Alert archive / Ohio / Portage County
Weather alerts in Portage County, Ohio, 2010
139 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Portage County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 139
- Warnings
- 29
- Watches
- 35
- Advisories
- 36
- Busiest month
- June30 alerts
- Busiest day
- July 24, 20109 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 Portage County in 2010 had a tornado report inside them.
Portage County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 15 | 13 | 13% | 10 | 80% | 11 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cleveland, OH: tornado warnings | 45 | 8 | 82% | 12 | 83% | 10 min |
| NWS Cleveland, OH: severe thunderstorm warnings | 205 | 143 | 30% | 360 | 82% | 24 min |
| NWS Cleveland, OH: flash flood warnings | 12 | 3 | 75% | 5 | 100% | 40 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 1, 4:07 AM EST | Lake Effect Snow Warning | CLE | 4 days |
| Jan 1, 4:07 AM EST | Lake Effect Snow Advisory | CLE | 3 days |
| Jan 1, 6:28 AM EST | Winter Weather Advisory | CLE | 4 hr |
| Jan 6, 4:14 AM EST | Winter Weather Advisory | CLE | 11 hr |
| Jan 6, 3:07 PM EST | Lake Effect Snow Watch | CLE | 24 hr |
| Jan 6, 3:07 PM EST | Winter Weather Advisory | CLE | 61 hr |
| Jan 7, 2:51 PM EST | Winter Storm Warning | CLE | 37 hr |
| Jan 16, 8:43 PM EST | Dense Fog Advisory | CLE | 16 hr |
| Jan 17, 5:20 PM EST | Dense Fog Advisory | CLE | 16 hr |
| Jan 18, 11:01 PM EST | Winter Weather Advisory | CLE | 11 hr |
| Jan 22, 5:36 AM EST | Freezing Rain Advisory | CLE | 5 hr |
| Feb 4, 3:43 PM EST | Winter Storm Warning | CLE | 44 hr |
| Feb 4, 3:43 PM EST | Winter Weather Advisory | CLE | 42 hr |
| Feb 8, 3:18 AM EST | Winter Storm Watch | CLE | 12 hr |
| Feb 8, 2:53 PM EST | Winter Storm Warning | CLE | 52 hr |
| Feb 8, 2:53 PM EST | Winter Weather Advisory | CLE | 52 hr |
| Feb 14, 3:05 PM EST | Winter Weather Advisory | CLE | 55 hr |
| Feb 17, 9:45 PM EST | Winter Weather Advisory | CLE | 12 hr |
| Feb 21, 4:02 PM EST | Winter Weather Advisory | CLE | 19 hr |
| Feb 22, 9:55 PM EST | Dense Fog Advisory | CLE | 6 hr |
| Feb 23, 6:43 AM EST | Winter Weather Advisory | CLE | 4 hr |
| Feb 24, 4:00 AM EST | Winter Storm Watch | CLE | 24 hr |
| Feb 25, 4:02 AM EST | Winter Storm Warning | CLE | 33 hr |
| Feb 25, 4:02 AM EST | Winter Weather Advisory | CLE | 48 hr |
| Mar 11, 3:22 PM EST | Flood Watch | CLE | 65 hr |
| Apr 3, 1:11 PM EDT | Wind Advisory | CLE | 3 hr |
| Apr 16, 1:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 22, 2:56 PM EDT | Frost Advisory | CLE | 17 hr |
| 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, 2:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 27, 3:58 AM EDT | Freeze Watch | CLE | 12 hr |
| Apr 27, 3:45 PM EDT | Freeze Warning | CLE | 16 hr |
| Apr 28, 3:01 PM EDT | Frost Advisory | CLE | 17 hr |
| Apr 28, 3:01 PM EDT | Freeze Warning | CLE | 13 hr |
| May 5, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 5, 7:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 5, 9:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 7, 4:18 AM EDT | High Wind Watch | CLE | 11 hr |
| May 7, 3:03 PM EDT | Wind Advisory | CLE | 29 hr |
| May 7, 3:30 PM EDT | Tornado Watch | SPC | 9 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, 9:51 PM EDT | Severe Thunderstorm Warning | CLE | 39 min |
| May 7, 10:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 7, 11:09 PM EDT | Severe Thunderstorm Warning | CLE | 41 min |
| May 8, 3:55 PM EDT | Freeze Watch | CLE | 23 hr |
| May 9, 2:33 PM EDT | Freeze Warning | CLE | 17 hr |
| May 14, 1:48 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 14, 3:48 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 14, 3:49 AM EDT | Severe Thunderstorm Warning | CLE | 56 min |
| May 31, 12:23 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| May 31, 3:08 PM EDT | Flash Flood Watch | CLE | 14 hr |
| 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, 4:48 PM EDT | Severe Thunderstorm Warning | CLE | 57 min |
| Jun 2, 4:58 PM EDT | Tornado Warning | CLE | 47 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, 3:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 5, 3:08 AM EDT | Flash Flood Watch | CLE | 28 hr |
| Jun 5, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 3:07 PM EDT | Areal Flood Advisory | CLE | 10 hr |
| Jun 6, 12:30 AM EDT | Mesoscale Discussion | SPC | 3 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, 5:12 AM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Jun 6, 7:05 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 16, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 18, 6:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 4:25 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 11:52 AM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 23, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 3:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 3:41 PM EDT | Severe Thunderstorm Warning | CLE | 47 min |
| Jun 23, 10:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 23, 10:43 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 24, 12:13 AM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 27, 3:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 27, 4:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 27, 5:30 PM EDT | Severe Thunderstorm Warning | CLE | 60 min |
| Jun 27, 8:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 18, 7:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 21, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 9:51 PM EDT | Heat Advisory | CLE | 22 hr |
| Jul 23, 12:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 23, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 7:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jul 23, 7:19 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 23, 10:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 23, 11:06 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Jul 23, 11:40 PM EDT | Severe Thunderstorm Warning | CLE | 65 min |
| Jul 24, 12:43 AM EDT | River Flood Warning | CLE | 3 hr |
| Jul 24, 3:42 AM EDT | Heat Advisory | CLE | 16 hr |
| Jul 24, 5:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 24, 6:10 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 24, 6:29 PM EDT | Severe Thunderstorm Warning | CLE | 46 min |
| Jul 24, 7:21 PM EDT | Severe Thunderstorm Warning | CLE | 54 min |
| Jul 24, 8:22 PM EDT | Areal Flood Advisory | CLE | 6 hr |
| Jul 28, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 4:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 28, 6:03 PM EDT | Severe Thunderstorm Warning | CLE | 57 min |
| Jul 28, 7:42 PM EDT | Severe Thunderstorm Warning | CLE | 63 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 5, 7:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 11:42 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Aug 11, 11:56 PM EDT | Areal Flood Warning | CLE | 3 hr |
| Aug 14, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 15, 6:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Sep 7, 6:21 PM EDT | Severe Thunderstorm Warning | CLE | 69 min |
| Sep 16, 1:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 16, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 16, 4:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Sep 16, 5:50 PM EDT | Severe Thunderstorm Warning | CLE | 55 min |
| Sep 16, 6:00 PM EDT | Severe Thunderstorm Warning | CLE | 60 min |
| Sep 16, 6:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Sep 24, 12:08 PM EDT | Wind Advisory | CLE | 6 hr |
| Oct 11, 3:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Oct 19, 3:45 PM EDT | Frost Advisory | CLE | 16 hr |
| Oct 21, 3:34 PM EDT | Frost Advisory | CLE | 17 hr |
| Oct 25, 4:12 AM EDT | High Wind Watch | CLE | 11 hr |
| Oct 25, 3:40 PM EDT | Wind Advisory | CLE | 26 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, 5:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Nov 5, 3:14 PM EDT | Lake Effect Snow Advisory | CLE | 19 hr |
| Nov 10, 3:34 AM EST | Dense Fog Advisory | CLE | 5 hr |
| Nov 24, 3:06 PM EST | Flood Watch | CLE | 36 hr |
| Dec 4, 10:50 AM EST | Lake Effect Snow Watch | CLE | 28 hr |
| Dec 4, 10:14 PM EST | Lake Effect Snow Warning | CLE | 4 days |
| Dec 8, 3:24 AM EST | Lake Effect Snow Advisory | CLE | 36 hr |
| Dec 10, 3:37 PM EST | Winter Storm Watch | CLE | 37 hr |
| Dec 12, 4:58 AM EST | Winter Storm Warning | CLE | 53 hr |
| Dec 14, 10:00 AM EST | Winter Storm Warning | CLE | 29 hr |
| Dec 15, 3:31 AM EST | Lake Effect Snow Advisory | CLE | 12 hr |
| Dec 29, 3:24 PM EST | Freezing Rain Advisory | CLE | 20 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.