Alert archive / California / Beach Hazards Statements in 2019
Beach Hazards Statement 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Mar 18, 2019, 2:32 PM PDT for 6 counties in California. It took effect at Mar 19, 2019, 4:00 AM PDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Mar 18, 2019, 2:32 PM PDT (21:32 UTC)
- In effect from
- Mar 19, 2019, 4:00 AM PDT
- Expired
- Mar 19, 2019, 11:00 PM PDT
- In force
- 19 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 21:32 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 12:00Z, 9.5 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
- 1922 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
664 WHUS46 KMTR 182132 CFWMTR Coastal Hazard Message National Weather Service San Francisco Bay Area 232 PM PDT Mon Mar 18 2019 ...INCREASED RISK OF SNEAKER WAVES TUESDAY.. .A long period westerly swell will arrive early Tuesday morning and bring an increase risk of sneaker waves throughout the day and into the evening. Expect long lulls between largest sets. Beachgoers should use caution along area beaches. The risk of sneaker waves will decrease as the period decreases Tuesday night. CAZ006-505-509-529-530-191000- /O.NEW.KMTR.BH.S.0002.190319T1100Z-190320T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 232 PM PDT Mon Mar 18 2019 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING... The National Weather Service in San Francisco has issued a Beach Hazards Statement for increased risk of sneaker waves, which is in effect from late tonight through Tuesday evening. * HAZARDS...Increased risk of sneaker waves on northern and central California beaches. * TIMING...Tuesday 4 AM to 11 PM. * LOCATION...Coastline from Sonoma County south through Monterey County. In particular west facing beaches...including but not limited to...Ocean beach...Montara State Beach...Halfmoon Bay State Beach...Manresa State Beach...Monastery Beach and Marina State Beach. * POTENTIAL IMPACTS...Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches than normally expected. Unsuspecting beach-goers may be suddenly pulled out to sea. Never turn your back to the ocean! PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement for sneaker waves means that conditions are present to support a heightened risk of unsuspecting beach goers being swept into the sea by a wave. People walking along the beach should never turn their back to the sea. Fisherman should avoid fishing from rocks or jetties. && $$
3 follow-up statements
342 WHUS46 KMTR 191000 CFWMTR Coastal Hazard Message National Weather Service San Francisco Bay Area 300 AM PDT Tue Mar 19 2019 ...INCREASED RISK OF SNEAKER WAVES TODAY.. .A long period westerly swell will arrive today bringing an increase risk of sneaker waves through this evening. Expect long lulls between the largest sets. Beachgoers should use caution along area beaches. The risk of sneaker waves will decrease as the period decreases tonight. CAZ006-505-509-529-530-192200- /O.CON.KMTR.BH.S.0002.190319T1100Z-190320T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 300 AM PDT Tue Mar 19 2019 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * HAZARDS...Increased risk of sneaker waves on northern and central California beaches. * TIMING...Tuesday 4 AM to 11 PM. * LOCATION...Coastline from Sonoma County south through Monterey County. In particular west facing beaches...including but not limited to...Ocean beach...Montara State Beach...Halfmoon Bay State Beach...Manresa State Beach...Monastery Beach and Marina State Beach. * POTENTIAL IMPACTS...Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches than normally expected. Unsuspecting beach-goers may be suddenly pulled out to sea. Never turn your back to the ocean! PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement for sneaker waves means that conditions are present to support a heightened risk of unsuspecting beach goers being swept into the sea by a wave. People walking along the beach should never turn their back to the sea. Fisherman should avoid fishing from rocks or jetties. && $$
381 WHUS46 KMTR 192056 CFWMTR Coastal Hazard Message National Weather Service San Francisco Bay Area 156 PM PDT Tue Mar 19 2019 ...INCREASED RISK OF SNEAKER WAVES UNTIL THIS EVENING.. .A long period westerly swell will bring an increase risk of sneaker waves through this evening. Expect long lulls between the largest sets. Beachgoers should use caution along area beaches. The risk of sneaker waves will decrease as the period decreases tonight. CAZ006-505-509-529-530-200600- /O.CON.KMTR.BH.S.0002.000000T0000Z-190320T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 156 PM PDT Tue Mar 19 2019 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * HAZARDS...Increased risk of sneaker waves on northern and central California beaches. * TIMING...Until 11 PM Tuesday. * LOCATION...Coastline from Sonoma County south through Monterey County. In particular west facing beaches...including but not limited to...Ocean beach...Montara State Beach...Halfmoon Bay State Beach...Manresa State Beach...Monastery Beach and Marina State Beach. * POTENTIAL IMPACTS...Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches than normally expected. Unsuspecting beach-goers may be suddenly pulled out to sea. Never turn your back to the ocean! PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement for sneaker waves means that conditions are present to support a heightened risk of unsuspecting beach goers being swept into the sea by a wave. People walking along the beach should never turn their back to the sea. Fisherman should avoid fishing from rocks or jetties. && $$
473 WHUS46 KMTR 200552 CFWMTR Coastal Hazard Message National Weather Service San Francisco Bay Area 1052 PM PDT Tue Mar 19 2019 CAZ006-505-509-529-530-200700- /O.EXP.KMTR.BH.S.0002.000000T0000Z-190320T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 1052 PM PDT Tue Mar 19 2019 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 11 PM PDT THIS EVENING... $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 2:25 AM PDT | Small Craft Advisory | MTR | 10 hr |
Nearby
Beach Hazards Statements in California, 2019Every beach hazards statement in 2019
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.