Alert archive / New York / Mesoscale Discussions in 2004
Mesoscale Discussion 1965
The Storm Prediction Center issued this mesoscale discussion at Aug 11, 2004, 7:00 PM EDT for 6 states. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2004, 7:00 PM EDT (23:00 UTC)
- Expired
- Aug 11, 2004, 8:30 PM EDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 82 counties
Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Merrimack County, NH, Sullivan County, NH, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Albany County, NY, Bronx County, NY, Clinton County, NY, Columbia County, NY, Dutchess County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton 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, Sullivan County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA, Pike County, PA, York County, PA, 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 Albany radar (KENX), 82 km from the middle of the area, began a volume at 23:02 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.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 11.0 hours before the alert went out and 104 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
- 492 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 771 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 11:59 AM EDT | Mesoscale Discussion | SPC | 91 min | |
| Aug 11, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr | |
| Aug 11, 4:18 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Nantucket, Norfolk and 2 more | 87 min |
| Aug 11, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | Atlantic, Cape May, Cumberland, Gloucester, Salem | 5 hr |
| Aug 11, 7:26 PM EDT | Mesoscale Discussion | SPC | Atlantic, Cape May, Cumberland, Salem | 64 min |
Nearby
Mesoscale Discussions in New York, 2004Mesoscale Discussions in New Jersey, 2004Mesoscale Discussions in Pennsylvania, 2004Every mesoscale discussion 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.