Alert archive / California / Areal Flood Advisories in 2012
Areal Flood Advisory 13, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this areal flood advisory at Dec 23, 2012, 4:04 PM PST for 4 counties in California. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Dec 23, 2012, 4:04 PM PST (00:04 UTC)
- Expired
- Dec 23, 2012, 7:00 PM PST
- In force
- 3 hr
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Storm-based polygon
Counties Alameda County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA
The radar
The San Francisco radar (KMUX), 22 km from the middle of the area, began a volume at 00:04 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.
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this areal flood advisory went out at Dec 23, 3:56 PM PST, 8 minutes earlier.
Area forecast discussion, Dec 23, 3:56 PM PST, 8 minutes before
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</html>Hazardous weather outlook, Dec 23, 5:40 AM PST, 10 hours 24 minutes before
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
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 4:43 PM PST | Flash Flood Warning | MTR | Santa Cruz | 2 hr |
| Dec 23, 5:05 PM PST | Flash Flood Warning | MTR | San Mateo, Santa Cruz | 115 min |
| Dec 23, 7:01 PM PST | Flash Flood Warning | MTR | Santa Cruz | 108 min |
| Dec 23, 7:04 PM PST | Flash Flood Warning | MTR | San Mateo, Santa Cruz | 86 min |
| Dec 23, 7:30 PM PST | Areal Flood Warning | MTR | San Mateo, Santa Clara | 105 min |
| Dec 23, 8:11 PM PST | Areal Flood Advisory | MTR | Monterey, San Benito, Santa Clara, Santa Cruz | 94 min |
| Dec 24, 2:41 PM PST | Small Craft Advisory | MTR | 3 days |
Nearby
Areal Flood Advisories in California, 2012Every areal flood advisory in 2012
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.