Alert archive / Pennsylvania / Crawford County
Weather alerts in Crawford County, Pennsylvania, 2017
117 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Crawford County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 117
- Warnings
- 32
- Watches
- 13
- Advisories
- 26
- Busiest month
- May18 alerts
- Busiest day
- June 18, 20179 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Crawford County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 20 | 18 | 10% | 26 | 96% | 31 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 62 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cleveland, OH: tornado warnings | 15 | 5 | 67% | 24 | 50% | 10 min |
| NWS Cleveland, OH: severe thunderstorm warnings | 148 | 107 | 28% | 281 | 76% | 22 min |
| NWS Cleveland, OH: flash flood warnings | 17 | 8 | 53% | 16 | 100% | 50 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 4, 2:32 AM EST | Lake Effect Snow Advisory | CLE | 3 days |
| Jan 7, 12:16 PM EST | Lake Effect Snow Advisory | CLE | 28 hr |
| Jan 9, 12:52 PM EST | Winter Weather Advisory | CLE | 24 hr |
| Jan 9, 2:59 PM EST | Wind Advisory | CLE | 33 hr |
| Jan 10, 5:58 PM EST | High Wind Warning | CLE | 10 hr |
| Jan 11, 3:39 PM EST | Flood Watch | CLE | 26 hr |
| Jan 12, 8:34 AM EST | Areal Flood Warning | CLE | 9 hr |
| Jan 12, 12:06 PM EST | River Flood Warning | CLE | 57 hr |
| Jan 12, 5:30 PM EST | Areal Flood Advisory | CLE | 18 hr |
| Jan 29, 1:14 PM EST | Lake Effect Snow Advisory | CLE | 24 hr |
| Jan 30, 2:40 PM EST | Winter Weather Advisory | CLE | 21 hr |
| Feb 1, 8:27 AM EST | Lake Effect Snow Advisory | CLE | 3 hr |
| Feb 2, 3:22 AM EST | Special Weather Statement | CLE | 83 min |
| Feb 9, 11:53 AM EST | Lake Effect Snow Advisory | CLE | 10 hr |
| Feb 11, 3:38 AM EST | Winter Storm Watch | CLE | 24 hr |
| Feb 12, 3:42 AM EST | Winter Weather Advisory | CLE | 29 hr |
| Feb 12, 3:53 AM EST | Wind Advisory | CLE | 21 hr |
| Feb 15, 3:31 AM EST | Lake Effect Snow Advisory | CLE | 35 hr |
| Feb 24, 8:49 PM EST | Mesoscale Discussion | SPC | 116 min |
| Mar 1, 2:10 AM EST | Severe Thunderstorm Warning | CLE | 80 min |
| Mar 1, 2:19 AM EST | Mesoscale Discussion | SPC | 86 min |
| Mar 1, 2:51 AM EST | Wind Advisory | CLE | 25 hr |
| Mar 1, 5:45 AM EST | Severe Thunderstorm Warning | CLE | 75 min |
| Mar 1, 3:56 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 1, 4:49 PM EST | Severe Thunderstorm Warning | CLE | 43 min |
| Mar 3, 8:06 AM EST | Special Weather Statement | CLE | 84 min |
| Mar 7, 12:01 PM EST | Wind Advisory | CLE | 33 hr |
| Mar 12, 4:04 AM EDT | Winter Storm Watch | CLE | 19 hr |
| Mar 12, 10:46 PM EDT | Winter Storm Warning | CLE | 65 hr |
| Apr 6, 1:53 PM EDT | Winter Weather Advisory | CLE | 21 hr |
| Apr 16, 2:15 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 20, 2:40 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 20, 6:05 PM EDT | Special Weather Statement | CLE | 40 min |
| Apr 20, 6:21 PM EDT | Special Weather Statement | CLE | 24 min |
| Apr 27, 6:17 PM EDT | Special Weather Statement | CLE | 43 min |
| Apr 30, 2:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 30, 4:28 PM EDT | Special Weather Statement | CLE | 62 min |
| Apr 30, 4:41 PM EDT | Severe Thunderstorm Warning | CLE | 35 min |
| May 1, 12:32 PM EDT | Tornado Watch | SPC | 4 hr |
| May 1, 1:45 PM EDT | Severe Thunderstorm Warning | CLE | 60 min |
| May 1, 2:22 PM EDT | Severe Thunderstorm Warning | CLE | 53 min |
| May 2, 3:12 AM EDT | Wind Advisory | CLE | 15 hr |
| May 7, 2:10 PM EDT | Freeze Warning | CLE | 19 hr |
| May 8, 3:32 AM EDT | Freeze Warning | CLE | 29 hr |
| May 18, 2:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 18, 8:18 PM EDT | Severe Thunderstorm Warning | CLE | 42 min |
| May 18, 9:02 PM EDT | Special Weather Statement | CLE | 43 min |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 2:53 PM EDT | Special Weather Statement | CLE | 52 min |
| May 28, 3:46 PM EDT | Special Weather Statement | CLE | 59 min |
| May 28, 3:58 PM EDT | Flash Flood Warning | CLE | 3 hr |
| May 28, 4:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 5:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 28, 6:59 PM EDT | Areal Flood Warning | CLE | 3 hr |
| May 28, 7:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 31, 2:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 15, 6:49 PM EDT | Severe Thunderstorm Warning | CLE | 26 min |
| Jun 18, 12:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 18, 1:31 PM EDT | Severe Thunderstorm Warning | CLE | 44 min |
| Jun 18, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 18, 2:06 PM EDT | Special Weather Statement | CLE | 24 min |
| Jun 18, 2:40 PM EDT | Severe Thunderstorm Warning | CLE | 65 min |
| Jun 18, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 18, 6:10 PM EDT | Severe Thunderstorm Warning | CLE | 50 min |
| Jun 18, 6:37 PM EDT | Severe Thunderstorm Warning | CLE | 68 min |
| Jun 18, 6:53 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Jun 19, 7:04 PM EDT | Severe Thunderstorm Warning | CLE | 41 min |
| Jun 22, 1:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 3:42 PM EDT | Special Weather Statement | CLE | 33 min |
| Jun 26, 4:14 PM EDT | Special Weather Statement | CLE | 46 min |
| Jun 30, 5:33 PM EDT | Flash Flood Watch | CLE | 6 hr |
| Jun 30, 6:47 PM EDT | Special Weather Statement | CLE | 88 min |
| Jul 1, 5:51 PM EDT | Special Weather Statement | CLE | 39 min |
| Jul 1, 6:41 PM EDT | Special Weather Statement | CLE | 49 min |
| Jul 7, 9:07 AM EDT | Special Weather Statement | CLE | 53 min |
| Jul 12, 3:18 PM EDT | Flash Flood Watch | CLE | 37 hr |
| Jul 16, 9:05 PM EDT | Special Weather Statement | CLE | 85 min |
| Jul 20, 11:36 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 4, 11:23 AM EDT | Severe Thunderstorm Warning | CLE | 67 min |
| Aug 4, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 12:18 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Aug 4, 12:48 PM EDT | Flash Flood Warning | CLE | 6 hr |
| Aug 4, 12:57 PM EDT | Severe Thunderstorm Warning | CLE | 63 min |
| Aug 4, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 4, 2:58 PM EDT | Severe Thunderstorm Warning | CLE | 77 min |
| Aug 4, 3:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 4, 4:12 PM EDT | Severe Thunderstorm Warning | CLE | 34 min |
| Aug 11, 12:39 PM EDT | Special Weather Statement | CLE | 21 min |
| Aug 17, 8:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 22, 10:00 AM EDT | Special Weather Statement | CLE | 60 min |
| Aug 22, 1:18 PM EDT | Special Weather Statement | CLE | 57 min |
| Sep 4, 6:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 4, 11:40 PM EDT | Severe Thunderstorm Warning | CLE | 35 min |
| Sep 5, 12:17 AM EDT | Severe Thunderstorm Warning | CLE | 28 min |
| Sep 6, 6:02 AM EDT | Special Weather Statement | CLE | 118 min |
| Sep 15, 12:37 AM EDT | Dense Fog Advisory | CLE | 9 hr |
| Sep 30, 2:00 PM EDT | Frost Advisory | CLE | 18 hr |
| Oct 10, 1:53 AM EDT | Dense Fog Advisory | CLE | 8 hr |
| Oct 15, 3:01 PM EDT | Special Weather Statement | CLE | 74 min |
| Oct 15, 3:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Oct 16, 3:04 PM EDT | Frost Advisory | CLE | 19 hr |
| Nov 5, 2:08 AM EST | Flash Flood Watch | CLE | 25 hr |
| Nov 5, 4:51 PM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 5, 5:28 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 5, 6:46 PM EST | Severe Thunderstorm Warning | CLE | 59 min |
| Nov 17, 2:45 PM EST | Wind Advisory | CLE | 42 hr |
| Dec 10, 4:06 AM EST | Winter Storm Watch | CLE | 34 hr |
| Dec 11, 1:42 PM EST | Lake Effect Snow Warning | CLE | 49 hr |
| Dec 13, 3:08 PM EST | Winter Storm Warning | CLE | 16 hr |
| Dec 15, 3:41 AM EST | Winter Weather Advisory | CLE | 36 hr |
| Dec 23, 3:24 PM EST | Winter Weather Advisory | CLE | 48 hr |
| Dec 24, 4:38 AM EST | Lake Effect Snow Warning | CLE | 3 days |
| Dec 25, 10:57 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 28, 3:32 AM EST | Winter Storm Watch | CLE | 35 hr |
| Dec 29, 2:49 PM EST | Winter Weather Advisory | CLE | 36 hr |
| Dec 30, 12:07 PM EST | Special Weather Statement | CLE | 53 min |
| Dec 30, 1:13 PM EST | Special Weather Statement | CLE | 62 min |
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 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.