Alert archive / California / Dense Fog Advisories in 2023
Dense Fog Advisory 21, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this dense fog advisory at Oct 23, 2023, 2:34 AM PDT for Marin County, Napa County, Sonoma County, California. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 23, 2023, 2:34 AM PDT (09:34 UTC)
- Expired
- Oct 23, 2023, 10:00 AM PDT
- In force
- 7 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Marin County, CA, Napa County, CA, Sonoma County, CA
The radar
The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 09:35 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 office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 2:49 PM PDT | Small Craft Advisory | MTR | 6 days |
Nearby
Dense Fog Advisories in California, 2023Every dense fog advisory in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.