Alert archive / California / Beach Hazards Statements in 2015
Beach Hazards Statement 10, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 9, 2015, 3:30 AM PDT for 6 counties in California. It took effect at Oct 10, 2015, 7:00 AM PDT. It was in force for 38 hr.
The area
The counties it named.
The facts
- Issued
- Oct 9, 2015, 3:30 AM PDT (10:30 UTC)
- In effect from
- Oct 10, 2015, 7:00 AM PDT
- Expired
- Oct 11, 2015, 9:00 PM PDT
- In force
- 38 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 10:32 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, 10.5 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2568 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
249 WHUS46 KMTR 091030 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 330 AM PDT FRI OCT 9 2015 ...STRONG RIP CURRENTS WILL BE POSSIBLE ON SATURDAY... A LONG PERIOD WEST SOUTHWESTERLY SWELL WILL BEGIN TO MOVE INTO THE COASTAL WATERS THIS EVENING...PROMOTING A HIGH RISK OF STRONG RIPS CURRENTS ALONG THE COAST THROUGH AT LEAST SATURDAY EVENING. A LARGER NORTHWESTERLY SWELL WILL ENTER THE COASTAL WATERS SATURDAY NIGHT AND WILL PERSIST THROUGH SUNDAY. THIS SWELL WILL ALSO SUPPORT THE POSSIBILITY OF STRONG RIP CURRENTS AT LOCAL BEACHES AS WELL. CAZ006-505-509-529-530-092200- /O.NEW.KMTR.BH.S.0010.151010T1400Z-151011T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 330 AM PDT FRI OCT 9 2015 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A BEACH HAZARDS STATEMENT FOR STRONG RIP CURRENTS...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING. * HAZARDS...A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...A LONG PERIOD SWELL WILL ENTER THE COASTAL WATERS THIS EVENING AND WILL PROMOTE STRONG RIP CURRENTS THROUGH AT LEAST SATURDAY EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. 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. && $$
7 follow-up statements
554 WHUS46 KMTR 092017 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 117 PM PDT FRI OCT 9 2015 ...STRONG RIP CURRENTS WILL BE POSSIBLE ON SATURDAY... A LONG PERIOD WEST SOUTHWESTERLY SWELL WILL BEGIN TO MOVE INTO THE COASTAL WATERS THIS EVENING...PROMOTING A HIGH RISK OF STRONG RIPS CURRENTS ALONG THE COAST THROUGH AT LEAST SATURDAY EVENING. A LARGER NORTHWESTERLY SWELL WILL ENTER THE COASTAL WATERS SATURDAY NIGHT AND WILL PERSIST THROUGH SUNDAY. THIS SWELL WILL ALSO SUPPORT THE POSSIBILITY OF STRONG RIP CURRENTS AT LOCAL BEACHES AS WELL. CAZ006-505-509-529-530-101400- /O.CON.KMTR.BH.S.0010.151010T1400Z-151011T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 117 PM PDT FRI OCT 9 2015 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * HAZARDS...A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...A LONG PERIOD SWELL WILL ENTER THE COASTAL WATERS THIS EVENING AND WILL PROMOTE STRONG RIP CURRENTS THROUGH AT LEAST SATURDAY EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS. RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP CURRENT BEFORE TRYING TO SWIM FOR SHORE. SWIMMERS SHOULD ALWAYS SWIM NEAR A LIFEGUARD. && $$
958 WHUS46 KMTR 101331 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 631 AM PDT SAT OCT 10 2015 ...STRONG RIP CURRENTS WILL BE POSSIBLE THROUGH THIS EVENING... AN ENERGETIC WEST SOUTHWESTERLY SWELL IS CURRENTLY MOVING THROUGH THE COASTAL WATERS...PROMOTING A HIGH RISK OF STRONG RIPS CURRENTS AT LOCAL BEACHES THROUGH AT LEAST THIS EVENING. A LARGER NORTHWESTERLY SWELL WILL ENTER THE COASTAL WATERS TONIGHT AND WILL PERSIST THROUGH SUNDAY. THIS SWELL WILL ALSO SUPPORT THE POSSIBILITY OF STRONG RIP CURRENTS AT LOCAL BEACHES AS WELL. CAZ006-505-509-529-530-102145- /O.CON.KMTR.BH.S.0010.151010T1400Z-151011T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 631 AM PDT SAT OCT 10 2015 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * HAZARDS...A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...AN ENERGETIC SWELL WILL PASS THROUGH THE COASTAL WATERS TODAY PROMOTING STRONG RIP CURRENTS THROUGH AT LEAST THIS EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. 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. && $$
539 WHUS46 KMTR 102105 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 205 PM PDT SAT OCT 10 2015 ...STRONG RIP CURRENTS WILL BE POSSIBLE THROUGH THIS EVENING... AN ENERGETIC WEST SOUTHWESTERLY SWELL IS CURRENTLY MOVING THROUGH THE COASTAL WATERS...PROMOTING A HIGH RISK OF STRONG RIPS CURRENTS AT LOCAL BEACHES THROUGH AT LEAST THIS EVENING. A LARGER NORTHWESTERLY SWELL WILL ENTER THE COASTAL WATERS TONIGHT AND WILL PERSIST THROUGH SUNDAY. THIS SWELL WILL ALSO SUPPORT THE POSSIBILITY OF STRONG RIP CURRENTS AT LOCAL BEACHES AS WELL. CAZ006-505-509-529-530-110515- /O.CON.KMTR.BH.S.0010.000000T0000Z-151011T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 205 PM PDT SAT OCT 10 2015 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * HAZARDS...A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...AN ENERGETIC SWELL WILL PASS THROUGH THE COASTAL WATERS TODAY PROMOTING STRONG RIP CURRENTS THROUGH AT LEAST THIS EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS. RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A RIP CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP CURRENT BEFORE TRYING TO SWIM FOR SHORE. SWIMMERS SHOULD ALWAYS SWIM NEAR A LIFEGUARD. && $$
607 WHUS46 KMTR 110549 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1049 PM PDT SAT OCT 10 2015 ...STRONG RIP CURRENTS WILL BE POSSIBLE THROUGH SUNDAY MORNING... AN ENERGETIC WEST SOUTHWESTERLY SWELL IS CURRENTLY MOVING THROUGH THE COASTAL WATERS...PRODUCING A HIGH RISK OF STRONG RIPS CURRENTS AT LOCAL BEACHES THROUGH AT SUNDAY MORNING. THIS SWELL WILL ALSO SUPPORT THE POSSIBILITY OF STRONG RIP CURRENTS AT LOCAL BEACHES AS WELL. CAZ006-505-509-529-530-111800- /O.EXT.KMTR.BH.S.0010.000000T0000Z-151011T1800Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1049 PM PDT SAT OCT 10 2015 ...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SUNDAY MORNING... * HAZARDS...A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...AN ENERGETIC SWELL WILL PASS THROUGH THE COASTAL WATERS PRODUCING STRONG RIP CURRENTS THROUGH AT SUNDAY MORNING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. 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. && $$
503 WHUS46 KMTR 111000 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 300 AM PDT SUN OCT 11 2015 ...STRONG RIP CURRENTS AND LARGE BREAKING WAVES WILL BE POSSIBLE THROUGH THIS EVENING... SEAS ARE EXPECTED TO BUILD TODAY AS AN ENERGETIC NORTHWEST SWELL PASSES THROUGH THE COASTAL WATERS. THIS ENERGETIC SWELL WILL RESULT IN LARGE BREAKING WAVES AND STRONG RIP CURRENTS PERIODICALLY AT AREA BEACHES THROUGHOUT THE DAY TODAY INTO THE EVENING HOURS. CAZ006-505-509-529-530-112200- /O.EXT.KMTR.BH.S.0010.000000T0000Z-151012T0400Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 300 AM PDT SUN OCT 11 2015 ...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH THIS EVENING... * HAZARDS...LARGE BREAKING WAVES AND A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...AN ENERGETIC SWELL WILL PASS THROUGH THE COASTAL WATERS PRODUCING LARGE BREAKING WAVES AND STRONG RIP CURRENTS THROUGH THIS EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...LARGE BREAKING WAVES CAN OVER COME SWIMMER AND ALSO WASH BEACH VISITORS FROM ROCKS AND JETTIES. STRONG RIP CURRENTS ACCOMPANYING THESE WAVES CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
071 WHUS46 KMTR 112111 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 211 PM PDT SUN OCT 11 2015 ...STRONG RIP CURRENTS AND LARGE BREAKING WAVES WILL BE POSSIBLE THROUGH THIS EVENING... AN ENERGETIC NORTHWEST SWELL WILL CONTINUE TO PASS THROUGH THE COASTAL WATERS. THIS ENERGETIC SWELL WILL RESULT IN LARGE BREAKING WAVES AND STRONG RIP CURRENTS PERIODICALLY AT AREA BEACHES INTO THE EVENING HOURS. CAZ006-505-509-529-530-120400- /O.CON.KMTR.BH.S.0010.000000T0000Z-151012T0400Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 211 PM PDT SUN OCT 11 2015 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * HAZARDS...LARGE BREAKING WAVES AND A HEIGHTENED RISK OF STRONG RIP CURRENTS. * TIMING...AN ENERGETIC SWELL WILL PASS THROUGH THE COASTAL WATERS PRODUCING LARGE BREAKING WAVES AND STRONG RIP CURRENTS THROUGH THIS EVENING. * LOCATION...ALL BEACHES ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. * POTENTIAL IMPACTS...LARGE BREAKING WAVES CAN OVER COME SWIMMERS AND ALSO WASH BEACH VISITORS FROM ROCKS AND JETTIES. STRONG RIP CURRENTS ACCOMPANYING THESE WAVES CAN QUICKLY PULL SWIMMERS INTO DEEP WATER. 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. && $$
488 WHUS46 KMTR 120337 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 837 PM PDT SUN OCT 11 2015 CAZ006-505-509-529-530-120445- /O.EXP.KMTR.BH.S.0010.000000T0000Z-151012T0400Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 837 PM PDT SUN OCT 11 2015 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 9 PM PDT THIS EVENING... THE HIGHEST WAVES AND LONGEST PERIOD SWELLS HAVE PEAKED AND WILL CONTINUE TO SLOWLY SUBSIDE OVERNIGHT INTO MONDAY MORNING. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 3:06 AM PDT | Small Craft Advisory | MTR | 23 hr |
Nearby
Beach Hazards Statements in California, 2015Every beach hazards statement in 2015
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.