Alert archive / California / Beach Hazards Statements in 2016
Beach Hazards Statement 8, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Apr 20, 2016, 3:12 AM PDT for 6 counties in California. It took effect at Apr 21, 2016, 8:00 AM PDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Apr 20, 2016, 3:12 AM PDT (10:12 UTC)
- In effect from
- Apr 21, 2016, 8:00 AM PDT
- Expired
- Apr 21, 2016, 11:00 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 10:13 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, 10.2 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
- 3917 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
659 WHUS46 KMTR 201012 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 312 AM PDT WED APR 20 2016 AN ENERGETIC WESTERLY SWELL IS EXPECTED TO ENTER THE COASTAL WATERS THURSDAY MORNING. THESE ENERGETIC WAVES WILL PRODUCE STRONG RIP CURRENTS AND LARGE SHORE BREAK PRIMARILY ON WESTERLY FACING BEACHES THURSDAY MORNING THROUGH THURSDAY EVENING ALONG THE COAST FROM SONOMA COUNTY SOUTH INTO MONTEREY COUNTY. CAZ006-505-509-529-530-202115- /O.NEW.KMTR.BH.S.0008.160421T1500Z-160422T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 312 AM PDT WED APR 20 2016 ...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A BEACH HAZARDS STATEMENT FOR STRONG RIP CURRENTS AND LARGE SHORE BREAK...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING. * HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK. * TIMING...AN ENERGETIC WESTERLY SWELL WILL ENTER THE COASTAL WATERS THURSDAY MORNING AND PERSIST THROUGH THURSDAY EVENING. * LOCATION...PRIMARILY WESTERLY FACING BEACHES FROM COASTAL SONOMA COUNTY SOUTH INTO COASTAL MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE MOST EXPERIENCED SWIMMER QUICKLY OUT TO SEA. LARGE SHORE BREAK CAN RESULT IN BACK AND NECK INJURIES FOR THOSE CAUGHT IN THESE SHALLOW WATER BREAKING 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 LONG SHORECURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
4 follow-up statements
137 WHUS46 KMTR 202040 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 140 PM PDT WED APR 20 2016 CAZ006-505-509-529-530-211400- /O.CON.KMTR.BH.S.0008.160421T1500Z-160422T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 140 PM PDT WED APR 20 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... * HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK. * TIMING...AN ENERGETIC WESTERLY SWELL WILL ENTER THE COASTAL WATERS THURSDAY MORNING AND PERSIST THROUGH THURSDAY EVENING. * LOCATION...PRIMARILY WESTERLY FACING BEACHES FROM COASTAL SONOMA COUNTY SOUTH INTO COASTAL MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE MOST EXPERIENCED SWIMMER QUICKLY OUT TO SEA. LARGE SHORE BREAK CAN RESULT IN BACK AND NECK INJURIES FOR THOSE CAUGHT IN THESE SHALLOW WATER BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONG SHORECURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
489 WHUS46 KMTR 211326 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 626 AM PDT THU APR 21 2016 CAZ006-505-509-529-530-212130- /O.CON.KMTR.BH.S.0008.160421T1500Z-160422T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 626 AM PDT THU APR 21 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK. * TIMING...AN ENERGETIC WESTERLY SWELL WILL ENTER THE COASTAL WATERS THIS MORNING AND PERSIST THROUGH THIS EVENING. * LOCATION...PRIMARILY WESTERLY FACING BEACHES FROM COASTAL SONOMA COUNTY SOUTH INTO COASTAL MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE MOST EXPERIENCED SWIMMER QUICKLY OUT TO SEA. LARGE SHORE BREAK CAN RESULT IN BACK AND NECK INJURIES FOR THOSE CAUGHT IN THESE SHALLOW WATER BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THAT POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONG SHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
068 WHUS46 KMTR 211953 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1253 PM PDT THU APR 21 2016 CAZ006-505-509-529-530-220600- /O.CON.KMTR.BH.S.0008.000000T0000Z-160422T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1253 PM PDT THU APR 21 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK. * TIMING...AN ENERGETIC WESTERLY SWELL WILL PERSIST THROUGH THIS EVENING. * LOCATION...PRIMARILY WESTERLY FACING BEACHES FROM COASTAL SONOMA COUNTY SOUTH INTO COASTAL MONTEREY COUNTY. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE MOST EXPERIENCED SWIMMER QUICKLY OUT TO SEA. LARGE SHORE BREAK CAN RESULT IN BACK AND NECK INJURIES FOR THOSE CAUGHT IN THESE SHALLOW WATER BREAKING WAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THAT POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONG SHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
877 WHUS46 KMTR 220555 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1055 PM PDT THU APR 21 2016 CAZ006-505-509-529-530-220700- /O.EXP.KMTR.BH.S.0008.000000T0000Z-160422T0600Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1055 PM PDT THU APR 21 2016 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 11 PM PDT THIS EVENING... $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 2:57 AM PDT | Small Craft Advisory | MTR | 11 hr |
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.