Alert archive / Illinois / Cook County / 2018
Weather alerts in Cook County, Illinois, September 2018
20 weather alerts in September 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 20
- Warnings
- 8
- Watches
- 1
- Advisories
- 6
- Busiest day
- September 3, 201813 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| 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 |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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. Warning verification from the Mesonet's Cow. Rebuilt daily.