Alert archive / Pennsylvania / Franklin County
Weather alerts in Franklin County, Pennsylvania, 2022
138 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Franklin County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 138
- Warnings
- 33
- Watches
- 22
- Advisories
- 32
- Busiest month
- March24 alerts
- Busiest day
- March 31, 20228 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 reports fell inside a warning.
Franklin County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 20 | 10 | 50% | 8 | 88% | 15 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 4 | 0 | 100% | 4 | 0% | |
| NWS State College, PA: severe thunderstorm warnings | 152 | 108 | 29% | 278 | 86% | 21 min |
| NWS State College, PA: flash flood warnings | 3 | 1 | 67% | 3 | 100% | 28 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, 2:07 PM EST | Winter Weather Advisory | CTP | 59 hr |
| Jan 6, 9:49 PM EST | Winter Storm Warning | CTP | 8 hr |
| Jan 8, 3:22 AM EST | Winter Weather Advisory | CTP | 34 hr |
| Jan 14, 4:05 AM EST | Winter Storm Watch | CTP | 35 hr |
| Jan 15, 2:58 PM EST | Winter Weather Advisory | CTP | 43 hr |
| Jan 16, 3:24 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 16, 8:32 PM EST | Wind Advisory | CTP | 22 hr |
| Jan 16, 11:12 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 19, 3:16 PM EST | Winter Weather Advisory | CTP | 20 hr |
| Feb 2, 10:45 PM EST | Winter Weather Advisory | CTP | 40 hr |
| Feb 3, 10:35 AM EST | Special Weather Statement | CTP | 85 min |
| Feb 3, 3:26 PM EST | Special Weather Statement | CTP | 2 hr |
| Feb 4, 12:39 AM EST | Areal Flood Advisory | CTP | 8 hr |
| Feb 12, 11:52 AM EST | Winter Weather Advisory | CTP | 22 hr |
| Feb 14, 3:53 AM EST | Special Weather Statement | CTP | 52 min |
| Feb 17, 3:41 AM EST | Wind Advisory | CTP | 29 hr |
| Feb 18, 2:47 PM EST | Wind Advisory | CTP | 28 hr |
| Feb 19, 12:00 PM EST | Snow Squall Warning | CTP | 75 min |
| Feb 24, 4:11 AM EST | Winter Weather Advisory | CTP | 30 hr |
| Feb 24, 9:13 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 7, 4:15 AM EST | Wind Advisory | CTP | 21 hr |
| Mar 7, 3:53 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 7, 4:54 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 7, 6:26 PM EST | Severe Thunderstorm Warning | CTP | 34 min |
| Mar 11, 4:26 AM EST | Winter Storm Watch | CTP | 7 hr |
| Mar 11, 4:26 AM EST | Winter Storm Warning | CTP | 37 hr |
| Mar 12, 9:19 AM EST | Special Weather Statement | CTP | 56 min |
| Mar 12, 12:29 PM EST | Special Weather Statement | CTP | 61 min |
| Mar 12, 5:03 PM EST | Winter Weather Advisory | CTP | 8 hr |
| Mar 18, 12:29 AM EDT | Dense Fog Advisory | CTP | 11 hr |
| Mar 19, 3:53 PM EDT | Special Weather Statement | CTP | 37 min |
| Mar 19, 4:21 PM EDT | Special Weather Statement | CTP | 39 min |
| Mar 28, 12:30 PM EDT | Snow Squall Warning | CTP | 75 min |
| Mar 28, 1:50 PM EDT | Snow Squall Warning | CTP | 40 min |
| Mar 28, 2:44 PM EDT | Snow Squall Warning | CTP | 61 min |
| Mar 29, 1:38 PM EDT | Winter Weather Advisory | CTP | 24 hr |
| Mar 31, 12:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Mar 31, 2:01 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 3:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| Mar 31, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | 29 min |
| Mar 31, 5:27 PM EDT | Special Weather Statement | CTP | 48 min |
| Mar 31, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | 36 min |
| Mar 31, 6:33 PM EDT | Severe Thunderstorm Warning | CTP | 57 min |
| Mar 31, 9:36 PM EDT | Special Weather Statement | CTP | 24 min |
| Apr 9, 9:45 PM EDT | Frost Advisory | CTP | 35 hr |
| Apr 14, 12:44 PM EDT | Special Weather Statement | CTP | 46 min |
| Apr 16, 3:26 PM EDT | Freeze Watch | CTP | 20 hr |
| Apr 17, 11:47 AM EDT | Freeze Warning | CTP | 19 hr |
| Apr 18, 4:43 AM EDT | Winter Weather Advisory | CTP | 27 hr |
| Apr 19, 3:59 AM EDT | Freeze Watch | CTP | 10 hr |
| Apr 19, 1:52 PM EDT | Freeze Warning | CTP | 18 hr |
| Apr 26, 2:49 PM EDT | Freeze Watch | CTP | 21 hr |
| Apr 27, 11:35 AM EDT | Freeze Warning | CTP | 20 hr |
| Apr 27, 2:26 PM EDT | Freeze Watch | CTP | 24 hr |
| Apr 28, 1:58 PM EDT | Freeze Warning | CTP | 18 hr |
| May 6, 2:58 AM EDT | Flood Watch | CTP | 34 hr |
| May 7, 3:01 AM EDT | Areal Flood Advisory | CTP | 11 hr |
| May 15, 2:02 PM EDT | Special Weather Statement | CTP | 58 min |
| May 15, 2:47 PM EDT | Severe Thunderstorm Warning | CTP | 43 min |
| May 15, 2:48 PM EDT | Areal Flood Advisory | CTP | 2 hr |
| May 15, 3:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 15, 3:12 PM EDT | Flash Flood Warning | CTP | 93 min |
| May 16, 9:44 AM EDT | Mesoscale Discussion | SPC | 91 min |
| May 16, 9:55 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 20, 10:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| May 20, 11:35 AM EDT | Tornado Watch | SPC | 7 hr |
| May 20, 12:09 PM EDT | Severe Thunderstorm Warning | CTP | 81 min |
| May 20, 1:18 PM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| May 20, 1:41 PM EDT | Special Weather Statement | CTP | 34 min |
| May 20, 1:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 21, 4:00 AM EDT | Dense Fog Advisory | CTP | 4 hr |
| May 22, 12:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 3:48 AM EDT | Flood Watch | CTP | 11 hr |
| Jun 2, 1:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 2, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 11:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 9, 12:47 AM EDT | Special Weather Statement | CTP | 13 min |
| Jun 9, 1:24 AM EDT | Areal Flood Advisory | CTP | 2 hr |
| Jun 9, 1:39 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 14, 3:50 AM EDT | Special Weather Statement | CTP | 55 min |
| Jun 14, 4:07 AM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Jun 14, 4:26 AM EDT | Severe Thunderstorm Warning | CTP | 34 min |
| Jun 16, 1:53 PM EDT | Severe Thunderstorm Warning | CTP | 40 min |
| Jun 16, 2:10 PM EDT | Severe Thunderstorm Warning | CTP | 50 min |
| Jun 16, 2:43 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 16, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | 27 min |
| Jun 22, 3:46 AM EDT | Flood Watch | CTP | 19 hr |
| Jun 22, 1:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 1:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Jun 22, 2:45 PM EDT | Special Weather Statement | CTP | 15 min |
| Jun 22, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 22, 6:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 1, 11:59 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 2:29 PM EDT | Special Weather Statement | CTP | 46 min |
| Jul 1, 3:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 6:11 PM EDT | Special Weather Statement | CTP | 34 min |
| Jul 12, 11:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 1:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 2:37 PM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Jul 12, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | 71 min |
| Jul 12, 4:16 PM EDT | Areal Flood Advisory | CTP | 89 min |
| Jul 18, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 4:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 23, 2:01 PM EDT | Heat Advisory | CTP | 29 hr |
| Jul 23, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 23, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | 51 min |
| Jul 23, 6:05 PM EDT | Special Weather Statement | CTP | 40 min |
| Jul 23, 6:26 PM EDT | Severe Thunderstorm Warning | CTP | 34 min |
| Jul 24, 5:03 PM EDT | Severe Thunderstorm Warning | CTP | 57 min |
| Jul 24, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | 35 min |
| Aug 4, 3:41 PM EDT | Special Weather Statement | CTP | 34 min |
| Aug 21, 2:19 PM EDT | Flash Flood Warning | CTP | 2 hr |
| Aug 22, 2:48 PM EDT | Special Weather Statement | CTP | 42 min |
| Aug 22, 3:10 PM EDT | Areal Flood Advisory | CTP | 2 hr |
| Sep 5, 3:41 AM EDT | Flood Watch | CTP | 32 hr |
| Sep 5, 3:22 PM EDT | Special Weather Statement | CTP | 53 min |
| Sep 7, 9:41 AM EDT | Flood Watch | CTP | 4 hr |
| Sep 7, 10:35 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 25, 10:23 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 25, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 8, 11:40 AM EDT | Frost Advisory | CTP | 20 hr |
| Oct 13, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 18, 1:21 PM EDT | Frost Advisory | CTP | 20 hr |
| Oct 19, 2:27 PM EDT | Freeze Warning | CTP | 19 hr |
| Nov 11, 11:31 PM EST | Special Weather Statement | CTP | 44 min |
| Nov 12, 12:16 AM EST | Special Weather Statement | CTP | 29 min |
| Nov 14, 2:37 PM EST | Winter Weather Advisory | CTP | 36 hr |
| Nov 30, 1:23 PM EST | Special Weather Statement | CTP | 82 min |
| Dec 3, 1:33 PM EST | Special Weather Statement | CTP | 27 min |
| Dec 3, 2:15 PM EST | Special Weather Statement | CTP | 75 min |
| Dec 14, 4:17 AM EST | Winter Weather Advisory | CTP | 56 hr |
| Dec 15, 3:27 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 21, 3:38 AM EST | Winter Weather Advisory | CTP | 37 hr |
| Dec 22, 1:03 PM EST | Wind Chill Advisory | CTP | 60 hr |
| Dec 23, 4:12 AM EST | Winter Weather Advisory | CTP | 15 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 | 20 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 26 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flood Watch | 5 |
| Areal Flood Advisory | 7 |
| Winter | |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 14 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 4 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.