Alert archive / Pennsylvania / Indiana County
Weather alerts in Indiana County, Pennsylvania, 2016
70 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Indiana County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 70
- Warnings
- 21
- Watches
- 4
- Advisories
- 3
- Busiest month
- July18 alerts
- Busiest day
- July 25, 20169 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Indiana County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 16 | 12 | 25% | 14 | 100% | 23 min |
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pittsburgh, PA: tornado warnings | 13 | 4 | 69% | 6 | 67% | 3 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 155 | 113 | 27% | 345 | 81% | 20 min |
| NWS Pittsburgh, PA: flash flood warnings | 24 | 16 | 33% | 60 | 85% | 49 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 9, 6:48 AM EST | Special Weather Statement | PBZ | 117 min |
| Jan 12, 1:47 PM EST | Special Weather Statement | PBZ | 28 min |
| Jan 17, 6:28 PM EST | Special Weather Statement | PBZ | 47 min |
| Feb 10, 5:57 PM EST | Special Weather Statement | PBZ | 93 min |
| Feb 15, 8:29 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 17, 4:40 PM EST | Special Weather Statement | PBZ | 50 min |
| Feb 17, 5:54 PM EST | Special Weather Statement | PBZ | 51 min |
| Feb 24, 12:33 PM EST | Special Weather Statement | PBZ | 3 hr |
| Mar 2, 10:11 AM EST | Special Weather Statement | PBZ | 34 min |
| Apr 2, 10:43 PM EDT | Special Weather Statement | PBZ | 47 min |
| Apr 26, 1:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 26, 1:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 14, 1:57 PM EDT | Special Weather Statement | PBZ | 33 min |
| May 23, 4:20 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| May 28, 10:41 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| May 29, 3:17 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jun 6, 3:11 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 11, 2:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 11, 4:14 PM EDT | Special Weather Statement | PBZ | 16 min |
| Jun 15, 9:27 PM EDT | Special Weather Statement | PBZ | 48 min |
| Jun 16, 2:36 AM EDT | Special Weather Statement | PBZ | 84 min |
| Jun 16, 10:41 AM EDT | Special Weather Statement | PBZ | 34 min |
| Jun 16, 11:02 AM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jun 16, 1:58 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 1, 5:44 PM EDT | Special Weather Statement | PBZ | 16 min |
| Jul 14, 8:25 PM EDT | Special Weather Statement | PBZ | 35 min |
| Jul 23, 2:34 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 3:54 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 24, 4:22 PM EDT | Severe Thunderstorm Warning | PBZ | 38 min |
| Jul 24, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Jul 24, 4:59 PM EDT | Severe Thunderstorm Warning | PBZ | 46 min |
| Jul 24, 5:08 PM EDT | Severe Thunderstorm Warning | PBZ | 52 min |
| Jul 25, 12:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 25, 12:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Jul 25, 3:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 25, 3:21 PM EDT | Special Weather Statement | PBZ | 24 min |
| Jul 25, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Jul 25, 3:47 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jul 25, 3:59 PM EDT | Special Weather Statement | PBZ | 31 min |
| Jul 25, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 30, 10:21 AM EDT | Areal Flood Warning | PBZ | 114 min |
| Jul 31, 8:52 PM EDT | Special Weather Statement | PBZ | 38 min |
| Aug 10, 6:24 PM EDT | Special Weather Statement | PBZ | 36 min |
| Aug 11, 7:28 PM EDT | Severe Thunderstorm Warning | PBZ | 62 min |
| Aug 11, 7:52 PM EDT | Severe Thunderstorm Warning | PBZ | 53 min |
| Aug 12, 1:45 AM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Aug 12, 5:11 PM EDT | Special Weather Statement | PBZ | 34 min |
| Aug 13, 9:20 PM EDT | Severe Thunderstorm Warning | PBZ | 40 min |
| Aug 16, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | 61 min |
| Aug 16, 6:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 25, 9:02 PM EDT | Severe Thunderstorm Warning | PBZ | 43 min |
| Aug 25, 10:16 PM EDT | Severe Thunderstorm Warning | PBZ | 44 min |
| Aug 28, 8:11 PM EDT | Areal Flood Warning | PBZ | 3 hr |
| Aug 28, 8:21 PM EDT | Special Weather Statement | PBZ | 69 min |
| Aug 28, 9:32 PM EDT | Areal Flood Warning | PBZ | 118 min |
| Sep 7, 3:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 8:45 PM EDT | Special Weather Statement | PBZ | 60 min |
| Sep 17, 4:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 26, 2:34 PM EDT | Special Weather Statement | PBZ | 26 min |
| Sep 26, 3:06 PM EDT | Special Weather Statement | PBZ | 24 min |
| Oct 20, 2:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 20, 3:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 20, 6:07 PM EDT | Special Weather Statement | PBZ | 23 min |
| Oct 20, 6:24 PM EDT | Severe Thunderstorm Warning | PBZ | 36 min |
| Oct 20, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Dec 11, 10:05 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 17, 3:08 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 18, 7:52 AM EST | Areal Flood Warning | PBZ | 6 hr |
| Dec 18, 3:13 PM EST | Areal Flood Warning | PBZ | 10 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 | 16 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 5 |
| Areal Flood Advisory | 3 |
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.