Alert archive / Illinois / Cook County
Weather alerts in Cook County, Illinois, 2018
124 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 124
- Warnings
- 42
- Watches
- 7
- Advisories
- 37
- Busiest month
- May32 alerts
- Busiest day
- September 3, 201813 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 7, 1:49 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 7, 2:00 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 7, 6:16 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 22, 4:14 AM CST | Areal Flood Advisory | LOT | 5 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 19, 10:42 AM CST | River Flood Advisory | LOT | 4 days |
| Feb 19, 8:31 PM CST | River Flood Advisory | LOT | 36 hr |
| Feb 19, 8:33 PM CST | River Flood Warning | LOT | 67 hr |
| Feb 19, 10:44 PM CST | Areal Flood Warning | LOT | 12 hr |
| Feb 20, 3:45 AM CST | River Flood Advisory | LOT | 36 hr |
| Feb 20, 10:45 AM CST | Areal Flood Warning | LOT | 24 hr |
| Feb 20, 10:56 AM CST | River Flood Advisory | LOT | 67 hr |
| Feb 20, 11:01 AM CST | River Flood Warning | LOT | 66 hr |
| Feb 20, 11:01 AM CST | River Flood Warning | LOT | 52 hr |
| Feb 20, 1:27 PM CST | Special Weather Statement | LOT | 48 min |
| Feb 20, 2:49 PM CST | River Flood Warning | LOT | 52 hr |
| Feb 20, 9:18 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 17, 3:59 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 29, 8:55 PM CDT | Red Flag Warning | LOT | 23 hr |
| Apr 30, 4:35 PM CDT | Red Flag Warning | LOT | 26 hr |
| May 2, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 2, 4:47 PM CDT | Special Weather Statement | LOT | 13 min |
| May 2, 4:51 PM CDT | Severe Thunderstorm Warning | LOT | 24 min |
| May 2, 4:58 PM CDT | Severe Thunderstorm Warning | LOT | 32 min |
| May 2, 5:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 2, 7:02 PM CDT | Severe Thunderstorm Warning | LOT | 43 min |
| May 2, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 2, 7:24 PM CDT | Severe Thunderstorm Warning | LOT | 36 min |
| May 2, 10:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 2, 11:57 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 3, 1:57 AM CDT | Mesoscale Discussion | SPC | 93 min |
| May 9, 3:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 9, 5:15 PM CDT | Special Weather Statement | LOT | 45 min |
| May 9, 5:34 PM CDT | Special Weather Statement | LOT | 11 min |
| May 9, 5:48 PM CDT | Special Weather Statement | LOT | 27 min |
| May 13, 1:05 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 14, 2:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 14, 6:41 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 14, 11:28 AM CDT | River Flood Warning | LOT | 68 hr |
| May 14, 11:42 AM CDT | River Flood Advisory | LOT | 3 days |
| May 14, 11:42 AM CDT | River Flood Advisory | LOT | 65 hr |
| May 14, 2:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 14, 6:10 PM CDT | Special Weather Statement | LOT | 20 min |
| May 14, 6:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 16, 8:42 PM CDT | River Flood Warning | LOT | 11 hr |
| May 21, 10:12 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 21, 11:10 AM CDT | River Flood Warning | LOT | 3 days |
| May 21, 12:18 PM CDT | River Flood Advisory | LOT | 57 hr |
| May 21, 12:18 PM CDT | River Flood Advisory | LOT | 67 hr |
| May 21, 2:40 PM CDT | River Flood Warning | LOT | 31 hr |
| May 30, 3:39 PM CDT | Areal Flood Warning | LOT | 15 hr |
| May 30, 6:35 PM CDT | Areal Flood Warning | LOT | 6 hr |
| Jun 9, 4:42 AM CDT | Flash Flood Warning | LOT | 3 hr |
| Jun 9, 8:12 AM CDT | Areal Flood Warning | LOT | 9 hr |
| Jun 9, 10:00 AM CDT | River Flood Advisory | LOT | 13 hr |
| Jun 16, 2:12 AM CDT | Special Weather Statement | LOT | 48 min |
| Jun 19, 3:05 AM CDT | River Flood Advisory | LOT | 17 hr |
| Jun 21, 7:46 AM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jun 21, 10:20 AM CDT | River Flood Advisory | LOT | 5 days |
| Jun 21, 10:20 AM CDT | River Flood Advisory | LOT | 63 hr |
| Jun 21, 11:44 AM CDT | Areal Flood Warning | LOT | 9 hr |
| Jun 21, 1:44 PM CDT | River Flood Warning | LOT | 20 hr |
| Jun 21, 1:44 PM CDT | River Flood Warning | LOT | 45 hr |
| Jun 21, 3:51 PM CDT | River Flood Warning | LOT | 4 days |
| Jun 21, 3:51 PM CDT | River Flood Warning | LOT | 52 hr |
| Jun 21, 4:07 PM CDT | River Flood Advisory | LOT | 3 days |
| Jun 21, 9:30 PM CDT | River Flood Advisory | LOT | 14 hr |
| Jun 22, 1:04 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jun 22, 9:21 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 22, 10:06 AM CDT | Areal Flood Warning | LOT | 3 hr |
| Jun 26, 4:31 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 26, 6:49 PM CDT | Special Weather Statement | LOT | 26 min |
| Jun 26, 10:56 PM CDT | River Flood Warning | LOT | 5 days |
| Jul 1, 12:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 1, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 3:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 1, 4:35 PM CDT | Special Weather Statement | LOT | 55 min |
| Jul 4, 9:11 PM CDT | Severe Thunderstorm Warning | LOT | 28 min |
| Jul 4, 9:51 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jul 5, 1:30 PM CDT | Severe Thunderstorm Warning | LOT | 30 min |
| Jul 5, 1:48 PM CDT | Severe Thunderstorm Warning | LOT | 42 min |
| Jul 5, 2:31 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jul 16, 1:53 PM CDT | Special Weather Statement | LOT | 22 min |
| Aug 5, 7:58 PM CDT | Severe Thunderstorm Watch | SPC | 83 min |
| Aug 7, 3:04 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 7, 4:00 PM CDT | Flash Flood Warning | LOT | 3 hr |
| Aug 9, 2:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 9, 7:38 PM CDT | Severe Thunderstorm Warning | LOT | 20 min |
| Aug 9, 7:58 PM CDT | Special Weather Statement | LOT | 32 min |
| Aug 17, 5:05 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 20, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 28, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 28, 7:05 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Aug 28, 7:37 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 28, 9:19 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 28, 9:29 PM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Aug 28, 9:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 31, 7:40 PM CDT | Severe Thunderstorm Warning | LOT | 20 min |
| Sep 2, 12:34 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Sep 3, 6:20 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Sep 3, 8:42 AM CDT | River Flood Warning | LOT | 62 hr |
| Sep 3, 1:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 3, 1:39 PM CDT | Severe Thunderstorm Warning | LOT | 36 min |
| Sep 3, 1:54 PM CDT | Special Weather Statement | LOT | 36 min |
| Sep 3, 2:10 PM CDT | Areal Flood Warning | LOT | 3 hr |
| Sep 3, 2:15 PM CDT | Special Weather Statement | LOT | 15 min |
| Sep 3, 2:26 PM CDT | Severe Thunderstorm Warning | LOT | 19 min |
| Sep 3, 4:24 PM CDT | River Flood Advisory | LOT | 63 hr |
| Sep 3, 4:50 PM CDT | Areal Flood Advisory | LOT | 115 min |
| Sep 3, 4:53 PM CDT | River Flood Advisory | LOT | 32 hr |
| Sep 3, 5:15 PM CDT | Areal Flood Warning | LOT | 2 hr |
| Sep 3, 6:43 PM CDT | Areal Flood Advisory | LOT | 2 hr |
| Sep 20, 3:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Sep 25, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 25, 3:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 25, 4:52 PM CDT | Severe Thunderstorm Warning | LOT | 68 min |
| Sep 25, 6:29 PM CDT | Severe Thunderstorm Warning | LOT | 31 min |
| Oct 5, 9:11 PM CDT | River Flood Advisory | LOT | 7 days |
| Nov 25, 11:54 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 25, 6:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 2, 3:41 AM CST | River Flood Advisory | LOT | 7 hr |
| Dec 2, 10:48 AM CST | River Flood Warning | LOT | 49 hr |
| Dec 2, 11:39 AM CST | River Flood Advisory | LOT | 45 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 14 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 13 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 2 |
| River Flood Warning | 15 |
| Areal Flood Advisory | 18 |
| River Flood Advisory | 19 |
| Fire | |
| Red Flag Warning | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.