Alert archive / Pennsylvania / 1999
Weather alerts in Pennsylvania, January 1999
49 weather alerts in January 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in January 1999. Tap one for its archive.
- Alerts
- 49
- Warnings
- 49
- Watches
- 0
- Advisories
- 0
- Busiest day
- January 24, 199919 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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 3, 3:41 PM EST | Flash Flood Warning | PHI | Chester | 2 hr |
| Jan 9, 1:40 PM EST | Flash Flood Warning | PHI | Berks, Lehigh | 4 hr |
| Jan 18, 10:33 AM EST | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Jan 18, 1:25 PM EST | Flash Flood Warning | CTP | Lancaster | 4 hr |
| Jan 18, 1:33 PM EST | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 77 min |
| Jan 18, 1:33 PM EST | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton | 77 min |
| Jan 18, 1:33 PM EST | Severe Thunderstorm Warning | CTP | Blair | 77 min |
| Jan 18, 2:19 PM EST | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Juniata, Northumberland, Perry, Snyder | 61 min |
| Jan 18, 2:19 PM EST | Severe Thunderstorm Warning | CTP | Adams, York | 61 min |
| Jan 18, 2:19 PM EST | Severe Thunderstorm Warning | CTP | Union | 61 min |
| Jan 18, 2:28 PM EST | Severe Thunderstorm Warning | CTP | Lycoming | 47 min |
| Jan 18, 3:03 PM EST | Flash Flood Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan | 4 hr |
| Jan 18, 3:03 PM EST | Flash Flood Warning | CTP | Lebanon, Schuylkill | 4 hr |
| Jan 18, 3:15 PM EST | Flash Flood Warning | PHI | Berks | 3 hr |
| Jan 18, 4:05 PM EST | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Jan 18, 5:15 PM EST | Flash Flood Warning | BGM | Luzerne | 3 hr |
| Jan 18, 6:20 PM EST | Flash Flood Warning | PHI | Berks, Lehigh, Montgomery, Northampton | 4 hr |
| Jan 18, 7:10 PM EST | Flash Flood Warning | CTP | Lancaster, Lebanon | 5 hr |
| Jan 18, 10:25 PM EST | Flash Flood Warning | CTP | Lancaster, Lebanon | 6 hr |
| Jan 18, 11:10 PM EST | Flash Flood Warning | CTP | York | 5 hr |
| Jan 19, 1:38 PM EST | Flash Flood Warning | CTP | Lycoming | 5 hr |
| Jan 23, 11:50 AM EST | Flash Flood Warning | PBZ | Clarion | 4 hr |
| Jan 23, 12:31 PM EST | Flash Flood Warning | PBZ | Butler | 9 hr |
| Jan 23, 2:30 PM EST | Flash Flood Warning | PBZ | Lawrence | 8 hr |
| Jan 23, 5:25 PM EST | Flash Flood Warning | CTP | Bedford, Blair, Cambria, Clearfield | 6 hr |
| Jan 23, 5:25 PM EST | Flash Flood Warning | CTP | Somerset | 6 hr |
| Jan 23, 5:35 PM EST | Severe Thunderstorm Warning | CTP | Bedford | 50 min |
| Jan 23, 6:34 PM EST | Severe Thunderstorm Warning | CTP | Huntingdon | 46 min |
| Jan 23, 7:32 PM EST | Flash Flood Warning | CTP | Huntingdon | 6 hr |
| Jan 23, 10:40 PM EST | Flash Flood Warning | CTP | Centre | 6 hr |
| Jan 23, 11:01 PM EST | Flash Flood Warning | CTP | Juniata, Mifflin | 6 hr |
| Jan 23, 11:54 PM EST | Flash Flood Warning | PBZ | Lawrence | 8 hr |
| Jan 24, 1:58 AM EST | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Jan 24, 3:58 AM EST | Flash Flood Warning | CTP | Northumberland, Union | 4 hr |
| Jan 24, 4:39 AM EST | Flash Flood Warning | CTP | Centre, Huntingdon, Juniata, Mifflin | 3 hr |
| Jan 24, 7:30 AM EST | Flash Flood Warning | PBZ | Lawrence | 5 hr |
| Jan 24, 7:51 AM EST | Flash Flood Warning | CTP | Centre | 4 hr |
| Jan 24, 7:51 AM EST | Flash Flood Warning | CTP | Juniata | 4 hr |
| Jan 24, 8:00 AM EST | Flash Flood Warning | CTP | Columbia, Northumberland | 4 hr |
| Jan 24, 8:00 AM EST | Flash Flood Warning | CTP | Union | 4 hr |
| Jan 24, 9:23 AM EST | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Huntingdon | 4 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Columbia | 4 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Union | 4 hr |
| Jan 24, 12:55 PM EST | Flash Flood Warning | PBZ | Mercer | 4 hr |
| Jan 24, 1:16 PM EST | Flash Flood Warning | CTP | Lycoming | 3 hr |
| Jan 24, 4:45 PM EST | Flash Flood Warning | PBZ | Mercer | 6 hr |
| Jan 24, 10:10 PM EST | Flash Flood Warning | PBZ | Mercer | 7 hr |
| Jan 25, 4:50 AM EST | Flash Flood Warning | PBZ | Mercer | 5 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 | 9 |
| Flooding | |
| Flash Flood Warning | 40 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Huntingdon County7
- Lancaster County5
- Centre County4
- Juniata County4
- Northumberland County4
- Union County4
- Lycoming County4
- Mercer County4
- Berks County3
- Mifflin County3
- Bedford County3
- Columbia County3
- Lebanon County3
- Lawrence County3
- Lehigh County2
- Blair County2
- York County2
- Chester County1
- Franklin County1
- Fulton County1
- Cumberland County1
- Dauphin County1
- Perry County1
- Snyder County1
- Adams County1
- Montour County1
- Sullivan County1
- Schuylkill County1
- Luzerne County1
- Montgomery County1
- Northampton County1
- Clarion County1
- Butler County1
- Cambria County1
- Clearfield County1
- Somerset County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.