Alert archive / New York / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 347

June 5, 20077 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 5, 2007, 12:09 PM EDT for 7 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 5, 2007, 12:09 PM EDT (16:09 UTC)
Expired: Jun 5, 2007, 7:00 PM EDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 69 counties

Capitol Planning Region, CT, Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Northeastern Connecticut Planning Region, CT, Northwest Hills Planning Region, CT, Southeastern Connecticut Planning Region, CT, Berkshire County, MA, Bristol County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Oxford County, ME, York County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH, Sullivan County, NH, Albany County, NY, Clinton County, NY, Columbia County, NY, Dutchess County, NY, Essex County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Montgomery County, NY, Orange County, NY, Putnam County, NY, Rensselaer County, NY, Rockland County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Westchester County, NY, Kent County, RI, Providence County, RI, 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 Burlington radar (KCXX), 102 km from the middle of the area, began a volume at 16:08 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 5, 12:13 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	47 min
Jun 5, 12:21 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	54 min
Jun 5, 12:28 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga	47 min
Jun 5, 12:33 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Worcester	57 min
Jun 5, 12:37 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	38 min
Jun 5, 12:46 PM EDT	Tornado Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	29 min
Jun 5, 12:52 PM EDT	Severe Thunderstorm Warning	ALY	Albany	38 min
Jun 5, 12:57 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	33 min
Jun 5, 1:07 PM EDT	Severe Thunderstorm Warning	ALY	Bennington	53 min
Jun 5, 1:09 PM EDT	Severe Thunderstorm Warning	ALY	Washington	66 min
Jun 5, 1:11 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga	49 min
Jun 5, 1:13 PM EDT	Flash Flood Warning	OKX	Naugatuck Valley Planning Region	92 min
Jun 5, 1:14 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	46 min
Jun 5, 1:15 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	60 min
Jun 5, 1:16 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	59 min
Jun 5, 1:18 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	42 min
Jun 5, 1:20 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	40 min
Jun 5, 1:25 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Orange, Washington	50 min
Jun 5, 1:41 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	31 min
Jun 5, 1:41 PM EDT	Severe Thunderstorm Warning	BTV	Clinton	46 min
Jun 5, 1:57 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	48 min
Jun 5, 1:59 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	31 min
Jun 5, 2:00 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Worcester	30 min
Jun 5, 2:08 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	52 min
Jun 5, 2:08 PM EDT	Severe Thunderstorm Warning	GYX	Belknap, Strafford	52 min
Jun 5, 2:20 PM EDT	Severe Thunderstorm Warning	BTV	Windsor	40 min
Jun 5, 2:21 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	39 min
Jun 5, 2:24 PM EDT	Tornado Warning	GYX	Strafford	36 min
Jun 5, 2:29 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex	46 min
Jun 5, 2:32 PM EDT	Severe Thunderstorm Warning	GYX	Franklin	43 min
Jun 5, 2:34 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	41 min
Jun 5, 2:42 PM EDT	Severe Thunderstorm Warning	GYX	York	63 min
Jun 5, 2:45 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	60 min
Jun 5, 2:54 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	51 min
Jun 5, 2:59 PM EDT	Severe Thunderstorm Warning	GYX	Strafford	16 min
Jun 5, 3:00 PM EDT	Severe Thunderstorm Warning	GYX	Sullivan	45 min
Jun 5, 3:10 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	65 min
Jun 5, 3:20 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	55 min
Jun 5, 3:27 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	48 min
Jun 5, 3:33 PM EDT	Severe Thunderstorm Warning	GYX	Strafford	42 min
Jun 5, 3:38 PM EDT	Severe Thunderstorm Warning	GYX	Coos	40 min
Jun 5, 3:42 PM EDT	Severe Thunderstorm Warning	GYX	Grafton	33 min
Jun 5, 3:48 PM EDT	Severe Thunderstorm Warning	GYX	York	57 min
Jun 5, 5:06 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	39 min
Jun 5, 5:34 PM EDT	Severe Thunderstorm Warning	GYX	York	36 min
Jun 5, 6:18 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	42 min
Jun 5, 6:40 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	50 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, 4.2 hours before the alert went out and 126 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: 203 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 779 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 5, 11:30 AM EDT	Mesoscale Discussion	SPC		2 hr
Jun 5, 4:17 PM EDT	Mesoscale Discussion	SPC		88 min
Jun 5, 6:38 PM EDT	Mesoscale Discussion	SPC	Androscoggin, Cumberland, Franklin, Kennebec, Knox, Lincoln and 4 more	37 min

Nearby

Severe Thunderstorm Watches in New York, 2007 Severe Thunderstorm Watches in Vermont, 2007 Severe Thunderstorm Watches in Massachusetts, 2007 Every severe thunderstorm watch in 2007

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.