Alert archive / Illinois / Cook County
Weather alerts in Cook County, Illinois, 2009
111 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cook County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 111
- Warnings
- 53
- Watches
- 11
- Advisories
- 30
- Busiest month
- June34 alerts
- Busiest day
- June 19, 200920 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 9, 10:05 AM CST | Areal Flood Advisory | LOT | 294 days |
| Jan 11, 11:07 AM CST | Areal Flood Advisory | LOT | 292 days |
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 10, 5:19 PM CST | Areal Flood Advisory | LOT | 121 days |
| Feb 12, 3:35 AM CST | River Flood Warning | LOT | 6 hr |
| Feb 26, 7:02 PM CST | Areal Flood Advisory | LOT | 110 days |
| Feb 26, 7:59 PM CST | Flash Flood Warning | LOT | 6 hr |
| Feb 27, 7:09 AM CST | Areal Flood Warning | LOT | 30 hr |
| Feb 27, 10:03 AM CST | River Flood Warning | LOT | 10 hr |
| Mar 7, 11:32 AM CST | River Flood Advisory | LOT | 22 hr |
| Mar 8, 4:03 AM CDT | Areal Flood Warning | LOT | 30 hr |
| Mar 8, 6:31 AM CDT | River Flood Warning | LOT | 4 days |
| Mar 8, 6:38 AM CDT | River Flood Advisory | LOT | 62 hr |
| Mar 8, 11:05 AM CDT | River Flood Warning | LOT | 6 days |
| Mar 8, 11:05 AM CDT | River Flood Warning | LOT | 4 days |
| Mar 10, 2:03 AM CDT | Areal Flood Warning | LOT | 36 hr |
| Mar 24, 11:13 PM CDT | Severe Thunderstorm Warning | LOT | 62 min |
| Mar 24, 11:27 PM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Apr 5, 8:18 PM CDT | Areal Flood Advisory | LOT | 74 days |
| Apr 25, 1:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | 73 min |
| Apr 25, 9:09 PM CDT | River Flood Advisory | LOT | 15 hr |
| Apr 26, 9:29 AM CDT | Areal Flood Advisory | LOT | 54 days |
| Apr 26, 12:13 PM CDT | Areal Flood Advisory | LOT | 54 days |
| Apr 26, 2:01 PM CDT | Areal Flood Advisory | LOT | 57 days |
| Apr 27, 5:17 AM CDT | River Flood Warning | LOT | 8 days |
| Apr 27, 5:25 AM CDT | River Flood Advisory | LOT | 36 hr |
| Apr 28, 12:44 AM CDT | Areal Flood Advisory | LOT | 55 days |
| Apr 28, 8:44 PM CDT | River Flood Advisory | LOT | 5 days |
| May 6, 2:46 PM CDT | Areal Flood Advisory | LOT | 49 days |
| May 6, 4:53 PM CDT | Areal Flood Advisory | LOT | 49 days |
| May 7, 4:39 PM CDT | Severe Thunderstorm Warning | LOT | 28 min |
| May 13, 6:02 PM CDT | Tornado Watch | SPC | 5 hr |
| May 13, 10:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 13, 10:35 PM CDT | Severe Thunderstorm Warning | LOT | 40 min |
| May 13, 10:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 13, 11:13 PM CDT | Severe Thunderstorm Warning | LOT | 62 min |
| May 14, 6:06 AM CDT | River Flood Advisory | LOT | 4 hr |
| May 15, 2:48 PM CDT | Areal Flood Advisory | LOT | 57 days |
| May 15, 5:46 PM CDT | Flash Flood Warning | LOT | 6 hr |
| May 15, 8:33 PM CDT | River Flood Warning | LOT | 8 hr |
| May 15, 8:33 PM CDT | River Flood Warning | LOT | 8 hr |
| May 15, 11:16 PM CDT | Areal Flood Warning | LOT | 12 hr |
| Jun 1, 1:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 1, 2:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 11:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 1:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 8, 3:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 11, 8:11 AM CDT | Flash Flood Warning | LOT | 6 hr |
| Jun 16, 5:44 PM CDT | Flash Flood Warning | LOT | 6 hr |
| Jun 16, 11:52 PM CDT | Areal Flood Warning | LOT | 3 hr |
| Jun 18, 11:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 18, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 2:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 19, 4:48 AM CDT | Severe Thunderstorm Warning | LOT | 24 min |
| Jun 19, 7:14 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 9:46 AM CDT | Severe Thunderstorm Warning | LOT | 29 min |
| Jun 19, 10:03 AM CDT | Flash Flood Warning | LOT | 4 hr |
| Jun 19, 10:10 AM CDT | River Flood Advisory | LOT | 2 hr |
| Jun 19, 10:28 AM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| Jun 19, 11:07 AM CDT | Severe Thunderstorm Warning | LOT | 53 min |
| Jun 19, 11:23 AM CDT | Severe Thunderstorm Warning | LOT | 67 min |
| Jun 19, 12:25 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| Jun 19, 12:27 PM CDT | River Flood Warning | LOT | 8 days |
| Jun 19, 2:13 PM CDT | River Flood Warning | LOT | 53 hr |
| Jun 19, 2:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 5:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 19, 6:00 PM CDT | Flash Flood Warning | LOT | 6 hr |
| Jun 19, 6:23 PM CDT | Severe Thunderstorm Warning | LOT | 52 min |
| Jun 19, 6:56 PM CDT | Severe Thunderstorm Warning | LOT | 94 min |
| Jun 19, 6:56 PM CDT | Severe Thunderstorm Warning | LOT | 43 min |
| Jun 19, 7:22 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Jun 19, 11:29 PM CDT | Areal Flood Warning | LOT | 10 hr |
| Jun 24, 1:47 PM CDT | Severe Thunderstorm Warning | LOT | 43 min |
| Jun 24, 1:54 PM CDT | Flash Flood Warning | LOT | 117 min |
| Jun 24, 3:13 PM CDT | Severe Thunderstorm Warning | LOT | 29 min |
| Jun 25, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 11, 2:31 AM CDT | Mesoscale Discussion | SPC | 29 min |
| Jul 11, 4:38 AM CDT | Special Weather Statement | LOT | 37 min |
| Jul 16, 5:54 PM CDT | Severe Thunderstorm Warning | LOT | 36 min |
| Jul 16, 7:23 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Jul 22, 2:30 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jul 23, 4:19 PM CDT | Flash Flood Warning | LOT | 3 hr |
| Jul 23, 4:43 PM CDT | Severe Thunderstorm Warning | LOT | 40 min |
| Jul 24, 11:48 PM CDT | Special Weather Statement | LOT | 57 min |
| Jul 28, 7:31 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Aug 9, 10:21 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 9, 7:05 PM CDT | Areal Flood Advisory | LOT | 63 min |
| Aug 9, 7:05 PM CDT | Areal Flood Advisory | LOT | 62 min |
| Aug 9, 10:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 16, 2:20 PM CDT | Severe Thunderstorm Warning | LOT | 40 min |
| Aug 16, 3:14 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Aug 16, 3:41 PM CDT | Severe Thunderstorm Warning | LOT | 29 min |
| Aug 16, 3:51 PM CDT | Areal Flood Warning | LOT | 4 hr |
| Aug 17, 2:32 PM CDT | Special Weather Statement | LOT | 43 min |
| Aug 19, 12:49 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 19, 5:14 PM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Aug 19, 5:40 PM CDT | Areal Flood Advisory | LOT | 5 hr |
| Aug 27, 10:38 AM CDT | River Flood Advisory | LOT | 23 hr |
| Sep 27, 5:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 27, 8:22 PM CDT | Tornado Watch | SPC | 3 hr |
| Sep 27, 9:19 PM CDT | Severe Thunderstorm Warning | LOT | 41 min |
| Sep 27, 9:24 PM CDT | Severe Thunderstorm Warning | LOT | 66 min |
| Sep 27, 9:49 PM CDT | Tornado Warning | LOT | 26 min |
| Oct 23, 8:27 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| Oct 23, 8:48 AM CDT | River Flood Warning | LOT | 18 hr |
| Oct 29, 8:13 PM CDT | River Flood Advisory | LOT | 38 hr |
| Oct 30, 8:40 AM CDT | River Flood Warning | LOT | 32 hr |
| Dec 23, 6:41 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 10:25 AM CST | River Flood Advisory | LOT | 48 hr |
| Dec 25, 9:24 PM CST | River Flood Advisory | LOT | 22 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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. Rebuilt daily.