on Tuesday as a shortwave trough pushing through the Four Corners region generates another (and slightly stronger) surface low on the lee-side of the Rockies. The deepening of this surface low will lead to southeasterly winds around 15 mph throughout the day. Being in the warm sector of this surface low allows for moisture to increase even further. PW values will be in the 1.3-1.7" range by Tuesday afternoon (75th percentile: ~1.60").
There will also be a 20-25 kt LLJ overhead and some upper level diffluence, but with subsidence from the ridging aloft and a very robust capping inversion aloft around 850mb...don't expect to see anything more than a higher percentage of cloud cover sticking around through Tuesday afternoon.
Temperatures will still top out in the low 90s Tuesday, but with the added humidity it'll feel like the triple digits! Heat index values are expected to be in the 99-103°F range, so heat safety must remain a top priority. Be sure to drink plenty of water, take frequent breaks, avoid strenuous outdoor activities during the hottest part of the day, know the signs of heat stroke/heat exhaustion, and ALWAYS ALWAYS ALWAYS look before you lock your vehicle. Don't forget about your pets as well! If the ground is too hot for the palm of your hand, then it is too hot for their paws.
Batiste
LONG TERM
(Wednesday through Sunday)
Issued at 225 AM CDT Mon May 20 2024
With mid/upper level ridging situated to our south and southwest throughout this period, there are some indications in a couple of the latest model runs that we might have to keep an eye on possible shower/storm development from around midweek and on into the weekend. The latest NBM continues its dry trend with only low rain chances Thursday afternoon/evening, and will stick with this for now. As has been advertised, the main concern will be the heat. High temperatures will be in the 90s, and heat index values will generally be in a 95 to 105 range (and possible getting close to heat advisory values on Monday...a week from today). Little relief will come overnight as morning lows by the end of the week and especially over the weekend will range from the low to mid 70s up north to the upper 70s to around 80 central and south. As exactly stated above and for several days now...heat safety must remain a top priority. Be sure to drink plenty of water, take frequent breaks, avoid strenuous outdoor activities during the hottest part of the day, know the signs of heat stroke/heat exhaustion, and ALWAYS ALWAYS ALWAYS look before you lock your vehicle. Don't forget about your pets as well! If the ground is too hot for the palm of your hand, then it is too hot for their paws.
42
AVIATION
(12Z TAF Issuance)
Issued at 543 AM CDT Mon May 20 2024
Nighttime satellite imagery depicts low-level clouds filtering in from the south mainly west of I-45 early this morning. This may require a short TEMPO for MVFR ceilings/visibilities till 14Z. VFR conditions will prevail throughout the day with southeasterly winds around 8-12 knots. Widespread MVFR ceilings expected during the late evening to overnight hours, and there looks to be some potential for intermittent periods of IFR ceilings as well.
Batiste
MARINE
Issued at 225 AM CDT Mon May 20 2024
Light to mostly moderate onshore winds can be expected through much of this week. Small craft may need to exercise caution at times around midweek as the onshore flow increases and seas rise.
42
HYDROLOGY
Issued at 225 AM CDT Mon May 20 2024
Minor to major river flooding continues for parts of Southeast Texas, particularly along portions of the Trinity, Brazos, and San Jacinto rivers. The following river points are either currently in flood stage or are forecast to reach flood stage (as of early Monday morning):
MAJOR// ------- - Trinity River (Liberty): Major - Trinity River (Goodrich): Major
MODERATE// ---------- - Trinity River (Riverside): Moderate - Trinity River (Moss Bluff): Moderate - Brazos River (West Columbia): Moderate (forecast)
MINOR// ------- - Navasota River (Normangee): Minor - East Fork San Jacinto (New Caney): Minor - West Fork San Jacinto (Humble): Minor - Brazos River (Rosharon): Minor - Brazos River (Sugar Land): Minor - Brazos River (Richmond): Minor (forecast)
Remember to heed any instructions from your local officials and to never travel through ANY flooded areas or roadways. TURN AROUND, DON'T DROWN. Please monitor updated forecasts via the NWS AHPS website and/or the new NWS NWPS webpage (https://water.noaa.gov/) as the river flood threat persists.
Batiste
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 90 74 91 76 / 0 0 0 0 Houston (IAH) 91 75 91 77 / 0 0 0 0 Galveston (GLS) 84 78 85 78 / 0 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| KGVW | 23 mi | 27 min | E 8.9 | |||||
| 42035 - GALVESTON 22NM East of Galveston, TX | 27 mi | 42 min | E 7.8G | 80°F | 29.89 | |||
| GTOT2 | 40 mi | 54 min | ESE 8G | 81°F | 81°F | 29.85 | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 41 mi | 54 min | SE 8.9G | 79°F | 81°F | 29.86 | ||
| GRRT2 | 43 mi | 54 min | SE 5.1G | 80°F | 82°F | 29.86 | ||
| LUIT2 | 44 mi | 54 min | ESE 6G | 81°F | 82°F | 29.87 | ||
| RLOT2 - 8770971 - Rollover Pass, TX | 47 mi | 54 min | ESE 9.9G | 79°F | 86°F | 29.89 |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
Galveston (Pleasure Pier)
Click for Map
Mon -- 03:05 AM CDT 2.11 feet High Tide
Mon -- 04:27 AM CDT Moonset
Mon -- 06:24 AM CDT Sunrise
Mon -- 08:40 AM CDT 1.66 feet Low Tide
Mon -- 12:34 PM CDT 1.83 feet High Tide
Mon -- 05:42 PM CDT Moonrise
Mon -- 07:57 PM CDT 0.20 feet Low Tide
Mon -- 08:07 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 03:05 AM CDT 2.11 feet High Tide
Mon -- 04:27 AM CDT Moonset
Mon -- 06:24 AM CDT Sunrise
Mon -- 08:40 AM CDT 1.66 feet Low Tide
Mon -- 12:34 PM CDT 1.83 feet High Tide
Mon -- 05:42 PM CDT Moonrise
Mon -- 07:57 PM CDT 0.20 feet Low Tide
Mon -- 08:07 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Galveston (Pleasure Pier), Texas (2), Tide feet
| 12 am |
| 1.5 |
| 1 am |
| 1.8 |
| 2 am |
| 2 |
| 3 am |
| 2.1 |
| 4 am |
| 2.1 |
| 5 am |
| 1.9 |
| 6 am |
| 1.8 |
| 7 am |
| 1.7 |
| 8 am |
| 1.7 |
| 9 am |
| 1.7 |
| 10 am |
| 1.7 |
| 11 am |
| 1.8 |
| 12 pm |
| 1.8 |
| 1 pm |
| 1.8 |
| 2 pm |
| 1.7 |
| 3 pm |
| 1.5 |
| 4 pm |
| 1.2 |
| 5 pm |
| 0.8 |
| 6 pm |
| 0.5 |
| 7 pm |
| 0.3 |
| 8 pm |
| 0.2 |
| 9 pm |
| 0.3 |
| 10 pm |
| 0.5 |
| 11 pm |
| 0.8 |
Galveston (Pleasure Pier)
Click for Map
Mon -- 03:15 AM CDT 1.99 feet High Tide
Mon -- 04:27 AM CDT Moonset
Mon -- 06:24 AM CDT Sunrise
Mon -- 09:09 AM CDT 1.23 feet Low Tide
Mon -- 01:17 PM CDT 1.51 feet High Tide
Mon -- 05:42 PM CDT Moonrise
Mon -- 08:07 PM CDT Sunset
Mon -- 08:17 PM CDT 0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 03:15 AM CDT 1.99 feet High Tide
Mon -- 04:27 AM CDT Moonset
Mon -- 06:24 AM CDT Sunrise
Mon -- 09:09 AM CDT 1.23 feet Low Tide
Mon -- 01:17 PM CDT 1.51 feet High Tide
Mon -- 05:42 PM CDT Moonrise
Mon -- 08:07 PM CDT Sunset
Mon -- 08:17 PM CDT 0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Galveston (Pleasure Pier), Texas, Tide feet
| 12 am |
| 1.3 |
| 1 am |
| 1.6 |
| 2 am |
| 1.9 |
| 3 am |
| 2 |
| 4 am |
| 2 |
| 5 am |
| 1.8 |
| 6 am |
| 1.6 |
| 7 am |
| 1.4 |
| 8 am |
| 1.3 |
| 9 am |
| 1.2 |
| 10 am |
| 1.3 |
| 11 am |
| 1.3 |
| 12 pm |
| 1.4 |
| 1 pm |
| 1.5 |
| 2 pm |
| 1.5 |
| 3 pm |
| 1.4 |
| 4 pm |
| 1.1 |
| 5 pm |
| 0.8 |
| 6 pm |
| 0.5 |
| 7 pm |
| 0.3 |
| 8 pm |
| 0.1 |
| 9 pm |
| 0.2 |
| 10 pm |
| 0.4 |
| 11 pm |
| 0.7 |
Houston/Galveston, TX,
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