Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 705
The Storm Prediction Center issued this severe thunderstorm watch at Aug 31, 2001, 3:15 PM EDT for 4 counties in New Jersey; 21 counties in New York; 24 counties in Pennsylvania. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 31, 2001, 3:15 PM EDT (19:15 UTC)
- Expired
- Aug 31, 2001, 9:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 49 counties
Hunterdon County, NJ, Morris County, NJ, Sussex County, NJ, Warren County, NJ, Albany County, NY, Broome County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Delaware County, NY, Fulton County, NY, Greene County, NY, Madison County, NY, Montgomery County, NY, Onondaga County, NY, Orange County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Ulster County, NY, Berks County, PA, Bradford County, PA, Carbon County, PA, Columbia County, PA, Dauphin County, PA, Juniata County, PA, Lackawanna County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming County, PA, Mifflin County, PA, Monroe County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Perry County, PA, Pike County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA
The radar
The Binghamton radar (KBGM), 75 km from the middle of the area, began a volume at 19:17 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 62 min |
| Aug 31, 4:03 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 72 min |
| Aug 31, 5:05 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 55 min |
| Aug 31, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Snyder, Union | 34 min |
| Aug 31, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 78 min |
| Aug 31, 6:22 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Montgomery | 53 min |
| Aug 31, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 31 min |
| Aug 31, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 24 min |
| Aug 31, 7:23 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery | 37 min |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 7.3 hours before the alert went out and 222 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1164 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 733 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Warren | 6 hr |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2001Severe Thunderstorm Watches in New York, 2001Severe Thunderstorm Watches in New Jersey, 2001Every severe thunderstorm watch in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.