Alert archive / New York / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 669
The Storm Prediction Center issued this severe thunderstorm watch at Sep 3, 2002, 12:20 PM EDT for 16 counties in New York; 8 counties in Pennsylvania. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 3, 2002, 12:20 PM EDT (16:20 UTC)
- Expired
- Sep 3, 2002, 6:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 24 counties
Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Seneca County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Crawford County, PA, Erie County, PA, Forest County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Venango County, PA, Warren County, PA
The radar
The Buffalo radar (KBUF), 42 km from the middle of the area, began a volume at 16:19 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 2:18 PM EDT | Severe Thunderstorm Warning | BUF | Wyoming | 27 min |
| Sep 3, 3:08 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Wyoming | 67 min |
| Sep 3, 3:11 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 64 min |
| Sep 3, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 54 min |
| Sep 3, 4:17 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 58 min |
| Sep 3, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 57 min |
| Sep 3, 4:19 PM EDT | Severe Thunderstorm Warning | BUF | Ontario | 26 min |
| Sep 3, 4:41 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 64 min |
| Sep 3, 4:50 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 40 min |
| Sep 3, 5:47 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 58 min |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 4.3 hours before the alert went out and 39 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
- 574 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1161 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.6
Nearby
Severe Thunderstorm Watches in New York, 2002Severe Thunderstorm Watches in Pennsylvania, 2002Every severe thunderstorm watch in 2002
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.