Alert archive / Pennsylvania / Tioga County
Weather alerts in Tioga County, Pennsylvania, 2010
134 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 134
- Warnings
- 27
- Watches
- 27
- Advisories
- 21
- Busiest month
- July31 alerts
- Busiest day
- June 24, 201011 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 2 tornado warnings covering Tioga County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 32 minutes after it went out.
Tioga County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 2 | 0% | 1 | 100% | 32 min |
| Severe thunderstorm warnings | 13 | 9 | 31% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 17 | 2 | 88% | 6 | 50% | 25 min |
| NWS State College, PA: severe thunderstorm warnings | 213 | 131 | 38% | 319 | 85% | 27 min |
| NWS State College, PA: flash flood warnings | 22 | 9 | 59% | 24 | 71% | 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 2, 8:51 PM EST | Wind Chill Advisory | CTP | 14 hr |
| Jan 16, 2:48 PM EST | Freezing Rain Advisory | CTP | 14 hr |
| Jan 16, 7:24 PM EST | Winter Weather Advisory | CTP | 32 hr |
| Jan 23, 2:56 PM EST | Flood Watch | CTP | 48 hr |
| Jan 25, 5:38 AM EST | Areal Flood Warning | CTP | 24 hr |
| Jan 25, 9:27 AM EST | Flash Flood Warning | CTP | 3 hr |
| Jan 26, 5:27 AM EST | Areal Flood Warning | CTP | 6 hr |
| Jan 28, 10:20 AM EST | Special Weather Statement | CTP | 55 min |
| Feb 7, 9:31 PM EST | Winter Storm Watch | CTP | 30 hr |
| Feb 9, 3:57 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Feb 15, 4:05 AM EST | Winter Weather Advisory | CTP | 31 hr |
| Feb 22, 7:15 PM EST | Winter Weather Advisory | CTP | 14 hr |
| Feb 23, 8:21 PM EST | Winter Storm Watch | CTP | 29 hr |
| Feb 24, 3:15 PM EST | Winter Storm Warning | CTP | 61 hr |
| Mar 10, 4:24 AM EST | Flood Watch | CTP | 4 days |
| Mar 13, 10:09 AM EST | Wind Advisory | CTP | 12 hr |
| Mar 13, 4:51 PM EST | Areal Flood Advisory | CTP | 7 hr |
| Apr 7, 3:43 AM EDT | Red Flag Warning | CTP | 15 hr |
| Apr 8, 2:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 8, 4:48 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 8, 5:46 PM EDT | Severe Thunderstorm Warning | CTP | 59 min |
| Apr 8, 6:34 PM EDT | Severe Thunderstorm Warning | CTP | 41 min |
| Apr 8, 7:27 PM EDT | Severe Thunderstorm Warning | CTP | 63 min |
| Apr 16, 1:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 16, 5:08 PM EDT | Special Weather Statement | CTP | 52 min |
| Apr 25, 4:37 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 25, 6:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 27, 5:41 AM EDT | Freeze Watch | CTP | 9 hr |
| Apr 27, 2:23 PM EDT | Freeze Warning | CTP | 19 hr |
| Apr 28, 5:34 AM EDT | Freeze Watch | CTP | 9 hr |
| Apr 28, 2:23 PM EDT | Freeze Warning | CTP | 15 hr |
| Apr 28, 2:36 PM EDT | Fire Weather Watch | CTP | 15 hr |
| Apr 29, 5:22 AM EDT | Red Flag Warning | CTP | 15 hr |
| May 4, 10:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| May 5, 11:35 PM EDT | Special Weather Statement | CTP | 55 min |
| May 7, 3:41 PM EDT | Wind Advisory | CTP | 31 hr |
| May 7, 9:31 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 7, 11:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 8, 12:43 AM EDT | Special Weather Statement | CTP | 47 min |
| May 8, 2:36 AM EDT | Mesoscale Discussion | SPC | 54 min |
| May 8, 2:24 PM EDT | Freeze Watch | CTP | 14 hr |
| May 9, 4:11 AM EDT | Freeze Warning | CTP | 28 hr |
| May 9, 2:13 PM EDT | Freeze Watch | CTP | 25 hr |
| May 10, 2:50 PM EDT | Freeze Warning | CTP | 17 hr |
| May 27, 11:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 1, 12:35 AM EDT | Special Weather Statement | CTP | 40 min |
| Jun 6, 3:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 7:05 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 6, 7:51 AM EDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 7:53 AM EDT | Severe Thunderstorm Warning | CTP | 67 min |
| Jun 6, 9:03 AM EDT | Special Weather Statement | CTP | 42 min |
| Jun 6, 9:34 AM EDT | Severe Thunderstorm Warning | CTP | 86 min |
| Jun 12, 2:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 16, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 22, 11:35 AM EDT | Mesoscale Discussion | SPC | 25 min |
| Jun 22, 3:48 PM EDT | Mesoscale Discussion | SPC | 27 min |
| Jun 24, 1:07 AM EDT | Flash Flood Watch | CTP | 9 hr |
| Jun 24, 1:27 AM EDT | Special Weather Statement | CTP | 78 min |
| Jun 24, 1:30 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 24, 2:27 AM EDT | Special Weather Statement | CTP | 33 min |
| Jun 24, 2:38 AM EDT | Special Weather Statement | CTP | 22 min |
| Jun 24, 3:04 AM EDT | Special Weather Statement | CTP | 41 min |
| Jun 24, 9:38 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 24, 9:45 AM EDT | Special Weather Statement | CTP | 45 min |
| Jun 24, 10:19 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 10:59 AM EDT | Special Weather Statement | CTP | 46 min |
| Jun 24, 12:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 9, 3:54 PM EDT | Flash Flood Watch | CTP | 8 hr |
| Jul 9, 4:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 9, 6:25 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 17, 8:05 PM EDT | Special Weather Statement | CTP | 40 min |
| Jul 17, 11:50 PM EDT | Special Weather Statement | CTP | 25 min |
| Jul 19, 1:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 21, 10:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 11:27 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 21, 1:59 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 21, 3:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 21, 7:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 21, 7:35 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 23, 12:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 23, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 9:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 24, 4:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 24, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 6:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 6:42 PM EDT | Severe Thunderstorm Warning | CTP | 63 min |
| Jul 24, 6:48 PM EDT | Tornado Warning | CTP | 27 min |
| Jul 24, 6:48 PM EDT | Tornado Watch | SPC | 4 hr |
| Jul 24, 7:02 PM EDT | Areal Flood Advisory | CTP | 3 hr |
| Jul 24, 7:13 PM EDT | Tornado Warning | CTP | 47 min |
| Jul 24, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | 35 min |
| Jul 24, 7:45 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Jul 25, 9:27 AM EDT | Special Weather Statement | CTP | 63 min |
| Jul 25, 10:28 AM EDT | Special Weather Statement | CTP | 62 min |
| Jul 25, 10:35 AM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Jul 28, 10:13 PM EDT | Special Weather Statement | CTP | 47 min |
| Jul 28, 11:05 PM EDT | Special Weather Statement | CTP | 25 min |
| Jul 29, 1:20 AM EDT | Special Weather Statement | CTP | 55 min |
| Aug 1, 2:40 PM EDT | Areal Flood Advisory | CTP | 4 hr |
| Aug 16, 5:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 8:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 22, 1:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 22, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 22, 3:38 PM EDT | Severe Thunderstorm Warning | CTP | 55 min |
| Sep 23, 3:45 AM EDT | Dense Fog Advisory | CTP | 2 hr |
| Sep 28, 8:00 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 29, 3:16 AM EDT | Flood Watch | CTP | 50 hr |
| Sep 30, 11:38 AM EDT | Areal Flood Advisory | CTP | 16 hr |
| Oct 9, 3:34 AM EDT | Frost Advisory | CTP | 29 hr |
| Oct 11, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | 56 min |
| Oct 11, 3:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Oct 11, 3:23 PM EDT | Special Weather Statement | CTP | 52 min |
| Oct 11, 3:38 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 11, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | 73 min |
| Oct 11, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | 77 min |
| Oct 11, 9:24 PM EDT | Special Weather Statement | CTP | 51 min |
| Nov 16, 2:25 PM EST | Wind Advisory | CTP | 28 hr |
| Nov 16, 10:36 PM EST | Special Weather Statement | CTP | 54 min |
| Nov 16, 11:30 PM EST | Special Weather Statement | CTP | 60 min |
| Nov 17, 12:50 AM EST | Areal Flood Advisory | CTP | 3 hr |
| Nov 24, 3:10 PM EST | Winter Weather Advisory | CTP | 31 hr |
| Nov 25, 5:02 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 29, 1:23 PM EST | Flood Watch | CTP | 49 hr |
| Dec 1, 5:01 AM EST | Areal Flood Advisory | CTP | 6 hr |
| Dec 1, 8:47 AM EST | Areal Flood Warning | CTP | 6 hr |
| Dec 1, 9:52 AM EST | Winter Weather Advisory | CTP | 10 hr |
| Dec 1, 10:52 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 1, 2:30 PM EST | Areal Flood Warning | CTP | 10 hr |
| Dec 6, 1:02 AM EST | Special Weather Statement | CTP | 28 min |
| Dec 6, 2:23 AM EST | Special Weather Statement | CTP | 3 hr |
| Dec 7, 3:35 AM EST | Special Weather Statement | CTP | 3 hr |
| Dec 7, 7:23 AM EST | Special Weather Statement | CTP | 3 hr |
| Dec 8, 11:06 AM EST | Special Weather Statement | CTP | 3 hr |
| Dec 11, 10:40 PM EST | Freezing Rain Advisory | CTP | 10 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 archive20092011
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.