Alert archive / California / High Surf Advisories in 2012
High Surf Advisory 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this high surf advisory at Jan 20, 2012, 10:14 AM PST for 6 counties in California. It took effect at Jan 21, 2012, 10:00 AM PST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Jan 20, 2012, 10:14 AM PST (18:14 UTC)
- In effect from
- Jan 21, 2012, 10:00 AM PST
- Expired
- Jan 22, 2012, 10:00 AM PST
- In force
- 24 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 18:17 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
Vandenberg AFB, CA (KVBG), launched 12:00Z, 6.2 hours before the alert went out and 349 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 751 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
255 WHUS46 KMTR 201814 CFWMTR URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1014 AM PST FRI JAN 20 2012 CAZ505-210700- /O.NEW.KMTR.SU.Y.0002.120121T1800Z-120122T1800Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 1014 AM PST FRI JAN 20 2012 ...HIGH SURF ADVISORY IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS SATURDAY INTO SUNDAY. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 9:21 AM SATURDAY MORNING. * TIMING: LATE SATURDAY MORNING UNTIL LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. * PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ CAZ006-509-529-530-210700- /O.NEW.KMTR.SU.Y.0002.120122T0000Z-120122T1800Z/ SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1014 AM PST FRI JAN 20 2012 ...HIGH SURF ADVISORY IN EFFECT FROM 4 PM SATURDAY TO 10 AM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 4 PM SATURDAY TO 10 AM PST SUNDAY. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS SATURDAY AFTERNOON INTO SUNDAY MORNING. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 9:21 AM SATURDAY MORNING. * TIMING: LATE SATURDAY AFTERNOON UNTIL LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ HTTP://WWW.WEATHER.GOV/SANFRANCISCO
4 follow-up statements
735 WHUS46 KMTR 210620 CFWMTR URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1020 PM PST FRI JAN 20 2012 CAZ505-211800- /O.CON.KMTR.SU.Y.0002.120121T1800Z-120122T1800Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 1020 PM PST FRI JAN 20 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY... * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS SATURDAY INTO SUNDAY. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 9:21 AM SATURDAY MORNING. * TIMING: LATE SATURDAY MORNING UNTIL LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. * PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ CAZ006-509-529-530-211800- /O.CON.KMTR.SU.Y.0002.120122T0000Z-120122T1800Z/ SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1020 PM PST FRI JAN 20 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 PM SATURDAY TO 10 AM PST SUNDAY... * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS SATURDAY AFTERNOON INTO SUNDAY MORNING. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 9:21 AM SATURDAY MORNING. * TIMING: LATE SATURDAY AFTERNOON UNTIL LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ HTTP://WWW.WEATHER.GOV/SANFRANCISCO
012 WHUS46 KMTR 211936 CFWMTR URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1136 AM PST SAT JAN 21 2012 CAZ505-221200- /O.CON.KMTR.SU.Y.0002.000000T0000Z-120122T1800Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 1136 AM PST SAT JAN 21 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS TODAY INTO SUNDAY. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 9:21 AM SATURDAY MORNING. * TIMING: LARGE WESTERLY SWELLS WILL IMPACT THE COASTLINE THROUGH LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. * PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ CAZ006-509-529-530-221200- /O.CON.KMTR.SU.Y.0002.120122T0000Z-120122T1800Z/ SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1136 AM PST SAT JAN 21 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST SUNDAY... A HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST SUNDAY. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 18 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS THIS AFTERNOON INTO SUNDAY MORNING. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT * TIMING: LATE THIS AFTERNOON UNTIL LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ HTTP://WWW.WEATHER.GOV/SANFRANCISCO
059 WHUS46 KMTR 221333 CFWMTR URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 533 AM PST SUN JAN 22 2012 CAZ505-221800- /O.CON.KMTR.SU.Y.0002.000000T0000Z-120122T1800Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 533 AM PST SUN JAN 22 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 17 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS TODAY. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIDE: HIGH TIDE IS 6.8 FEET AT 10:13 AM SUNDAY MORNING. * TIMING: LARGE WESTERLY SWELLS WILL IMPACT THE COASTLINE THROUGH LATE SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. * PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ CAZ006-509-529-530-221800- /O.CON.KMTR.SU.Y.0002.000000T0000Z-120122T1800Z/ SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 533 AM PST SUN JAN 22 2012 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. * WAVES AND SURF: LARGE WESTERLY SWELLS OF 14 TO 17 FEET WITH A PERIOD OF 13 TO 14 SECONDS WILL IMPACT THE COASTAL WATERS THIS MORNING. THE SWELL HEIGHT COMBINED WITH A LONG PERIOD WILL RESULT IN HAZARDOUS CONDITIONS. LOCAL BEACHES COULD SEE LARGE BREAKING WAVES IN EXCESS OF 20 FT. * TIMING: SUNDAY MORNING. * IMPACTS: LARGE WESTERLY SWELLS WILL CREATE A DANGEROUS NEAR SHORE ENVIRONMENT. THESE CONDITIONS WILL RESULT IN STRONG RIP CURRENTS AND POSSIBLE SNEAKER WAVES. STEEPER BEACHES... PARTICULARLY WEST FACING ONES...WILL POTENTIALLY SEE LARGE BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION. && $$ HTTP://WWW.WEATHER.GOV/SANFRANCISCO
803 WHUS46 KMTR 221742 CFWMTR URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 942 AM PST SUN JAN 22 2012 ...HIGH SURF ADVISORY EXPIRES AT 10 AM THIS MORNING... CAZ505-221845- /O.EXP.KMTR.SU.Y.0002.000000T0000Z-120122T1800Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 942 AM PST SUN JAN 22 2012 ...HIGH SURF ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... THE HIGH SURF ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING. EVEN THOUGH WAVE HEIGHTS ARE STILL AROUND 15 FEET...THE PERIOD OF HIGHEST WAVES HAS NOW PEAKED AND WILL CONTINUE TO SLOWLY SUBSIDE INTO THIS AFTERNOON. IN ADDITION THE HIGHEST TIDES ARE OCCURRING RIGHT NOW AND WILL CONTINUE TO LEAD INTO A NEGATIVE LOW TIDE THIS AFTERNOON. EVEN THOUGH THE HIGH SURF ADVISORY IS NO LONGER IN EFFECT BEACH GOERS AND OTHER VISITORS TO THE COAST SHOULD USE EXTREME CAUTION THE REST OF THIS AFTERNOON. $$ CAZ006-509-529-530-221845- /O.EXP.KMTR.SU.Y.0002.000000T0000Z-120122T1800Z/ SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 942 AM PST SUN JAN 22 2012 ...HIGH SURF ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... THE HIGH SURF ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING. EVEN THOUGH WAVE HEIGHTS ARE STILL AROUND 15 FEET...THE PERIOD OF HIGHEST WAVES HAS NOW PEAKED AND WILL CONTINUE TO SLOWLY SUBSIDE INTO THIS AFTERNOON. IN ADDITION THE HIGHEST TIDES ARE OCCURRING RIGHT NOW AND WILL CONTINUE TO LEAD INTO A NEGATIVE LOW TIDE THIS AFTERNOON. EVEN THOUGH THE HIGH SURF ADVISORY IS NO LONGER IN EFFECT BEACH GOERS AND OTHER VISITORS TO THE COAST SHOULD USE EXTREME CAUTION THE REST OF THIS AFTERNOON. $$ HTTP://WWW.WEATHER.GOV/SANFRANCISCO
Nearby
High Surf Advisories in California, 2012Every high surf advisory 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.