Alert archive / Pennsylvania / Warren County
Weather alerts in Warren County, Pennsylvania, 2015
102 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Warren County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 102
- Warnings
- 16
- Watches
- 19
- Advisories
- 35
- Busiest month
- January18 alerts
- Busiest day
- July 7, 20156 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Warren County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 7 | 13% | 17 | 41% | 28 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 12 | 1 | 92% | 7 | 14% | 11 min |
| NWS State College, PA: severe thunderstorm warnings | 174 | 111 | 36% | 302 | 78% | 27 min |
| NWS State College, PA: flash flood warnings | 17 | 9 | 47% | 15 | 93% | 47 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 2, 3:04 PM EST | Winter Weather Advisory | CTP | 29 hr |
| Jan 3, 9:59 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 5, 8:09 PM EST | Lake Effect Snow Watch | CTP | 19 hr |
| Jan 6, 3:28 PM EST | Wind Chill Advisory | CTP | 46 hr |
| Jan 6, 3:34 PM EST | Lake Effect Snow Advisory | CTP | 30 hr |
| Jan 6, 10:35 PM EST | Lake Effect Snow Warning | CTP | 23 hr |
| Jan 7, 8:46 AM EST | Special Weather Statement | CTP | 29 min |
| Jan 8, 6:05 AM EST | Winter Weather Advisory | CTP | 24 hr |
| Jan 9, 2:52 AM EST | Lake Effect Snow Advisory | CTP | 19 hr |
| Jan 9, 4:23 AM EST | Wind Chill Advisory | CTP | 32 hr |
| Jan 11, 4:49 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Jan 18, 6:48 PM EST | Special Weather Statement | CTP | 3 hr |
| Jan 24, 5:35 PM EST | Freezing Rain Advisory | CTP | 11 hr |
| Jan 25, 5:15 AM EST | Winter Weather Advisory | CTP | 50 hr |
| Jan 28, 2:38 PM EST | Winter Weather Advisory | CTP | 40 hr |
| Jan 30, 3:19 AM EST | Wind Chill Advisory | CTP | 29 hr |
| Jan 30, 3:42 PM EST | Winter Storm Watch | CTP | 23 hr |
| Jan 31, 2:57 PM EST | Winter Storm Warning | CTP | 43 hr |
| Feb 1, 9:52 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 2:48 PM EST | Wind Chill Advisory | CTP | 17 hr |
| Feb 4, 6:08 PM EST | Winter Weather Advisory | CTP | 10 hr |
| Feb 5, 3:50 AM EST | Wind Chill Advisory | CTP | 29 hr |
| Feb 8, 4:23 AM EST | Winter Weather Advisory | CTP | 34 hr |
| Feb 9, 4:09 AM EST | Freezing Rain Advisory | CTP | 18 hr |
| Feb 11, 4:02 AM EST | Wind Chill Watch | CTP | 23 hr |
| Feb 12, 3:10 AM EST | Wind Chill Warning | CTP | 32 hr |
| Feb 13, 3:22 AM EST | Wind Chill Watch | CTP | 24 hr |
| Feb 13, 2:16 PM EST | Winter Weather Advisory | CTP | 41 hr |
| Feb 14, 3:42 AM EST | Wind Chill Warning | CTP | 54 hr |
| Feb 18, 4:05 AM EST | Wind Chill Warning | CTP | 56 hr |
| Feb 20, 3:10 PM EST | Winter Weather Advisory | CTP | 39 hr |
| Feb 22, 3:13 AM EST | Wind Chill Watch | CTP | 10 hr |
| Feb 22, 3:13 AM EST | Wind Chill Advisory | CTP | 54 hr |
| Feb 23, 3:39 AM EST | Wind Chill Warning | CTP | 29 hr |
| Feb 27, 1:23 PM EST | Winter Storm Watch | CTP | 23 hr |
| Feb 28, 12:14 PM EST | Winter Weather Advisory | CTP | 43 hr |
| Mar 2, 1:54 PM EST | Winter Weather Advisory | CTP | 41 hr |
| Mar 10, 5:30 PM EDT | Dense Fog Advisory | CTP | 16 hr |
| Mar 13, 2:41 AM EDT | Flood Watch | CTP | 41 hr |
| Mar 26, 4:00 AM EDT | Special Weather Statement | CTP | 3 hr |
| Mar 30, 4:00 PM EDT | Special Weather Statement | CTP | 3 hr |
| Mar 30, 7:45 PM EDT | Special Weather Statement | CTP | 9 hr |
| Mar 31, 3:11 AM EDT | Winter Weather Advisory | CTP | 17 hr |
| May 11, 7:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 11, 8:18 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 11, 9:16 PM EDT | Special Weather Statement | CTP | 59 min |
| May 11, 9:26 PM EDT | Severe Thunderstorm Warning | CTP | 49 min |
| May 13, 4:18 AM EDT | Frost Advisory | CTP | 28 hr |
| May 21, 3:42 AM EDT | Freeze Watch | CTP | 23 hr |
| May 22, 2:18 AM EDT | Freeze Warning | CTP | 30 hr |
| May 30, 7:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 30, 9:32 PM EDT | Special Weather Statement | CTP | 58 min |
| May 31, 11:22 AM EDT | Special Weather Statement | CTP | 23 min |
| Jun 8, 11:13 AM EDT | Special Weather Statement | CTP | 62 min |
| Jun 12, 2:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 4:02 PM EDT | Special Weather Statement | CTP | 43 min |
| Jun 12, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | 92 min |
| Jun 14, 2:48 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jun 14, 2:51 PM EDT | Flash Flood Watch | CTP | 14 hr |
| Jun 14, 7:35 PM EDT | Special Weather Statement | CTP | 55 min |
| Jun 15, 2:36 PM EDT | Flash Flood Watch | CTP | 18 hr |
| Jun 23, 4:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 23, 5:07 AM EDT | Special Weather Statement | CTP | 53 min |
| Jun 23, 5:30 AM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 23, 5:50 AM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Jun 26, 3:55 AM EDT | Flood Watch | CTP | 44 hr |
| Jun 30, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 7:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 7, 3:57 PM EDT | Special Weather Statement | CTP | 63 min |
| Jul 7, 4:31 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 4:36 PM EDT | Severe Thunderstorm Warning | CTP | 39 min |
| Jul 7, 5:15 PM EDT | Severe Thunderstorm Warning | CTP | 45 min |
| Jul 7, 6:09 PM EDT | Special Weather Statement | CTP | 51 min |
| Jul 7, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Jul 9, 4:50 AM EDT | Flash Flood Watch | CTP | 12 hr |
| Jul 13, 10:07 PM EDT | Special Weather Statement | CTP | 53 min |
| Jul 19, 2:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Jul 19, 6:38 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Jul 19, 6:51 PM EDT | Areal Flood Advisory | CTP | 114 min |
| Jul 19, 8:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 10, 11:28 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Aug 20, 11:49 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 8:51 AM EDT | Special Weather Statement | CTP | 114 min |
| Sep 3, 10:24 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Sep 4, 8:48 AM EDT | Special Weather Statement | CTP | 117 min |
| Sep 4, 6:42 PM EDT | Special Weather Statement | CTP | 33 min |
| Sep 4, 8:07 PM EDT | Special Weather Statement | CTP | 23 min |
| Sep 19, 4:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 29, 4:19 AM EDT | Flash Flood Watch | CTP | 24 hr |
| Sep 29, 6:50 PM EDT | Areal Flood Advisory | CTP | 6 hr |
| Nov 11, 2:44 PM EST | Wind Advisory | CTP | 31 hr |
| Nov 13, 7:55 PM EST | Winter Weather Advisory | CTP | 11 hr |
| Nov 21, 4:20 AM EST | Lake Effect Snow Watch | CTP | 13 hr |
| Dec 5, 7:03 PM EST | Dense Fog Advisory | CTP | 16 hr |
| Dec 7, 8:40 PM EST | Dense Fog Advisory | CTP | 17 hr |
| Dec 17, 3:39 AM EST | Lake Effect Snow Watch | CTP | 24 hr |
| Dec 18, 3:36 AM EST | Lake Effect Snow Warning | CTP | 41 hr |
| Dec 18, 8:58 PM EST | Special Weather Statement | CTP | 62 min |
| Dec 27, 8:01 AM EST | Areal Flood Advisory | CTP | 3 hr |
| Dec 28, 3:44 AM EST | Winter Weather Advisory | CTP | 30 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 archive20142016
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.