Alert archive / Illinois / DuPage County
Weather alerts in DuPage County, Illinois, 2009
129 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
DuPage County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 129
- Warnings
- 34
- Watches
- 25
- Advisories
- 47
- Busiest month
- June29 alerts
- Busiest day
- June 19, 200917 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 8, 2:53 PM CST | Winter Weather Advisory | LOT | 51 hr |
| 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 12, 4:21 AM CST | Blizzard Watch | LOT | 7 hr |
| Jan 12, 4:21 AM CST | Winter Weather Advisory | LOT | 28 hr |
| Jan 12, 11:49 AM CST | Blizzard Warning | LOT | 16 hr |
| Jan 12, 3:40 PM CST | Blizzard Watch | LOT | 19 hr |
| Jan 13, 2:07 PM CST | Wind Chill Watch | LOT | 13 hr |
| Jan 13, 3:02 PM CST | Winter Weather Advisory | LOT | 33 hr |
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 3:23 AM CST | Wind Chill Warning | LOT | 57 hr |
| Jan 16, 3:08 PM CST | Wind Chill Advisory | LOT | 9 hr |
| Feb 10, 4:00 AM CST | Flood Watch | LOT | 41 hr |
| Feb 11, 1:31 AM CST | Dense Fog Advisory | LOT | 7 hr |
| Feb 18, 4:13 AM CST | Dense Fog Advisory | LOT | 5 hr |
| Feb 19, 1:38 PM CST | Winter Storm Watch | LOT | 14 hr |
| Feb 20, 3:41 AM CST | Winter Storm Warning | LOT | 34 hr |
| Feb 20, 3:41 AM CST | Winter Weather Advisory | LOT | 41 hr |
| Feb 20, 11:57 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 26, 3:50 AM CST | Dense Fog Advisory | LOT | 11 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 28, 1:01 PM CST | Areal Flood Warning | LOT | 20 hr |
| Mar 1, 9:31 AM CST | Lake Effect Snow Advisory | LOT | 23 hr |
| Mar 6, 5:29 AM CST | Dense Fog Advisory | LOT | 5 hr |
| Mar 6, 3:28 PM CST | Flash Flood Watch | LOT | 48 hr |
| Mar 8, 4:03 AM CDT | Areal Flood Warning | LOT | 30 hr |
| Mar 9, 3:39 AM CDT | Flash Flood Watch | LOT | 24 hr |
| Mar 9, 10:20 AM CDT | Areal Flood Warning | LOT | 8 hr |
| Mar 9, 10:09 PM CDT | Areal Flood Warning | LOT | 4 hr |
| Mar 10, 2:03 AM CDT | Areal Flood Warning | LOT | 36 hr |
| Mar 10, 3:37 AM CDT | Wind Advisory | LOT | 27 hr |
| Mar 24, 10:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 24, 10:48 PM CDT | Severe Thunderstorm Warning | LOT | 42 min |
| Mar 24, 11:13 PM CDT | Severe Thunderstorm Warning | LOT | 62 min |
| Mar 24, 11:27 PM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Mar 28, 3:40 AM CDT | Winter Weather Advisory | LOT | 24 hr |
| Mar 29, 3:11 AM CDT | Winter Weather Advisory | LOT | 8 hr |
| Mar 31, 6:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 5, 8:18 PM CDT | Areal Flood Advisory | LOT | 74 days |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | 73 min |
| 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 28, 12:44 AM CDT | Areal Flood Advisory | LOT | 55 days |
| Apr 29, 3:10 PM CDT | Flash Flood Watch | LOT | 20 hr |
| May 7, 4:39 PM CDT | Severe Thunderstorm Warning | LOT | 28 min |
| May 8, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 13, 6:02 PM CDT | Tornado Watch | SPC | 5 hr |
| May 13, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 10:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 13, 10:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 14, 3:34 PM CDT | Flash Flood Watch | LOT | 30 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 |
| Jun 1, 3:22 AM CDT | Severe Thunderstorm Warning | LOT | 31 min |
| Jun 1, 1:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 1, 2:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 6:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| 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 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, 7:14 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 10:01 AM CDT | Severe Thunderstorm Warning | LOT | 42 min |
| Jun 19, 10:03 AM CDT | Flash Flood Warning | LOT | 4 hr |
| Jun 19, 10:28 AM CDT | Severe Thunderstorm Warning | LOT | 47 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, 1:08 PM CDT | Flash Flood Watch | LOT | 8 hr |
| Jun 19, 1:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| 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, 11:29 PM CDT | Areal Flood Warning | LOT | 10 hr |
| Jun 22, 3:15 PM CDT | Heat Advisory | LOT | 52 hr |
| Jun 24, 3:13 PM CDT | Severe Thunderstorm Warning | LOT | 29 min |
| Jun 25, 10:18 AM CDT | Heat Advisory | LOT | 9 hr |
| Jun 25, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 5, 3:58 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jul 16, 5:54 PM CDT | Severe Thunderstorm Warning | LOT | 36 min |
| Jul 22, 2:30 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jul 23, 11:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 24, 11:48 PM CDT | Special Weather Statement | LOT | 57 min |
| Jul 27, 11:05 PM CDT | High Wind Warning | LOT | 3 hr |
| Aug 4, 4:29 AM CDT | Dense Fog Advisory | LOT | 4 hr |
| Aug 8, 4:07 AM CDT | Heat Advisory | LOT | 38 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 19, 12:49 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 19, 5:40 PM CDT | Areal Flood Advisory | LOT | 5 hr |
| Aug 26, 1:59 PM CDT | Flash Flood Watch | LOT | 37 hr |
| Sep 5, 8:08 AM CDT | Dense Fog Advisory | LOT | 3 hr |
| Sep 9, 9:19 PM CDT | Dense Fog Advisory | LOT | 12 hr |
| Sep 10, 8:44 PM CDT | Dense Fog Advisory | LOT | 11 hr |
| Sep 12, 4:08 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Sep 12, 9:05 AM CDT | Dense Fog Advisory | LOT | 73 min |
| Sep 12, 9:43 PM CDT | Dense Fog Advisory | LOT | 11 hr |
| Sep 27, 5:55 AM CDT | Dense Fog Advisory | LOT | 4 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 28, 4:29 AM CDT | Wind Advisory | LOT | 15 hr |
| Oct 6, 9:09 PM CDT | Wind Advisory | LOT | 5 hr |
| Oct 9, 4:37 AM CDT | Frost Advisory | LOT | 24 hr |
| Oct 9, 4:00 PM CDT | Freeze Warning | LOT | 41 hr |
| Oct 23, 8:27 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| Oct 29, 3:13 PM CDT | Flood Watch | LOT | 24 hr |
| Nov 23, 9:40 PM CST | Dense Fog Advisory | LOT | 11 hr |
| Dec 7, 9:35 PM CST | Winter Weather Advisory | LOT | 50 hr |
| Dec 8, 11:22 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 22, 11:31 AM CST | Winter Storm Watch | LOT | 17 hr |
| Dec 22, 3:35 PM CST | Winter Weather Advisory | LOT | 29 hr |
| Dec 23, 3:45 AM CST | Flood Watch | LOT | 55 hr |
| Dec 23, 6:41 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 23, 8:46 PM CST | Ice Storm Warning | LOT | 18 hr |
| Dec 26, 9:33 AM CST | Winter Weather Advisory | LOT | 11 hr |
| Dec 26, 1:19 PM CST | Winter Storm Warning | LOT | 8 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.