Alert archive / California / Small Craft Advisories in 2016

Small Craft Advisory 21, NWS San Diego, CA

December 15, 2016

NWS San Diego, CA issued this small craft advisory at Dec 15, 2016, 2:26 AM PST. It took effect at Dec 16, 2016, 12:00 AM PST. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued
Dec 15, 2016, 2:26 AM PST (10:26 UTC)
In effect from
Dec 16, 2016, 12:00 AM PST
Expired
Dec 17, 2016, 10:00 AM PST
In force
34 hr
Issued by
NWS San Diego, CA

The text

As transmitted.

345 
WHUS76 KSGX 151026
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
226 AM PST THU DEC 15 2016

...GUSTY WINDS AND LARGE SEAS LATE THURSDAY NIGHT THROUGH SATURDAY
MORNING...

.A PACIFIC STORM MOVING ACROSS THE COASTAL WATERS THIS AFTERNOON
THROUGH LATE FRIDAY WILL GENERATE GUSTY WINDS...LARGE COMBINED
SEAS...AND STEEP WAVES LATE TONIGHT THROUGH SATURDAY. SOUTH WINDS
WILL STRENGTHEN AHEAD OF THE FRONT TONIGHT...GRADUALLY SHIFTING TO
THE WEST AND STRENGTHENING FURTHER BY FRIDAY MORNING AS THE FRONT
MOVES THROUGH. STRONGEST WINDS AND LARGEST SEAS ARE EXPECTED
DURING THE DAY FRIDAY. WINDS AND SEAS WILL DIMINISH DURING THE DAY
SATURDAY.

PZZ750-775-151830-
/O.NEW.KSGX.SC.Y.0021.161216T0800Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
226 AM PST THU DEC 15 2016

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
PST SATURDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A SMALL
CRAFT ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
PST SATURDAY. 

* WINDS...SOUTH WINDS 15-20 KT THIS EVENING...BECOMING WEST 20-25
  KT WITH GUSTS TO 30 KT FRIDAY MORNING. STRONGEST WINDS WILL
  OCCUR FRIDAY AFTERNOON AND EVENING.

* WAVES/SEAS...COMBINED SEAS 8 TO 12 FT OVER THE OUTER COASTAL
  WATERS AND 6 TO 10 FT OVER THE INNER COASTAL WATERS ON FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

SS
9 follow-up statements
498 
WHUS76 KSGX 151825
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1025 AM PST THU DEC 15 2016

...GUSTY WINDS AND LARGE SEAS LATE THURSDAY NIGHT THROUGH
SATURDAY MORNING...

.A PACIFIC STORM MOVING ACROSS THE COASTAL WATERS THIS AFTERNOON
THROUGH LATE FRIDAY WILL GENERATE GUSTY WINDS...LARGE COMBINED
SEAS...AND STEEP WAVES LATE TONIGHT THROUGH SATURDAY. SOUTH WINDS
WILL STRENGTHEN AHEAD OF THE FRONT TONIGHT...GRADUALLY SHIFTING
TO THE WEST AND STRENGTHENING FURTHER BY FRIDAY MORNING AS THE
FRONT MOVES THROUGH. STRONGEST WINDS AND LARGEST SEAS ARE
EXPECTED DURING THE DAY FRIDAY. WINDS AND SEAS WILL DIMINISH
DURING THE DAY SATURDAY.

PZZ750-775-160600-
/O.CON.KSGX.SC.Y.0021.161216T0800Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
1025 AM PST THU DEC 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 8 AM PST SATURDAY...

* WINDS...SOUTH WINDS 15-20 KT THIS EVENING...BECOMING WEST 20- 
  25 KT WITH GUSTS TO 30 KT FRIDAY MORNING. STRONGEST WINDS WILL 
  OCCUR FRIDAY AFTERNOON AND EVENING. 

* WAVES/SEAS...COMBINED SEAS 8 TO 12 FT OVER THE OUTER COASTAL 
  WATERS AND 6 TO 10 FT OVER THE INNER COASTAL WATERS ON FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

TS
576 
WHUS76 KSGX 160426
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
826 PM PST THU DEC 15 2016

...VERY STRONG WINDS AND LARGE SEAS FRIDAY AND FRIDAY NIGHT...

.GUSTY SOUTHWEST WINDS FROM 15 TO 20 KT TONIGHT WILL SHIFT TO THE
WEST WITH THE PASSAGE OF A STRONG COLD FRONT FRIDAY MORNING. THE
STRONGEST WINDS AND LARGEST SEAS ARE EXPECTED FRIDAY AFTERNOON
AND FRIDAY NIGHT WITH SUSTAINED WINDS OF 20 TO 30 KT. GUSTS MAY
APPROACH GALE FORCE. THE STRONG WINDS...LARGE COMBINED SEAS...AND
STEEP WAVES WILL CREATE DANGEROUS BOATING CONDITIONS. WINDS AND
SEAS WILL DECREASE SATURDAY.

PZZ750-775-161400-
/O.CON.KSGX.SC.Y.0021.161216T0800Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
826 PM PST THU DEC 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 8 AM PST SATURDAY...

* WINDS...SOUTH WINDS 15 TO 20 KT TONIGHT...BECOMING WEST 20 TO 30
  KT FRIDAY MORNING. STRONGEST WINDS WILL OCCUR FRIDAY AFTERNOON
  AND EVENING WITH A FEW GUSTS APPROACHING GALE FORCE.

* WAVES/SEAS...COMBINED SEAS 8 TO 12 FT OVER THE OUTER COASTAL 
  WATERS AND 6 TO 10 FT OVER THE INNER COASTAL WATERS ON FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

MOEDE
056 
WHUS76 KSGX 161312
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
512 AM PST FRI DEC 16 2016

...STRONG WEST WINDS AND LARGE SEAS THROUGH EARLY SATURDAY...

.GUSTY SOUTHWEST WINDS FROM 15 TO 20 KT TONIGHT WILL SHIFT TO THE
WEST WITH THE PASSAGE OF A COLD FRONT BY MID-MORNING. THE
STRONGEST WINDS AND LARGEST SEAS ARE EXPECTED THIS AFTERNOON AND
FRIDAY NIGHT WITH SUSTAINED WINDS OF 20 TO 30 KT. GUSTS MAY
LOCALLY APPROACH GALE FORCE. STRONG WINDS...LARGE COMBINED
SEAS...AND STEEP WAVES WILL CREATE DANGEROUS BOATING CONDITIONS.
WINDS AND SEAS WILL LOWER SATURDAY.

PZZ750-775-162200-
/O.CON.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
512 AM PST FRI DEC 16 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SATURDAY...

* WINDS...SOUTH WINDS 15 TO 20 KT THIS MORNING...BECOMING WEST 20
  TO 30 KT BY THE EARLY AFTERNOON. STRONGEST WINDS WILL OCCUR THIS
  AFTERNOON AND EVENING WITH A FEW GUSTS APPROACHING GALE FORCE.

* WAVES/SEAS...COMBINED SEAS 8 TO 12 FT OVER THE OUTER COASTAL 
  WATERS AND 6 TO 10 FT OVER THE INNER COASTAL WATERS ON FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


SS
123 
WHUS76 KSGX 162128
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
128 PM PST FRI DEC 16 2016

...STRONG WINDS AND LARGE SEAS THROUGH EARLY SATURDAY...

.STRONG WEST TO NORTHWEST WINDS OF 20 TO 30 KT AND LARGES...STEEP 
SEAS ARE EXPECTED THIS AFTERNOON AND TONIGHT. GUSTS MAY LOCALLY
APPROACH GALE FORCE. THIS WILL CREATE DANGEROUS BOATING
CONDITIONS. WINDS AND SEAS WILL LOWER SATURDAY.

PZZ750-775-170600-
/O.CON.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
128 PM PST FRI DEC 16 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SATURDAY...

* WINDS...WEST TO NORTHWEST 15 TO 25 WITH GUSTS TO 30 KT.
  STRONGEST WINDS WILL OCCUR THIS AFTERNOON AND EVENING WITH A FEW
  GUSTS APPROACHING GALE FORCE.

* WAVES/SEAS...COMBINED SEAS 9 TO 11 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

HARRISON
372 
WHUS76 KSGX 170540
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
940 PM PST FRI DEC 16 2016

...STRONG WINDS AND LARGE SEAS THROUGH EARLY SATURDAY...

.STRONG WEST TO NORTHWEST WINDS OF 20 TO 30 KT AND LARGE STEEP
SEAS ARE EXPECTED THIS AFTERNOON AND TONIGHT. GUSTS WILL LOCALLY
REACH GALE FORCE IN THE OUTER WATERS. THIS WILL CREATE DANGEROUS
BOATING CONDITIONS. WINDS AND SEAS WILL LOWER SATURDAY.

PZZ750-775-171400-
/O.CON.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
940 PM PST FRI DEC 16 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SATURDAY...

* WINDS...WEST TO NORTHWEST 20 TO 30 WITH LOCAL GUSTS TO 35 KT.
  STRONGEST WINDS WILL OCCUR THIS EVENING WITH A FEW GUSTS REACHING
  GALE FORCE.

* WAVES/SEAS...COMBINED SEAS 9 TO 11 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

MAXWELL
422 
WHUS76 KSGX 171254
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
454 AM PST SAT DEC 17 2016

...STRONG WINDS AND LARGE SEAS THROUGH MID MORNING...

.STRONG WEST TO NORTHWEST WINDS OF 20 TO 30 KT AND LARGE STEEP
SEAS ARE EXPECTED THIS AFTERNOON AND TONIGHT. THIS WILL CREATE
DANGEROUS BOATING CONDITIONS. WINDS AND SEAS WILL LOWER LATE
MORNING INTO THIS AFTERNOON.

PZZ750-775-171600-
/O.CON.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
454 AM PST SAT DEC 17 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS
MORNING...

* WINDS...WEST TO NORTHWEST 20 KT WITH GUSTS 25 TO 30 KT.

* WAVES/SEAS...COMBINED SEAS 7 TO 10 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

JMB
816 
WHUS76 KSGX 171256 CCA
MWWSGX

URGENT - MARINE WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE SAN DIEGO CA
456 AM PST SAT DEC 17 2016

...STRONG WINDS AND LARGE SEAS THROUGH MID MORNING...

.WEST TO NORTHWEST WINDS OF 20 TO 30 KT AND LARGE STEEP SEAS WILL
CREATE DANGEROUS BOATING CONDITIONS. WINDS AND SEAS WILL LOWER
LATE THIS MORNING AND INTO THIS AFTERNOON.

PZZ750-775-171600-
/O.CON.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
456 AM PST SAT DEC 17 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS
MORNING...

* WINDS...WEST TO NORTHWEST 20 KT WITH GUSTS 25 TO 30 KT.

* WAVES/SEAS...COMBINED SEAS 7 TO 10 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

JMB
392 
WHUS76 KSGX 171547
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
747 AM PST SAT DEC 17 2016

...STRONG WINDS AND LARGE SEAS THROUGH MID MORNING...

PZZ750-171700-
/O.EXP.KSGX.SC.Y.0021.000000T0000Z-161217T1600Z/
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
TO 30 NM-
747 AM PST SAT DEC 17 2016

...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING...

WINDS AND SEAS HAVE LOWERED AND WILL CONTINUE TO LOWER THROUGH THE
DAY.

$$

PZZ775-171800-
/O.EXT.KSGX.SC.Y.0021.000000T0000Z-161217T1800Z/
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
747 AM PST SAT DEC 17 2016

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WINDS...NORTHWEST 15 TO 20 KT WITH GUSTS TO 25 KT.

* WAVES/SEAS...COMBINED SEAS 9 TO 10 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND COMBINED SEAS OF 10 FEET OR GREATER ARE EXPECTED TO PRODUCE
HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

HARRISON
983 
WHUS76 KSGX 171754
MWWSGX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
954 AM PST SAT DEC 17 2016

PZZ775-171900-
/O.EXP.KSGX.SC.Y.0021.000000T0000Z-161217T1800Z/
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
954 AM PST SAT DEC 17 2016

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

WINDS AND SEAS HAVE LOWERED AND WILL CONTINUE TO DIMINISH THROUGH
THE DAY.

$$

HARRISON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 6:27 AM PSTHigh Wind WarningSGXRiverside, San Bernardino, San Diego44 hr

Nearby

Small Craft Advisories in California, 2016Every small craft advisory in 2016

Sources

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