Find VTEC Product:

IEM VTEC Product Browser

This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).

13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.

Tab Functionality:
Above this section, you will notice six selectable tabs. Click on the tab to show the information.

  • Help: This page!
  • Event Info: Details of the selected event.
  • Text Data: The raw text product for this event.
  • Interactive Map: An interactive map showing the event and RADAR.
  • Storm Reports: Local Storm Reports.
  • List Events: List all events of the given phenomena, significance, year, and issuing office.

Web Services Used:
This application is fully driven by IEM web services.

2025 [KHGX] HOUSTON/GALVESTON Gale (GL) Warning (W) Number 6

Listing of Counties/Parishes/Zones Included in Product

RADAR Composite at Issuance Time

Storm Based Warning History

699 
WHUS74 KHGX 200325
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1025 PM CDT Wed Mar 19 2025

GMZ350-355-370-375-201130-
/O.UPG.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.NEW.KHGX.GL.W.0006.250320T0325Z-250320T0900Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
1025 PM CDT Wed Mar 19 2025

...GALE WARNING IN EFFECT UNTIL 4 AM CDT THURSDAY...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  6 to 9 ft.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 4 AM CDT Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

GMZ335-201130-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.EXT.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Galveston Bay-
1025 PM CDT Wed Mar 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT
THURSDAY...
...LOW WATER ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THURSDAY...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Galveston Bay.

* WHEN...For the Small Craft Advisory, until noon CDT Thursday. 
  For the Low Water Advisory, until 10 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

GMZ330-201130-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
Matagorda Bay-
1025 PM CDT Wed Mar 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT
THURSDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and rough
  bay waters.

* WHERE...Matagorda Bay.

* WHEN...Until noon CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
760 
WHUS74 KHGX 200537
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1237 AM CDT Thu Mar 20 2025

GMZ350-355-370-375-200900-
/O.CON.KHGX.GL.W.0006.000000T0000Z-250320T0900Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
1237 AM CDT Thu Mar 20 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT EARLY THIS
MORNING...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  6 to 9 ft.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 4 AM CDT early this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

GMZ330-201345-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.EXA.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Matagorda Bay-
1237 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY...
...LOW WATER ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Matagorda Bay.

* WHEN...For the Small Craft Advisory, until noon CDT today. For 
  the Low Water Advisory, until 10 AM CDT this morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

GMZ335-201345-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.CON.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Galveston Bay-
1237 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Galveston Bay.

* WHEN...For the Small Craft Advisory, until noon CDT today. For 
  the Low Water Advisory, until 10 AM CDT this morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$
169 
WHUS74 KHGX 200835
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
335 AM CDT Thu Mar 20 2025

GMZ350-355-370-375-201645-
/O.EXP.KHGX.GL.W.0006.000000T0000Z-250320T0900Z/
/O.EXB.KHGX.SC.Y.0031.250320T0900Z-250320T1800Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
335 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...GALE WARNING WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  6 to 11 ft expected.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 1 PM CDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

GMZ330-335-201645-
/O.EXT.KHGX.SC.Y.0031.000000T0000Z-250320T1800Z/
/O.CON.KHGX.LO.Y.0009.000000T0000Z-250320T1500Z/
Matagorda Bay-Galveston Bay-
335 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 35 kt and very rough bay waters. For the Low 
  Water Advisory, abnormally low water levels.

* WHERE...Matagorda Bay and Galveston Bay.

* WHEN...For the Small Craft Advisory, until 1 PM CDT this 
  afternoon. For the Low Water Advisory, until 10 AM CDT this 
  morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$
Permalink to 202503200325-KHGX-WHUS74-MWWHGX
699 
WHUS74 KHGX 200325
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1025 PM CDT Wed Mar 19 2025

GMZ350-355-370-375-201130-
/O.UPG.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.NEW.KHGX.GL.W.0006.250320T0325Z-250320T0900Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
1025 PM CDT Wed Mar 19 2025

...GALE WARNING IN EFFECT UNTIL 4 AM CDT THURSDAY...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  6 to 9 ft.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 4 AM CDT Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

GMZ335-201130-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.EXT.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Galveston Bay-
1025 PM CDT Wed Mar 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT
THURSDAY...
...LOW WATER ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THURSDAY...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Galveston Bay.

* WHEN...For the Small Craft Advisory, until noon CDT Thursday. 
  For the Low Water Advisory, until 10 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

GMZ330-201130-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
Matagorda Bay-
1025 PM CDT Wed Mar 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT
THURSDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and rough
  bay waters.

* WHERE...Matagorda Bay.

* WHEN...Until noon CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
Permalink to 202503200537-KHGX-WHUS74-MWWHGX
760 
WHUS74 KHGX 200537
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1237 AM CDT Thu Mar 20 2025

GMZ350-355-370-375-200900-
/O.CON.KHGX.GL.W.0006.000000T0000Z-250320T0900Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
1237 AM CDT Thu Mar 20 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT EARLY THIS
MORNING...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  6 to 9 ft.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 4 AM CDT early this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

GMZ330-201345-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.EXA.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Matagorda Bay-
1237 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY...
...LOW WATER ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Matagorda Bay.

* WHEN...For the Small Craft Advisory, until noon CDT today. For 
  the Low Water Advisory, until 10 AM CDT this morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

GMZ335-201345-
/O.CON.KHGX.SC.Y.0031.000000T0000Z-250320T1700Z/
/O.CON.KHGX.LO.Y.0009.250320T0600Z-250320T1500Z/
Galveston Bay-
1237 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt 
  with gusts up to 35 kt and rough bay waters. For the Low Water 
  Advisory, abnormally low water levels expected.

* WHERE...Galveston Bay.

* WHEN...For the Small Craft Advisory, until noon CDT today. For 
  the Low Water Advisory, until 10 AM CDT this morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$
Permalink to 202503200835-KHGX-WHUS74-MWWHGX
169 
WHUS74 KHGX 200835
MWWHGX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Houston/Galveston TX
335 AM CDT Thu Mar 20 2025

GMZ350-355-370-375-201645-
/O.EXP.KHGX.GL.W.0006.000000T0000Z-250320T0900Z/
/O.EXB.KHGX.SC.Y.0031.250320T0900Z-250320T1800Z/
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
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-
335 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...GALE WARNING WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  6 to 11 ft expected.

* WHERE...Portions of Gulf of America. 

* WHEN...Until 1 PM CDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

GMZ330-335-201645-
/O.EXT.KHGX.SC.Y.0031.000000T0000Z-250320T1800Z/
/O.CON.KHGX.LO.Y.0009.000000T0000Z-250320T1500Z/
Matagorda Bay-Galveston Bay-
335 AM CDT Thu Mar 20 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 35 kt and very rough bay waters. For the Low 
  Water Advisory, abnormally low water levels.

* WHERE...Matagorda Bay and Galveston Bay.

* WHEN...For the Small Craft Advisory, until 1 PM CDT this 
  afternoon. For the Low Water Advisory, until 10 AM CDT this 
  morning.

* IMPACTS...Conditions will be hazardous to small craft. Below 
  normal water levels will result in hazardous navigating 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

All Storm Reports within Event Political Coverage

Storm Reports within Product Polygon

This table lists other events issued by the selected office for the selected year. Click on the row to select that event.