Alert archive / Pennsylvania / Tioga County
Weather alerts in Tioga County, Pennsylvania, 2016
73 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Tioga County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 73
- Warnings
- 11
- Watches
- 7
- Advisories
- 25
- Busiest month
- December14 alerts
- Busiest day
- July 25, 20166 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Tioga County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 2 | 50% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 4 | 3 | 25% | 7 | 71% | 14 min |
| NWS State College, PA: severe thunderstorm warnings | 104 | 73 | 30% | 197 | 79% | 29 min |
| NWS State College, PA: flash flood warnings | 9 | 6 | 33% | 9 | 100% | 46 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 8, 11:46 AM EST | Freezing Rain Advisory | CTP | 17 hr |
| Jan 8, 2:39 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 10, 4:43 AM EST | Wind Advisory | CTP | 17 hr |
| Jan 25, 9:30 PM EST | Freezing Rain Advisory | CTP | 12 hr |
| Feb 10, 6:04 PM EST | Special Weather Statement | CTP | 56 min |
| Feb 11, 3:06 PM EST | Wind Chill Watch | CTP | 22 hr |
| Feb 12, 1:11 PM EST | Wind Chill Warning | CTP | 46 hr |
| Feb 14, 2:32 PM EST | Winter Weather Advisory | CTP | 43 hr |
| Feb 15, 8:29 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 16, 10:28 AM EST | Winter Weather Advisory | CTP | 6 hr |
| Feb 16, 1:22 PM EST | Areal Flood Advisory | CTP | 3 hr |
| Feb 23, 3:14 PM EST | Freezing Rain Advisory | CTP | 17 hr |
| Feb 24, 6:03 PM EST | Areal Flood Advisory | CTP | 3 hr |
| Feb 24, 11:18 PM EST | Areal Flood Advisory | CTP | 3 hr |
| Mar 28, 3:42 AM EDT | Wind Advisory | CTP | 18 hr |
| Mar 31, 3:27 PM EDT | Special Weather Statement | CTP | 63 min |
| Apr 1, 4:10 PM EDT | Winter Weather Advisory | CTP | 41 hr |
| Apr 18, 1:04 PM EDT | Fire Weather Watch | CTP | 15 hr |
| Apr 19, 4:22 AM EDT | Red Flag Warning | CTP | 16 hr |
| Apr 26, 6:11 AM EDT | Special Weather Statement | CTP | 49 min |
| May 15, 2:23 AM EDT | Freeze Watch | CTP | 11 hr |
| May 15, 1:00 PM EDT | Freeze Warning | CTP | 19 hr |
| May 23, 2:25 AM EDT | Dense Fog Advisory | CTP | 6 hr |
| May 30, 1:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 6:37 PM EDT | Special Weather Statement | CTP | 38 min |
| Jun 21, 1:43 AM EDT | Special Weather Statement | CTP | 47 min |
| Jun 28, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 28, 7:05 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 13, 4:34 PM EDT | Special Weather Statement | CTP | 56 min |
| Jul 18, 3:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 25, 10:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 25, 12:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 2:53 PM EDT | Special Weather Statement | CTP | 37 min |
| Jul 25, 3:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 25, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | 76 min |
| Jul 25, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 11, 6:15 PM EDT | Special Weather Statement | CTP | 45 min |
| Aug 13, 6:06 PM EDT | Severe Thunderstorm Warning | CTP | 54 min |
| Aug 13, 6:17 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 7:00 PM EDT | Special Weather Statement | CTP | 45 min |
| Aug 13, 8:11 PM EDT | Severe Thunderstorm Warning | CTP | 49 min |
| Aug 13, 8:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 1:21 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 7:19 PM EDT | Special Weather Statement | CTP | 26 min |
| Oct 4, 1:18 AM EDT | Dense Fog Advisory | CTP | 8 hr |
| Oct 6, 2:04 AM EDT | Dense Fog Advisory | CTP | 7 hr |
| Oct 9, 3:46 AM EDT | Frost Advisory | CTP | 29 hr |
| Oct 10, 4:27 AM EDT | Freeze Warning | CTP | 29 hr |
| Oct 20, 2:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 20, 3:39 PM EDT | Flash Flood Watch | CTP | 23 hr |
| Oct 20, 3:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 20, 10:42 PM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Oct 21, 12:14 AM EDT | Areal Flood Warning | CTP | 3 hr |
| Oct 21, 3:30 AM EDT | Flash Flood Warning | CTP | 4 hr |
| Oct 21, 7:24 AM EDT | Areal Flood Warning | CTP | 8 hr |
| Oct 30, 12:09 PM EDT | Special Weather Statement | CTP | 66 min |
| Nov 19, 4:54 AM EST | Wind Advisory | CTP | 62 hr |
| Nov 23, 9:38 AM EST | Winter Weather Advisory | CTP | 23 hr |
| Nov 29, 9:06 PM EST | Dense Fog Advisory | CTP | 10 hr |
| Nov 30, 10:39 PM EST | Special Weather Statement | CTP | 51 min |
| Nov 30, 11:32 PM EST | Special Weather Statement | CTP | 43 min |
| Dec 10, 2:20 PM EST | Winter Weather Advisory | CTP | 43 hr |
| Dec 14, 3:07 PM EST | Wind Chill Advisory | CTP | 42 hr |
| Dec 15, 4:44 AM EST | Special Weather Statement | CTP | 91 min |
| Dec 16, 3:39 AM EST | Winter Weather Advisory | CTP | 44 hr |
| Dec 17, 3:08 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 17, 11:34 PM EST | Special Weather Statement | CTP | 56 min |
| Dec 23, 2:19 PM EST | Winter Weather Advisory | CTP | 18 hr |
| Dec 25, 2:06 PM EST | Freezing Rain Advisory | CTP | 21 hr |
| Dec 26, 12:44 PM EST | Special Weather Statement | CTP | 46 min |
| Dec 30, 10:57 AM EST | Winter Weather Advisory | CTP | 11 hr |
| Dec 30, 12:07 PM EST | Special Weather Statement | CTP | 53 min |
| Dec 30, 1:11 PM EST | Special Weather Statement | CTP | 49 min |
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 | 4 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Freezing Rain Advisory | 4 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 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 archive20152017
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.