Alert archive / Pennsylvania / Potter County
Weather alerts in Potter County, Pennsylvania, 2026
150 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Potter County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 150
- Warnings
- 54
- Watches
- 23
- Advisories
- 33
- Busiest month
- July29 alerts
- Busiest day
- June 14, 202610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 6 tornado warnings covering Potter County in 2026 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 11 minutes after it went out.
Potter County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 2 | 67% | 2 | 100% | 11 min |
| Severe thunderstorm warnings | 29 | 22 | 24% | 10 | 100% | 20 min |
| Flash flood warnings | 4 | 1 | 75% | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 46 | 12 | 74% | 20 | 75% | 11 min |
| NWS State College, PA: severe thunderstorm warnings | 352 | 258 | 27% | 753 | 86% | 23 min |
| NWS State College, PA: flash flood warnings | 94 | 59 | 37% | 193 | 93% | 70 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 |
|---|---|---|---|
| Dec 31, 11:29 PM EST | Snow Squall Warning | CTP | 46 min |
| Jan 11, 10:07 AM EST | Snow Squall Warning | CTP | 68 min |
| Jan 11, 10:19 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 11, 10:59 AM EST | Snow Squall Warning | CTP | 61 min |
| Jan 13, 1:20 PM EST | Winter Weather Advisory | CTP | 59 hr |
| Jan 16, 1:40 AM EST | Winter Weather Advisory | CTP | 41 hr |
| Jan 17, 3:38 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 18, 1:33 PM EST | Cold Weather Advisory | CTP | 47 hr |
| Jan 19, 11:45 AM EST | Snow Squall Warning | CTP | 45 min |
| Jan 19, 11:50 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 19, 12:27 PM EST | Snow Squall Warning | CTP | 63 min |
| Jan 20, 4:50 AM EST | Winter Storm Watch | CTP | 9 hr |
| Jan 20, 1:52 PM EST | Winter Weather Advisory | CTP | 44 hr |
| Jan 21, 10:14 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 22, 2:06 AM EST | Winter Storm Watch | CTP | 32 hr |
| Jan 22, 7:26 AM EST | Snow Squall Warning | CTP | 49 min |
| Jan 22, 8:52 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 22, 12:09 PM EST | Cold Weather Advisory | CTP | 46 hr |
| Jan 23, 10:20 AM EST | Winter Storm Warning | CTP | 64 hr |
| Jan 25, 11:55 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 26, 2:14 AM EST | Cold Weather Advisory | CTP | 35 hr |
| Jan 27, 1:16 AM EST | Cold Weather Advisory | CTP | 33 hr |
| Jan 28, 1:20 AM EST | Cold Weather Advisory | CTP | 35 hr |
| Jan 29, 1:12 AM EST | Cold Weather Advisory | CTP | 33 hr |
| Jan 30, 1:08 AM EST | Cold Weather Advisory | CTP | 34 hr |
| Jan 31, 1:32 AM EST | Cold Weather Advisory | CTP | 32 hr |
| Feb 5, 2:02 AM EST | Extreme Cold Watch | CTP | 24 hr |
| Feb 6, 2:03 AM EST | Extreme Cold Warning | CTP | 56 hr |
| Feb 8, 1:12 PM EST | Cold Weather Advisory | CTP | 20 hr |
| Feb 18, 8:02 PM EST | Dense Fog Advisory | CTP | 15 hr |
| Feb 21, 11:09 PM EST | Winter Weather Advisory | CTP | 35 hr |
| Feb 24, 1:58 AM EST | Winter Weather Advisory | CTP | 33 hr |
| Feb 25, 3:01 PM EST | Special Weather Statement | CTP | 44 min |
| Mar 2, 2:01 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Mar 3, 5:58 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 3, 10:16 PM EST | Dense Fog Advisory | CTP | 11 hr |
| Mar 4, 8:37 PM EST | Dense Fog Advisory | CTP | 10 hr |
| Mar 7, 1:23 PM EST | Tornado Watch | SPC | 5 hr |
| Mar 12, 3:00 AM EDT | Wind Advisory | CTP | 59 hr |
| Mar 13, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | 31 min |
| Mar 15, 2:30 AM EDT | Wind Advisory | CTP | 54 hr |
| Mar 16, 3:33 AM EDT | Winter Weather Advisory | CTP | 37 hr |
| Mar 16, 6:13 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 31, 2:16 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 31, 6:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 31, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Apr 3, 4:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | 33 min |
| Apr 4, 5:57 AM EDT | Dense Fog Advisory | CTP | 4 hr |
| Apr 15, 4:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 5:45 PM EDT | Severe Thunderstorm Warning | CTP | 45 min |
| Apr 15, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| Apr 15, 8:23 PM EDT | Severe Thunderstorm Warning | CTP | 37 min |
| Apr 16, 4:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 30, 1:42 AM EDT | Frost Advisory | CTP | 30 hr |
| Apr 30, 12:57 PM EDT | Freeze Warning | CTP | 19 hr |
| May 1, 12:56 PM EDT | Freeze Warning | CTP | 20 hr |
| May 2, 12:14 PM EDT | Freeze Warning | CTP | 21 hr |
| May 6, 12:55 PM EDT | Frost Advisory | CTP | 19 hr |
| May 7, 12:18 PM EDT | Frost Advisory | CTP | 20 hr |
| May 10, 1:14 PM EDT | Frost Advisory | CTP | 19 hr |
| May 10, 1:14 PM EDT | Freeze Watch | CTP | 23 hr |
| May 10, 7:51 PM EDT | Freeze Warning | CTP | 12 hr |
| May 11, 12:37 PM EDT | Freeze Warning | CTP | 19 hr |
| May 13, 11:56 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 13, 4:08 PM EDT | Special Weather Statement | CTP | 52 min |
| Jun 6, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 6, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 2:01 PM EDT | Special Weather Statement | CTP | 44 min |
| Jun 6, 3:04 PM EDT | Special Weather Statement | CTP | 41 min |
| Jun 11, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 11, 3:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 11, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| Jun 11, 5:50 PM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Jun 14, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 14, 4:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 14, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Jun 14, 5:29 PM EDT | Tornado Warning | CTP | 31 min |
| Jun 14, 5:41 PM EDT | Tornado Watch | SPC | 4 hr |
| Jun 14, 5:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 14, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | 26 min |
| Jun 14, 6:41 PM EDT | Severe Thunderstorm Warning | CTP | 49 min |
| Jun 14, 7:14 PM EDT | Tornado Warning | CTP | 31 min |
| Jun 14, 7:39 PM EDT | Severe Thunderstorm Warning | CTP | 66 min |
| Jun 18, 9:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 20, 9:26 PM EDT | Special Weather Statement | CTP | 34 min |
| Jun 21, 3:53 AM EDT | Dense Fog Advisory | CTP | 4 hr |
| Jun 25, 5:56 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 29, 1:20 PM EDT | Heat Advisory | CTP | 4 days |
| Jul 3, 12:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 2:37 PM EDT | Special Weather Statement | CTP | 23 min |
| Jul 3, 2:44 PM EDT | Severe Thunderstorm Warning | CTP | 46 min |
| Jul 3, 3:18 PM EDT | Special Weather Statement | CTP | 27 min |
| Jul 3, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 4:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 4, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:58 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Jul 4, 3:05 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 3:41 PM EDT | Severe Thunderstorm Warning | CTP | 49 min |
| Jul 4, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | 46 min |
| Jul 4, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Jul 5, 3:17 AM EDT | Flood Watch | CTP | 52 hr |
| Jul 5, 3:17 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| Jul 5, 4:01 PM EDT | Flash Flood Warning | CTP | 2 hr |
| Jul 6, 2:57 AM EDT | Flash Flood Warning | CTP | 108 min |
| Jul 6, 6:27 PM EDT | Flash Flood Warning | CTP | 6 hr |
| Jul 7, 12:46 AM EDT | Areal Flood Warning | CTP | 6 hr |
| Jul 9, 4:00 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Jul 10, 8:18 PM EDT | Flash Flood Warning | CTP | 3 hr |
| Jul 13, 2:04 AM EDT | Heat Advisory | CTP | 66 hr |
| Jul 18, 12:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 18, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 5:28 PM EDT | Severe Thunderstorm Warning | CTP | 62 min |
| Jul 18, 6:04 PM EDT | Tornado Warning | CTP | 14 min |
| Jul 18, 6:26 PM EDT | Severe Thunderstorm Warning | CTP | 64 min |
| Jul 27, 11:59 PM EDT | Severe Thunderstorm Warning | CTP | 61 min |
| Jul 28, 11:21 AM EDT | Areal Flood Warning | CTP | 114 min |
| Aug 2, 2:17 AM EDT | Flood Watch | CTP | 24 hr |
| Aug 10, 9:29 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 11:44 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 11:53 AM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Aug 12, 1:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 12:33 AM EDT | Dense Fog Advisory | CTP | 9 hr |
| Aug 22, 7:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 23, 12:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 1, 5:04 PM EDT | Severe Thunderstorm Warning | CTP | 41 min |
| Sep 1, 5:13 PM EDT | Tornado Warning | CTP | 32 min |
| Sep 1, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | 48 min |
| Sep 2, 8:51 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 2, 3:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 2, 4:56 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 2, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | 43 min |
| Sep 2, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Sep 2, 8:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 2, 8:50 PM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Sep 2, 8:58 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Sep 2, 11:43 PM EDT | Severe Thunderstorm Warning | CTP | 41 min |
| Sep 3, 12:23 AM EDT | Severe Thunderstorm Warning | CTP | 61 min |
| Sep 3, 2:42 AM EDT | Flood Watch | CTP | 20 hr |
| Sep 3, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 9, 2:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 9, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 9, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 9, 8:08 PM EDT | Tornado Warning | CTP | 37 min |
| Sep 9, 8:59 PM EDT | Tornado Warning | CTP | 31 min |
| Sep 13, 3:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 13, 6:26 PM EDT | Special Weather Statement | CTP | 49 min |
| Sep 24, 12:58 PM EDT | Frost Advisory | CTP | 19 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 archive2025
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.