Alert archive / New York / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 907
The Storm Prediction Center issued this severe thunderstorm watch at Nov 25, 2004, 8:55 AM EST for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 25, 2004, 8:55 AM EST (13:55 UTC)
- Expired
- Nov 25, 2004, 2:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 31 counties
Berkshire County, MA, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Albany County, NY, Bronx County, NY, Columbia County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Kings County, NY, Montgomery County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Westchester County, NY, Bennington County, VT
The radar
The Albany radar (KENX), 110 km from the middle of the area, began a volume at 13:57 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 25, 9:50 AM EST | Severe Thunderstorm Warning | ALY | Ulster | 55 min |
| Nov 25, 10:08 AM EST | Severe Thunderstorm Warning | ALY | Saratoga | 52 min |
| Nov 25, 10:28 AM EST | Severe Thunderstorm Warning | ALY | Dutchess | 62 min |
| Nov 25, 10:49 AM EST | Severe Thunderstorm Warning | ALY | Columbia, Rensselaer | 56 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, 1.9 hours before the alert went out and 123 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
- 192 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 25, 10:13 AM EST | Mesoscale Discussion | SPC | 2 hr | |
| Nov 25, 11:00 AM EST | Severe Thunderstorm Watch | SPC | 5 hr | |
| Nov 25, 12:48 PM EST | Mesoscale Discussion | SPC | 117 min | |
| Nov 25, 7:12 AM EST | Mesoscale Discussion | SPC | Bergen, Burlington, Camden, Cumberland, Essex, Gloucester and 10 more | 63 min |
Nearby
Severe Thunderstorm Watches in New York, 2004Severe Thunderstorm Watches in New Jersey, 2004Severe Thunderstorm Watches in Connecticut, 2004Every severe thunderstorm watch in 2004
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.