Alert archive / New York / Severe Thunderstorm Watches in 2006
Severe Thunderstorm Watch 656
The Storm Prediction Center issued this severe thunderstorm watch at Jul 29, 2006, 4:08 PM EDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2006, 4:08 PM EDT (20:08 UTC)
- Expired
- Jul 29, 2006, 9:24 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Northwest Hills Planning Region, CT, Berkshire County, MA, Broome County, NY, Columbia County, NY, Dutchess County, NY, Greene County, NY, Sullivan County, NY, Ulster County, NY, Susquehanna County, PA, Wayne County, PA
The radar
The Albany radar (KENX), 79 km from the middle of the area, began a volume at 20:07 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
- 5%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 5:20 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 55 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, 8.1 hours before the alert went out and 102 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
- 309 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min | |
| Jul 29, 11:59 AM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Delaware and 22 more | 91 min |
| Jul 29, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | Albany, Cayuga, Chenango, Clinton, Cortland, Delaware and 33 more | 7 hr |
Nearby
Severe Thunderstorm Watches in New York, 2006Severe Thunderstorm Watches in Pennsylvania, 2006Severe Thunderstorm Watches in Connecticut, 2006Every severe thunderstorm watch in 2006
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.