Alert archive / California / Beach Hazards Statements in 2014

Beach Hazards Statement 3, NWS San Francisco Bay Area, CA

April 5, 20146 counties in California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Apr 5, 2014, 2:52 AM PDT for 6 counties in California. It took effect at Apr 6, 2014, 5:00 AM PDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Apr 5, 2014, 2:52 AM PDT (09:52 UTC)
In effect from
Apr 6, 2014, 5:00 AM PDT
Expired
Apr 6, 2014, 8:00 PM PDT
In force
15 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 09:57 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, 9.9 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 2014-04-05Temperature 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 2014-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.19395878Sfc1 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
943 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

611 
WHUS46 KMTR 050952
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
252 AM PDT SAT APR 5 2014

...LONG PERIOD SWELL TO IMPACT THE REGION ON SUNDAY...

.A FAST MOVING LONG PERIOD NORTHWEST SWELL WILL IMPACT THE
COASTAL WATERS ON SUNDAY. THE FAST MOVING SWELL WILL RESULT IN AN
INCREASED THREAT FOR RIP CURRENTS AND SNEAKER WAVES...ESPECIALLY
ON WEST AND NORTHWEST FACING BEACHES.

CAZ006-505-509-529-530-061000-
/O.NEW.KMTR.BH.S.0003.140406T1200Z-140407T0300Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
252 AM PDT SAT APR 5 2014

...BEACH HAZARDS STATEMENT IN EFFECT FROM EARLY SUNDAY MORNING THROUGH
SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A BEACH HAZARDS STATEMENT FOR SNEAKER WAVES AND RIP CURRENTS...
WHICH IS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING. 

* LOCATION...THE ENTIRE COASTLINE FROM SONOMA COUNTY SOUTH
  THROUGH MONTEREY COUNTY.

* TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING.

* IMPACTS...INCREASED RISK FOR RIP CURRENTS AND SNEAKER WAVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS
CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY
INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE
CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE
THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO
2 follow-up statements
609 
WHUS46 KMTR 052141
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
241 PM PDT SAT APR 5 2014

...LONG PERIOD SWELL TO IMPACT THE REGION ON SUNDAY...

.A FAST MOVING LONG PERIOD NORTHWEST SWELL WILL IMPACT THE
COASTAL WATERS LATE TONIGHT INTO SUNDAY. THE FAST MOVING SWELL WILL
RESULT IN AN INCREASED THREAT FOR RIP CURRENTS AND SNEAKER
WAVES...ESPECIALLY ON WEST AND NORTHWEST FACING BEACHES.

CAZ006-505-509-529-530-061000-
/O.CON.KMTR.BH.S.0003.140406T1200Z-140407T0300Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
241 PM PDT SAT APR 5 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE TONIGHT
THROUGH SUNDAY EVENING...

* LOCATION...ALONG COASTLINE FROM SONOMA COUNTY SOUTH THROUGH
  MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING BEACHES
  SUCH AS OCEAN BEACH...MONTARA BEACH AND MARINA BEACH

* TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING.

* IMPACTS...INCREASED RISK FOR RIP CURRENTS AND SNEAKER WAVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT
MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC
BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP
CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES.
ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP
YOUR EYES ON THE OCEAN.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO
255 
WHUS46 KMTR 061146
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
446 AM PDT SUN APR 6 2014

...LONG PERIOD SWELL TO IMPACT THE REGION TODAY...

.A FAST MOVING LONG PERIOD NORTHWEST SWELL WILL IMPACT THE
COASTAL WATERS TODAY. THE FAST MOVING SWELL WILL RESULT IN AN
INCREASED THREAT FOR RIP CURRENTS AND SNEAKER WAVES...ESPECIALLY
ON WEST AND NORTHWEST FACING BEACHES.

CAZ006-505-509-529-530-070300-
/O.CON.KMTR.BH.S.0003.140406T1200Z-140407T0300Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
446 AM PDT SUN APR 6 2014

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

* LOCATION...ALONG COASTLINE FROM SONOMA COUNTY SOUTH THROUGH 
  MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING 
  BEACHES SUCH AS OCEAN BEACH...MONTARA BEACH AND MARINA BEACH 

* TIMING...THROUGH SUNDAY EVENING.

* IMPACTS...INCREASED RISK FOR RIP CURRENTS AND SNEAKER WAVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT
MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC
BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP
CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES.
ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP
YOUR EYES ON THE OCEAN.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 2:33 PM PDTSmall Craft AdvisoryMTR41 hr

Nearby

Beach Hazards Statements in California, 2014Every beach hazards statement in 2014

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.