Alert archive / California / Beach Hazards Statements in 2016

Beach Hazards Statement 2, NWS San Francisco Bay Area, CA

February 7, 20166 counties in California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Feb 7, 2016, 8:44 PM PST for 6 counties in California. It took effect at Feb 8, 2016, 4:00 AM PST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Feb 7, 2016, 8:44 PM PST (04:44 UTC)
In effect from
Feb 8, 2016, 4:00 AM PST
Expired
Feb 8, 2016, 8:00 PM PST
In force
16 hr
Issued by
NWS San Francisco Bay Area, CA

Counties City and County of San Francisco, CA, Marin County, CA, Monterey County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 53 km from the middle of the area, began a volume at 04:49 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, 4.7 hours before the alert went out and 26 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 2016-02-08Temperature 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 2016-02-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 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
2105 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

114 
WHUS46 KMTR 080444
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
844 PM PST SUN FEB 7 2016


CAZ006-505-509-529-530-081245-
/O.NEW.KMTR.BH.S.0002.160208T1200Z-160209T0400Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
844 PM PST SUN FEB 7 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM 4 AM PST MONDAY THROUGH
MONDAY EVENING...

* WAVES...WESTERLY SWELL OF 6 TO 8 FEET WITH A PERIOD OF 17 TO 19
  SECONDS. 

* HAZARDS...INCREASED RISK OF SNEAKER WAVES AND RIP CURRENTS.

* TIMING...MONDAY.

* LOCATION...COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY 
  COUNTY. IN PARTICULAR WEST FACING BEACHES...INCLUDING BUT NOT 
  LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH...HALF MOON BAY 
  STATE BEACH...MANRESA STATE BEACH AND MARINA STATE BEACH 

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. SWIMMERS SHOULD ALWAYS
SWIM NEAR A LIFEGUARD.

A BEACH HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG THE
BEACH SHOULD NEVER TURN THEIR BACK TO THE SEA. FISHERMAN SHOULD
AVOID FISHING FROM ROCKS OR JETTIES.

&&

$$
2 follow-up statements
465 
WHUS46 KMTR 081352
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
552 AM PST MON FEB 8 2016

CAZ006-505-509-529-530-082200-
/O.CON.KMTR.BH.S.0002.000000T0000Z-160209T0400Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
552 AM PST MON FEB 8 2016

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

* WAVES...BUILDING WESTERLY SWELL TODAY OF 6 TO 8 FEET WITH A
  PERIOD OF 18 SECONDS.

* HAZARDS...INCREASED RISK OF SNEAKER WAVES AND RIP CURRENTS
  THROUGH THE DAY.

* TIMING...MONDAY.

* LOCATION...COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY 
  COUNTY. IN PARTICULAR WEST FACING BEACHES...INCLUDING BUT NOT 
  LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH...HALF MOON BAY 
  STATE BEACH...MANRESA STATE BEACH AND MARINA STATE BEACH 

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. SWIMMERS SHOULD ALWAYS
SWIM NEAR A LIFEGUARD.

A BEACH HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD NEVER TURN THEIR BACK TO THE SEA. FISHERMAN
SHOULD AVOID FISHING FROM ROCKS OR JETTIES.

&&

$$
485 
WHUS46 KMTR 082133
CFWMTR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
133 PM PST MON FEB 8 2016

CAZ006-505-509-529-530-090400-
/O.CON.KMTR.BH.S.0002.000000T0000Z-160209T0400Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
133 PM PST MON FEB 8 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM PST THIS
EVENING...

* WAVES...BUILDING WESTERLY SWELL TODAY OF 6 TO 8 FEET WITH A 
  PERIOD OF 17 SECONDS...BECOMING 15 SECONDS THIS EVENING. 

* HAZARDS...INCREASED RISK OF SNEAKER WAVES AND RIP CURRENTS 
  THROUGH THE DAY. 

* TIMING...MONDAY.

* LOCATION...COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY 
  COUNTY. IN PARTICULAR WEST FACING BEACHES...INCLUDING BUT NOT 
  LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH...HALF MOON BAY 
  STATE BEACH...MANRESA STATE BEACH AND MARINA STATE BEACH 

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. SWIMMERS SHOULD ALWAYS
SWIM NEAR A LIFEGUARD.

A BEACH HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD NEVER TURN THEIR BACK TO THE SEA. FISHERMAN
SHOULD AVOID FISHING FROM ROCKS OR JETTIES.

&&

$$

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.