Alert archive / Illinois / Putnam County
Weather alerts in Putnam County, Illinois, 2017
137 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Putnam County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 137
- Warnings
- 32
- Watches
- 19
- Advisories
- 34
- Busiest month
- July27 alerts
- Busiest day
- February 28, 20178 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 4 tornado warnings covering Putnam County in 2017 had a tornado report inside them.
Putnam County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 2 | 50% | 0 | ||
| Severe thunderstorm warnings | 12 | 11 | 8% | 13 | 100% | 40 min |
| Flash flood warnings | 1 | 0 | 100% | 1 | 0% |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Quad Cities, IA: tornado warnings | 52 | 21 | 60% | 52 | 54% | 16 min |
| NWS Quad Cities, IA: severe thunderstorm warnings | 197 | 152 | 23% | 505 | 78% | 27 min |
| NWS Quad Cities, IA: flash flood warnings | 25 | 15 | 40% | 38 | 87% | 113 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 2, 4:31 PM CST | Dense Fog Advisory | DVN | 15 hr |
| Jan 10, 9:41 AM CST | Wind Advisory | DVN | 11 hr |
| Jan 11, 1:32 PM CST | Dense Fog Advisory | DVN | 6 hr |
| Jan 12, 3:05 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 14, 3:47 PM CST | Winter Weather Advisory | DVN | 47 hr |
| Jan 16, 4:30 PM CST | Dense Fog Advisory | DVN | 14 hr |
| Jan 16, 10:54 PM CST | River Flood Advisory | LOT | 36 hr |
| Jan 17, 11:33 AM CST | River Flood Warning | LOT | 10 days |
| Jan 20, 3:14 PM CST | Dense Fog Advisory | DVN | 21 hr |
| Jan 21, 3:50 PM CST | Dense Fog Advisory | DVN | 19 hr |
| Feb 6, 9:10 PM CST | Dense Fog Advisory | DVN | 15 hr |
| Feb 22, 12:26 AM CST | Dense Fog Advisory | DVN | 10 hr |
| Feb 28, 10:17 AM CST | River Flood Advisory | LOT | 5 days |
| Feb 28, 2:03 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 28, 2:57 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 28, 3:54 PM CST | Severe Thunderstorm Warning | DVN | 51 min |
| Feb 28, 4:42 PM CST | Tornado Warning | DVN | 14 min |
| Feb 28, 4:46 PM CST | Severe Thunderstorm Warning | DVN | 44 min |
| Feb 28, 4:47 PM CST | Tornado Warning | DVN | 8 min |
| Feb 28, 5:24 PM CST | Mesoscale Discussion | SPC | 96 min |
| Feb 28, 6:01 PM CST | Severe Thunderstorm Warning | DVN | 29 min |
| Feb 28, 8:06 PM CST | Mesoscale Discussion | SPC | 84 min |
| Feb 28, 9:00 PM CST | Special Weather Statement | DVN | 45 min |
| Feb 28, 9:19 PM CST | Severe Thunderstorm Warning | DVN | 41 min |
| Feb 28, 9:20 PM CST | Tornado Warning | DVN | 40 min |
| Mar 1, 12:21 AM CST | River Flood Warning | LOT | 72 hr |
| Mar 6, 7:42 PM CST | Mesoscale Discussion | SPC | 63 min |
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 6, 10:15 PM CST | Mesoscale Discussion | SPC | 60 min |
| Mar 6, 11:13 PM CST | Severe Thunderstorm Warning | DVN | 77 min |
| Mar 7, 12:08 AM CST | Tornado Warning | DVN | 17 min |
| Mar 7, 3:32 AM CST | Red Flag Warning | DVN | 14 hr |
| Mar 8, 3:18 AM CST | Wind Advisory | DVN | 14 hr |
| Mar 8, 10:21 AM CST | Red Flag Warning | DVN | 8 hr |
| Mar 11, 3:36 PM CST | Winter Storm Watch | DVN | 12 hr |
| Mar 12, 4:27 AM CDT | Winter Weather Advisory | DVN | 33 hr |
| Mar 19, 11:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 30, 11:29 AM CDT | River Flood Warning | LOT | 20 days |
| Mar 31, 11:31 AM CDT | River Flood Warning | ILX | 4 days |
| Apr 5, 11:50 AM CDT | River Flood Warning | ILX | 11 days |
| Apr 10, 4:44 AM CDT | Severe Thunderstorm Warning | DVN | 12 min |
| Apr 10, 5:06 AM CDT | Special Weather Statement | DVN | 24 min |
| Apr 10, 11:55 AM CDT | Special Weather Statement | DVN | 20 min |
| Apr 10, 11:57 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 10, 1:01 PM CDT | Special Weather Statement | DVN | 14 min |
| Apr 10, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 10, 3:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 4:37 PM CDT | Special Weather Statement | DVN | 38 min |
| Apr 16, 12:38 AM CDT | Special Weather Statement | DVN | 52 min |
| Apr 28, 12:59 PM CDT | River Flood Warning | ILX | 21 days |
| Apr 29, 4:41 PM CDT | Special Weather Statement | DVN | 79 min |
| Apr 29, 7:47 PM CDT | Flash Flood Warning | DVN | 6 hr |
| Apr 29, 9:14 PM CDT | River Flood Warning | LOT | 20 days |
| Apr 30, 7:42 PM CDT | Special Weather Statement | DVN | 63 min |
| May 6, 2:31 PM CDT | Frost Advisory | DVN | 17 hr |
| May 10, 12:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 17, 3:44 PM CDT | Tornado Watch | SPC | 9 hr |
| May 23, 2:54 PM CDT | Special Weather Statement | DVN | 3 hr |
| May 23, 6:06 PM CDT | Special Weather Statement | DVN | 114 min |
| May 24, 4:05 AM CDT | River Flood Advisory | LOT | 3 days |
| May 27, 7:29 PM CDT | River Flood Advisory | LOT | 60 hr |
| Jun 13, 10:42 AM CDT | Heat Advisory | DVN | 9 hr |
| Jun 13, 6:40 PM CDT | Special Weather Statement | DVN | 65 min |
| Jun 14, 12:06 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 12:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 14, 3:37 PM CDT | Severe Thunderstorm Warning | DVN | 38 min |
| Jun 14, 4:00 PM CDT | Severe Thunderstorm Warning | DVN | 30 min |
| Jun 15, 11:19 PM CDT | Severe Thunderstorm Warning | DVN | 41 min |
| Jun 16, 3:09 AM CDT | Special Weather Statement | DVN | 96 min |
| Jun 16, 10:25 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 1:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 17, 2:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 5:39 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 8:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 18, 9:03 PM CDT | River Flood Advisory | LOT | 70 hr |
| Jun 19, 12:44 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 20, 2:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 6:11 AM CDT | Special Weather Statement | DVN | 34 min |
| Jul 10, 2:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 10, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 10, 6:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 10, 7:41 PM CDT | Special Weather Statement | DVN | 64 min |
| Jul 10, 8:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 8:15 AM CDT | Special Weather Statement | DVN | 45 min |
| Jul 11, 8:29 AM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Jul 12, 4:05 AM CDT | Heat Advisory | DVN | 16 hr |
| Jul 12, 3:13 PM CDT | Flash Flood Watch | DVN | 12 hr |
| Jul 17, 3:37 PM CDT | Excessive Heat Watch | DVN | 36 hr |
| Jul 19, 3:50 AM CDT | Heat Advisory | DVN | 4 days |
| Jul 19, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 19, 8:34 PM CDT | Special Weather Statement | DVN | 26 min |
| Jul 20, 3:55 PM CDT | Flash Flood Watch | DVN | 41 hr |
| Jul 21, 12:29 AM CDT | Special Weather Statement | DVN | 31 min |
| Jul 21, 1:11 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 21, 4:52 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 21, 6:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 21, 8:30 PM CDT | Special Weather Statement | DVN | 45 min |
| Jul 21, 8:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 21, 11:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jul 22, 10:33 AM CDT | River Flood Warning | LOT | 5 days |
| Jul 22, 12:20 PM CDT | Areal Flood Warning | DVN | 12 hr |
| Jul 23, 1:03 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:23 AM CDT | Flash Flood Watch | DVN | 20 hr |
| Jul 26, 4:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 3, 5:18 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 5:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Aug 10, 7:18 PM CDT | Special Weather Statement | DVN | 27 min |
| Aug 10, 7:32 PM CDT | Severe Thunderstorm Warning | DVN | 15 min |
| Aug 28, 2:18 AM CDT | Dense Fog Advisory | DVN | 9 hr |
| Aug 29, 2:41 AM CDT | Dense Fog Advisory | DVN | 8 hr |
| Aug 30, 4:52 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Sep 14, 4:28 AM CDT | Dense Fog Advisory | DVN | 6 hr |
| Oct 7, 3:43 PM CDT | Special Weather Statement | DVN | 62 min |
| Oct 14, 3:30 AM CDT | Flash Flood Watch | DVN | 19 hr |
| Oct 14, 5:55 AM CDT | Special Weather Statement | DVN | 65 min |
| Oct 14, 6:05 AM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| Oct 14, 5:09 PM CDT | Tornado Watch | SPC | 8 hr |
| Oct 14, 6:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 14, 6:15 PM CDT | Special Weather Statement | DVN | 30 min |
| Oct 14, 9:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Oct 14, 9:06 PM CDT | Special Weather Statement | DVN | 54 min |
| Oct 14, 9:48 PM CDT | Special Weather Statement | DVN | 27 min |
| Oct 14, 10:57 PM CDT | River Flood Warning | LOT | 4 days |
| Oct 25, 2:56 PM CDT | Frost Advisory | DVN | 18 hr |
| Oct 27, 3:39 AM CDT | Freeze Warning | DVN | 53 hr |
| Nov 2, 1:31 AM CDT | Dense Fog Advisory | DVN | 9 hr |
| Nov 4, 11:19 PM CDT | Dense Fog Advisory | DVN | 8 hr |
| Nov 19, 9:53 AM CST | River Flood Advisory | LOT | 36 hr |
| Dec 4, 9:58 PM CST | Wind Advisory | DVN | 20 hr |
| Dec 13, 3:26 AM CST | Wind Advisory | DVN | 17 hr |
| Dec 23, 3:20 AM CST | Winter Weather Advisory | DVN | 39 hr |
| Dec 26, 1:25 PM CST | Wind Chill Advisory | DVN | 22 hr |
| Dec 28, 3:15 PM CST | Winter Weather Advisory | DVN | 29 hr |
| Dec 29, 3:24 AM CST | Winter Storm Warning | DVN | 17 hr |
| Dec 29, 3:11 PM CST | Wind Chill Advisory | DVN | 54 hr |
| Dec 29, 8:14 PM CST | Winter Storm Warning | DVN | 106 min |
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 | 12 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 9 |
| Flash Flood Watch | 4 |
| River Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.