Alert archive / New York / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 405

July 8, 20146 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2014, 6:27 PM EDT for 6 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 8, 2014, 6:27 PM EDT (22:27 UTC)
Expired
Jul 9, 2014, 12:00 AM EDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 61 counties

Capitol Planning Region, CT, Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT, Northwest Hills Planning Region, CT, Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Albany County, NY, Bronx County, NY, Clinton County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Kings County, NY, Montgomery County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Otsego County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, St. Lawrence County, NY, Sullivan County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Westchester County, NY, Pike County, PA, Wayne County, PA, 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 Albany radar (KENX), 75 km from the middle of the area, began a volume at 22:26 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
50%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 8, 6:46 PM EDTSevere Thunderstorm WarningBGMChenango, Cortland, Madison, Oneida, Onondaga, Otsego59 min
Jul 8, 6:48 PM EDTSevere Thunderstorm WarningBTVClinton, Essex, Franklin, St. Lawrence87 min
Jul 8, 6:55 PM EDTTornado WarningALYHamilton, Herkimer65 min
Jul 8, 7:03 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer57 min
Jul 8, 7:11 PM EDTSevere Thunderstorm WarningBGMBroome, Delaware, Sullivan64 min
Jul 8, 7:17 PM EDTTornado WarningBGMBroome, Delaware, Sullivan58 min
Jul 8, 7:21 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Herkimer, Montgomery54 min
Jul 8, 7:22 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Cortland, Otsego53 min
Jul 8, 7:40 PM EDTSevere Thunderstorm WarningBGMSullivan65 min
Jul 8, 7:50 PM EDTTornado WarningALYHamilton, Warren30 min
Jul 8, 7:58 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer32 min
Jul 8, 8:07 PM EDTSevere Thunderstorm WarningBTVEssex53 min
Jul 8, 8:08 PM EDTSevere Thunderstorm WarningALYGreene, Schoharie, Ulster52 min
Jul 8, 8:10 PM EDTSevere Thunderstorm WarningBGMDelaware, Sullivan65 min
Jul 8, 8:14 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Herkimer, Montgomery, Saratoga, Schenectady and 2 more61 min
Jul 8, 8:14 PM EDTSevere Thunderstorm WarningBTVClinton, Essex, Franklin, St. Lawrence61 min
Jul 8, 8:19 PM EDTSevere Thunderstorm WarningALYHamilton, Warren56 min
Jul 8, 8:36 PM EDTSevere Thunderstorm WarningOKXOrange54 min
Jul 8, 8:40 PM EDTSevere Thunderstorm WarningBGMDelaware, Sullivan35 min
Jul 8, 8:41 PM EDTSevere Thunderstorm WarningALYGreene, Ulster64 min
Jul 8, 8:43 PM EDTSevere Thunderstorm WarningBTVClinton, Essex62 min
Jul 8, 8:58 PM EDTSevere Thunderstorm WarningALYAlbany, Greene, Schoharie62 min
Jul 8, 8:58 PM EDTSevere Thunderstorm WarningBTVEssex62 min
Jul 8, 9:08 PM EDTSevere Thunderstorm WarningALYSaratoga, Schenectady, Warren, Washington37 min
Jul 8, 9:17 PM EDTSevere Thunderstorm WarningBTVEssex88 min
Jul 8, 9:26 PM EDTSevere Thunderstorm WarningOKXOrange49 min
Jul 8, 9:31 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union44 min
Jul 8, 9:31 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess59 min
Jul 8, 9:45 PM EDTSevere Thunderstorm WarningBTVEssex60 min
Jul 8, 10:02 PM EDTSevere Thunderstorm WarningBTVAddison, Caledonia, Essex, Lamoille, Orange, Orleans and 3 more88 min
Jul 8, 10:20 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region55 min
Jul 8, 10:25 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region50 min
Jul 8, 10:28 PM EDTSevere Thunderstorm WarningALYBerkshire62 min
Jul 8, 10:48 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region57 min
Jul 8, 10:49 PM EDTSevere Thunderstorm WarningBOXFranklin26 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, 10.5 hours before the alert went out and 67 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 2014-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 315 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 2014-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
315 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
951 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
122 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.

IssuedProductOfficeCountiesLasted
Jul 8, 5:39 PM EDTMesoscale DiscussionSPC66 min
Jul 8, 7:44 PM EDTMesoscale DiscussionSPC61 min
Jul 8, 1:36 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampshire84 min
Jul 8, 4:42 PM EDTMesoscale DiscussionSPCBurlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 3 more63 min
Jul 8, 5:05 PM EDTSevere Thunderstorm WatchSPCAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more5 hr
Jul 8, 11:29 AM EDTMesoscale DiscussionSPCAllegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 18 more91 min
Jul 8, 1:04 PM EDTSevere Thunderstorm WatchSPCAllegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 25 more7 hr
Jul 8, 4:00 PM EDTMesoscale DiscussionSPCAllegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 26 more90 min
Jul 8, 8:58 AM EDTMesoscale DiscussionSPCMercer62 min

Nearby

Severe Thunderstorm Watches in New York, 2014Severe Thunderstorm Watches in Vermont, 2014Severe Thunderstorm Watches in Connecticut, 2014Every severe thunderstorm watch in 2014

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.