Alert archive / Pennsylvania / McKean County
Weather alerts in McKean County, Pennsylvania, 2024
133 weather alerts in 2024, 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 2024. Tap one for its archive.
- Alerts
- 133
- Warnings
- 22
- Watches
- 18
- Advisories
- 40
- Busiest month
- June29 alerts
- Busiest day
- June 26, 20248 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
McKean County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 8 | 33% | 5 | 60% | 26 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 42 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 16 | 0 | 100% | 4 | 0% | |
| NWS State College, PA: severe thunderstorm warnings | 188 | 125 | 34% | 422 | 74% | 20 min |
| NWS State College, PA: flash flood warnings | 33 | 23 | 30% | 65 | 78% | 59 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, 12:23 PM EST | Winter Weather Advisory | CTP | 34 hr |
| Jan 6, 4:27 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 8, 4:08 AM EST | Wind Advisory | CTP | 62 hr |
| Jan 8, 11:32 AM EST | Winter Weather Advisory | CTP | 27 hr |
| Jan 11, 3:21 PM EST | Wind Advisory | CTP | 54 hr |
| Jan 11, 3:31 PM EST | Winter Weather Advisory | CTP | 33 hr |
| Jan 14, 2:34 AM EST | Wind Advisory | CTP | 14 hr |
| Jan 14, 7:49 AM EST | Snow Squall Warning | CTP | 56 min |
| Jan 16, 5:11 AM EST | Wind Chill Advisory | CTP | 29 hr |
| Jan 18, 4:25 AM EST | Winter Weather Advisory | CTP | 66 hr |
| Jan 20, 3:27 PM EST | Special Weather Statement | CTP | 78 min |
| Jan 22, 10:03 AM EST | Winter Weather Advisory | CTP | 33 hr |
| Jan 24, 11:26 AM EST | Special Weather Statement | CTP | 94 min |
| Jan 24, 1:36 PM EST | Special Weather Statement | CTP | 114 min |
| Jan 24, 5:45 PM EST | Dense Fog Advisory | CTP | 16 hr |
| Jan 25, 10:43 AM EST | Dense Fog Advisory | CTP | 22 hr |
| Feb 10, 2:46 PM EST | Winter Storm Watch | CTP | 48 hr |
| Feb 15, 3:50 PM EST | Wind Advisory | CTP | 18 hr |
| Feb 17, 11:34 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 3:22 AM EST | Dense Fog Advisory | CTP | 6 hr |
| Feb 27, 2:47 PM EST | Wind Advisory | CTP | 37 hr |
| Mar 9, 3:20 AM EST | Winter Weather Advisory | CTP | 47 hr |
| Mar 10, 12:13 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 10, 7:08 PM EDT | Special Weather Statement | CTP | 67 min |
| Mar 20, 8:00 AM EDT | Special Weather Statement | CTP | 60 min |
| Mar 20, 9:03 AM EDT | Special Weather Statement | CTP | 57 min |
| Mar 20, 10:03 AM EDT | Special Weather Statement | CTP | 57 min |
| Mar 20, 12:00 PM EDT | Special Weather Statement | CTP | 60 min |
| Apr 1, 2:08 PM EDT | Flood Watch | CTP | 60 hr |
| Apr 11, 10:29 PM EDT | Areal Flood Advisory | CTP | 91 min |
| Apr 11, 11:37 PM EDT | Special Weather Statement | CTP | 23 min |
| Apr 12, 1:23 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Apr 12, 1:33 AM EDT | Special Weather Statement | CTP | 42 min |
| Apr 12, 10:25 AM EDT | Wind Advisory | CTP | 32 hr |
| Apr 14, 4:51 PM EDT | Special Weather Statement | CTP | 24 min |
| Apr 14, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 14, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | 49 min |
| Apr 23, 3:01 PM EDT | Freeze Watch | CTP | 23 hr |
| Apr 24, 1:53 PM EDT | Freeze Warning | CTP | 18 hr |
| Apr 25, 1:32 PM EDT | Freeze Warning | CTP | 18 hr |
| May 20, 5:18 AM EDT | Dense Fog Advisory | CTP | 4 hr |
| May 22, 12:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 22, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | 75 min |
| May 25, 11:39 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 26, 12:09 AM EDT | Dense Fog Advisory | CTP | 10 hr |
| May 29, 3:13 PM EDT | Areal Flood Advisory | CTP | 92 min |
| May 30, 2:01 PM EDT | Frost Advisory | CTP | 18 hr |
| May 31, 2:13 PM EDT | Frost Advisory | CTP | 17 hr |
| Jun 9, 7:01 PM EDT | Special Weather Statement | CTP | 29 min |
| Jun 16, 3:20 PM EDT | Heat Advisory | CTP | 7 days |
| Jun 17, 4:27 PM EDT | Special Weather Statement | CTP | 33 min |
| Jun 17, 5:02 PM EDT | Special Weather Statement | CTP | 28 min |
| Jun 17, 6:12 PM EDT | Special Weather Statement | CTP | 48 min |
| Jun 17, 6:50 PM EDT | Special Weather Statement | CTP | 55 min |
| Jun 17, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | 51 min |
| Jun 18, 1:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 18, 4:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 18, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | 63 min |
| Jun 19, 9:17 PM EDT | Special Weather Statement | CTP | 28 min |
| Jun 19, 10:15 PM EDT | Areal Flood Advisory | CTP | 90 min |
| Jun 20, 12:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 20, 4:48 PM EDT | Areal Flood Advisory | CTP | 2 hr |
| Jun 20, 5:51 PM EDT | Areal Flood Advisory | CTP | 2 hr |
| Jun 20, 8:18 PM EDT | Areal Flood Advisory | CTP | 70 min |
| Jun 20, 8:21 PM EDT | Special Weather Statement | CTP | 24 min |
| Jun 23, 1:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 26, 12:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 2:11 PM EDT | Severe Thunderstorm Warning | CTP | 34 min |
| Jun 26, 2:44 PM EDT | Severe Thunderstorm Warning | CTP | 46 min |
| Jun 26, 2:48 PM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| Jun 26, 3:20 PM EDT | Severe Thunderstorm Warning | CTP | 40 min |
| Jun 26, 3:33 PM EDT | Flash Flood Warning | CTP | 2 hr |
| Jun 26, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | 43 min |
| Jun 29, 3:42 AM EDT | Flood Watch | CTP | 15 hr |
| Jun 29, 1:11 PM EDT | Tornado Watch | SPC | 7 hr |
| Jul 10, 12:06 PM EDT | Tornado Watch | SPC | 11 hr |
| Jul 10, 12:15 PM EDT | Special Weather Statement | CTP | 45 min |
| Jul 10, 1:18 PM EDT | Severe Thunderstorm Warning | CTP | 57 min |
| Jul 15, 11:52 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 15, 12:21 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 15, 4:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 16, 10:33 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 16, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 1:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 24, 3:50 PM EDT | Special Weather Statement | CTP | 40 min |
| Jul 24, 5:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 5, 12:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 5, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 5, 4:32 PM EDT | Special Weather Statement | CTP | 28 min |
| Aug 5, 4:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 5, 5:51 PM EDT | Special Weather Statement | CTP | 54 min |
| Aug 7, 3:24 PM EDT | Flood Watch | CTP | 48 hr |
| Aug 9, 9:54 AM EDT | Areal Flood Warning | CTP | 10 hr |
| Aug 10, 5:19 AM EDT | Special Weather Statement | CTP | 116 min |
| Aug 11, 3:21 PM EDT | Special Weather Statement | CTP | 24 min |
| Aug 17, 6:36 PM EDT | Special Weather Statement | CTP | 24 min |
| Aug 17, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | 35 min |
| Aug 17, 7:29 PM EDT | Special Weather Statement | CTP | 31 min |
| Aug 17, 9:21 PM EDT | Areal Flood Advisory | CTP | 4 hr |
| Sep 2, 4:27 AM EDT | Frost Advisory | CTP | 29 hr |
| Sep 4, 7:07 AM EDT | Special Weather Statement | CTP | 83 min |
| Sep 6, 8:22 PM EDT | Special Weather Statement | CTP | 23 min |
| Sep 21, 2:37 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 21, 8:00 PM EDT | Severe Thunderstorm Warning | CTP | 45 min |
| Sep 22, 2:35 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| Oct 6, 4:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Oct 6, 4:55 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 6, 6:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 6, 7:26 PM EDT | Special Weather Statement | CTP | 34 min |
| Oct 8, 8:10 AM EDT | Special Weather Statement | CTP | 80 min |
| Oct 9, 1:17 PM EDT | Frost Advisory | CTP | 20 hr |
| Oct 10, 3:04 AM EDT | Freeze Watch | CTP | 10 hr |
| Oct 10, 12:45 PM EDT | Freeze Warning | CTP | 20 hr |
| Oct 14, 2:36 AM EDT | Freeze Watch | CTP | 12 hr |
| Oct 14, 2:34 PM EDT | Frost Advisory | CTP | 18 hr |
| Oct 15, 12:36 PM EDT | Freeze Warning | CTP | 20 hr |
| Oct 16, 1:44 PM EDT | Freeze Warning | CTP | 19 hr |
| Nov 20, 11:39 AM EST | Winter Weather Advisory | CTP | 52 hr |
| Nov 20, 6:19 PM EST | Special Weather Statement | CTP | 26 min |
| Nov 28, 12:57 PM EST | Winter Weather Advisory | CTP | 40 hr |
| Dec 1, 4:54 AM EST | Lake Effect Snow Warning | CTP | 62 hr |
| Dec 3, 3:22 AM EST | Winter Storm Watch | CTP | 25 hr |
| Dec 3, 2:37 PM EST | Wind Advisory | CTP | 52 hr |
| Dec 4, 4:21 AM EST | Lake Effect Snow Warning | CTP | 64 hr |
| Dec 5, 1:47 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 5, 9:50 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 12, 5:42 AM EST | Wind Advisory | CTP | 9 hr |
| Dec 14, 3:30 AM EST | Winter Weather Advisory | CTP | 55 hr |
| Dec 28, 5:40 PM EST | Dense Fog Advisory | CTP | 15 hr |
| Dec 29, 4:45 PM EST | Wind Advisory | CTP | 11 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 | 12 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 31 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flood Watch | 3 |
| Areal Flood Advisory | 8 |
| Winter | |
| Lake Effect Snow Warning | 2 |
| Snow Squall Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 3 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.