Alert archive / California / High Surf Advisories in 2011
High Surf Advisory 11, NWS San Diego, CA
NWS San Diego, CA issued this high surf advisory at Apr 13, 2011, 1:49 AM PDT for San Diego County, California. It took effect at Apr 13, 2011, 2:00 AM PDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Apr 13, 2011, 1:49 AM PDT (08:49 UTC)
- In effect from
- Apr 13, 2011, 2:00 AM PDT
- Expired
- Apr 13, 2011, 1:22 PM PDT
- In force
- 11 hr
- Issued by
- NWS San Diego, CA
County San Diego County, CA
The radar
The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 08:50 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, 8.8 hours before the alert went out and 47 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
- 0 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before this high surf advisory went out at Apr 12, 9:20 PM PDT, 4 hours 29 minutes earlier.
Area forecast discussion, Apr 12, 9:20 PM PDT, 4 hours 29 minutes before
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</html>Hazardous weather outlook, Apr 12, 4:11 PM PDT, 9 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 411 PM PDT TUE APR 12 2011 CAZ055-056-058-060>062-132315- SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS- SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS- COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS- 411 PM PDT TUE APR 12 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. DEEPENING OF THE MARINE LAYER MAY BRING SOME DRIZZLE TO THE COASTAL AREAS AND VALLEYS LATER TONIGHT AS WELL AS A SLIGHT CHANCE OF RAIN TO THE UPSLOPE AREAS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE ONSHORE WINDS WILL INCREASE ON WEDNESDAY AFTERNOON AND NIGHT...BRINGING GUSTY CONDITIONS OVER THE MOUNTAINS AND DESERTS. AREAS OF BLOWING DUST AND SAND WILL BE POSSIBLE IN THE DESERTS. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER ACTIVATION IS NOT REQUESTED FOR THIS AREA... HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 2:01 AM PDT | Small Craft Advisory | SGX | 25 hr | |
| Apr 13, 3:06 AM PDT | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 17 hr |
Nearby
High Surf Advisories in California, 2011Every high surf advisory in 2011
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.