Alert archive / California / High Surf Advisories in 2021
High Surf Advisory 3, NWS San Diego, CA
NWS San Diego, CA issued this high surf advisory at Mar 15, 2021, 1:43 AM PDT for Orange County, San Diego County, California. It took effect at Mar 15, 2021, 4:00 PM PDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Mar 15, 2021, 1:43 AM PDT (08:43 UTC)
- In effect from
- Mar 15, 2021, 4:00 PM PDT
- Expired
- Mar 15, 2021, 10:06 PM PDT
- In force
- 6 hr
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, San Diego County, CA
The radar
The San Diego radar (KNKX), 53 km from the middle of the area, began a volume at 08:46 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
San Diego, CA (KNKX), launched 00:00Z, 8.7 hours before the alert went out and 62 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
- 898 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -89 m²/s²
- 0-3 km storm-relative helicity
- -82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
890 WHUS46 KSGX 150843 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 143 AM PDT Mon Mar 15 2021 .A large, short-period wind swell will build quickly today, peak tonight and subside quickly Tuesday. Strong rip currents and hazardous swimming conditions will result. CAZ552-152100- /O.NEW.KSGX.SU.Y.0003.210315T2300Z-210316T1500Z/ Orange County Coastal Areas- 143 AM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 8 AM PDT TUESDAY... The National Weather Service in San Diego has issued a High Surf Advisory...which is in effect from 4 PM this afternoon to 8 AM PDT Tuesday. * Waves and Surf...3 to 6 feet. Sets to 7 feet. * Timing...This afternoon into Tuesday morning. * Impacts...Strong rip currents and steep, wind-driven surf will generate hazardous swimming conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ043-152100- /O.NEW.KSGX.SU.Y.0003.210315T2300Z-210316T2300Z/ San Diego County Coastal Areas- 143 AM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PDT TUESDAY... The National Weather Service in San Diego has issued a High Surf Advisory...which is in effect from 4 PM this afternoon to 4 PM PDT Tuesday. * Waves and Surf...4 to 7 feet. * Timing...This afternoon into Tuesday afternoon. * Impacts...Strong rip currents and steep, wind-driven surf will generate hazardous swimming conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$
2 follow-up statements
325 WHUS46 KSGX 151917 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 1217 PM PDT Mon Mar 15 2021 .A large, short-period wind swell will peak tonight and subside quickly Tuesday. Strong rip currents and hazardous swimming conditions will result. CAZ552-160515- /O.CON.KSGX.SU.Y.0003.210315T2300Z-210316T1500Z/ Orange County Coastal Areas- 1217 PM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 8 AM PDT TUESDAY... * Waves and Surf...3 to 6 feet. Sets to 7 feet. * Timing...This afternoon into Tuesday morning. * Impacts...Strong rip currents and steep, wind-driven surf will generate hazardous swimming conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ043-160515- /O.CON.KSGX.SU.Y.0003.210315T2300Z-210316T2300Z/ San Diego County Coastal Areas- 1217 PM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PDT TUESDAY... * Waves and Surf...5 to 7 feet. * Timing...This afternoon into Tuesday afternoon. * Impacts...Strong rip currents and steep, wind-driven surf will generate hazardous swimming conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CO https://www.weather.gov/sandiego
845 WHUS46 KSGX 160506 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 1006 PM PDT Mon Mar 15 2021 CAZ552-160615- /O.CAN.KSGX.SU.Y.0003.000000T0000Z-210316T1500Z/ Orange County Coastal Areas- 1006 PM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY IS CANCELLED... The National Weather Service in San Diego has cancelled the High Surf Advisory. Surf with remain below the High Surf Advisory levels of 7 feet tonight and Tuesday. $$ CAZ043-160615- /O.CAN.KSGX.SU.Y.0003.000000T0000Z-210316T2300Z/ San Diego County Coastal Areas- 1006 PM PDT Mon Mar 15 2021 ...HIGH SURF ADVISORY IS CANCELLED... The National Weather Service in San Diego has cancelled the High Surf Advisory. Surf with remain below the High Surf Advisory criteria of widespread surf of 7 feet or greater tonight and Tuesday. $$ Moede
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 1:01 PM PDT | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 19 hr |
Nearby
High Surf Advisories in California, 2021Every high surf advisory in 2021
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.