Alert archive / California / Beach Hazards Statements in 2016

Beach Hazards Statement 12, NWS San Francisco Bay Area, CA

June 22, 20164 counties in California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Jun 22, 2016, 7:29 PM PDT for 4 counties in California. It took effect at Jun 23, 2016, 6:00 AM PDT. It was in force for 63 hr.

The area

The counties it named.

The facts

Issued
Jun 22, 2016, 7:29 PM PDT (02:29 UTC)
In effect from
Jun 23, 2016, 6:00 AM PDT
Expired
Jun 25, 2016, 9:00 PM PDT
In force
63 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Marin County, CA, Monterey County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 46 km from the middle of the area, began a volume at 02:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Oakland, CA (KOAK), launched 00:00Z, 2.5 hours before the alert went out and 30 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 00:00Z on 2016-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 00:00Z on 2016-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2389 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

612 
WHUS46 KMTR 230229
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
729 PM PDT WED JUN 22 2016

CAZ505-529-530-231030-
/O.NEW.KMTR.BH.S.0012.160623T1300Z-160625T1300Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
729 PM PDT WED JUN 22 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM 6 AM PDT THURSDAY
THROUGH LATE FRIDAY NIGHT...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...BEGINNING 6 AM PDT THURSDAY AND LASTING AT LEAST
  THROUGH LATE FRIDAY NIGHT.

* LOCATION...FROM THE BIG SUR COAST TO SONOMA COUNTY COAST.

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BRAK CAN RESULT
  IN SERIOUS NECK AND BACK INJURIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.


&&

$$
6 follow-up statements
658 
WHUS46 KMTR 230233 CCA
CFWMTR

COASTAL HAZARD MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
733 PM PDT WED JUN 22 2016

CAZ505-529-530-231600-
/O.COR.KMTR.BH.S.0012.160623T1300Z-160625T1300Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
733 PM PDT WED JUN 22 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM 6 AM PDT THURSDAY
THROUGH LATE FRIDAY NIGHT...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...BEGINNING 6 AM PDT THURSDAY AND LASTING AT LEAST
  THROUGH LATE FRIDAY NIGHT.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY...INCLUDING
  COASTAL NORTH BAY.

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BRAK CAN RESULT
  IN SERIOUS NECK AND BACK INJURIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.


&&

$$
816 
WHUS46 KMTR 231342
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
642 AM PDT THU JUN 23 2016

CAZ505-529-530-240600-
/O.CON.KMTR.BH.S.0012.000000T0000Z-160625T1300Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
642 AM PDT THU JUN 23 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE FRIDAY
NIGHT...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...NOW THROUGH LATE FRIDAY NIGHT.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY...INCLUDING 
  COASTAL NORTH BAY. 

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE 
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BRAK CAN 
  RESULT IN SERIOUS NECK AND BACK INJURIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.

&&

$$
858 
WHUS46 KMTR 240528
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1028 PM PDT THU JUN 23 2016

CAZ505-529-530-241800-
/O.CON.KMTR.BH.S.0012.000000T0000Z-160625T1300Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
1028 PM PDT THU JUN 23 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE FRIDAY
NIGHT...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...NOW THROUGH LATE FRIDAY NIGHT.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY. ALSO...COASTAL
  NORTH BAY.

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE 
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BREAK CAN 
  RESULT IN SERIOUS NECK AND BACK INJURIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.

&&

$$
347 
WHUS46 KMTR 242156
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
256 PM PDT FRI JUN 24 2016


CAZ505-529-530-251200-
/O.EXT.KMTR.BH.S.0012.000000T0000Z-160626T0400Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
256 PM PDT FRI JUN 24 2016

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SATURDAY
EVENING...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...NOW THROUGH LATE FRIDAY NIGHT.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY. ALSO... 
  COASTAL NORTH BAY. 

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE 
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BREAK CAN 
  RESULT IN SERIOUS NECK AND BACK INJURIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.

&&

$$
018 
WHUS46 KMTR 242215
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
315 PM PDT FRI JUN 24 2016

CAZ505-529-530-251200-
/O.CON.KMTR.BH.S.0012.000000T0000Z-160626T0400Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
315 PM PDT FRI JUN 24 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
EVENING...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...NOW THROUGH SATURDAY EVENING.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY. ALSO... 
  COASTAL NORTH BAY. 

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE 
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BREAK CAN 
  RESULT IN SERIOUS NECK AND BACK INJURIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.

&&

$$
020 
WHUS46 KMTR 252148
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
248 PM PDT SAT JUN 25 2016

CAZ505-529-530-260400-
/O.CON.KMTR.BH.S.0012.000000T0000Z-160626T0400Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
248 PM PDT SAT JUN 25 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK.

* TIMING...NOW THROUGH SATURDAY EVENING.

* LOCATION...FROM THE BIG SUR COAST TO MONTEREY BAY. ALSO...
  COASTAL NORTH BAY. IN PARTICULAR SOUTHWEST FACING BEACHES...INCLUDING
  BUT NOT LIMITED TO...STINSON BEACH...SANTA CRUZ BOARDWALK BEACH
  AND TWIN LAKES BEACH.

* POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE 
  STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BREAK CAN 
  RESULT IN SERIOUS NECK AND BACK INJURIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A
RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE.

&&

$$

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 7:57 AM PDTSmall Craft AdvisoryMTR15 hr

Nearby

Beach Hazards Statements in California, 2016Every beach hazards statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.