Alert archive / Texas / Small Craft Advisories in 2017

Small Craft Advisory 21, NWS Houston/Galveston, TX

February 21, 2017

NWS Houston/Galveston, TX issued this small craft advisory at Feb 21, 2017, 3:31 AM CST. It took effect at Feb 21, 2017, 5:00 AM CST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 2017, 3:31 AM CST (09:31 UTC)
In effect from
Feb 21, 2017, 5:00 AM CST
Expired
Feb 21, 2017, 6:00 PM CST
In force
13 hr
Issued by
NWS Houston/Galveston, TX

The text

As transmitted.

146 
WHUS74 KHGX 210931
MWWHGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
331 AM CST TUE FEB 21 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CST THIS MORNING...

...SMALL CRAFT ADVISORY IN EFFECT TODAY...

.FOG HAS DEVELOPED OVER GALVESTON BAY AND SOME OF IT MAY BE DENSE
THROUGH THE MORNING HOURS. A FRONTAL BOUNDARY SHOULD PUSH THROUGH
THE AREA LATER THIS MORNING INCREASE NORTHWEST WINDS. STRONG
OFFSHORE WINDS WILL ALSO BUILD SEAS TO AROUND 7 FEET. WINDS AND
SEAS SHOULD DECREASE LATER TODAY.

GMZ335-211300-
/O.NEW.KHGX.MF.Y.0026.170221T0931Z-170221T1300Z/
GALVESTON BAY-
331 AM CST TUE FEB 21 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
DENSE FOG ADVISORY, WHICH IS IN EFFECT UNTIL 7 AM CST THIS
MORNING. 

* VISIBILITY...LESS THAN 1 NAUTICAL MILE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS SHOULD BE PREPARED FOR SUDDEN CHANGES IN VISIBILITY OVER
SHORT DISTANCES. REDUCE YOUR SPEED AND KEEP A LOOKOUT FOR OTHER
VESSELS...BUOYS AND BREAKWATERS. KEEP YOUR NAVIGATION LIGHTS ON.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER CRAFT
OR NOT EQUIPPED WITH RADAR...SHOULD CONSIDER SEEKING SAFE HARBOR.

&&

$$

GMZ330-350-211800-
/O.NEW.KHGX.SC.Y.0021.170221T1100Z-170221T1800Z/
MATAGORDA BAY-
COASTAL WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT
20 NM-
331 AM CST TUE FEB 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
SMALL CRAFT ADVISORY, WHICH IS IN EFFECT UNTIL NOON CST TODAY. 

* WINDS...NORTHWEST 15 TO 25 KNOTS

* SEAS...CHOPPY BAY WATERS...3 TO 5 FEET NEARHSORE...5 TO 7 FEET
  OFFSHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...
AND/OR SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED BOATERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

GMZ370-211800-
/O.NEW.KHGX.SC.Y.0021.170221T1100Z-170222T0000Z/
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL FROM 20 TO
60 NM-
331 AM CST TUE FEB 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
SMALL CRAFT ADVISORY, WHICH IS IN EFFECT UNTIL 6 PM CST THIS
EVENING. 

* WINDS...NORTHWEST 15 TO 25 KNOTS.

* SEAS...3 TO 5 FEET NEARHSORE...5 TO 7 FEET OFFSHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...
AND/OR SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED BOATERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
1 follow-up statement
609 
WHUS74 KHGX 211049
MWWHGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
449 AM CST TUE FEB 21 2017

...SMALL CRAFT ADVISORY IN EFFECT TODAY...

.A FRONTAL BOUNDARY SHOULD PUSH THROUGH THE AREA LATER THIS 
MORNING AND INCREASE NORTHWEST WINDS. STRONG OFFSHORE WINDS WILL 
ALSO BUILD SEAS TO AROUND 7 FEET. WINDS AND SEAS SHOULD DECREASE 
LATER TODAY.

GMZ335-211200-
/O.CAN.KHGX.MF.Y.0026.000000T0000Z-170221T1300Z/
GALVESTON BAY-
449 AM CST TUE FEB 21 2017

...DENSE FOG ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS CANCELLED
THE DENSE FOG ADVISORY. 

VISIBILITY HAS IMPROVED ACROSS GALVESTON BAY.

$$

GMZ330-350-211800-
/O.CON.KHGX.SC.Y.0021.170221T1100Z-170221T1800Z/
MATAGORDA BAY-
COASTAL WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT
20 NM-
449 AM CST TUE FEB 21 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WINDS...NORTHWEST 15 TO 25 KNOTS

* SEAS...CHOPPY BAY WATERS...3 TO 5 FEET NEARHSORE...5 TO 7 FEET 
  OFFSHORE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...
AND/OR SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED BOATERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

GMZ370-211800-
/O.CON.KHGX.SC.Y.0021.170221T1100Z-170222T0000Z/
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL FROM 20 TO
60 NM-
449 AM CST TUE FEB 21 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WINDS...NORTHWEST 15 TO 25 KNOTS.

* SEAS...3 TO 5 FEET NEARHSORE...5 TO 7 FEET OFFSHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...
AND/OR SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED BOATERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 21, 1:27 AM CSTDense Fog AdvisoryHGXBrazoria, Chambers, Galveston, Harris, Liberty3 hr
Feb 21, 3:31 AM CSTMarine Dense Fog AdvisoryHGX78 min

Nearby

Small Craft Advisories in Texas, 2017Every small craft advisory in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.