Alert archive / Ohio / Cuyahoga County
Weather alerts in Cuyahoga County, Ohio, 2011
186 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cuyahoga County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 186
- Warnings
- 65
- Watches
- 35
- Advisories
- 41
- Busiest month
- May39 alerts
- Busiest day
- July 19, 20118 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 Cuyahoga County in 2011 had a tornado report inside them.
Cuyahoga County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 27 | 17 | 37% | 35 | 89% | 33 min |
| Flash flood warnings | 8 | 4 | 50% | 8 | 63% | 56 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cleveland, OH: tornado warnings | 26 | 1 | 96% | 3 | 33% | 2 min |
| NWS Cleveland, OH: severe thunderstorm warnings | 300 | 189 | 37% | 448 | 85% | 24 min |
| NWS Cleveland, OH: flash flood warnings | 41 | 13 | 68% | 27 | 89% | 82 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, 9:45 PM EST | Lake Effect Snow Warning | CLE | 13 hr |
| Jan 7, 3:30 AM EST | Lake Effect Snow Watch | CLE | 24 hr |
| Jan 7, 3:18 PM EST | Lake Effect Snow Warning | CLE | 44 hr |
| Jan 10, 2:48 PM EST | Winter Weather Advisory | CLE | 61 hr |
| Jan 12, 3:25 AM EST | Winter Storm Warning | CLE | 19 hr |
| Jan 17, 3:14 PM EST | Freezing Rain Advisory | CLE | 20 hr |
| Jan 19, 3:56 AM EST | Freezing Rain Advisory | CLE | 8 hr |
| Jan 30, 3:14 PM EST | Winter Storm Watch | CLE | 25 hr |
| Jan 31, 2:54 PM EST | Winter Storm Warning | CLE | 42 hr |
| Feb 1, 12:12 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 1, 4:54 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 2, 8:54 AM EST | Winter Weather Advisory | CLE | 6 hr |
| Feb 5, 3:54 AM EST | Winter Weather Advisory | CLE | 18 hr |
| Feb 13, 11:05 PM EST | Wind Advisory | CLE | 16 hr |
| Feb 20, 3:52 AM EST | Winter Weather Advisory | CLE | 47 hr |
| Feb 23, 3:38 PM EST | Winter Storm Watch | CLE | 23 hr |
| Feb 23, 11:19 PM EST | Winter Weather Advisory | CLE | 11 hr |
| Feb 24, 3:54 AM EST | Winter Storm Warning | CLE | 36 hr |
| Feb 24, 10:41 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 25, 2:46 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 27, 3:42 AM EST | Flood Watch | CLE | 35 hr |
| Feb 28, 12:51 AM EST | Areal Flood Warning | CLE | 12 hr |
| Feb 28, 5:20 AM EST | River Flood Warning | CLE | 35 hr |
| Feb 28, 5:55 AM EST | River Flood Warning | CLE | 41 hr |
| Feb 28, 10:12 AM EST | Flash Flood Warning | CLE | 58 min |
| Feb 28, 11:16 AM EST | Areal Flood Warning | CLE | 33 hr |
| Mar 3, 11:43 AM EST | Flood Watch | CLE | 50 hr |
| Mar 5, 8:42 AM EST | Areal Flood Advisory | CLE | 10 hr |
| Mar 5, 10:45 AM EST | River Flood Warning | CLE | 27 hr |
| Mar 5, 1:48 PM EST | Flood Watch | CLE | 7 hr |
| Mar 9, 3:19 PM EST | Winter Storm Watch | CLE | 24 hr |
| Mar 9, 8:40 PM EST | River Flood Warning | CLE | 42 hr |
| Mar 10, 9:52 AM EST | Areal Flood Advisory | CLE | 7 hr |
| Mar 10, 2:51 PM EST | Winter Storm Warning | CLE | 31 hr |
| Mar 23, 2:50 PM EDT | Freezing Rain Advisory | CLE | 13 hr |
| Apr 3, 3:45 PM EDT | Wind Advisory | CLE | 24 hr |
| Apr 4, 7:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 8:32 AM EDT | Severe Thunderstorm Warning | CLE | 23 min |
| Apr 4, 5:01 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Apr 15, 3:34 PM EDT | Wind Advisory | CLE | 22 hr |
| Apr 16, 1:27 PM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Apr 16, 1:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 16, 3:49 PM EDT | Wind Advisory | CLE | 28 hr |
| Apr 17, 3:34 AM EDT | High Wind Warning | CLE | 16 hr |
| Apr 20, 11:31 AM EDT | Wind Advisory | CLE | 4 hr |
| Apr 25, 12:48 PM EDT | Flood Watch | CLE | 63 hr |
| Apr 25, 1:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 25, 3:41 PM EDT | Areal Flood Warning | CLE | 6 hr |
| Apr 26, 4:53 AM EDT | Dense Fog Advisory | CLE | 4 hr |
| Apr 26, 3:19 PM EDT | Wind Advisory | CLE | 7 hr |
| Apr 27, 12:51 PM EDT | Severe Thunderstorm Warning | CLE | 39 min |
| Apr 27, 1:19 PM EDT | Severe Thunderstorm Warning | CLE | 41 min |
| Apr 27, 9:32 PM EDT | Wind Advisory | CLE | 6 hr |
| Apr 28, 3:19 AM EDT | Mesoscale Discussion | SPC | 56 min |
| Apr 28, 3:55 AM EDT | High Wind Warning | CLE | 6 hr |
| May 4, 3:45 AM EDT | Frost Advisory | CLE | 29 hr |
| May 12, 11:04 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 12, 4:08 PM EDT | Severe Thunderstorm Warning | CLE | 67 min |
| May 12, 4:11 PM EDT | Areal Flood Advisory | CLE | 10 hr |
| May 12, 6:52 PM EDT | Mesoscale Discussion | SPC | |
| May 13, 9:27 AM EDT | Flood Watch | CLE | 14 hr |
| May 13, 12:52 PM EDT | Flash Flood Warning | CLE | 5 hr |
| May 14, 4:19 AM EDT | Flash Flood Watch | CLE | 19 hr |
| May 14, 1:59 PM EDT | Flash Flood Warning | CLE | 4 hr |
| May 14, 4:07 PM EDT | Flash Flood Warning | CLE | 4 hr |
| May 14, 6:00 PM EDT | Areal Flood Warning | CLE | 5 hr |
| May 18, 2:49 AM EDT | Dense Fog Advisory | CLE | 5 hr |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 23, 8:25 AM EDT | Mesoscale Discussion | SPC | 65 min |
| May 23, 4:28 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 23, 6:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 23, 6:49 PM EDT | Severe Thunderstorm Warning | CLE | 56 min |
| May 23, 6:58 PM EDT | Tornado Warning | CLE | 32 min |
| May 23, 7:27 PM EDT | Tornado Warning | CLE | 33 min |
| May 23, 7:37 PM EDT | Areal Flood Advisory | CLE | 113 min |
| May 23, 8:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 9:46 PM EDT | Severe Thunderstorm Warning | CLE | 38 min |
| May 25, 1:55 PM EDT | Tornado Watch | SPC | 8 hr |
| May 25, 4:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 25, 6:42 PM EDT | Areal Flood Warning | CLE | 5 hr |
| May 25, 6:45 PM EDT | Severe Thunderstorm Warning | CLE | 45 min |
| May 25, 7:09 PM EDT | Flash Flood Warning | CLE | 4 hr |
| May 25, 8:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 10:49 PM EDT | River Flood Warning | CLE | 36 hr |
| May 26, 12:15 AM EDT | Areal Flood Warning | CLE | 6 hr |
| May 26, 2:37 AM EDT | Mesoscale Discussion | SPC | 83 min |
| May 26, 11:02 AM EDT | Flood Watch | CLE | 11 hr |
| May 26, 5:48 PM EDT | Areal Flood Warning | CLE | 7 hr |
| May 26, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 6:05 PM EDT | Mesoscale Discussion | SPC | 25 min |
| May 29, 6:17 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 29, 7:10 PM EDT | Severe Thunderstorm Warning | CLE | 65 min |
| May 29, 7:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 31, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 7, 5:29 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 7, 6:47 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 7, 8:21 AM EDT | Severe Thunderstorm Warning | CLE | 39 min |
| Jun 7, 8:22 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 7, 9:00 AM EDT | Areal Flood Advisory | CLE | 4 hr |
| Jun 9, 3:29 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 3:56 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 9, 8:13 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 3:51 AM EDT | Dense Fog Advisory | CLE | 5 hr |
| Jun 21, 8:54 PM EDT | Severe Thunderstorm Warning | CLE | 66 min |
| Jun 21, 9:38 PM EDT | Severe Thunderstorm Warning | CLE | 67 min |
| Jul 2, 9:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 2, 10:27 PM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Jul 11, 10:16 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 11, 12:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 11, 1:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 18, 1:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 18, 3:43 PM EDT | Severe Thunderstorm Warning | CLE | 62 min |
| Jul 18, 3:57 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 8:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 19, 2:36 AM EDT | Areal Flood Advisory | CLE | 5 hr |
| Jul 19, 3:21 AM EDT | Areal Flood Advisory | CLE | 4 hr |
| Jul 19, 3:26 AM EDT | Flash Flood Warning | CLE | 6 hr |
| Jul 19, 4:19 AM EDT | Flash Flood Warning | CLE | 5 hr |
| Jul 19, 4:33 AM EDT | Heat Advisory | CLE | 39 hr |
| Jul 19, 6:46 AM EDT | River Flood Warning | CLE | 22 hr |
| Jul 19, 8:59 AM EDT | Areal Flood Warning | CLE | 6 hr |
| Jul 20, 3:49 AM EDT | Excessive Heat Watch | CLE | 10 hr |
| Jul 20, 2:15 PM EDT | Excessive Heat Warning | CLE | 31 hr |
| Jul 21, 3:24 PM EDT | Heat Advisory | CLE | 27 hr |
| Jul 22, 3:12 PM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Jul 22, 3:38 PM EDT | Severe Thunderstorm Warning | CLE | 52 min |
| Jul 22, 3:42 PM EDT | Flash Flood Warning | CLE | 5 hr |
| Jul 22, 4:23 PM EDT | Severe Thunderstorm Warning | CLE | 67 min |
| Jul 23, 3:40 AM EDT | Flash Flood Watch | CLE | 26 hr |
| Jul 23, 6:52 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Jul 23, 7:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 23, 7:16 PM EDT | Severe Thunderstorm Warning | CLE | 44 min |
| Jul 23, 10:02 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Jul 28, 3:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 28, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 3:56 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 1, 8:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 1, 11:12 AM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Aug 1, 12:13 PM EDT | Severe Thunderstorm Warning | CLE | 62 min |
| Aug 1, 12:16 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Aug 1, 1:06 PM EDT | Mesoscale Discussion | SPC | 24 min |
| Aug 1, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 1, 3:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 9, 6:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 9, 6:56 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 9, 7:06 PM EDT | Severe Thunderstorm Warning | CLE | 69 min |
| Aug 9, 8:13 PM EDT | Severe Thunderstorm Warning | CLE | 47 min |
| Aug 9, 8:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 13, 3:37 PM EDT | Flood Watch | CLE | 47 hr |
| Aug 14, 12:56 PM EDT | Areal Flood Warning | CLE | 6 hr |
| Aug 14, 2:46 PM EDT | River Flood Warning | CLE | 10 hr |
| Aug 14, 7:55 PM EDT | Areal Flood Warning | CLE | 6 hr |
| Aug 15, 4:14 AM EDT | Coastal Flood Statement | CLE | 16 hr |
| Aug 15, 8:19 AM EDT | Areal Flood Advisory | CLE | 5 hr |
| Aug 18, 8:53 PM EDT | Severe Thunderstorm Warning | CLE | 67 min |
| Aug 24, 9:18 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 24, 10:27 PM EDT | Tornado Watch | SPC | 5 hr |
| Aug 24, 11:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 24, 11:49 PM EDT | Severe Thunderstorm Warning | CLE | 71 min |
| Aug 28, 4:07 AM EDT | Coastal Flood Statement | CLE | 16 hr |
| Sep 1, 3:19 AM EDT | Severe Thunderstorm Warning | CLE | 26 min |
| Sep 2, 4:00 AM EDT | Heat Advisory | CLE | 16 hr |
| Sep 4, 2:21 AM EDT | Severe Thunderstorm Warning | CLE | 29 min |
| Sep 5, 4:29 AM EDT | Coastal Flood Statement | CLE | 18 hr |
| Sep 6, 4:58 AM EDT | Coastal Flood Statement | CLE | 17 hr |
| Sep 7, 4:09 AM EDT | Coastal Flood Statement | CLE | 18 hr |
| Sep 8, 4:20 AM EDT | Coastal Flood Statement | CLE | 18 hr |
| Sep 10, 8:57 AM EDT | Areal Flood Advisory | CLE | 3 hr |
| Sep 10, 9:22 AM EDT | Flood Watch | CLE | 6 hr |
| Sep 15, 4:40 AM EDT | Coastal Flood Statement | CLE | 15 hr |
| Sep 26, 3:46 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Sep 30, 4:28 AM EDT | Flood Watch | CLE | 34 hr |
| Sep 30, 5:08 AM EDT | Coastal Flood Statement | CLE | 15 hr |
| Oct 14, 3:19 PM EDT | Wind Advisory | CLE | 27 hr |
| Oct 18, 3:18 PM EDT | Flood Watch | CLE | 37 hr |
| Oct 20, 12:40 AM EDT | River Flood Warning | CLE | 10 hr |
| Oct 27, 3:40 PM EDT | Frost Advisory | CLE | 18 hr |
| Nov 13, 3:42 AM EST | Wind Advisory | CLE | 14 hr |
| Nov 14, 3:29 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 14, 4:38 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 14, 5:14 PM EST | Severe Thunderstorm Warning | CLE | 61 min |
| Nov 28, 4:36 AM EST | Flood Watch | CLE | 41 hr |
| Dec 5, 3:07 AM EST | Flood Watch | CLE | 24 hr |
| Dec 5, 9:14 PM EST | River Flood Warning | CLE | 21 hr |
| Dec 5, 9:48 PM EST | Areal Flood Advisory | CLE | 9 hr |
| Dec 27, 3:37 AM EST | Winter Weather Advisory | CLE | 27 hr |
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 | 27 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 37 |
| Flooding | |
| Areal Flood Warning | 10 |
| Flash Flood Warning | 8 |
| River Flood Warning | 9 |
| Flash Flood Watch | 2 |
| Flood Watch | 12 |
| Areal Flood Advisory | 15 |
| Winter | |
| Lake Effect Snow Warning | 2 |
| Winter Storm Warning | 4 |
| Lake Effect Snow Watch | 1 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 3 |
| Winter Weather Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Coastal Flood Statement | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.