Alert archive / New York / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 271

June 2, 20135 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 2, 2013, 11:33 AM EDT for 5 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jun 2, 2013, 11:33 AM EDT (15:33 UTC)
Expired: Jun 2, 2013, 8:00 PM EDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 55 counties

Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Worcester County, MA, Androscoggin County, ME, Aroostook County, ME, Cumberland County, ME, Franklin County, ME, Kennebec County, ME, Oxford County, ME, Penobscot County, ME, Piscataquis County, ME, Somerset 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, Montgomery County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, 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 Portland,ME radar (KGYX), 121 km from the middle of the area, began a volume at 15:33 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: 2%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 5%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 2, 12:09 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Herkimer, Montgomery	66 min
Jun 2, 12:48 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis, Somerset	42 min
Jun 2, 12:53 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	52 min
Jun 2, 12:57 PM EDT	Severe Thunderstorm Warning	ALY	Greene, Ulster	63 min
Jun 2, 12:57 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	63 min
Jun 2, 1:03 PM EDT	Severe Thunderstorm Warning	BTV	Rutland	57 min
Jun 2, 1:10 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga, Warren, Washington	65 min
Jun 2, 1:32 PM EDT	Severe Thunderstorm Warning	CAR	Piscataquis, Somerset	58 min
Jun 2, 1:33 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Lamoille, Washington	57 min
Jun 2, 1:35 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Washington	55 min
Jun 2, 1:36 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Somerset	39 min
Jun 2, 1:50 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	55 min
Jun 2, 2:00 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Caledonia, Orange, Rutland, Washington, Windsor	90 min
Jun 2, 2:01 PM EDT	Flash Flood Warning	GYX	Franklin, Somerset	3 hr
Jun 2, 2:04 PM EDT	Tornado Warning	CAR	Penobscot, Piscataquis	26 min
Jun 2, 2:06 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Ulster	54 min
Jun 2, 2:08 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	52 min
Jun 2, 2:09 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Somerset	36 min
Jun 2, 2:28 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	62 min
Jun 2, 2:33 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	57 min
Jun 2, 2:34 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis, Somerset	56 min
Jun 2, 2:53 PM EDT	Flash Flood Warning	ALY	Bennington	3 hr
Jun 2, 2:55 PM EDT	Severe Thunderstorm Warning	GYX	Grafton, Merrimack, Sullivan	35 min
Jun 2, 2:58 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	47 min
Jun 2, 3:01 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	59 min
Jun 2, 3:03 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	42 min
Jun 2, 3:09 PM EDT	Severe Thunderstorm Warning	ALY	Bennington, Windham	66 min
Jun 2, 3:10 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	65 min
Jun 2, 3:10 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex, Washington	65 min
Jun 2, 3:11 PM EDT	Tornado Warning	CAR	Aroostook	34 min
Jun 2, 3:11 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	34 min
Jun 2, 3:27 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	48 min
Jun 2, 3:30 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis	60 min
Jun 2, 3:31 PM EDT	Severe Thunderstorm Warning	GYX	Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan	44 min
Jun 2, 3:33 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Saratoga, Washington	57 min
Jun 2, 3:35 PM EDT	Flash Flood Warning	CAR	Aroostook, Penobscot, Piscataquis, Washington	5 hr
Jun 2, 3:39 PM EDT	Severe Thunderstorm Warning	GYX	Coos, Grafton	36 min
Jun 2, 3:43 PM EDT	Flash Flood Warning	CAR	Aroostook	3 hr
Jun 2, 3:46 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	44 min
Jun 2, 3:52 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	38 min
Jun 2, 3:55 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	50 min
Jun 2, 3:57 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire	33 min
Jun 2, 3:59 PM EDT	Severe Thunderstorm Warning	GYX	Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan	31 min
Jun 2, 4:05 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Somerset	40 min
Jun 2, 4:13 PM EDT	Tornado Warning	GYX	Franklin, Somerset	32 min
Jun 2, 4:13 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack, Sullivan	32 min
Jun 2, 4:18 PM EDT	Tornado Warning	CAR	Aroostook	27 min
Jun 2, 4:19 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	41 min
Jun 2, 4:20 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Oxford, York	40 min
Jun 2, 4:22 PM EDT	Flash Flood Warning	GYX	Somerset	3 hr
Jun 2, 4:27 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire	33 min
Jun 2, 4:27 PM EDT	Severe Thunderstorm Warning	GYX	Belknap, Carroll, Grafton, Merrimack, Sullivan	33 min
Jun 2, 4:28 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	62 min
Jun 2, 4:40 PM EDT	Tornado Warning	GYX	Somerset	35 min
Jun 2, 4:45 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	30 min
Jun 2, 4:48 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Franklin, Kennebec, Oxford, Sagadahoc and 1 more	57 min
Jun 2, 4:50 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Somerset	40 min
Jun 2, 4:56 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire, Hillsborough	49 min
Jun 2, 5:00 PM EDT	Flash Flood Warning	GYX	Franklin, Oxford, Somerset	3 hr
Jun 2, 5:04 PM EDT	Flash Flood Warning	BOX	Cheshire	56 min
Jun 2, 5:05 PM EDT	Severe Thunderstorm Warning	GYX	York	40 min
Jun 2, 5:23 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Kennebec, Somerset, Waldo	52 min
Jun 2, 5:35 PM EDT	Flash Flood Warning	CAR	Aroostook, Penobscot, Piscataquis, Somerset	3 hr
Jun 2, 5:45 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis	45 min
Jun 2, 5:49 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis	41 min
Jun 2, 5:51 PM EDT	Flash Flood Warning	CAR	Penobscot, Piscataquis	3 hr
Jun 2, 6:05 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	40 min
Jun 2, 6:13 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	47 min
Jun 2, 6:23 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis	37 min
Jun 2, 6:25 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis	50 min
Jun 2, 6:27 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire, Worcester	48 min
Jun 2, 6:36 PM EDT	Severe Thunderstorm Warning	BOX	Franklin	39 min
Jun 2, 6:46 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis	44 min
Jun 2, 7:08 PM EDT	Flash Flood Warning	CAR	Aroostook	2 hr
Jun 2, 7:11 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	49 min
Jun 2, 7:29 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	46 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

Gray, ME (KGYX), launched 12:00Z, 3.6 hours before the alert went out and 121 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: 462 J/kg
Mixed-layer CIN: -121 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 2, 10:48 AM EDT	Mesoscale Discussion	SPC	Oxford	2 hr
Jun 2, 1:52 PM EDT	Mesoscale Discussion	SPC	Androscoggin, Aroostook, Franklin, Kennebec, Oxford, Penobscot and 2 more	83 min
Jun 2, 4:26 PM EDT	Mesoscale Discussion	SPC	Androscoggin, Aroostook, Cumberland, Franklin, Kennebec, Oxford and 4 more	94 min
Jun 2, 6:53 PM EDT	Mesoscale Discussion	SPC	Androscoggin, Cumberland, Kennebec, Penobscot, Waldo, York	97 min

Nearby

Severe Thunderstorm Watches in New York, 2013 Severe Thunderstorm Watches in Vermont, 2013 Severe Thunderstorm Watches in Maine, 2013 Every severe thunderstorm watch in 2013

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.