Alert archive / Indiana / Spencer County
Weather alerts in Spencer County, Indiana, 2017
104 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Spencer County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 104
- Warnings
- 14
- Watches
- 14
- Advisories
- 34
- Busiest month
- May19 alerts
- Busiest day
- July 23, 20176 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Spencer County in 2017 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Spencer County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| Severe thunderstorm warnings | 5 | 5 | 0% | 7 | 100% | 13 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Paducah, KY: tornado warnings | 46 | 12 | 74% | 45 | 58% | 20 min |
| NWS Paducah, KY: severe thunderstorm warnings | 223 | 108 | 52% | 306 | 70% | 18 min |
| NWS Paducah, KY: flash flood warnings | 49 | 20 | 59% | 58 | 83% | 145 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 1, 9:36 PM CST | Dense Fog Advisory | PAH | 11 hr |
| Jan 2, 5:07 PM CST | Dense Fog Advisory | PAH | 15 hr |
| Jan 4, 1:19 PM CST | Winter Weather Advisory | PAH | 31 hr |
| Jan 9, 7:23 PM CST | Wind Advisory | PAH | 23 hr |
| Jan 10, 5:04 PM CST | Special Weather Statement | PAH | 41 min |
| Jan 15, 10:58 AM CST | River Flood Warning | PAH | 9 days |
| Feb 6, 11:20 PM CST | Mesoscale Discussion | SPC | 115 min |
| Feb 7, 4:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 19, 1:14 AM CST | Dense Fog Advisory | PAH | 10 hr |
| Feb 19, 9:18 PM CST | Dense Fog Advisory | PAH | 9 hr |
| Feb 28, 2:49 PM CST | Flash Flood Watch | PAH | 18 hr |
| Feb 28, 7:46 PM CST | Mesoscale Discussion | SPC | 119 min |
| Feb 28, 8:29 PM CST | Tornado Watch | SPC | 12 hr |
| Mar 1, 1:32 AM CST | Mesoscale Discussion | SPC | 88 min |
| Mar 1, 3:03 AM CST | Tornado Watch | SPC | 5 hr |
| Mar 1, 4:19 AM CST | Mesoscale Discussion | SPC | 56 min |
| Mar 2, 10:45 AM CST | River Flood Warning | PAH | 6 days |
| Mar 9, 3:12 PM CST | Freeze Warning | PAH | 38 hr |
| Mar 11, 5:02 AM CST | Freeze Warning | PAH | 29 hr |
| Mar 13, 1:25 PM CDT | Freeze Warning | PAH | 69 hr |
| Mar 17, 10:10 PM CDT | Dense Fog Advisory | PAH | 9 hr |
| Mar 27, 1:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 30, 12:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 30, 5:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 3, 5:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 5, 1:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 5, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 5, 4:15 PM CDT | Wind Advisory | PAH | 4 hr |
| Apr 6, 3:39 AM CDT | Wind Advisory | PAH | 14 hr |
| Apr 7, 3:06 AM CDT | Frost Advisory | PAH | 29 hr |
| Apr 16, 2:02 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 6:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 27, 3:57 AM CDT | Flash Flood Watch | PAH | 4 days |
| Apr 28, 1:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 4:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 28, 8:27 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 28, 9:39 PM CDT | Tornado Warning | PAH | 36 min |
| Apr 28, 10:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 29, 12:31 AM CDT | Flash Flood Warning | PAH | 4 hr |
| Apr 29, 12:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 30, 12:05 PM CDT | Areal Flood Advisory | PAH | 4 hr |
| Apr 30, 3:03 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| May 1, 12:28 AM CDT | Special Weather Statement | PAH | 47 min |
| May 1, 3:49 AM CDT | Lake Wind Advisory | PAH | 16 hr |
| May 2, 3:21 AM CDT | Lake Wind Advisory | PAH | 15 hr |
| May 5, 4:02 AM CDT | Lake Wind Advisory | PAH | 15 hr |
| May 5, 7:35 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| May 11, 12:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 16, 2:58 AM CDT | Lake Wind Advisory | PAH | 16 hr |
| May 17, 2:34 AM CDT | Wind Advisory | PAH | 15 hr |
| May 20, 11:13 AM CDT | Mesoscale Discussion | SPC | 92 min |
| May 20, 1:44 PM CDT | Special Weather Statement | PAH | 16 min |
| May 20, 2:47 PM CDT | Special Weather Statement | PAH | 28 min |
| May 20, 5:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 3:43 AM CDT | Lake Wind Advisory | PAH | 14 hr |
| May 27, 1:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 27, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 3:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 5:13 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 10:21 AM CDT | Lake Wind Advisory | PAH | 10 hr |
| May 29, 9:43 PM CDT | Special Weather Statement | PAH | 47 min |
| Jun 11, 11:15 AM CDT | Lake Wind Advisory | PAH | 8 hr |
| Jun 15, 1:10 AM CDT | Special Weather Statement | PAH | 50 min |
| Jun 18, 2:34 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 18, 4:30 AM CDT | Special Weather Statement | PAH | 45 min |
| Jun 18, 4:48 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 22, 9:31 AM CDT | Flash Flood Watch | PAH | 31 hr |
| Jun 30, 12:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 6:53 PM CDT | Special Weather Statement | PAH | 52 min |
| Jun 30, 7:26 PM CDT | Special Weather Statement | PAH | 49 min |
| Jul 6, 11:20 AM CDT | Areal Flood Advisory | PAH | 115 min |
| Jul 7, 9:19 PM CDT | Special Weather Statement | PAH | 41 min |
| Jul 7, 9:22 PM CDT | Special Weather Statement | PAH | 38 min |
| Jul 7, 9:37 PM CDT | Severe Thunderstorm Warning | PAH | 23 min |
| Jul 10, 12:55 PM CDT | Lake Wind Advisory | PAH | 6 hr |
| Jul 13, 1:28 PM CDT | Special Weather Statement | PAH | 32 min |
| Jul 17, 2:30 PM CDT | Excessive Heat Watch | PAH | 24 hr |
| Jul 18, 2:34 PM CDT | Heat Advisory | PAH | 4 days |
| Jul 21, 12:30 PM CDT | Excessive Heat Warning | PAH | 55 hr |
| Jul 23, 1:50 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 2:57 AM CDT | Special Weather Statement | PAH | 48 min |
| Jul 23, 5:59 AM CDT | Severe Thunderstorm Warning | PAH | 46 min |
| Jul 23, 6:07 AM CDT | Severe Thunderstorm Warning | PAH | 38 min |
| Jul 23, 6:10 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Jul 23, 6:30 AM CDT | Severe Thunderstorm Warning | PAH | 45 min |
| Aug 31, 3:41 AM CDT | Lake Wind Advisory | PAH | 39 hr |
| Sep 1, 7:09 AM CDT | Areal Flood Advisory | PAH | 4 hr |
| Sep 4, 2:54 AM CDT | Lake Wind Advisory | PAH | 16 hr |
| Sep 11, 1:45 PM CDT | Lake Wind Advisory | PAH | 22 hr |
| Sep 15, 5:01 AM CDT | Dense Fog Advisory | PAH | 4 hr |
| Oct 7, 4:40 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 8, 2:47 PM CDT | Areal Flood Advisory | PAH | 118 min |
| Oct 27, 4:04 AM CDT | Freeze Watch | PAH | 11 hr |
| Oct 27, 3:27 PM CDT | Freeze Warning | PAH | 42 hr |
| Nov 5, 3:50 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 5, 6:07 PM CST | Mesoscale Discussion | SPC | 113 min |
| Nov 17, 10:41 AM CST | Wind Advisory | PAH | 30 hr |
| Nov 18, 10:24 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 18, 11:04 AM CST | Severe Thunderstorm Watch | SPC | 8 hr |
| Nov 18, 1:48 PM CST | Mesoscale Discussion | SPC | 57 min |
| Nov 18, 1:54 PM CST | Special Weather Statement | PAH | 66 min |
| Nov 18, 2:39 PM CST | Severe Thunderstorm Warning | PAH | 27 min |
| Dec 13, 3:05 AM CST | Wind Advisory | PAH | 12 hr |
| Dec 30, 10:15 AM CST | Wind Chill Advisory | PAH | 3 days |
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 | 5 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 2 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 7 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 11 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.