Alert archive / Pennsylvania / Jefferson County / 2021
Weather alerts in Jefferson County, Pennsylvania, August 2021
26 weather alerts in August 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 26
- Warnings
- 10
- Watches
- 4
- Advisories
- 2
- Busiest day
- August 12, 202111 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Aug 1, 1:50 PM EDT | Severe Thunderstorm Warning | PBZ | 25 min |
| Aug 1, 1:52 PM EDT | Special Weather Statement | PBZ | 38 min |
| Aug 1, 2:21 PM EDT | Special Weather Statement | PBZ | 39 min |
| Aug 11, 11:50 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 11, 2:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 12, 12:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 12, 1:05 PM EDT | Severe Thunderstorm Warning | PBZ | 25 min |
| Aug 12, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 12, 1:26 PM EDT | Severe Thunderstorm Warning | PBZ | 49 min |
| Aug 12, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 12, 5:20 PM EDT | Severe Thunderstorm Warning | PBZ | 40 min |
| Aug 12, 6:10 PM EDT | Severe Thunderstorm Warning | PBZ | 50 min |
| Aug 12, 6:13 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Aug 12, 6:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 12, 6:38 PM EDT | Severe Thunderstorm Warning | PBZ | 67 min |
| Aug 12, 6:53 PM EDT | Severe Thunderstorm Warning | PBZ | 37 min |
| Aug 13, 4:46 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 13, 7:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 17, 1:28 PM EDT | Flash Flood Watch | PBZ | 27 hr |
| Aug 18, 10:58 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 20, 1:57 AM EDT | Dense Fog Advisory | PBZ | 7 hr |
| Aug 26, 10:31 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Aug 29, 1:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 29, 5:22 PM EDT | Special Weather Statement | PBZ | 38 min |
| Aug 29, 6:22 PM EDT | Areal Flood Advisory | PBZ | 113 min |
| Aug 30, 2:11 AM EDT | Areal Flood Warning | PBZ | 117 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 | 7 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 3 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.