Alert archive / Pennsylvania / McKean County
Weather alerts in McKean County, Pennsylvania, 2011
170 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McKean County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 170
- Warnings
- 36
- Watches
- 26
- Advisories
- 48
- Busiest month
- April33 alerts
- Busiest day
- May 24, 201111 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 McKean County in 2011 had a tornado report inside them.
McKean County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 27 | 12 | 56% | 6 | 100% | 35 min |
| Flash flood warnings | 1 | 1 | 0% | 2 | 50% | 77 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 40 | 7 | 83% | 23 | 35% | 22 min |
| NWS State College, PA: severe thunderstorm warnings | 243 | 127 | 48% | 332 | 83% | 28 min |
| NWS State College, PA: flash flood warnings | 79 | 46 | 42% | 114 | 76% | 101 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 8, 3:58 AM EST | Lake Effect Snow Advisory | CTP | 23 hr |
| Jan 10, 3:14 PM EST | Winter Weather Advisory | CTP | 3 days |
| Jan 20, 4:13 AM EST | Winter Weather Advisory | CTP | 40 hr |
| Jan 21, 4:10 AM EST | Lake Effect Snow Advisory | CTP | 16 hr |
| Jan 23, 2:40 PM EST | Wind Chill Advisory | CTP | 20 hr |
| Jan 29, 10:45 AM EST | Winter Weather Advisory | CTP | 5 hr |
| Jan 30, 12:16 AM EST | Special Weather Statement | CTP | 119 min |
| Jan 30, 7:18 PM EST | Winter Storm Watch | CTP | 20 hr |
| Jan 31, 3:07 PM EST | Winter Storm Warning | CTP | 40 hr |
| Feb 1, 2:42 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 1, 8:39 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 4, 2:47 PM EST | Winter Weather Advisory | CTP | 32 hr |
| Feb 7, 2:52 PM EST | Winter Weather Advisory | CTP | 19 hr |
| Feb 8, 2:11 PM EST | Wind Chill Advisory | CTP | 19 hr |
| Feb 12, 10:34 AM EST | Special Weather Statement | CTP | 86 min |
| Feb 13, 3:14 PM EST | Wind Advisory | CTP | 30 hr |
| Feb 18, 11:00 AM EST | High Wind Watch | CTP | 10 hr |
| Feb 18, 9:18 PM EST | High Wind Warning | CTP | 24 hr |
| Feb 20, 4:29 AM EST | Winter Weather Advisory | CTP | 30 hr |
| Feb 20, 2:03 PM EST | Winter Storm Warning | CTP | 20 hr |
| Feb 20, 7:46 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 20, 11:50 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 3:21 PM EST | Winter Storm Watch | CTP | 31 hr |
| Feb 24, 9:58 PM EST | Winter Storm Warning | CTP | 18 hr |
| Feb 25, 2:46 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 27, 1:59 PM EST | Flood Watch | CTP | 22 hr |
| Feb 28, 4:51 AM EST | Areal Flood Warning | CTP | 6 hr |
| Mar 4, 3:33 AM EST | Flood Watch | CTP | 3 days |
| Mar 4, 7:32 AM EST | Freezing Rain Advisory | CTP | 3 hr |
| Mar 5, 11:19 AM EST | Winter Storm Watch | CTP | 18 hr |
| Mar 5, 10:50 PM EST | Winter Weather Advisory | CTP | 32 hr |
| Mar 8, 4:25 AM EST | Flood Watch | CTP | 66 hr |
| Mar 8, 2:18 PM EST | Winter Weather Advisory | CTP | 38 hr |
| Mar 10, 5:11 PM EST | Areal Flood Warning | CTP | 12 hr |
| Mar 11, 1:01 AM EST | Winter Weather Advisory | CTP | 21 hr |
| Mar 22, 3:51 AM EDT | Winter Storm Watch | CTP | 12 hr |
| Mar 22, 3:49 PM EDT | Winter Weather Advisory | CTP | 22 hr |
| Mar 23, 5:29 PM EDT | Winter Weather Advisory | CTP | 4 hr |
| Apr 4, 10:12 AM EDT | Special Weather Statement | CTP | 33 min |
| Apr 4, 10:00 PM EDT | Flood Watch | CTP | 10 hr |
| Apr 5, 7:21 AM EDT | Areal Flood Advisory | CTP | 4 hr |
| Apr 6, 5:14 PM EDT | Winter Weather Advisory | CTP | 13 hr |
| Apr 12, 10:16 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Apr 15, 1:56 PM EDT | Wind Advisory | CTP | 32 hr |
| Apr 16, 9:40 PM EDT | Wind Advisory | CTP | 22 hr |
| Apr 20, 3:28 AM EDT | Special Weather Statement | CTP | 47 min |
| Apr 20, 4:18 AM EDT | Special Weather Statement | CTP | 42 min |
| Apr 20, 5:05 AM EDT | Special Weather Statement | CTP | 40 min |
| Apr 25, 1:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 25, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 25, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | 58 min |
| Apr 25, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | 32 min |
| Apr 25, 7:00 PM EDT | Severe Thunderstorm Warning | CTP | 30 min |
| Apr 25, 7:23 PM EDT | Special Weather Statement | CTP | 67 min |
| Apr 25, 7:34 PM EDT | Severe Thunderstorm Warning | CTP | 26 min |
| Apr 26, 11:51 AM EDT | Special Weather Statement | CTP | 39 min |
| Apr 26, 1:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 26, 1:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 26, 6:44 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Apr 26, 6:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 27, 11:16 AM EDT | Flash Flood Watch | CTP | 23 hr |
| Apr 27, 1:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 27, 3:10 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 27, 4:49 PM EDT | Special Weather Statement | CTP | 41 min |
| Apr 27, 4:55 PM EDT | Severe Thunderstorm Warning | CTP | 50 min |
| Apr 27, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | 26 min |
| Apr 27, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| Apr 27, 6:45 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Apr 27, 7:07 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Apr 27, 11:50 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 28, 6:32 AM EDT | Wind Advisory | CTP | 5 hr |
| May 3, 10:41 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 13, 5:38 PM EDT | Special Weather Statement | CTP | 112 min |
| May 14, 4:00 AM EDT | Flash Flood Watch | CTP | 24 hr |
| May 15, 9:50 AM EDT | Flash Flood Watch | CTP | 12 hr |
| May 18, 7:47 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 19, 5:03 PM EDT | Special Weather Statement | CTP | 57 min |
| May 19, 6:13 PM EDT | Flash Flood Warning | CTP | 3 hr |
| May 23, 10:33 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 23, 8:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 8:52 PM EDT | Severe Thunderstorm Warning | CTP | 53 min |
| May 23, 9:46 PM EDT | Special Weather Statement | CTP | 29 min |
| May 23, 10:17 PM EDT | Special Weather Statement | CTP | 43 min |
| May 23, 11:17 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 23, 11:18 PM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| May 23, 11:39 PM EDT | Tornado Warning | CTP | 36 min |
| May 24, 12:09 AM EDT | Severe Thunderstorm Warning | CTP | 51 min |
| May 24, 12:29 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| May 24, 12:43 AM EDT | Severe Thunderstorm Warning | CTP | 17 min |
| May 24, 1:05 AM EDT | Special Weather Statement | CTP | 55 min |
| May 25, 10:14 PM EDT | Severe Thunderstorm Warning | CTP | 61 min |
| May 25, 11:10 PM EDT | Severe Thunderstorm Warning | CTP | 65 min |
| May 25, 11:24 PM EDT | Severe Thunderstorm Warning | CTP | 66 min |
| May 26, 5:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 26, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 26, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| May 29, 6:17 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 29, 7:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 29, 9:21 PM EDT | Severe Thunderstorm Warning | CTP | 67 min |
| May 29, 9:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 30, 12:32 AM EDT | Special Weather Statement | CTP | 43 min |
| Jun 1, 8:55 AM EDT | Special Weather Statement | CTP | 80 min |
| Jun 1, 9:17 AM EDT | Severe Thunderstorm Warning | CTP | 73 min |
| Jun 1, 9:38 AM EDT | Mesoscale Discussion | SPC | 37 min |
| Jun 1, 10:23 AM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Jun 2, 3:20 AM EDT | Frost Advisory | CTP | 27 hr |
| Jun 4, 12:14 PM EDT | Special Weather Statement | CTP | 46 min |
| Jun 4, 12:47 PM EDT | Severe Thunderstorm Warning | CTP | 58 min |
| Jun 8, 1:51 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 8, 3:31 AM EDT | Special Weather Statement | CTP | 44 min |
| Jun 8, 4:08 AM EDT | Special Weather Statement | CTP | 52 min |
| 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 9, 10:36 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 9, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 5:11 PM EDT | Special Weather Statement | CTP | 34 min |
| Jun 16, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 3:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 1:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 8, 7:14 AM EDT | Special Weather Statement | CTP | 61 min |
| Jul 8, 7:52 AM EDT | Special Weather Statement | CTP | 53 min |
| Jul 20, 1:43 PM EDT | Heat Advisory | CTP | 30 hr |
| Jul 25, 11:12 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 25, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 12:45 PM EDT | Special Weather Statement | CTP | 45 min |
| Jul 25, 12:55 PM EDT | Severe Thunderstorm Warning | CTP | 65 min |
| Jul 25, 3:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 29, 3:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 1, 8:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 1, 12:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 1, 2:57 PM EDT | Special Weather Statement | CTP | 33 min |
| Aug 14, 11:10 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Aug 20, 4:15 AM EDT | Dense Fog Advisory | CTP | 7 hr |
| Aug 24, 11:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 25, 12:42 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 25, 12:54 AM EDT | Severe Thunderstorm Warning | CTP | 66 min |
| Aug 25, 1:59 AM EDT | Special Weather Statement | CTP | 31 min |
| Aug 25, 2:30 AM EDT | Special Weather Statement | CTP | 45 min |
| Aug 25, 2:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 1, 6:12 AM EDT | Special Weather Statement | CTP | 33 min |
| Sep 3, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | 33 min |
| Sep 5, 9:07 PM EDT | Flood Watch | CTP | 71 hr |
| Sep 7, 2:53 AM EDT | Areal Flood Advisory | CTP | 6 hr |
| Sep 9, 4:27 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 10, 4:01 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 10, 6:51 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 12, 12:29 AM EDT | Dense Fog Advisory | CTP | 10 hr |
| Sep 13, 7:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 13, 7:37 PM EDT | Special Weather Statement | CTP | 23 min |
| Sep 13, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | 23 min |
| Sep 13, 8:14 PM EDT | Severe Thunderstorm Warning | CTP | 46 min |
| Sep 15, 11:36 AM EDT | Frost Advisory | CTP | 20 hr |
| Sep 23, 1:15 AM EDT | Dense Fog Advisory | CTP | 9 hr |
| Sep 27, 9:12 AM EDT | Flash Flood Watch | CTP | 40 hr |
| Sep 28, 1:11 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 28, 2:00 AM EDT | Special Weather Statement | CTP | 60 min |
| Sep 28, 2:47 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Oct 4, 3:32 PM EDT | Freeze Watch | CTP | 12 hr |
| Oct 5, 3:35 AM EDT | Frost Advisory | CTP | 29 hr |
| Oct 6, 1:09 PM EDT | Frost Advisory | CTP | 19 hr |
| Oct 6, 9:47 PM EDT | Freeze Warning | CTP | 10 hr |
| Oct 14, 1:32 PM EDT | Wind Advisory | CTP | 30 hr |
| Oct 19, 1:40 AM EDT | Special Weather Statement | CTP | 50 min |
| Oct 22, 5:22 AM EDT | Frost Advisory | CTP | 28 hr |
| Oct 28, 1:19 PM EDT | Winter Weather Advisory | CTP | 30 hr |
| Nov 14, 6:03 PM EST | Mesoscale Discussion | SPC | 117 min |
| Nov 14, 6:49 PM EST | Severe Thunderstorm Warning | CTP | 56 min |
| Nov 14, 7:35 PM EST | Severe Thunderstorm Warning | CTP | 55 min |
| Dec 27, 4:15 AM EST | Winter Weather Advisory | CTP | 29 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 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.