Alert archive / Ohio / Guernsey County
Weather alerts in Guernsey County, Ohio, 2010
150 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Guernsey County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 150
- Warnings
- 45
- Watches
- 30
- Advisories
- 19
- Busiest month
- June54 alerts
- Busiest day
- June 5, 201013 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 2 tornado warnings covering Guernsey County in 2010 had a tornado report inside them.
Guernsey County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 32 | 18 | 44% | 5 | 100% | 44 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pittsburgh, PA: tornado warnings | 13 | 1 | 92% | 4 | 25% | 4 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 204 | 124 | 39% | 290 | 82% | 26 min |
| NWS Pittsburgh, PA: flash flood warnings | 24 | 15 | 38% | 29 | 90% | 73 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 8:56 AM EST | Winter Weather Advisory | PBZ | 3 hr |
| Jan 6, 3:27 PM EST | Winter Weather Advisory | PBZ | 67 hr |
| Feb 3, 3:00 PM EST | Winter Storm Watch | PBZ | 24 hr |
| Feb 4, 2:31 PM EST | Winter Storm Warning | PBZ | 50 hr |
| Feb 5, 11:49 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 7, 3:04 PM EST | Winter Storm Watch | PBZ | 24 hr |
| Feb 8, 3:19 PM EST | Winter Storm Warning | PBZ | 54 hr |
| Feb 14, 4:52 PM EST | Winter Weather Advisory | PBZ | 4 days |
| Feb 14, 10:36 PM EST | Winter Storm Warning | PBZ | 4 days |
| Feb 15, 1:41 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 18, 12:05 PM EST | Winter Weather Advisory | PBZ | 4 hr |
| Feb 24, 11:32 PM EST | Winter Weather Advisory | PBZ | 9 hr |
| Feb 25, 2:54 AM EST | Winter Weather Advisory | PBZ | 50 hr |
| Mar 10, 4:19 AM EST | Flood Watch | PBZ | 4 days |
| Mar 13, 7:41 AM EST | River Flood Watch | PBZ | 7 hr |
| Apr 3, 3:50 AM EDT | Fire Weather Watch | PBZ | 12 hr |
| Apr 3, 10:18 AM EDT | Red Flag Warning | PBZ | 10 hr |
| Apr 16, 12:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 16, 1:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 16, 3:35 PM EDT | Severe Thunderstorm Warning | PBZ | 55 min |
| Apr 16, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | 49 min |
| Apr 16, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 16, 6:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 25, 10:56 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 25, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 25, 1:03 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Apr 25, 1:25 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Apr 25, 1:55 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Apr 25, 2:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 25, 2:47 PM EDT | Severe Thunderstorm Warning | PBZ | 43 min |
| Apr 27, 3:17 AM EDT | Freeze Watch | PBZ | 11 hr |
| Apr 27, 2:31 PM EDT | Freeze Warning | PBZ | 18 hr |
| Apr 28, 3:09 PM EDT | Frost Advisory | PBZ | 18 hr |
| May 2, 2:04 PM EDT | Flash Flood Watch | PBZ | 13 hr |
| May 7, 7:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 7, 9:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 7, 9:31 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 8, 3:04 PM EDT | Freeze Watch | PBZ | 12 hr |
| May 9, 3:22 AM EDT | Frost Advisory | PBZ | 18 hr |
| May 9, 3:22 AM EDT | Freeze Warning | PBZ | 29 hr |
| May 13, 1:46 PM EDT | Tornado Watch | SPC | 6 hr |
| May 23, 2:11 AM EDT | Dense Fog Advisory | PBZ | 7 hr |
| May 27, 9:47 PM EDT | Special Weather Statement | PBZ | 58 min |
| Jun 2, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 2, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 2, 4:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 2, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | 40 min |
| Jun 2, 9:28 PM EDT | Severe Thunderstorm Warning | PBZ | 62 min |
| Jun 4, 12:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 4, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 4, 4:29 PM EDT | Special Weather Statement | PBZ | 61 min |
| Jun 4, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | 60 min |
| Jun 4, 5:40 PM EDT | Severe Thunderstorm Warning | PBZ | 65 min |
| Jun 4, 7:18 PM EDT | Severe Thunderstorm Warning | PBZ | 57 min |
| Jun 4, 7:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 4, 8:16 PM EDT | Severe Thunderstorm Warning | PBZ | 59 min |
| Jun 4, 8:40 PM EDT | Areal Flood Warning | PBZ | 4 hr |
| Jun 5, 3:15 AM EDT | Flash Flood Watch | PBZ | 32 hr |
| Jun 5, 4:31 AM EDT | Special Weather Statement | PBZ | 59 min |
| Jun 5, 8:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 5, 9:52 AM EDT | Areal Flood Warning | PBZ | 8 hr |
| Jun 5, 1:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 5, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 2:32 PM EDT | Severe Thunderstorm Warning | PBZ | 43 min |
| Jun 5, 3:13 PM EDT | Tornado Watch | SPC | 4 hr |
| Jun 5, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Jun 5, 4:22 PM EDT | Severe Thunderstorm Warning | PBZ | 23 min |
| Jun 5, 5:44 PM EDT | Flash Flood Warning | PBZ | 4 hr |
| Jun 5, 9:46 PM EDT | Areal Flood Warning | PBZ | 4 hr |
| Jun 6, 2:03 AM EDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 3:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 6:23 AM EDT | Special Weather Statement | PBZ | 37 min |
| Jun 6, 7:03 AM EDT | Special Weather Statement | PBZ | 42 min |
| Jun 6, 7:05 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 6, 7:36 AM EDT | Severe Thunderstorm Warning | PBZ | 24 min |
| Jun 6, 7:51 AM EDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 7:55 AM EDT | Severe Thunderstorm Warning | PBZ | 65 min |
| Jun 13, 1:00 AM EDT | Special Weather Statement | PBZ | 60 min |
| Jun 15, 2:10 AM EDT | Special Weather Statement | PBZ | 50 min |
| Jun 15, 9:21 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 15, 11:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 16, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 22, 4:25 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 22, 5:56 AM EDT | Severe Thunderstorm Warning | PBZ | 64 min |
| Jun 23, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 1:44 PM EDT | Special Weather Statement | PBZ | 46 min |
| Jun 23, 2:21 PM EDT | Severe Thunderstorm Warning | PBZ | 39 min |
| Jun 23, 2:54 PM EDT | Severe Thunderstorm Warning | PBZ | 51 min |
| Jun 23, 3:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 4:41 PM EDT | Severe Thunderstorm Warning | PBZ | 49 min |
| Jun 23, 5:08 PM EDT | Severe Thunderstorm Warning | PBZ | 37 min |
| Jun 23, 6:22 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jun 26, 8:37 PM EDT | Special Weather Statement | PBZ | 53 min |
| Jun 27, 12:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 9:05 PM EDT | Severe Thunderstorm Warning | PBZ | 55 min |
| Jun 27, 10:05 PM EDT | Special Weather Statement | PBZ | 55 min |
| Jun 28, 5:05 PM EDT | Special Weather Statement | PBZ | 55 min |
| Jul 13, 10:08 PM EDT | Flash Flood Watch | PBZ | 5 hr |
| Jul 13, 10:50 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jul 18, 4:59 AM EDT | Special Weather Statement | PBZ | 61 min |
| Jul 18, 7:10 PM EDT | Special Weather Statement | PBZ | 35 min |
| Jul 23, 3:30 AM EDT | Heat Advisory | PBZ | 40 hr |
| Jul 25, 10:19 AM EDT | Special Weather Statement | PBZ | 41 min |
| Jul 25, 4:31 PM EDT | Special Weather Statement | PBZ | 59 min |
| Jul 28, 8:36 PM EDT | Tornado Warning | PBZ | 24 min |
| Aug 4, 1:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 4, 2:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 4, 2:20 PM EDT | Severe Thunderstorm Warning | PBZ | 55 min |
| Aug 4, 3:09 PM EDT | Severe Thunderstorm Warning | PBZ | 51 min |
| Aug 4, 3:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 4, 9:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Aug 4, 10:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 11:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 4, 11:54 PM EDT | Special Weather Statement | PBZ | 51 min |
| Aug 5, 12:05 AM EDT | Severe Thunderstorm Warning | PBZ | 40 min |
| Aug 14, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 5:38 PM EDT | Special Weather Statement | PBZ | 37 min |
| Aug 21, 7:09 PM EDT | Special Weather Statement | PBZ | 51 min |
| Sep 16, 4:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Sep 16, 4:59 PM EDT | Special Weather Statement | PBZ | 61 min |
| Sep 16, 5:02 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 16, 6:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Sep 16, 7:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Sep 22, 2:12 PM EDT | Special Weather Statement | PBZ | 48 min |
| Sep 22, 2:18 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Sep 22, 2:32 PM EDT | Severe Thunderstorm Warning | PBZ | 43 min |
| Sep 22, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 22, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Sep 22, 3:16 PM EDT | Severe Thunderstorm Warning | PBZ | 44 min |
| Sep 22, 4:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Sep 22, 6:33 PM EDT | Special Weather Statement | PBZ | 57 min |
| Oct 19, 2:17 PM EDT | Frost Advisory | PBZ | 19 hr |
| Oct 21, 2:24 PM EDT | Freeze Warning | PBZ | 19 hr |
| Oct 26, 3:40 AM EDT | Wind Advisory | PBZ | 15 hr |
| Oct 26, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Oct 26, 1:36 PM EDT | Tornado Watch | SPC | 7 hr |
| Oct 26, 2:30 PM EDT | Severe Thunderstorm Warning | PBZ | 75 min |
| Oct 26, 2:46 PM EDT | Tornado Warning | PBZ | 44 min |
| Oct 26, 3:41 PM EDT | Severe Thunderstorm Warning | PBZ | 64 min |
| Oct 26, 5:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Nov 16, 5:34 PM EST | Special Weather Statement | PBZ | 56 min |
| Nov 16, 11:30 PM EST | Special Weather Statement | PBZ | 60 min |
| Nov 17, 1:10 AM EST | Special Weather Statement | PBZ | 110 min |
| Nov 24, 3:13 PM EST | Flood Watch | PBZ | 32 hr |
| Nov 29, 1:09 PM EST | Flood Watch | PBZ | 39 hr |
| Nov 29, 1:09 PM EST | Wind Advisory | PBZ | 32 hr |
| Dec 12, 3:43 AM EST | Winter Weather Advisory | PBZ | 63 hr |
| Dec 13, 3:08 AM EST | Wind Chill Advisory | PBZ | 55 hr |
| Dec 29, 2:58 PM EST | Winter Weather Advisory | PBZ | 8 hr |
| Dec 29, 10:30 PM EST | Freezing Rain Advisory | PBZ | 13 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 archive20092011
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.