Alert archive / New York / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 460

June 23, 20024 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 23, 2002, 4:45 PM EDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 23, 2002, 4:45 PM EDT (20:45 UTC)
Expired: Jun 23, 2002, 11:00 PM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 28 counties

Franklin County, ME, Oxford County, ME, Coos County, NH, Grafton County, NH, Clinton County, NY, Cortland 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, St. Lawrence County, NY, Warren 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, Rutland County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 52 km from the middle of the area, began a volume at 20:47 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

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

Issued	Product	Office	Counties	Lasted
Jun 23, 5:42 PM EDT	Severe Thunderstorm Warning	BTV	St. Lawrence	48 min
Jun 23, 6:27 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, St. Lawrence	63 min
Jun 23, 6:38 PM EDT	Severe Thunderstorm Warning	BTV	Essex, Orleans	37 min
Jun 23, 6:47 PM EDT	Severe Thunderstorm Warning	BTV	Clinton	43 min
Jun 23, 7:05 PM EDT	Severe Thunderstorm Warning	GYX	Coos	55 min
Jun 23, 7:17 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex, Lamoille, Orleans	43 min
Jun 23, 7:27 PM EDT	Severe Thunderstorm Warning	BTV	Essex, Franklin	63 min
Jun 23, 7:33 PM EDT	Severe Thunderstorm Warning	BTV	St. Lawrence	57 min
Jun 23, 7:48 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	27 min
Jun 23, 7:56 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex, Orange, Washington	49 min
Jun 23, 8:01 PM EDT	Severe Thunderstorm Warning	GYX	Coos	44 min
Jun 23, 8:17 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	28 min
Jun 23, 8:19 PM EDT	Severe Thunderstorm Warning	BTV	Addison	56 min
Jun 23, 8:33 PM EDT	Severe Thunderstorm Warning	GYX	Grafton	27 min
Jun 23, 8:46 PM EDT	Severe Thunderstorm Warning	BTV	Orange, Windsor	59 min
Jun 23, 8:56 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	49 min

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.8 hours before the alert went out and 188 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: 138 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

Nearby

Severe Thunderstorm Watches in New York, 2002 Severe Thunderstorm Watches in Vermont, 2002 Severe Thunderstorm Watches in Maine, 2002 Every severe thunderstorm watch in 2002

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.