Alert archive / New York / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 263
The Storm Prediction Center issued this severe thunderstorm watch at May 23, 2004, 4:40 PM EDT for 8 counties in New Jersey; 20 counties in New York; 16 counties in Pennsylvania. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 23, 2004, 4:40 PM EDT (20:40 UTC)
- Expired
- May 23, 2004, 10:00 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Morris County, NJ, Passaic County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Broome County, NY, Chemung County, NY, Delaware County, NY, Dutchess County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Schuyler County, NY, Steuben County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Ulster County, NY, Westchester County, NY, Bradford County, PA, Carbon County, PA, Clinton County, PA, Columbia County, PA, Lackawanna County, PA, Luzerne County, PA, Lycoming County, PA, Monroe County, PA, Montour County, PA, Northampton County, PA, Pike County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Wayne County, PA, Wyoming County, PA
The radar
The Binghamton radar (KBGM), 44 km from the middle of the area, began a volume at 20:40 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
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 4:40 PM EDT | Severe Thunderstorm Warning | OKX | Putnam | 35 min |
| May 23, 6:22 PM EDT | Severe Thunderstorm Warning | BGM | Broome | 53 min |
| May 23, 6:24 PM EDT | Severe Thunderstorm Warning | BGM | Tioga | 36 min |
| May 23, 6:41 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 64 min |
| May 23, 7:28 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 47 min |
| May 23, 7:46 PM EDT | Severe Thunderstorm Warning | ALY | Ulster | 59 min |
| May 23, 7:58 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 62 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, 8.7 hours before the alert went out and 201 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 601 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 6:45 PM EDT | Mesoscale Discussion | SPC | 90 min | |
| May 22, 8:18 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 13 more | 117 min |
| May 22, 10:50 PM EDT | Tornado Watch | SPC | Broome, Chemung, Chenango, Cortland, Delaware, Madison and 9 more | 4 hr |
| May 23, 12:04 AM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Chenango, Cortland, Delaware, Madison and 9 more | 56 min |
| May 23, 3:27 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more | 2 hr |
Nearby
Severe Thunderstorm Watches in New York, 2004Severe Thunderstorm Watches in Pennsylvania, 2004Severe Thunderstorm Watches in New Jersey, 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.