Alert archive / California / Heat Advisories in 2016
Heat Advisory 7, NWS San Diego, CA
NWS San Diego, CA issued this heat advisory at Sep 23, 2016, 11:57 AM PDT for 4 counties in California. It took effect at Sep 25, 2016, 11:00 AM PDT. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Sep 23, 2016, 11:57 AM PDT (18:57 UTC)
- In effect from
- Sep 25, 2016, 11:00 AM PDT
- Expired
- Sep 26, 2016, 8:00 PM PDT
- In force
- 33 hr
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 19:00 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, 7.0 hours before the alert went out and 124 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
- 788 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 11:57 AM PDT | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 3 days |
Nearby
Heat Advisories in California, 2016Every heat advisory 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.