Alert archive / California / Alameda County
Weather alerts in Alameda County, California, 2011
35 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alameda County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 35
- Warnings
- 6
- Watches
- 2
- Advisories
- 27
- Busiest month
- January7 alerts
- Busiest day
- February 17, 20113 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 13, 11:16 PM PST | Dense Fog Advisory | MTR | 10 hr |
| Jan 16, 5:21 AM PST | Dense Fog Advisory | MTR | 6 hr |
| Jan 16, 3:00 PM PST | Dense Fog Advisory | MTR | 20 hr |
| Jan 17, 2:24 PM PST | Dense Fog Advisory | MTR | 21 hr |
| Jan 26, 2:59 AM PST | Dense Fog Advisory | MTR | 7 hr |
| Jan 27, 2:31 AM PST | Dense Fog Advisory | MTR | 7 hr |
| Jan 27, 2:14 PM PST | Dense Fog Advisory | MTR | 20 hr |
| Feb 15, 5:22 PM PST | Wind Advisory | MTR | 8 hr |
| Feb 17, 9:03 AM PST | Areal Flood Advisory | MTR | 31 days |
| Feb 17, 9:06 AM PST | Areal Flood Advisory | MTR | 6 hr |
| Feb 17, 12:47 PM PST | Areal Flood Advisory | MTR | 2 hr |
| Feb 25, 7:30 AM PST | Areal Flood Advisory | MTR | 75 min |
| Feb 26, 5:40 AM PST | Freeze Warning | MTR | 26 hr |
| Mar 1, 4:17 AM PST | Wind Advisory | MTR | 26 hr |
| Mar 11, 2:57 PM PST | Tsunami Advisory | AAQ | 17 hr |
| Mar 18, 9:49 AM PDT | High Wind Watch | MTR | 28 hr |
| Mar 19, 1:54 PM PDT | High Wind Warning | MTR | 16 hr |
| Mar 19, 1:54 PM PDT | Wind Advisory | MTR | 16 hr |
| Mar 23, 3:24 PM PDT | Wind Advisory | MTR | 27 hr |
| Mar 23, 3:44 PM PDT | Areal Flood Advisory | MTR | 24 hr |
| Jun 21, 10:28 AM PDT | Heat Advisory | MTR | 10 hr |
| Jul 2, 3:18 AM PDT | Heat Advisory | MTR | 8 hr |
| Jul 2, 3:18 AM PDT | Heat Advisory | MTR | 41 hr |
| Sep 9, 12:02 PM PDT | Fire Weather Watch | MTR | 16 hr |
| Sep 9, 12:02 PM PDT | Red Flag Warning | MTR | 23 hr |
| Nov 26, 2:54 PM PST | Dense Fog Advisory | MTR | 14 hr |
| Nov 27, 6:50 AM PST | Dense Fog Advisory | MTR | 3 hr |
| Nov 27, 7:19 PM PST | Dense Fog Advisory | MTR | 16 hr |
| Nov 28, 9:55 PM PST | Dense Fog Advisory | MTR | 14 hr |
| Nov 29, 3:24 AM PST | Wind Advisory | MTR | 3 days |
| Nov 29, 8:30 PM PST | Dense Fog Advisory | MTR | 13 hr |
| Dec 5, 2:56 AM PST | Frost Advisory | MTR | 30 hr |
| Dec 22, 1:51 PM PST | Freeze Warning | MTR | 19 hr |
| Dec 23, 1:33 PM PST | Freeze Warning | MTR | 19 hr |
| Dec 24, 1:13 PM PST | Freeze Warning | MTR | 20 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Flooding | |
| Areal Flood Advisory | 5 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 12 |
| Coast and beach | |
| Tsunami Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.