Alert archive / California / High Surf Advisories in 2018
High Surf Advisory 4, NWS San Diego, CA
NWS San Diego, CA issued this high surf advisory at Jul 3, 2018, 1:24 PM PDT for Orange County, San Diego County, California. It took effect at Jul 4, 2018, 6:00 PM PDT. It was in force for 51 hr.
The area
The counties it named.
The facts
- Issued
- Jul 3, 2018, 1:24 PM PDT (20:24 UTC)
- In effect from
- Jul 4, 2018, 6:00 PM PDT
- Expired
- Jul 6, 2018, 9:00 PM PDT
- In force
- 51 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 20:23 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 12:00Z, 8.4 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
- 725 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
High Surf Advisories in California, 2018Every high surf advisory in 2018
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.