Alert archive / Pennsylvania / Crawford County
Weather alerts in Crawford County, Pennsylvania, 2009
106 weather alerts in 2009, 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 2009. Tap one for its archive.
- Alerts
- 106
- Warnings
- 34
- Watches
- 16
- Advisories
- 36
- Busiest month
- January20 alerts
- Busiest day
- August 10, 20098 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 Crawford County in 2009 had a tornado report inside them.
Crawford County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 11 | 7 | 36% | 10 | 90% | 28 min |
| Flash flood warnings | 3 | 0 | 100% | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cleveland, OH: tornado warnings | 13 | 2 | 85% | 3 | 67% | 19 min |
| NWS Cleveland, OH: severe thunderstorm warnings | 132 | 84 | 36% | 137 | 92% | 24 min |
| NWS Cleveland, OH: flash flood warnings | 14 | 2 | 86% | 6 | 83% | 75 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 3, 9:27 PM EST | Freezing Rain Advisory | CLE | 14 hr |
| Jan 4, 11:59 AM EST | Dense Fog Advisory | CLE | 8 hr |
| Jan 5, 9:53 PM EST | Winter Weather Advisory | CLE | 36 hr |
| Jan 7, 8:00 PM EST | Lake Effect Snow Advisory | CLE | 37 hr |
| Jan 8, 4:10 PM EST | Winter Storm Watch | CLE | 19 hr |
| Jan 9, 11:12 AM EST | Winter Storm Warning | CLE | 32 hr |
| Jan 10, 6:33 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 10, 3:29 PM EST | Winter Weather Advisory | CLE | 13 hr |
| Jan 12, 2:51 PM EST | Wind Chill Advisory | CLE | 31 hr |
| Jan 12, 2:51 PM EST | Winter Weather Advisory | CLE | 31 hr |
| Jan 14, 3:45 AM EST | Lake Effect Snow Watch | CLE | 12 hr |
| Jan 14, 3:50 PM EST | Lake Effect Snow Warning | CLE | 42 hr |
| Jan 14, 3:50 PM EST | Wind Chill Advisory | CLE | 69 hr |
| Jan 15, 3:54 AM EST | Wind Chill Warning | CLE | 34 hr |
| Jan 17, 2:54 PM EST | Winter Weather Advisory | CLE | 24 hr |
| Jan 18, 8:56 AM EST | Winter Storm Warning | CLE | 6 hr |
| Jan 26, 2:41 PM EST | Winter Storm Watch | CLE | 13 hr |
| Jan 27, 3:29 AM EST | Winter Storm Warning | CLE | 40 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 7:40 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 4, 10:39 AM EST | Lake Effect Snow Advisory | CLE | 16 hr |
| Feb 10, 2:53 PM EST | Flood Watch | CLE | 34 hr |
| Feb 10, 3:10 PM EST | High Wind Watch | CLE | 12 hr |
| Feb 11, 3:11 AM EST | High Wind Warning | CLE | 31 hr |
| Feb 11, 8:54 AM EST | Areal Flood Warning | CLE | 12 hr |
| Feb 11, 10:04 AM EST | River Flood Warning | CLE | 55 hr |
| Feb 11, 5:53 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Feb 11, 8:00 PM EST | Severe Thunderstorm Warning | CLE | 60 min |
| Feb 11, 8:00 PM EST | Mesoscale Discussion | SPC | 60 min |
| Feb 11, 8:40 PM EST | Areal Flood Warning | CLE | 16 hr |
| Feb 12, 3:56 AM EST | Wind Advisory | CLE | 15 hr |
| Feb 12, 12:34 PM EST | Areal Flood Warning | CLE | 12 hr |
| Feb 17, 3:22 PM EST | Lake Effect Snow Watch | CLE | 24 hr |
| Feb 18, 3:15 PM EST | Lake Effect Snow Warning | CLE | 44 hr |
| Feb 19, 2:46 PM EST | Lake Effect Snow Advisory | CLE | 30 hr |
| Feb 22, 3:36 AM EST | Lake Effect Snow Advisory | CLE | 35 hr |
| Mar 8, 3:15 PM EDT | Wind Advisory | CLE | 18 hr |
| Mar 8, 9:38 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Mar 9, 3:30 PM EDT | Flood Watch | CLE | 41 hr |
| Mar 10, 4:41 AM EDT | Wind Advisory | CLE | 35 hr |
| Mar 10, 9:31 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Mar 17, 7:16 AM EDT | Dense Fog Advisory | CLE | 3 hr |
| Apr 3, 3:02 PM EDT | Wind Advisory | CLE | 13 hr |
| Apr 5, 4:46 AM EDT | Winter Storm Watch | CLE | 34 hr |
| Apr 6, 3:15 PM EDT | Lake Effect Snow Warning | CLE | 37 hr |
| May 1, 4:33 PM EDT | Severe Thunderstorm Warning | CLE | 57 min |
| May 8, 2:59 PM EDT | Wind Advisory | CLE | 28 hr |
| May 11, 3:21 PM EDT | Frost Advisory | CLE | 17 hr |
| May 16, 12:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 17, 3:09 AM EDT | Freeze Warning | CLE | 29 hr |
| May 18, 3:02 PM EDT | Frost Advisory | CLE | 17 hr |
| May 28, 4:36 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| May 28, 5:16 PM EDT | Flash Flood Warning | CLE | 3 hr |
| Jun 1, 9:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 20, 3:20 AM EDT | Areal Flood Advisory | CLE | 3 hr |
| Jun 25, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 4:49 PM EDT | Severe Thunderstorm Warning | CLE | 41 min |
| Jun 25, 5:23 PM EDT | Severe Thunderstorm Warning | CLE | 52 min |
| Jun 25, 5:37 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Jun 25, 6:29 PM EDT | Severe Thunderstorm Warning | CLE | 31 min |
| Jun 25, 7:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 11, 10:31 AM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 11, 11:41 AM EDT | Areal Flood Advisory | CLE | 3 hr |
| Jul 11, 5:26 PM EDT | Severe Thunderstorm Warning | CLE | 34 min |
| Jul 11, 5:44 PM EDT | Tornado Warning | CLE | 19 min |
| Jul 11, 7:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 11, 9:55 PM EDT | Severe Thunderstorm Warning | CLE | 48 min |
| Jul 21, 1:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 22, 10:15 PM EDT | Areal Flood Advisory | CLE | 10 hr |
| Jul 26, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 6:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 9, 11:36 AM EDT | Mesoscale Discussion | SPC | 24 min |
| Aug 9, 11:57 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 10:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 10, 2:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 10, 3:37 PM EDT | Severe Thunderstorm Warning | CLE | 53 min |
| Aug 10, 4:01 PM EDT | Areal Flood Advisory | CLE | 6 hr |
| Aug 10, 4:24 PM EDT | Severe Thunderstorm Warning | CLE | 66 min |
| Aug 10, 4:32 PM EDT | Flash Flood Warning | CLE | 2 hr |
| Aug 10, 4:43 PM EDT | Tornado Warning | CLE | 47 min |
| Aug 11, 12:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 3:13 AM EDT | Dense Fog Advisory | CLE | 7 hr |
| Aug 18, 12:51 PM EDT | Severe Thunderstorm Warning | CLE | 54 min |
| Aug 18, 2:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 18, 6:01 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Aug 20, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 6:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Aug 20, 7:03 PM EDT | Severe Thunderstorm Warning | CLE | 72 min |
| Aug 20, 7:31 PM EDT | Flash Flood Warning | CLE | 93 min |
| Sep 27, 3:48 PM EDT | Wind Advisory | CLE | 35 hr |
| Oct 6, 3:19 PM EDT | Wind Advisory | CLE | 22 hr |
| Oct 17, 4:00 PM EDT | Freeze Warning | CLE | 17 hr |
| Oct 18, 3:19 PM EDT | Freeze Warning | CLE | 18 hr |
| Dec 8, 4:01 AM EST | High Wind Watch | CLE | 11 hr |
| Dec 8, 2:39 PM EST | High Wind Warning | CLE | 31 hr |
| Dec 8, 2:52 PM EST | Winter Weather Advisory | CLE | 13 hr |
| Dec 9, 3:39 AM EST | Lake Effect Snow Watch | CLE | 35 hr |
| Dec 9, 11:02 AM EST | Mesoscale Discussion | SPC | 88 min |
| Dec 9, 2:54 PM EST | Lake Effect Snow Warning | CLE | 53 hr |
| Dec 13, 5:07 AM EST | Freezing Rain Advisory | CLE | 4 hr |
| Dec 13, 5:16 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 4:02 PM EST | Freezing Rain Advisory | CLE | 22 hr |
| Dec 27, 4:18 AM EST | Lake Effect Snow Watch | CLE | 11 hr |
| Dec 27, 3:28 PM EST | Lake Effect Snow Warning | CLE | 44 hr |
| Dec 29, 11:42 AM EST | Lake Effect Snow Advisory | CLE | 4 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 archive20082010
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.