Alert archive / New York / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 650
The Storm Prediction Center issued this severe thunderstorm watch at Aug 25, 2007, 1:58 PM EDT for 37 counties in New York; 14 counties in Vermont. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2007, 1:58 PM EDT (17:58 UTC)
- Expired
- Aug 25, 2007, 10:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 51 counties
Albany County, NY, Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Clinton County, NY, Cortland County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Seneca County, NY, St. Lawrence County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Warren County, NY, Washington County, NY, Yates County, NY, Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Franklin County, VT, Grand Isle County, VT, Lamoille County, VT, Orange County, VT, Orleans County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT
The radar
The Ft Drum radar (KTYX), 72 km from the middle of the area, began a volume at 17:59 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
46 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 2:01 PM EDT | Severe Thunderstorm Warning | BGM | Oneida, Onondaga | 44 min |
| Aug 25, 2:14 PM EDT | Severe Thunderstorm Warning | BGM | Madison | 31 min |
| Aug 25, 2:17 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 58 min |
| Aug 25, 2:39 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 66 min |
| Aug 25, 2:44 PM EDT | Severe Thunderstorm Warning | BGM | Madison, Oneida, Onondaga | 61 min |
| Aug 25, 3:04 PM EDT | Severe Thunderstorm Warning | ALY | Herkimer | 56 min |
| Aug 25, 3:22 PM EDT | Severe Thunderstorm Warning | ALY | Hamilton | 68 min |
| Aug 25, 3:42 PM EDT | Severe Thunderstorm Warning | ALY | Fulton | 30 min |
| Aug 25, 4:18 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Warren | 57 min |
| Aug 25, 4:24 PM EDT | Severe Thunderstorm Warning | BTV | Addison | 66 min |
| Aug 25, 4:30 PM EDT | Severe Thunderstorm Warning | BTV | Lamoille, Orleans | 60 min |
| Aug 25, 4:35 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 70 min |
| Aug 25, 4:52 PM EDT | Severe Thunderstorm Warning | BTV | Rutland | 53 min |
| Aug 25, 5:15 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Cortland, Tompkins | 45 min |
| Aug 25, 5:23 PM EDT | Severe Thunderstorm Warning | BTV | Windsor | 67 min |
| Aug 25, 5:25 PM EDT | Severe Thunderstorm Warning | BTV | Chittenden, Washington | 65 min |
| Aug 25, 5:28 PM EDT | Severe Thunderstorm Warning | BTV | Caledonia, Essex | 62 min |
| Aug 25, 5:39 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus | 36 min |
| Aug 25, 5:43 PM EDT | Severe Thunderstorm Warning | BTV | Rutland | 44 min |
| Aug 25, 5:56 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 51 min |
| Aug 25, 5:59 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Otsego | 61 min |
| Aug 25, 6:06 PM EDT | Severe Thunderstorm Warning | ALY | Herkimer | 54 min |
| Aug 25, 6:16 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 74 min |
| Aug 25, 6:24 PM EDT | Severe Thunderstorm Warning | BTV | Caledonia, Essex | 33 min |
| Aug 25, 6:27 PM EDT | Severe Thunderstorm Warning | BGM | Steuben | 63 min |
| Aug 25, 6:51 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery | 54 min |
| Aug 25, 6:58 PM EDT | Severe Thunderstorm Warning | BGM | Otsego | 32 min |
| Aug 25, 7:01 PM EDT | Severe Thunderstorm Warning | ALY | Schoharie | 74 min |
| Aug 25, 7:10 PM EDT | Severe Thunderstorm Warning | ALY | Fulton | 46 min |
| Aug 25, 7:11 PM EDT | Severe Thunderstorm Warning | BGM | Chemung, Schuyler | 52 min |
| Aug 25, 7:15 PM EDT | Severe Thunderstorm Warning | ALY | Bennington | 44 min |
| Aug 25, 7:17 PM EDT | Severe Thunderstorm Warning | ALY | Windham | 73 min |
| Aug 25, 7:35 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Schenectady | 70 min |
| Aug 25, 7:39 PM EDT | Severe Thunderstorm Warning | BGM | Tioga, Tompkins | 66 min |
| Aug 25, 8:09 PM EDT | Severe Thunderstorm Warning | BGM | Cortland | 41 min |
| Aug 25, 8:11 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer | 79 min |
| Aug 25, 8:15 PM EDT | Severe Thunderstorm Warning | BGM | Otsego | 60 min |
| Aug 25, 8:19 PM EDT | Severe Thunderstorm Warning | BGM | Broome | 37 min |
| Aug 25, 8:20 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 70 min |
| Aug 25, 8:24 PM EDT | Severe Thunderstorm Warning | ALY | Bennington | 66 min |
| Aug 25, 8:32 PM EDT | Severe Thunderstorm Warning | ALY | Schoharie | 58 min |
| Aug 25, 8:34 PM EDT | Severe Thunderstorm Warning | BGM | Chenango | 56 min |
| Aug 25, 8:36 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery | 69 min |
| Aug 25, 8:41 PM EDT | Severe Thunderstorm Warning | ALY | Windham | 79 min |
| Aug 25, 8:54 PM EDT | Severe Thunderstorm Warning | ALY | Schenectady | 55 min |
| Aug 25, 9:00 PM EDT | Severe Thunderstorm Warning | BTV | Windsor | 60 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.0 hours before the alert went out and 142 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
- 1654 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 12:30 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Clinton, Cortland and 23 more | 90 min |
| Aug 25, 4:26 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Clinton, Cortland and 24 more | 94 min |
| Aug 25, 7:24 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Cortland, Delaware, Essex and 16 more | 96 min |
| Aug 25, 2:36 PM EDT | Mesoscale Discussion | SPC | Essex | 84 min |
Nearby
Severe Thunderstorm Watches in New York, 2007Severe Thunderstorm Watches in Vermont, 2007Every severe thunderstorm watch in 2007
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.