Monday, October 7, 2013
Severe Weather Outbreak

A significant wind damage event occurred between 1:00pm and 4:30pm on Monday October 7, 2013 with the passage of a strongly forced, fast moving (forward speed 40-50 mph, with individual cells moving ENE at 50-60 mph), narrow low topped QLCS (quasi-linear convective system) associated with a passing strong surface cold front and strong negatively tiled upper level low pressure trough. The atmosphere in advance of the squall line was characterized by windy, warm, and humid conditions with surface temperatures climbing into the mid 70s and dewpoints climbing into the middle 60s. Occasional breaks of sunshine occurred in an otherwise mostly cloudy sky. Very strong speed and directional wind shear was in place with 40-60 knots of mid level speed shear present and significant turning of the wind from southeasterly at the surface to southwesterly aloft. The degree of shear compensated for meager instability (CAPE: convective available potential energy values of 250 j/kg on average to briefly 500 j/kg in the mid Hudson valley south of Albany) to support pockets of significant wind damage along bowing line segments within the line. Several transient mesocyclone signatures also occurred at the apex of of some of the bowing segments leading to pockets of enhanced wind damage in portions of northwest Fulton County in and around Stratford early in the event and in Columbia, central and southern Berkshire counties towards the end of the event. In all, fifty reports of wind damage were relayed to the Binghamton and Albany National Weather service offices covering the twenty one counties in the CBS6 coverage area, putting this into a major event category.

The meager instability and poor lapse rates in the atmosphere during this event precluded significant vertical development with the convective cells within the line with storm tops only generally averaging 20,000 feet to in a few cases 25,000 feet in the Hudson valley. As a result, very little lightning occurred with the line as insufficient mixing of water and ice in the clouds occurred due to the cloud's shallow nature to allow charge separation to create lightning. Some strikes were observed as the line moved into the Hudson valley where instability was slightly greater allowing for slightly taller storms. Typically in strong convective events in the spring and summer, storm tops will climb to between 40,000 and 55,000 feet.

Rainfall was brief but intense within the line with amounts generally ranging from 1/2" to 1" and locally up to 1.90" all falling in about a thirty to forty five minute time frame. Brief urban and poor drainage flooding was observed in many areas as the QLCS moved through the region.

The following is a series of four Instant Doppler 6 radar screen captures chronicling the fast passage of the squall line across eastern New York and western New England during the afternoon.

Instant Doppler 6: Reflectivity Display 1:34pm Monday October 7, 2013


Instant Doppler 6 Image at 1:34pm October 7, 2013

Instant Doppler 6: Reflectivity Display 2:24pm Monday October 7, 2013

Instant Doppler 6 Image at 2:25pm October 7, 2013 

Instant Doppler 6: Reflectivity Display 3:39pm Monday October 7, 2013

Instant Doppler 6 Image at 3:39pm October 7, 2013 

Instant Doppler 6: Reflectivity Display 4:09pm Monday October 7, 2013

Instant Doppler 6 Image at 4:09pm October 7, 2013 

STORM REPORTS relayed to the National Weather Service October 7, 2013
(Note: These reports do not represent all of the wind damage which likely occurred, only what was reported through reliable sources)

Town County Storm Report Time
Sidney Delaware Wind Damage: Many trees blown down in the village 12:45pm
Unadilla Otsego Wind Damage: Trees blown down on St. Route 7 12:50pm
Gilbertsville Otsego Wind Damage: Trees blown down 1:05pm
Oneonta Otsego Wind Damage: Wires blown down 1:12pm
2 Miles E. Milford Otsego Wind Damage: Tree blown down 1;30pm
Stratford Fulton Significant Wind Damage: Many trees blown down 1:53pm
Caroga Lake Fulton Wind Damage: Trees and wires blown down 2:07pm
5 Miles SE of Jefferson Schoharie Wind Damage: Trees and wires blown down 2:15pm
1 Mile NE of Johnsburg Warren Wind Damage: Trees and power lines down in roadway at State Route 8 and Washer Hill Road 2:45pm
Ballston Lake Saratoga Wind Damage: Trees blown down 2:50pm
Stone Ridge Ulster Wind Damage: Trees and wires blown down 2:52pm
Woodstock Ulster Wind Damage: Tree blown into a house on Pine Grove Street 2:55pm
Greenfield Saratoga Wind Damage: Trees blown down in multiple locations 3:00pm
1 Mile NNE of Saratoga Saratoga Wind Damage: Tree blown down on Union Avenue and Ludlow Street 3:05pm
Tivoli Dutchess Wind Damage: Trees blown down 3:07pm
Canaan Columbia Wind Damage: Trees and wires blown down on County Route 5 and Walker Lane 3:08pm
Clermont Columbia Wind Damage: Trees and wires blown down on buckwheat Bridge Road 3:13pm
3 Miles NW of Glens Falls Warren Wind Damage: Tree down on power lines with subsequent fire 3:14pm
Warrensburg Warren Wind Damage: Trees and power lines blown down 3:15pm
Bethlehem Center Albany Wind Damage: Trees and wires blown down, one pole snapped 3:15pm
Glenmont Albany Wind Damage: Tree blown down on a house on Hartman Road 3:15pm
Delmar Albany Wind Damage: Tree blown down on a house on Kenwood Avenue 3:15pm
1 Mile North of Kenwood Albany Wind Damage: Many trees blown down on Mccarty Avenue, Second Avenue and South Dove Street 3:15pm
1 Mile NNE of Glens Falls Warren Wind Damage: Tree and limbs down on a house on Katherine Street 3:15pm
Greenport Center Columbia Wind Damage: Trees an wires down on Fingar Road 3:17pm
Livingston Columbia Wind Damage: Trees and wires down on Linlithgo Station Road 3:17pm
Catskill Greene Wind Damage: Trees and wires down on Hamburg Road 3:20pm
Latham Albany Wind Damage: Tree down, Estimated wind gusts of 51 mph 3:30pm
Livingston Columbia Wind Damage: Small trees sheared off 3:20pm
Claverack Columbia Wind Damage: Trees and wires blown down in numerous locations 3:22pm
Gallatinville Columbia Wind Damage: Trees and wires blown down on Lange Drive and Weaver Road 3:22pm
East Greenbush Rensselaer Wind Damage: Trees blown down on Phillips Road and Point View Drive 3:25pm
2 Miles SE of Troy Rensselaer Wind Damage: Tree blown down on a car on Mountainview Avenue 3:25pm
Philmont Columbia Wind Damage: Trees and wires blown down on Summit St. 3:27pm
Stuyvesant Columbia Wind Damage: Trees and wires blown down on Sharptown Road 3:27pm
Coxsackie Greene Wind Damage: Large tree limbs blown down 3:30pm
Chatham Columbia Wind Damage: Numerous trees and wires blown down in multiple locations 3:31pm
Ghent Columbia Wind Damage: Trees and wires down in several locations 3:31pm
Ancram Columbia Wind Damage: Trees and wires blown down on Pooles Hill Road 3:31pm
Canaan Columbia Wind Damage: Trees and wires blown down in several locations 3:41pm
Lenox, MA Berkshire Wind Damage: Tree blown down blocking Kemble Street 3:55pm
Stockbridge, MA Berkshire Wind Damage: Tree blown onto a car with a person inside 3:55pm
1 Mile WNW Lenox Station, MA Berkshire Wind Damage: Tree down on the porch of an East Street home 3:55pm
Stearnsville, MA Berkshire Wind Damage: Tree and large limbs blown down across West St. between Fort Hill Avenue and Churchill St. 4:00pm
Richmond, MA Berkshire Wind Damage: Trees down blocking Route 41 4:00pm

This is the Storm Prediction Center (SPC) national severe reports map for October 7, 2013 illustrating the scope of the severe weather outbreak across the Northeast

SPC National Severe Reports Map for October 7, 2013 

Storm Photographs

 
Left: Wind damage in Chatham Center, Columbia County: Photographer WeatherNet 6 Spotter Jim Meehan - Right: Wind damage in Ballston Lake, Saratoga County. Posted to Facebook by the Lorica Family
Wind damage on High Street in Chatham Center, Columbia County
Wind damage in Ballston Lake, Saratoga County
Left: Double rainbow over Crossgates Mall, Guilderland, posted to Facebook by Dan McCarthy- Right: Double rainbow over Niskayuna, shot taken behind the CBS6 Studios on Balltown Road, posted to Facebook by Brittany Vertucci
Rainbow after the storms, Crossgates Mall, Colonie
Niskayuna rainbow, shot behind the CBS6 Studios on Balltown Road
Left: Albany skycam screen capture, spectacular sunset lightning after the rain, 6:15pm - Right: The sky over Johnstown, NY, Fulton county at sunset after the rain, posted to Facebook by Nikki Fox
Spectacular light on the Albany skyline, 6:15pm October 7, 2013
The sky over Johnstown, NY near sunset October 7, 2013
Left: The sky at sunset over Schodack Landing, posted to Facebook by Susan Gentner-Bergin - Right: The sky near sunset over the CBS6 studios in Niskayuna, photograph by Steve LaPointe
The sky over Schodack Landing at sunset after the rain, October 7, 2013
The sky near sunset over the CBS6 studios in Niskayuna October 7, 2013

WeatherNet 6 Rainfall Reports for October 7, 2013
(Note: Rainfall occurred in approximately a 30-45 minute time frame)

Town County Rainfall Report Town County Rainfall Report
Savoy, MA Berkshire 0.50" Pittsfield, MA Berkshire 0.55"
Lanesborough, MA Berkshire 0.80"      
           
Feura Bush Albany 0.85" Latham Albany 1.04" to 1.27"
Colonie Albany 0.78" Guilderland Center Albany 1.02"
Cohoes Albany 1.27" South Berne Albany 0.60"
Voorheesville Albany 0.60" Glenmont Albany 0.75"
           
Livingston Columbia 0.51" Chatham Center Columbia 0.65"
Hudson Columbia 0.50" Ancramdale Columbia 0.99"
Kinderhook Columbia 0.77"      
           
Arkville Delaware 1.20"      
           
Oppenheim Fulton 0.90" Perth Fulton 0.63"
           
Norton Hill Greene
1.00"
Catskill Greene 0.74"
Round Top Greene 1.93" Cairo Greene 1.23" to 1.50"
Elka Park Greene 1.74" Jewett Greene 0.76"
Halcott Greene 0.93" Greenville Greene 0.76"
Kiskatom Greene 0.60"      
           
Wells Hamilton 1.00"      
           
Glen Montgomery 0.53" St. Johnsville Montgomery 0.83"
Fonda Montgomery 0.68" to 0.85" Hessville Montgomery 0.45"
Stone Ridge Montgomery 0.85"      
           
Oneonta Otsego 0.80" to 0.82" Cooperstown Otsego 0.50"
Cherry Valley Otsego 0.60" East Worcester Otsego 0.74"
Worcester Otsego 0.88"      
           
Center Brunswick Rensselaer 0.39" Lansingburgh Rensselaer 1.25"
Castleton Rensselaer 0.97" Speigletown Rensselaer 1.10"
           
Corinth Saratoga 0.88" Charlton Saratoga 0.50"
Lake Desolation Saratoga 0.70" Milton Saratoga 0.66"
Wilton Saratoga 0.67" Mechanicville Saratoga 0.25"
Clifton Park (Oaks) Saratoga 0.98"      
           
Duanesburg Schenectady 0.70"      
           
Jefferson Schoharie 1.00" Sharon Springs Schoharie 0.27"
Charlotteville Schoharie 0.60" Summit Schoharie 0.72" to 0.87"
Middleburgh Schoharie 0.62" Richmondville Schoharie 0.51"
           
Ulster Park Ulster 0.77" West Shokan Ulster 1.54"
Whiteport Ulster 0.71" Phoenicia Ulster 0.82"
Kingston Ulster 0.65" Esopus Ulster 0.55"
           
Queensbury Warren 0.53" Warrensburg Warren 0.85"
Brant Lake Warren 0.90"      
           
Cossayuna Washington 0.63"      
           
Landgrove, VT Bennington 1.55" Woodford, VT Bennington 0.80"
West Rutland, VT Rutland 0.25" Danby, VT Rutland 0.34"