Alert archive / California / Beach Hazards Statements in 2012

Beach Hazards Statement 16, NWS San Francisco Bay Area, CA

October 29, 2012Monterey County, Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 29, 2012, 8:49 AM PDT for Monterey County, Santa Cruz County, California. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Oct 29, 2012, 8:49 AM PDT (15:49 UTC)
Expired
Oct 29, 2012, 11:00 PM PDT
In force
14 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Monterey County, CA, Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 62 km from the middle of the area, began a volume at 15:47 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 12:00Z, 3.8 hours before the alert went out and 131 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 12:00Z on 2012-10-29Temperature 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 12:00Z on 2012-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
1538 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
48 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.

520 
WHUS46 KMTR 291549
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
849 AM PDT MON OCT 29 2012

...A HEIGHTENED RISK OF STRONG RIP CURRENTS WILL BE POSSIBLE
TODAY ON WEST FACING BEACHES...


CAZ529-300600-
/O.NEW.KMTR.BH.S.0016.121029T1549Z-121030T0600Z/
NORTHERN MONTEREY BAY-
849 AM PDT MON OCT 29 2012

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

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A BEACH HAZARDS STATEMENT FOR A HEIGHTENED RISK OF STRONG RIP
CURRENTS... WHICH IS IN EFFECT THROUGH THIS EVENING.

* LOCATION...WEST FACING BEACHES ESPECIALLY MANRESA STATE BEACH. 

* TIMING...THROUGH THIS EVENING. 

* IMPACTS...HEIGHTENED RISK OF STRONG RIP CURRENTS.  

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.

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.

&&

$$

CAZ530-300600-
/O.NEW.KMTR.BH.S.0016.121029T1549Z-121030T0600Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
849 AM PDT MON OCT 29 2012

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

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A BEACH HAZARDS STATEMENT FOR A HEIGHTENED RISK OF STRONG RIP
CURRENTS... WHICH IS IN EFFECT THROUGH THIS EVENING.

* LOCATION...WEST FACING BEACHES ESPECIALLY MARINA STATE BEACH. 

* TIMING...THROUGH THIS EVENING. 

* IMPACTS...HEIGHTENED RISK OF STRONG RIP CURRENTS. 

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.

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
1 follow-up statement
944 
WHUS46 KMTR 300551
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1051 PM PDT MON OCT 29 2012

CAZ529-300700-
/O.EXP.KMTR.BH.S.0016.000000T0000Z-121030T0600Z/
NORTHERN MONTEREY BAY-
1051 PM PDT MON OCT 29 2012

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 11 PM PDT THIS
EVENING...

MODEL FORECASTS INDICATE SEA SWELLS WILL DECREASE OVERNIGHT AND
TUESDAY REDUCING THE POSSIBILITY OF RIP CURRENTS.

$$

CAZ530-300700-
/O.EXP.KMTR.BH.S.0016.000000T0000Z-121030T0600Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
1051 PM PDT MON OCT 29 2012

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 11 PM PDT THIS
EVENING...

MODEL FORECASTS INDICATE SEA SWELLS WILL DECREASE OVERNIGHT AND
TUESDAY REDUCING THE POSSIBILITY OF RIP CURRENTS.

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 29, 3:16 AM PDTDense Fog AdvisoryMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more5 hr
Oct 29, 3:34 AM PDTMarine Dense Fog AdvisoryMTR4 hr
Oct 29, 9:49 AM PDTMarine Dense Fog AdvisoryMTR5 hr
Oct 29, 1:20 PM PDTDense Fog AdvisoryMTRMarin, Monterey, Napa, San Benito, City and County of San Francisco, San Mateo and 2 more20 hr

Nearby

Beach Hazards Statements in California, 2012Every beach hazards statement in 2012

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.