Alert archive / Pennsylvania / Warren County
Weather alerts in Warren County, Pennsylvania, 2018
106 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 106
- Warnings
- 19
- Watches
- 14
- Advisories
- 30
- Busiest month
- January13 alerts
- Busiest day
- October 2, 20187 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 Warren County in 2018 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Warren County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| Severe thunderstorm warnings | 11 | 9 | 18% | 22 | 86% | 38 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 22 | 5 | 77% | 10 | 50% | 7 min |
| NWS State College, PA: severe thunderstorm warnings | 122 | 81 | 34% | 244 | 80% | 30 min |
| NWS State College, PA: flash flood warnings | 57 | 36 | 37% | 89 | 88% | 96 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 1, 4:00 AM EST | Winter Weather Advisory | CTP | 24 hr |
| Jan 3, 3:29 AM EST | Wind Chill Watch | CTP | 24 hr |
| Jan 3, 2:36 PM EST | Winter Weather Advisory | CTP | 64 hr |
| Jan 4, 3:46 AM EST | Wind Chill Warning | CTP | 62 hr |
| Jan 4, 3:46 AM EST | Wind Chill Advisory | CTP | 3 days |
| Jan 7, 2:38 PM EST | Winter Weather Advisory | CTP | 40 hr |
| Jan 10, 3:07 PM EST | Winter Storm Watch | CTP | 38 hr |
| Jan 11, 4:34 AM EST | Flood Watch | CTP | 51 hr |
| Jan 11, 4:16 PM EST | Winter Storm Warning | CTP | 41 hr |
| Jan 12, 5:09 AM EST | Areal Flood Advisory | CTP | 3 hr |
| Jan 12, 4:50 PM EST | Areal Flood Advisory | CTP | 3 hr |
| Jan 12, 7:04 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 29, 4:32 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Feb 1, 4:59 PM EST | Special Weather Statement | CTP | 2 hr |
| Feb 1, 7:15 PM EST | Special Weather Statement | CTP | 90 min |
| Feb 3, 2:44 PM EST | Winter Weather Advisory | CTP | 42 hr |
| Feb 5, 2:40 PM EST | Winter Storm Watch | CTP | 24 hr |
| Feb 6, 2:41 PM EST | Winter Storm Warning | CTP | 27 hr |
| Feb 7, 5:28 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 10, 6:21 AM EST | Special Weather Statement | CTP | 54 min |
| Feb 10, 2:38 PM EST | Winter Weather Advisory | CTP | 19 hr |
| Feb 13, 10:50 PM EST | Special Weather Statement | CTP | 25 min |
| Feb 21, 2:14 PM EST | Winter Weather Advisory | CTP | 46 hr |
| Feb 22, 11:29 AM EST | Flood Watch | CTP | 68 hr |
| Feb 28, 3:10 PM EST | Winter Storm Watch | CTP | 25 hr |
| Mar 1, 3:48 PM EST | Winter Storm Warning | CTP | 23 hr |
| Mar 1, 8:43 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 6, 4:21 PM EST | Winter Weather Advisory | CTP | 22 hr |
| Mar 8, 3:32 AM EST | Winter Weather Advisory | CTP | 39 hr |
| Mar 13, 3:24 AM EDT | Winter Weather Advisory | CTP | 41 hr |
| Mar 27, 5:00 AM EDT | Winter Weather Advisory | CTP | 12 hr |
| Mar 29, 2:28 AM EDT | Dense Fog Advisory | CTP | 8 hr |
| Apr 3, 3:25 PM EDT | Wind Advisory | CTP | 12 hr |
| Apr 4, 3:36 AM EDT | High Wind Warning | CTP | 16 hr |
| Apr 4, 12:33 PM EDT | Special Weather Statement | CTP | 57 min |
| Apr 4, 1:37 PM EDT | Special Weather Statement | CTP | 53 min |
| Apr 16, 1:45 PM EDT | Special Weather Statement | CTP | 45 min |
| Apr 18, 2:51 PM EDT | Winter Weather Advisory | CTP | 13 hr |
| May 2, 4:45 AM EDT | Red Flag Warning | CTP | 16 hr |
| May 4, 1:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 4, 2:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 4, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 3:42 PM EDT | Special Weather Statement | CTP | 48 min |
| May 4, 3:50 PM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| May 4, 4:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 10, 12:04 PM EDT | Special Weather Statement | CTP | 56 min |
| May 12, 2:13 PM EDT | Areal Flood Advisory | CTP | 5 hr |
| May 19, 8:04 PM EDT | Special Weather Statement | CTP | 56 min |
| Jun 13, 3:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 13, 4:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 6:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 13, 7:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 18, 11:43 AM EDT | Special Weather Statement | CTP | 47 min |
| Jun 18, 12:36 PM EDT | Special Weather Statement | CTP | 54 min |
| Jun 18, 6:56 PM EDT | Special Weather Statement | CTP | 64 min |
| Jun 18, 7:51 PM EDT | Severe Thunderstorm Warning | CTP | 54 min |
| Jul 2, 3:53 PM EDT | Special Weather Statement | CTP | 52 min |
| Jul 2, 4:07 PM EDT | Severe Thunderstorm Warning | CTP | 68 min |
| Jul 4, 9:54 AM EDT | Flash Flood Watch | CTP | 10 hr |
| Jul 5, 4:17 AM EDT | Flash Flood Watch | CTP | 30 hr |
| Jul 5, 12:51 PM EDT | Severe Thunderstorm Warning | CTP | 84 min |
| Jul 5, 2:27 PM EDT | Special Weather Statement | CTP | 63 min |
| Jul 16, 7:46 PM EDT | Special Weather Statement | CTP | 59 min |
| Jul 16, 8:17 PM EDT | Severe Thunderstorm Warning | CTP | 73 min |
| Jul 26, 4:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 8:34 PM EDT | Special Weather Statement | CTP | 56 min |
| Aug 4, 2:59 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| Aug 18, 1:13 AM EDT | Special Weather Statement | CTP | 77 min |
| Aug 21, 5:14 PM EDT | Special Weather Statement | CTP | 46 min |
| Aug 21, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | 54 min |
| Aug 21, 6:38 PM EDT | Special Weather Statement | CTP | 37 min |
| Aug 21, 7:24 PM EDT | Severe Thunderstorm Warning | CTP | 66 min |
| Aug 27, 7:34 AM EDT | Special Weather Statement | CTP | 71 min |
| Aug 29, 5:09 PM EDT | Special Weather Statement | CTP | 36 min |
| Aug 29, 5:24 PM EDT | Severe Thunderstorm Warning | CTP | 51 min |
| Aug 29, 6:23 PM EDT | Special Weather Statement | CTP | 37 min |
| Sep 4, 8:15 PM EDT | Special Weather Statement | CTP | 45 min |
| Sep 8, 3:33 AM EDT | Flood Watch | CTP | 64 hr |
| Sep 16, 7:11 AM EDT | Dense Fog Advisory | CTP | 3 hr |
| Sep 21, 4:50 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 21, 5:29 PM EDT | Severe Thunderstorm Warning | CTP | 2 hr |
| Sep 21, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Sep 21, 7:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 23, 2:53 AM EDT | Special Weather Statement | CTP | 3 hr |
| Sep 23, 5:33 AM EDT | Special Weather Statement | CTP | 3 hr |
| Sep 26, 9:42 AM EDT | Special Weather Statement | CTP | 33 min |
| Oct 2, 2:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 2, 2:55 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 2, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | 79 min |
| Oct 2, 3:38 PM EDT | Tornado Warning | CTP | 67 min |
| Oct 2, 4:06 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Oct 2, 4:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 2, 7:24 PM EDT | Mesoscale Discussion | SPC | 81 min |
| Oct 6, 5:27 PM EDT | Special Weather Statement | CTP | 63 min |
| Oct 6, 6:06 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Oct 8, 3:30 AM EDT | Dense Fog Advisory | CTP | 7 hr |
| Oct 13, 1:13 PM EDT | Frost Advisory | CTP | 19 hr |
| Nov 14, 3:40 PM EST | Winter Weather Advisory | CTP | 38 hr |
| Nov 16, 8:47 PM EST | Winter Weather Advisory | CTP | 11 hr |
| Nov 23, 11:02 AM EST | Winter Weather Advisory | CTP | 27 hr |
| Nov 26, 10:20 AM EST | Winter Storm Watch | CTP | 4 hr |
| Nov 26, 1:56 PM EST | Winter Storm Warning | CTP | 52 hr |
| Nov 29, 1:26 PM EST | Winter Weather Advisory | CTP | 24 hr |
| Dec 2, 8:01 PM EST | Special Weather Statement | CTP | 89 min |
| Dec 6, 3:51 AM EST | Winter Weather Advisory | CTP | 24 hr |
| Dec 30, 1:10 AM EST | Winter Weather Advisory | CTP | 6 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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 29 |
| Flooding | |
| Flash Flood Watch | 2 |
| Flood Watch | 3 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 18 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.