Alert archive / New York / Mesoscale Discussions in 2011
Mesoscale Discussion 1142
The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2011, 7:45 PM EDT for 5 states. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Jun 8, 2011, 7:45 PM EDT (23:45 UTC)
- Expired
- Jun 8, 2011, 9:15 PM EDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 42 counties
Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Cheshire County, NH, Grafton County, NH, Sullivan County, NH, Albany County, NY, Broome County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Essex County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Madison County, NY, Montgomery County, NY, Orange County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Sullivan County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Susquehanna County, PA, Wayne County, PA, Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Lamoille County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT
The radar
The Albany radar (KENX), 45 km from the middle of the area, began a volume at 23:45 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 11.8 hours before the alert went out and 25 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
- 344 J/kg
- Mixed-layer CIN
- -215 J/kg
- Mixed-layer LCL
- 880 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jun 8, 4:15 PM EDT | Severe Thunderstorm Watch | SPC | Northwest Hills Planning Region | 6 hr |
| Jun 8, 6:45 PM EDT | Severe Thunderstorm Watch | SPC | Capitol Planning Region, Northeastern Connecticut Planning Region | 4 hr |
| Jun 8, 3:46 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 59 min |
| Jun 8, 7:27 PM EDT | Severe Thunderstorm Watch | SPC | Coos | 4 hr |
| Jun 8, 12:22 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Erie, Genesee, Livingston and 11 more | 83 min |
| Jun 8, 1:51 AM EDT | Severe Thunderstorm Watch | SPC | Cattaraugus, Chautauqua, Erie | 3 hr |
Nearby
Mesoscale Discussions in New York, 2011Mesoscale Discussions in Vermont, 2011Mesoscale Discussions in Massachusetts, 2011Every mesoscale discussion in 2011
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.