Alert archive / Pennsylvania / Bedford County
Weather alerts in Bedford County, Pennsylvania, 2009
126 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bedford County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 126
- Warnings
- 18
- Watches
- 20
- Advisories
- 43
- Busiest month
- June27 alerts
- Busiest day
- June 9, 20096 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bedford County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 3 | 63% | 1 | 100% | 16 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 State College, PA: tornado warnings | 13 | 3 | 77% | 5 | 80% | 22 min |
| NWS State College, PA: severe thunderstorm warnings | 166 | 86 | 48% | 182 | 80% | 26 min |
| NWS State College, PA: flash flood warnings | 38 | 23 | 39% | 43 | 93% | 64 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 5, 3:10 AM EST | Winter Storm Watch | CTP | 19 hr |
| Jan 5, 10:11 PM EST | Ice Storm Warning | CTP | 39 hr |
| Jan 6, 5:17 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 8, 3:30 PM EST | Winter Storm Watch | CTP | 23 hr |
| Jan 9, 2:32 PM EST | Winter Weather Advisory | CTP | 37 hr |
| Jan 14, 4:25 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Jan 15, 3:30 AM EST | Wind Chill Advisory | CTP | 56 hr |
| Jan 26, 3:30 AM EST | Winter Storm Watch | CTP | 32 hr |
| Jan 27, 11:40 AM EST | Winter Storm Warning | CTP | 31 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 10, 3:31 PM EST | High Wind Watch | CTP | 24 hr |
| Feb 11, 3:09 PM EST | High Wind Warning | CTP | 28 hr |
| Feb 11, 3:09 PM EST | Wind Advisory | CTP | 32 hr |
| Feb 11, 5:32 PM EST | Mesoscale Discussion | SPC | 88 min |
| Feb 11, 5:53 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Feb 11, 7:46 PM EST | Severe Thunderstorm Warning | CTP | 74 min |
| Feb 11, 8:00 PM EST | Mesoscale Discussion | SPC | 60 min |
| Feb 11, 8:41 PM EST | Severe Thunderstorm Warning | CTP | 64 min |
| Feb 17, 2:45 PM EST | Winter Weather Advisory | CTP | 34 hr |
| Feb 19, 4:16 AM EST | Wind Advisory | CTP | 18 hr |
| Mar 8, 3:29 PM EDT | Wind Advisory | CTP | 24 hr |
| Mar 10, 3:48 PM EDT | Wind Advisory | CTP | 28 hr |
| Mar 25, 7:08 AM EDT | Red Flag Warning | CTP | 9 hr |
| Mar 27, 3:55 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| Apr 3, 3:04 AM EDT | High Wind Watch | CTP | 9 hr |
| Apr 3, 9:29 AM EDT | Special Weather Statement | CTP | 61 min |
| Apr 3, 11:47 AM EDT | Wind Advisory | CTP | 28 hr |
| Apr 28, 10:43 AM EDT | Red Flag Warning | CTP | 9 hr |
| May 4, 11:32 AM EDT | Areal Flood Advisory | CTP | 6 hr |
| May 4, 7:07 PM EDT | Areal Flood Advisory | CTP | 4 hr |
| May 5, 3:11 PM EDT | Flood Watch | CTP | 36 hr |
| May 11, 5:54 PM EDT | Special Weather Statement | CTP | 36 min |
| May 15, 2:39 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| May 16, 12:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 16, 1:00 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 16, 3:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 16, 6:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 3:20 AM EDT | Frost Advisory | CTP | 30 hr |
| May 18, 3:28 PM EDT | Frost Advisory | CTP | 17 hr |
| May 23, 12:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 23, 5:08 PM EDT | Special Weather Statement | CTP | 52 min |
| May 23, 10:38 PM EDT | Flash Flood Warning | CTP | 3 hr |
| May 24, 3:34 PM EDT | Flash Flood Warning | CTP | 3 hr |
| May 24, 3:54 PM EDT | Flash Flood Warning | CTP | 3 hr |
| May 25, 6:03 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 25, 8:54 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 28, 3:52 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 28, 7:58 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 28, 8:42 PM EDT | Severe Thunderstorm Warning | CTP | 63 min |
| May 29, 11:57 AM EDT | Special Weather Statement | CTP | 48 min |
| Jun 2, 10:39 PM EDT | Special Weather Statement | CTP | 36 min |
| Jun 2, 10:43 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| Jun 2, 11:40 PM EDT | Severe Thunderstorm Warning | CTP | 65 min |
| Jun 9, 1:03 PM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| Jun 9, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 9, 1:49 PM EDT | Severe Thunderstorm Warning | CTP | 56 min |
| Jun 9, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | 44 min |
| Jun 9, 4:29 PM EDT | Special Weather Statement | CTP | 31 min |
| Jun 9, 4:30 PM EDT | Special Weather Statement | CTP | 30 min |
| Jun 10, 10:32 AM EDT | Special Weather Statement | CTP | 28 min |
| Jun 10, 1:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 10, 4:44 PM EDT | Special Weather Statement | CTP | 31 min |
| Jun 11, 4:04 AM EDT | Flash Flood Watch | CTP | 23 hr |
| Jun 11, 11:51 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 11, 6:16 PM EDT | Special Weather Statement | CTP | 29 min |
| Jun 11, 10:21 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jun 16, 8:10 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jun 17, 8:30 PM EDT | Areal Flood Advisory | CTP | 4 hr |
| Jun 19, 1:14 PM EDT | Flash Flood Watch | CTP | 20 hr |
| Jun 19, 6:28 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 20, 3:14 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 20, 3:45 AM EDT | Special Weather Statement | CTP | 90 min |
| Jun 20, 6:59 PM EDT | Special Weather Statement | CTP | 46 min |
| Jun 26, 2:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 26, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 6:48 PM EDT | Special Weather Statement | CTP | 27 min |
| Jun 26, 7:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 1, 6:30 PM EDT | Special Weather Statement | CTP | 30 min |
| Jul 1, 7:16 PM EDT | Areal Flood Advisory | CTP | 119 min |
| Jul 11, 12:43 PM EDT | Special Weather Statement | CTP | 32 min |
| Jul 21, 1:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 21, 8:29 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 25, 3:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 25, 3:50 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 1, 4:05 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Aug 2, 5:08 AM EDT | Flash Flood Watch | CTP | 10 hr |
| Aug 9, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 10, 5:09 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 10, 8:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 6:46 PM EDT | Special Weather Statement | CTP | 29 min |
| Aug 12, 12:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 13, 4:15 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Aug 14, 4:04 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| Aug 18, 2:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 19, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 20, 10:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Sep 27, 2:18 PM EDT | Wind Advisory | CTP | 29 hr |
| Sep 28, 8:45 AM EDT | Special Weather Statement | CTP | 60 min |
| Oct 6, 2:59 PM EDT | Wind Advisory | CTP | 29 hr |
| Oct 7, 5:39 AM EDT | Special Weather Statement | CTP | 51 min |
| Oct 7, 12:16 PM EDT | High Wind Warning | CTP | 5 hr |
| Oct 9, 7:35 PM EDT | Special Weather Statement | CTP | 40 min |
| Oct 11, 2:51 PM EDT | Frost Advisory | CTP | 17 hr |
| Oct 13, 3:28 AM EDT | Frost Advisory | CTP | 30 hr |
| Oct 14, 3:35 PM EDT | Winter Storm Watch | CTP | 13 hr |
| Oct 15, 4:26 AM EDT | Winter Weather Advisory | CTP | 65 hr |
| Oct 24, 5:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Nov 26, 3:07 AM EST | Dense Fog Advisory | CTP | 6 hr |
| Dec 3, 1:46 AM EST | Special Weather Statement | CTP | 59 min |
| Dec 3, 2:37 AM EST | Special Weather Statement | CTP | 38 min |
| Dec 5, 4:27 AM EST | Winter Weather Advisory | CTP | 14 hr |
| Dec 7, 2:41 PM EST | Winter Storm Watch | CTP | 21 hr |
| Dec 8, 6:12 AM EST | Winter Weather Advisory | CTP | 26 hr |
| Dec 9, 3:38 AM EST | Wind Advisory | CTP | 26 hr |
| Dec 12, 3:17 PM EST | Freezing Rain Advisory | CTP | 25 hr |
| Dec 17, 10:08 PM EST | Winter Storm Watch | CTP | 17 hr |
| Dec 18, 2:38 PM EST | Winter Storm Warning | CTP | 32 hr |
| Dec 18, 2:38 PM EST | Winter Weather Advisory | CTP | 32 hr |
| Dec 19, 6:57 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 24, 2:05 PM EST | Winter Weather Advisory | CTP | 29 hr |
| Dec 25, 7:50 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 26, 10:58 PM EST | Special Weather Statement | CTP | 4 hr |
| Dec 27, 3:58 PM EST | Winter Weather Advisory | CTP | 14 hr |
| Dec 28, 2:33 PM EST | Wind Advisory | CTP | 28 hr |
| Dec 30, 2:45 PM EST | Winter Weather Advisory | CTP | 19 hr |
| Dec 31, 6:40 PM EST | Winter Weather Advisory | CTP | 6 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 | 8 |
| Severe Thunderstorm Watch | 8 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 22 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 6 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 11 |
| Cold | |
| Frost Advisory | 4 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.