Alert archive / Pennsylvania / Juniata County
Weather alerts in Juniata County, Pennsylvania, 2026
129 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Juniata County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 129
- Warnings
- 39
- Watches
- 30
- Advisories
- 23
- Busiest month
- July25 alerts
- Busiest day
- September 3, 20267 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Juniata County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 23 | 17 | 26% | 11 | 73% | 26 min |
| Flash flood warnings | 4 | 2 | 50% | 1 | 100% | 45 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS State College, PA: tornado warnings | 46 | 12 | 74% | 20 | 75% | 11 min |
| NWS State College, PA: severe thunderstorm warnings | 352 | 258 | 27% | 753 | 86% | 23 min |
| NWS State College, PA: flash flood warnings | 94 | 59 | 37% | 193 | 93% | 70 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 |
|---|---|---|---|
| Dec 31, 11:26 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 1, 1:32 AM EST | Snow Squall Warning | CTP | 58 min |
| Jan 1, 1:52 AM EST | Snow Squall Warning | CTP | 68 min |
| Jan 1, 2:13 AM EST | Snow Squall Warning | CTP | 77 min |
| Jan 19, 11:50 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 22, 2:06 AM EST | Winter Storm Watch | CTP | 32 hr |
| Jan 22, 12:09 PM EST | Cold Weather Advisory | CTP | 46 hr |
| Jan 23, 10:20 AM EST | Winter Storm Warning | CTP | 64 hr |
| Jan 25, 6:01 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 11:55 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 26, 2:14 AM EST | Cold Weather Advisory | CTP | 35 hr |
| Jan 27, 1:16 AM EST | Cold Weather Advisory | CTP | 33 hr |
| Jan 28, 1:20 AM EST | Cold Weather Advisory | CTP | 35 hr |
| Jan 29, 1:12 AM EST | Cold Weather Advisory | CTP | 33 hr |
| Jan 30, 1:08 AM EST | Cold Weather Advisory | CTP | 34 hr |
| Jan 31, 1:32 AM EST | Cold Weather Advisory | CTP | 32 hr |
| Feb 5, 2:02 AM EST | Extreme Cold Watch | CTP | 24 hr |
| Feb 6, 2:03 AM EST | Cold Weather Advisory | CTP | 12 hr |
| Feb 6, 2:03 AM EST | Extreme Cold Warning | CTP | 56 hr |
| Feb 6, 2:03 AM EST | Wind Advisory | CTP | 44 hr |
| Feb 21, 1:43 PM EST | Winter Storm Watch | CTP | 9 hr |
| Feb 21, 1:43 PM EST | Winter Storm Warning | CTP | 67 hr |
| Feb 21, 11:09 PM EST | Winter Weather Advisory | CTP | 35 hr |
| Mar 2, 2:01 AM EST | Winter Weather Advisory | CTP | 38 hr |
| Mar 3, 12:36 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 3, 5:58 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 4, 8:37 PM EST | Dense Fog Advisory | CTP | 10 hr |
| Mar 11, 1:45 PM EDT | Tornado Watch | SPC | 6 hr |
| Mar 11, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Mar 11, 4:39 PM EDT | Severe Thunderstorm Warning | CTP | 36 min |
| Mar 11, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | 23 min |
| Mar 12, 3:00 AM EDT | Wind Advisory | CTP | 59 hr |
| Mar 16, 3:28 AM EDT | Wind Advisory | CTP | 20 hr |
| Mar 16, 10:57 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Mar 16, 11:30 AM EDT | Tornado Watch | SPC | 6 hr |
| Mar 21, 3:30 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Mar 22, 3:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Mar 22, 3:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 22, 6:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 22, 8:34 PM EDT | Severe Thunderstorm Warning | CTP | 26 min |
| Apr 7, 1:47 AM EDT | Freeze Watch | CTP | 32 hr |
| Apr 7, 1:47 AM EDT | Freeze Warning | CTP | 31 hr |
| Apr 8, 9:25 AM EDT | Freeze Warning | CTP | 24 hr |
| Apr 11, 1:20 PM EDT | Frost Advisory | CTP | 19 hr |
| Apr 18, 12:33 PM EDT | Freeze Watch | CTP | 37 hr |
| Apr 20, 1:14 AM EDT | Freeze Warning | CTP | 32 hr |
| May 1, 12:56 PM EDT | Frost Advisory | CTP | 20 hr |
| May 2, 12:14 PM EDT | Freeze Warning | CTP | 21 hr |
| May 11, 12:37 PM EDT | Frost Advisory | CTP | 19 hr |
| May 13, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 6:12 PM EDT | Special Weather Statement | CTP | 33 min |
| May 13, 6:36 PM EDT | Special Weather Statement | CTP | 24 min |
| May 13, 6:58 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| May 20, 12:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 20, 12:39 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 3:27 AM EDT | Dense Fog Advisory | CTP | 5 hr |
| Jun 6, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 6, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 3:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 4:15 PM EDT | Special Weather Statement | CTP | 30 min |
| Jun 6, 4:50 PM EDT | Severe Thunderstorm Warning | CTP | 40 min |
| Jun 10, 1:11 PM EDT | Special Weather Statement | CTP | 34 min |
| Jun 10, 1:23 PM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Jun 11, 3:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 11, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 11, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | 60 min |
| Jun 11, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | 39 min |
| Jun 14, 7:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 8:46 PM EDT | Special Weather Statement | CTP | 29 min |
| Jun 22, 1:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 2:22 AM EDT | Extreme Heat Watch | CTP | 24 hr |
| Jun 30, 2:43 AM EDT | Heat Advisory | CTP | 5 days |
| Jun 30, 2:43 AM EDT | Extreme Heat Warning | CTP | 5 days |
| Jul 3, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 4:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 4, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 5:30 PM EDT | Severe Thunderstorm Warning | CTP | 45 min |
| Jul 4, 6:08 PM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Jul 4, 6:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 4, 7:37 PM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Jul 5, 3:17 AM EDT | Flood Watch | CTP | 52 hr |
| Jul 5, 5:08 PM EDT | Severe Thunderstorm Warning | CTP | 52 min |
| Jul 5, 6:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 6:09 PM EDT | Special Weather Statement | CTP | 51 min |
| Jul 5, 6:22 PM EDT | Flash Flood Warning | CTP | 3 hr |
| Jul 5, 6:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 2:04 AM EDT | Heat Advisory | CTP | 66 hr |
| Jul 18, 9:21 AM EDT | Flood Watch | CTP | 13 hr |
| Jul 18, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 8:43 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Jul 18, 9:26 PM EDT | Special Weather Statement | CTP | 49 min |
| Jul 18, 9:31 PM EDT | Severe Thunderstorm Warning | CTP | 44 min |
| Jul 28, 12:05 AM EDT | Special Weather Statement | CTP | 55 min |
| Jul 28, 2:34 AM EDT | Flood Watch | CTP | 18 hr |
| Jul 28, 12:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 12:51 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 28, 1:59 PM EDT | Special Weather Statement | CTP | 31 min |
| Jul 28, 2:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 10:58 PM EDT | Special Weather Statement | CTP | 32 min |
| Aug 2, 11:56 PM EDT | Flash Flood Warning | CTP | 3 hr |
| Aug 6, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 12:22 PM EDT | Special Weather Statement | CTP | 53 min |
| Aug 7, 12:28 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Aug 7, 1:08 PM EDT | Severe Thunderstorm Warning | CTP | 67 min |
| Aug 10, 12:24 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 20, 8:25 AM EDT | Flood Watch | CTP | 10 hr |
| Aug 21, 12:33 AM EDT | Dense Fog Advisory | CTP | 9 hr |
| Aug 27, 1:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 27, 3:17 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 6:56 PM EDT | Severe Thunderstorm Warning | CTP | 21 min |
| Aug 27, 7:47 PM EDT | Severe Thunderstorm Warning | CTP | 28 min |
| Aug 27, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | 38 min |
| Aug 27, 8:05 PM EDT | Flash Flood Warning | CTP | 3 hr |
| Sep 1, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 2, 3:35 AM EDT | Heat Advisory | CTP | 40 hr |
| Sep 2, 9:23 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 2, 10:20 AM EDT | Severe Thunderstorm Warning | CTP | 40 min |
| Sep 2, 10:48 AM EDT | Severe Thunderstorm Warning | CTP | 42 min |
| Sep 2, 11:02 AM EDT | Severe Thunderstorm Warning | CTP | 43 min |
| Sep 2, 11:13 PM EDT | Severe Thunderstorm Warning | CTP | 47 min |
| Sep 3, 2:07 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Sep 3, 2:12 AM EDT | Flash Flood Warning | CTP | 4 hr |
| Sep 3, 2:42 AM EDT | Flood Watch | CTP | 20 hr |
| Sep 3, 5:46 AM EDT | Areal Flood Warning | CTP | 2 hr |
| Sep 3, 4:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 3, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 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 archive2025
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.