Alert archive / California / Gale Warnings in 2018

Gale Warning 16, NWS Eureka, CA

April 6, 2018

NWS Eureka, CA issued this gale warning at Apr 6, 2018, 2:32 PM PDT. It took effect at Apr 6, 2018, 9:00 PM PDT. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 6, 2018, 2:32 PM PDT (21:32 UTC)
In effect from
Apr 6, 2018, 9:00 PM PDT
Expired
Apr 7, 2018, 9:00 AM PDT
In force
12 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

353 
WHUS76 KEKA 062132
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
232 PM PDT Fri Apr 6 2018

PZZ470-070545-
/O.EXT.KEKA.SC.Y.0036.000000T0000Z-180407T0400Z/
/O.NEW.KEKA.GL.W.0016.180407T0400Z-180407T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
232 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM THIS
EVENING...
...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM 
SATURDAY...

* WINDS...S increasing to 25 to 30 kt with gusts to 40 kt. 
  Winds slowly diminishing Saturday afternoon.

* WAVES...Steep seas continuing to build to 8 to 10 ft by this 
  evening. W swell will build combined seas to 15 to 20 ft by 
  late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-070545-
/O.EXT.KEKA.SC.Y.0036.180407T0100Z-180408T0400Z/
Pt St George to Cape Mendocino out 10 nm-
232 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
9 PM SATURDAY...

* WINDS...S increasing to 20 to 30 kt with occasional gusts to 
  35 kt by this evening. 

* SEAS...Steep seas building to 6 to 9 ft by tonight. Combined 
  seas building to 10 to 14 ft by Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ455-070545-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180407T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
232 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM SATURDAY...

* WINDS...S 15 to 25 kt through tonight. Gusts to 30 kt near 
  Cape Mendocino. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this 
  evening. W swell will build combined seas to 12 to 16 ft by 
  late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ475-070545-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180408T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
232 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM 
SATURDAY...

* WINDS...SW 15 to 25 kt with occasional gusts to 35 kt through
  Saturday morning.

* WAVES...Steep seas continuing to build to 8 to 10 ft by this
  evening. W swell will build combined seas tonight to 15 to 20 
  ft by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
4 follow-up statements
440 
WHUS76 KEKA 070351
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
851 PM PDT Fri Apr 6 2018

PZZ470-071200-
/O.EXP.KEKA.SC.Y.0036.000000T0000Z-180407T0400Z/
/O.CON.KEKA.GL.W.0016.180407T0400Z-180407T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
851 PM PDT Fri Apr 6 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY...

* WINDS...S increasing to 25 to 30 kt with gusts to 40 kt. Winds 
  slowly diminishing Saturday afternoon. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this 
  evening. W swell will build combined seas to 15 to 20 ft by 
  late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

PZZ455-071000-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180407T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
851 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
SATURDAY...

* WINDS...S 15 to 25 kt through tonight. Gusts to 30 kt near 
  Cape Mendocino. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this 
  evening. W swell will build combined seas to 12 to 16 ft by 
  late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ475-071200-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180408T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
851 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
SATURDAY...

* WINDS...SW 15 to 25 kt with occasional gusts to 35 kt through 
  Saturday morning. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this 
  evening. W swell will build combined seas tonight to 15 to 20 
  ft by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ450-071200-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180408T0400Z/
Pt St George to Cape Mendocino out 10 nm-
851 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
SATURDAY...

* WINDS...S increasing to 20 to 30 kt with occasional gusts to 
  35 kt by this evening. 

* SEAS...Steep seas building to 6 to 9 ft by tonight. Combined 
  seas building to 10 to 14 ft by Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
519 
WHUS76 KEKA 070523
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
1023 PM PDT Fri Apr 6 2018

PZZ470-071330-
/O.CON.KEKA.GL.W.0016.000000T0000Z-180407T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1023 PM PDT Fri Apr 6 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY...

* WINDS...S increasing to 25 to 30 kt with gusts to 40 kt. Winds 
  slowly diminishing Saturday afternoon. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this
  evening. W swell will build resulting in combined seas from 15 
  to 20 ft by late Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

PZZ455-071000-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180407T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
1023 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
SATURDAY...

* WINDS...S 15 to 25 kt through tonight. Gusts to 30 kt near 
  Cape Mendocino. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this
  evening. W swell will build with combined seas from 12 to 16 ft
  by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ475-071330-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180408T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1023 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
SATURDAY...

* WINDS...SW 15 to 25 kt with occasional gusts to 35 kt through 
  Saturday morning. 

* WAVES...Steep seas continuing to build to 8 to 10 ft by this
  evening. W swell will build with combined seas from 15 to 20 ft
  by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ450-071330-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180408T0400Z/
Pt St George to Cape Mendocino out 10 nm-
1023 PM PDT Fri Apr 6 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
SATURDAY...

* WINDS...S increasing to 20 to 30 kt with occasional gusts to 
  35 kt by this evening. 

* SEAS...Steep seas building to 6 to 9 ft by tonight. Combined 
  seas building to 10 to 14 ft by Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
510 
WHUS76 KEKA 070939
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
239 AM PDT Sat Apr 7 2018

PZZ470-071745-
/O.CON.KEKA.GL.W.0016.000000T0000Z-180407T1600Z/
/O.NEW.KEKA.SE.A.0001.180407T1600Z-180408T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
239 AM PDT Sat Apr 7 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...HAZARDOUS SEAS WATCH IN EFFECT FROM 9 AM PDT THIS MORNING
THROUGH SUNDAY MORNING...

The National Weather Service in Eureka has issued a Hazardous
Seas Watch, which is in effect from 9 AM PDT this morning through
Sunday morning. 

* WINDS...S 20 to 30 kt with gusts to 40 kt early this morning.
  Winds gusts will diminish to around 30 kt this morning. Winds
  will continue to subside throughout the day.

* WAVES...Combined seas building to 15 to 20 ft by this evening.
  With westerly swell of around 17 feet at 14 seconds, seas will
  be approaching hazardous level. Elevated seas will continue
  through Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Hazardous Seas Watch is issued when the risk of hazardous seas
has significantly increased, but the specific timing and/or
location is still uncertain.  It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

PZZ455-475-071745-
/O.EXT.KEKA.SC.Y.0036.000000T0000Z-180409T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
239 AM PDT Sat Apr 7 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WINDS...S 15 to 25 kt early this morning, with gusts to 30 kt
  near Cape Mendocino. Winds will diminish through today.

* WAVES...Steep seas 8 to 10 ft through early this morning. W
  swell will build with combined seas of 12 to 16 ft during the 
  day today. Elevated seas will continue through the weekend.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ450-071745-
/O.EXT.KEKA.SC.Y.0036.000000T0000Z-180409T1000Z/
Pt St George to Cape Mendocino out 10 nm-
239 AM PDT Sat Apr 7 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WINDS...S 15 to 25 kt with gusts to 30 kt through this
  afternoon. Winds will diminish this evening.

* SEAS...Steep seas 6 to 9 ft through early this morning. W swell
  will build with combined seas of 12 to 16 ft during the day
  today. Elevated seas will continue through the weekend.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
135 
WHUS76 KEKA 071600
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
900 AM PDT Sat Apr 7 2018

PZZ470-080000-
/O.EXP.KEKA.GL.W.0016.000000T0000Z-180407T1600Z/
/O.CON.KEKA.SE.A.0001.000000T0000Z-180408T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
900 AM PDT Sat Apr 7 2018

...HAZARDOUS SEAS WATCH REMAINS IN EFFECT THROUGH SUNDAY
MORNING...
...GALE WARNING HAS EXPIRED...

* WAVES...Combined seas building to 15 to 20 ft by this evening.
  With westerly swell of around 17 feet at 14 seconds, seas will
  be approaching hazardous level. Elevated seas will continue
  through Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Seas Watch is issued when the risk of hazardous seas
has significantly increased, but the specific timing and/or
location is still uncertain.  It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

$$

PZZ450-455-475-080000-
/O.CON.KEKA.SC.Y.0036.000000T0000Z-180409T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
900 AM PDT Sat Apr 7 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM MONDAY...

* WINDS...S 15 to 25 kt with gusts to 30 kt through this 
  afternoon. Winds will diminish this evening. 

* SEAS...W swell will build with combined seas of 12 to 16 ft 
  during the day today. Elevated seas will continue through the 
  weekend. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 6:01 AM PDTWind AdvisoryEKADel Norte, Humboldt33 hr
Apr 6, 8:40 AM PDTRiver Flood WarningEKAMendocino36 hr
Apr 6, 8:56 AM PDTRiver Flood AdvisoryEKAMendocino36 hr
Apr 6, 11:01 AM PDTAreal Flood AdvisoryEKAMendocino3 hr
Apr 6, 2:01 PM PDTAreal Flood AdvisoryEKAMendocino2 hr
Apr 6, 4:09 PM PDTAreal Flood AdvisoryEKAMendocino14 hr

Nearby

Gale Warnings in California, 2018Every gale warning in 2018

Sources

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