Alert archive / Pennsylvania / Sullivan County
Weather alerts in Sullivan County, Pennsylvania, 2015
108 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sullivan County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 108
- Warnings
- 14
- Watches
- 18
- Advisories
- 30
- Busiest month
- June21 alerts
- Busiest day
- July 9, 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.
Sullivan County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 1 | 80% | 3 | 33% | 66 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 6, 3:28 PM EST | Wind Chill Advisory | CTP | 46 hr |
| Jan 7, 10:47 AM EST | Special Weather Statement | CTP | 73 min |
| 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 18, 9:44 PM EST | Special Weather Statement | CTP | 3 hr |
| Jan 23, 3:58 AM EST | Winter Weather Advisory | CTP | 32 hr |
| Jan 24, 5:35 PM EST | Freezing Rain Advisory | CTP | 11 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 5, 3:50 AM EST | Wind Chill Advisory | CTP | 29 hr |
| Feb 8, 4:23 AM EST | Winter Weather Advisory | CTP | 34 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, 3:12 AM EST | Wind Advisory | CTP | 37 hr |
| Feb 14, 3:42 AM EST | Wind Chill Warning | CTP | 54 hr |
| Feb 14, 5:52 PM EST | Special Weather Statement | CTP | 38 min |
| Feb 14, 6:35 PM EST | Special Weather Statement | CTP | 40 min |
| Feb 18, 4:05 AM EST | Wind Chill Warning | CTP | 56 hr |
| Feb 18, 7:57 PM EST | Special Weather Statement | CTP | 33 min |
| Feb 20, 3:10 PM EST | Winter Storm Warning | CTP | 39 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 28, 12:14 PM EST | Winter Weather Advisory | CTP | 43 hr |
| Mar 2, 1:54 PM EST | Winter Weather Advisory | CTP | 41 hr |
| Mar 3, 7:01 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 10, 5:30 PM EDT | Dense Fog Advisory | CTP | 16 hr |
| Mar 10, 9:55 PM EDT | Special Weather Statement | CTP | 3 hr |
| Mar 19, 4:09 AM EDT | Winter Weather Advisory | CTP | 38 hr |
| Mar 26, 4:07 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 |
| Apr 17, 2:39 PM EDT | Fire Weather Watch | CTP | 12 hr |
| Apr 18, 2:54 AM EDT | Red Flag Warning | CTP | 17 hr |
| Apr 20, 3:08 PM EDT | Tornado Watch | SPC | 9 hr |
| Apr 20, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 5:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 8:47 PM EDT | Severe Thunderstorm Warning | CTP | 58 min |
| May 3, 4:43 PM EDT | Fire Weather Watch | CTP | 12 hr |
| May 4, 4:15 AM EDT | Red Flag Warning | CTP | 15 hr |
| May 13, 4:18 AM EDT | Frost Advisory | CTP | 28 hr |
| May 16, 1:35 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 18, 4:30 PM EDT | Special Weather Statement | CTP | 45 min |
| May 22, 2:18 AM EDT | Frost Advisory | CTP | 30 hr |
| May 22, 2:18 AM EDT | Freeze Warning | CTP | 30 hr |
| May 27, 12:18 PM EDT | Special Weather Statement | CTP | 27 min |
| May 27, 12:52 PM EDT | Special Weather Statement | CTP | 23 min |
| May 27, 12:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 5:46 AM EDT | Dense Fog Advisory | CTP | 2 hr |
| Jun 8, 1:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 8, 2:34 PM EDT | Tornado Watch | SPC | 5 hr |
| Jun 8, 2:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 8, 3:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 8, 3:49 PM EDT | Severe Thunderstorm Warning | CTP | 71 min |
| Jun 9, 11:23 AM EDT | Special Weather Statement | CTP | 52 min |
| Jun 11, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 12, 2:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 12, 7:25 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 12, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | 59 min |
| Jun 14, 2:51 PM EDT | Flash Flood Watch | CTP | 14 hr |
| Jun 21, 1:12 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jun 23, 6:08 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 8:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 26, 3:55 AM EDT | Flood Watch | CTP | 44 hr |
| Jun 30, 9:28 AM EDT | Special Weather Statement | CTP | 32 min |
| Jun 30, 12:31 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 7:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 30, 7:57 PM EDT | Special Weather Statement | CTP | 63 min |
| Jun 30, 9:45 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Jul 4, 11:08 AM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 5, 3:57 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Jul 9, 4:50 AM EDT | Flash Flood Watch | CTP | 12 hr |
| Jul 9, 12:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 1:27 PM EDT | Tornado Watch | SPC | 6 hr |
| Jul 9, 3:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 9, 5:14 PM EDT | Special Weather Statement | CTP | 31 min |
| Jul 9, 5:20 PM EDT | Severe Thunderstorm Warning | CTP | 29 min |
| Jul 14, 9:01 PM EDT | Special Weather Statement | CTP | 44 min |
| Jul 14, 11:32 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 18, 6:19 PM EDT | Special Weather Statement | CTP | 26 min |
| Jul 19, 3:06 PM EDT | Special Weather Statement | CTP | 24 min |
| Jul 19, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 3:33 PM EDT | Special Weather Statement | CTP | 42 min |
| Jul 19, 8:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 21, 12:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 21, 3:25 PM EDT | Special Weather Statement | CTP | 50 min |
| Jul 26, 3:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 20, 11:49 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 3:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 1, 8:51 AM EDT | Special Weather Statement | CTP | 114 min |
| Sep 4, 8:48 AM EDT | Special Weather Statement | CTP | 117 min |
| Sep 6, 6:48 AM EDT | Special Weather Statement | CTP | 3 hr |
| Sep 29, 4:19 AM EDT | Flash Flood Watch | CTP | 24 hr |
| Dec 10, 5:35 AM EST | Dense Fog Advisory | CTP | 4 hr |
| Dec 10, 10:03 AM EST | Dense Fog Advisory | CTP | 117 min |
| Dec 22, 9:30 PM EST | Dense Fog Advisory | CTP | 15 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.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 5 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 25 |
| Flooding | |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 4 |
| Wind Chill Watch | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.