Alert archive / Pennsylvania / Warren County
Weather alerts in Warren County, Pennsylvania, 2013
133 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 133
- Warnings
- 31
- Watches
- 20
- Advisories
- 40
- Busiest month
- May25 alerts
- Busiest day
- May 29, 20139 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Warren County in 2013 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 5 minutes after it went out.
Warren County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 2 | 50% | 5 min |
| Severe thunderstorm warnings | 13 | 12 | 8% | 12 | 92% | 35 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 14 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 7 | 2 | 71% | 6 | 33% | 5 min |
| NWS State College, PA: severe thunderstorm warnings | 212 | 149 | 30% | 371 | 87% | 29 min |
| NWS State College, PA: flash flood warnings | 33 | 23 | 30% | 72 | 92% | 72 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 11, 9:49 PM EST | Dense Fog Advisory | CTP | 13 hr |
| Jan 12, 7:22 PM EST | Dense Fog Advisory | CTP | 17 hr |
| Jan 20, 12:35 AM EST | Wind Advisory | CTP | 12 hr |
| Jan 20, 7:03 PM EST | Lake Effect Snow Watch | CTP | 9 hr |
| Jan 21, 4:12 AM EST | Lake Effect Snow Advisory | CTP | 25 hr |
| Jan 21, 4:12 AM EST | Wind Chill Advisory | CTP | 57 hr |
| Jan 22, 5:02 AM EST | Lake Effect Snow Warning | CTP | 39 hr |
| Jan 22, 8:43 PM EST | Wind Chill Advisory | CTP | 16 hr |
| Jan 27, 4:12 AM EST | Winter Weather Advisory | CTP | 39 hr |
| Jan 28, 12:22 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 28, 4:32 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 29, 2:58 PM EST | Flood Watch | CTP | 37 hr |
| Jan 30, 9:32 AM EST | Wind Advisory | CTP | 32 hr |
| Jan 30, 2:30 PM EST | Lake Effect Snow Watch | CTP | 14 hr |
| Jan 31, 4:23 AM EST | Lake Effect Snow Warning | CTP | 40 hr |
| Feb 1, 6:30 PM EST | Winter Weather Advisory | CTP | 30 hr |
| Feb 3, 1:27 PM EST | Lake Effect Snow Advisory | CTP | 30 hr |
| Feb 6, 2:03 PM EST | Winter Storm Watch | CTP | 24 hr |
| Feb 7, 2:11 PM EST | Winter Storm Warning | CTP | 23 hr |
| Feb 7, 2:11 PM EST | Winter Weather Advisory | CTP | 37 hr |
| Feb 10, 1:10 PM EST | Freezing Rain Advisory | CTP | 20 hr |
| Feb 11, 4:06 AM EST | Wind Advisory | CTP | 29 hr |
| Feb 18, 2:45 PM EST | Winter Weather Advisory | CTP | 21 hr |
| Feb 19, 3:36 AM EST | Wind Advisory | CTP | 7 hr |
| Feb 20, 8:50 AM EST | Lake Effect Snow Advisory | CTP | 10 hr |
| Feb 21, 2:53 PM EST | Winter Weather Advisory | CTP | 45 hr |
| Feb 25, 8:02 PM EST | Winter Weather Advisory | CTP | 41 hr |
| Mar 17, 2:47 PM EDT | Winter Weather Advisory | CTP | 41 hr |
| Mar 19, 10:24 PM EDT | Lake Effect Snow Advisory | CTP | 13 hr |
| Mar 20, 10:01 PM EDT | Lake Effect Snow Advisory | CTP | 38 hr |
| Apr 5, 11:14 AM EDT | Red Flag Warning | CTP | 9 hr |
| Apr 10, 1:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 11, 1:37 PM EDT | Flood Watch | CTP | 15 hr |
| Apr 16, 9:32 AM EDT | Special Weather Statement | CTP | 43 min |
| May 10, 2:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| May 10, 3:43 PM EDT | Special Weather Statement | CTP | 62 min |
| May 10, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | 69 min |
| May 10, 5:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| May 10, 5:39 PM EDT | Special Weather Statement | CTP | 36 min |
| May 10, 6:18 PM EDT | Special Weather Statement | CTP | 42 min |
| May 22, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 22, 7:45 PM EDT | Special Weather Statement | CTP | 30 min |
| May 24, 4:41 AM EDT | Freeze Warning | CTP | 27 hr |
| May 25, 3:34 AM EDT | Freeze Watch | CTP | 10 hr |
| May 25, 6:44 AM EDT | Red Flag Warning | CTP | 12 hr |
| May 25, 2:00 PM EDT | Freeze Warning | CTP | 18 hr |
| May 26, 2:15 AM EDT | Freeze Watch | CTP | 11 hr |
| May 26, 4:07 AM EDT | Freeze Warning | CTP | 28 hr |
| May 26, 1:34 PM EDT | Frost Advisory | CTP | 18 hr |
| May 28, 7:50 PM EDT | Special Weather Statement | CTP | 55 min |
| May 28, 8:07 PM EDT | Severe Thunderstorm Warning | CTP | 53 min |
| May 28, 8:19 PM EDT | Tornado Warning | CTP | 56 min |
| May 28, 8:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| May 28, 9:14 PM EDT | Severe Thunderstorm Warning | CTP | 61 min |
| May 28, 9:55 PM EDT | Tornado Warning | CTP | 35 min |
| May 28, 10:15 PM EDT | Severe Thunderstorm Warning | CTP | 75 min |
| May 28, 10:51 PM EDT | Flash Flood Warning | CTP | 6 hr |
| May 29, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 5:39 PM EDT | Special Weather Statement | CTP | 36 min |
| Jun 2, 2:38 AM EDT | Special Weather Statement | CTP | 52 min |
| Jun 12, 12:41 PM EDT | Flood Watch | CTP | 27 hr |
| Jun 13, 1:59 AM EDT | Special Weather Statement | CTP | 46 min |
| Jun 13, 3:58 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 4:20 AM EDT | Special Weather Statement | CTP | 85 min |
| Jun 13, 5:48 AM EDT | Areal Flood Advisory | CTP | 117 min |
| Jun 25, 12:22 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 5:25 PM EDT | Severe Thunderstorm Warning | CTP | 65 min |
| Jun 25, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | 61 min |
| Jun 27, 9:45 AM EDT | Flash Flood Watch | CTP | 12 hr |
| Jun 28, 11:40 AM EDT | Special Weather Statement | CTP | 50 min |
| Jun 28, 12:12 PM EDT | Special Weather Statement | CTP | 33 min |
| Jun 28, 1:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 30, 2:01 PM EDT | Flash Flood Watch | CTP | 56 hr |
| Jun 30, 3:42 PM EDT | Special Weather Statement | CTP | 33 min |
| Jun 30, 3:47 PM EDT | Special Weather Statement | CTP | 28 min |
| Jul 1, 10:54 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 1, 12:58 PM EDT | Areal Flood Warning | CTP | 6 hr |
| Jul 10, 3:45 PM EDT | Mesoscale Discussion | SPC | 30 min |
| Jul 10, 3:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 10, 4:11 PM EDT | Severe Thunderstorm Warning | CTP | 64 min |
| Jul 10, 5:02 PM EDT | Severe Thunderstorm Warning | CTP | 58 min |
| Jul 19, 2:25 PM EDT | Special Weather Statement | CTP | 35 min |
| Jul 19, 3:12 PM EDT | Special Weather Statement | CTP | 48 min |
| Jul 20, 5:36 AM EDT | Special Weather Statement | CTP | 39 min |
| Jul 20, 6:49 PM EDT | Special Weather Statement | CTP | 56 min |
| Jul 23, 4:44 PM EDT | Severe Thunderstorm Warning | CTP | 46 min |
| Jul 23, 5:09 PM EDT | Special Weather Statement | CTP | 66 min |
| Jul 23, 5:39 PM EDT | Severe Thunderstorm Warning | CTP | 66 min |
| Aug 8, 3:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 13, 1:52 AM EDT | Special Weather Statement | CTP | 53 min |
| Aug 13, 2:19 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Aug 13, 2:34 AM EDT | Severe Thunderstorm Warning | CTP | 56 min |
| Aug 20, 3:48 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Aug 22, 2:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 6:34 PM EDT | Special Weather Statement | CTP | 41 min |
| Sep 2, 12:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 2, 1:07 PM EDT | Severe Thunderstorm Warning | CTP | 83 min |
| Sep 2, 2:19 PM EDT | Severe Thunderstorm Warning | CTP | 56 min |
| Sep 2, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 11, 11:42 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Sep 11, 12:33 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 11, 2:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Sep 16, 11:30 AM EDT | Frost Advisory | CTP | 21 hr |
| Sep 17, 2:11 PM EDT | Frost Advisory | CTP | 18 hr |
| Sep 23, 4:50 AM EDT | Frost Advisory | CTP | 28 hr |
| Sep 24, 2:08 PM EDT | Frost Advisory | CTP | 20 hr |
| Oct 24, 2:22 PM EDT | Lake Effect Snow Advisory | CTP | 20 hr |
| Oct 31, 9:48 PM EDT | Wind Advisory | CTP | 16 hr |
| Nov 1, 3:00 AM EDT | Special Weather Statement | CTP | 45 min |
| Nov 8, 7:38 AM EST | Lake Effect Snow Advisory | CTP | 8 hr |
| Nov 17, 12:07 PM EST | Wind Advisory | CTP | 19 hr |
| Nov 17, 7:36 PM EST | Mesoscale Discussion | SPC | 54 min |
| Nov 17, 8:23 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Nov 17, 10:07 PM EST | Special Weather Statement | CTP | 38 min |
| Nov 17, 10:24 PM EST | Mesoscale Discussion | SPC | 66 min |
| Nov 22, 3:59 PM EST | Lake Effect Snow Watch | CTP | 19 hr |
| Nov 23, 10:55 AM EST | Lake Effect Snow Warning | CTP | 35 hr |
| Nov 25, 3:33 AM EST | Winter Storm Watch | CTP | 12 hr |
| Nov 25, 3:20 PM EST | Winter Storm Warning | CTP | 61 hr |
| Nov 26, 6:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 3, 7:13 AM EST | Special Weather Statement | CTP | 92 min |
| Dec 5, 12:11 PM EST | Winter Weather Advisory | CTP | 37 hr |
| Dec 6, 10:26 AM EST | Winter Storm Warning | CTP | 14 hr |
| Dec 7, 6:13 PM EST | Winter Weather Advisory | CTP | 40 hr |
| Dec 11, 1:26 AM EST | Lake Effect Snow Advisory | CTP | 27 hr |
| Dec 12, 9:08 PM EST | Winter Storm Watch | CTP | 14 hr |
| Dec 13, 11:32 AM EST | Winter Storm Warning | CTP | 40 hr |
| Dec 15, 4:13 AM EST | Lake Effect Snow Advisory | CTP | 30 hr |
| Dec 20, 4:32 AM EST | Flood Watch | CTP | 56 hr |
| Dec 21, 5:47 AM EST | River Flood Warning | CTP | 28 hr |
| Dec 24, 4:10 AM EST | Winter Weather Advisory | CTP | 18 hr |
| Dec 24, 8:55 AM EST | River Flood Warning | CTP | 41 hr |
| Dec 31, 4:11 AM EST | Lake Effect Snow Advisory | CTP | 20 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 archive20122014
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.