Alert archive / Vermont / Mesoscale Discussions in 2004

Mesoscale Discussion 1151

June 9, 20049 counties in New York; 10 counties in Vermont

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2004, 10:11 AM EDT for 9 counties in New York; 10 counties in Vermont. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 9, 2004, 10:11 AM EDT (14:11 UTC)
Expired: Jun 9, 2004, 12:15 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Clinton County, NY, Essex County, NY, Franklin County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Oswego County, NY, St. Lawrence County, NY, Addison 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, Washington County, VT

The radar

The Burlington radar (KCXX), 52 km from the middle of the area, began a volume at 14:14 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, 2.2 hours before the alert went out and 177 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 192 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 1000 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 11:20 AM EDT	Severe Thunderstorm Watch	SPC	Cayuga, Essex, Franklin, Fulton, Hamilton, Herkimer and 12 more	6 hr
Jun 9, 1:00 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more	5 hr
Jun 9, 2:41 PM EDT	Mesoscale Discussion	SPC	Cayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more	94 min
Jun 9, 3:44 PM EDT	Mesoscale Discussion	SPC	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more	91 min
Jun 9, 4:21 PM EDT	Mesoscale Discussion	SPC	Cayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more	54 min
Jun 9, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	Albany, Broome, Cayuga, Chemung, Chenango, Clinton and 32 more	5 hr
Jun 9, 5:27 PM EDT	Mesoscale Discussion	SPC	Cattaraugus, Chautauqua	63 min
Jun 9, 5:50 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Cattaraugus, Chautauqua	4 hr
Jun 9, 6:28 PM EDT	Mesoscale Discussion	SPC	Albany, Chenango, Fulton, Hamilton, Herkimer, Madison and 11 more	62 min
Jun 9, 6:54 PM EDT	Mesoscale Discussion	SPC	Albany, Allegany, Cattaraugus, Cayuga, Chemung, Chenango and 25 more	96 min
Jun 9, 7:55 PM EDT	Severe Thunderstorm Watch	SPC	Bronx, Dutchess, Kings, Nassau, New York, Orange and 7 more	5 hr
Jun 9, 1:35 PM EDT	Severe Thunderstorm Watch	SPC	Caledonia, Essex	5 hr
Jun 9, 3:20 PM EDT	Mesoscale Discussion	SPC	Essex	85 min

Nearby

Mesoscale Discussions in Vermont, 2004 Mesoscale Discussions in New York, 2004 Every 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.