Alert archive / New York / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 413

June 9, 200418 counties in New York; 9 counties in Vermont

The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2004, 11:20 AM EDT for 18 counties in New York; 9 counties in Vermont. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 9, 2004, 11:20 AM EDT (15:20 UTC)
Expired
Jun 9, 2004, 5:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 27 counties

Cayuga County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Madison County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Seneca County, NY, Warren County, NY, Washington County, NY, Wayne County, NY, Yates County, NY, Addison County, VT, Chittenden County, VT, Franklin County, VT, Grand Isle County, VT, Lamoille County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windsor County, VT

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 9, 11:34 AM EDTSevere Thunderstorm WarningBTVClinton, Franklin56 min
Jun 9, 12:24 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle66 min
Jun 9, 12:52 PM EDTSevere Thunderstorm WarningBTVLamoille, Washington53 min
Jun 9, 2:42 PM EDTSevere Thunderstorm WarningBTVFranklin, St. Lawrence63 min
Jun 9, 3:06 PM EDTSevere Thunderstorm WarningBTVEssex54 min
Jun 9, 3:37 PM EDTSevere Thunderstorm WarningBTVAddison53 min
Jun 9, 3:44 PM EDTSevere Thunderstorm WarningBUFJefferson76 min
Jun 9, 4:14 PM EDTSevere Thunderstorm WarningBTVOrange, Rutland, Windsor61 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, 3.3 hours before the alert went out and 173 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 10:11 AM EDTMesoscale DiscussionSPCClinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 3 more2 hr
Jun 9, 1:00 PM EDTSevere Thunderstorm WatchSPCAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more5 hr
Jun 9, 2:41 PM EDTMesoscale DiscussionSPCCayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more94 min
Jun 9, 3:44 PM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more91 min
Jun 9, 4:21 PM EDTMesoscale DiscussionSPCCayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more54 min
Jun 9, 4:45 PM EDTSevere Thunderstorm WatchSPCAlbany, Broome, Cayuga, Chemung, Chenango, Clinton and 32 more5 hr
Jun 9, 5:27 PM EDTMesoscale DiscussionSPCCattaraugus, Chautauqua63 min
Jun 9, 5:50 PM EDTSevere Thunderstorm WatchSPCAllegany, Cattaraugus, Chautauqua4 hr
Jun 9, 6:28 PM EDTMesoscale DiscussionSPCAlbany, Chenango, Fulton, Hamilton, Herkimer, Madison and 11 more62 min
Jun 9, 6:54 PM EDTMesoscale DiscussionSPCAlbany, Allegany, Cattaraugus, Cayuga, Chemung, Chenango and 25 more96 min
Jun 9, 7:55 PM EDTSevere Thunderstorm WatchSPCBronx, Dutchess, Kings, Nassau, New York, Orange and 7 more5 hr
Jun 9, 1:35 PM EDTSevere Thunderstorm WatchSPCCaledonia, Essex5 hr
Jun 9, 3:20 PM EDTMesoscale DiscussionSPCEssex85 min

Nearby

Severe Thunderstorm Watches in New York, 2004Severe Thunderstorm Watches in Vermont, 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.