Alert archive / New York / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 503

June 10, 20089 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 10, 2008, 5:47 PM EDT for 9 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 10, 2008, 5:47 PM EDT (21:47 UTC)
Expired
Jun 11, 2008, 1:00 AM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
70 kt
All 99 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, Kent County, DE, New Castle County, DE, Sussex County, DE, Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Worcester County, MA, Caroline County, MD, Cecil County, MD, Dorchester County, MD, Kent County, MD, Queen Anne's County, MD, Somerset County, MD, Talbot County, MD, Wicomico County, MD, Worcester County, MD, Cheshire County, NH, Hillsborough County, NH, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Albany County, NY, Bronx County, NY, Clinton County, NY, Columbia 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, 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, Ulster County, NY, Warren County, NY, Washington County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia 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), 41 km from the middle of the area, began a volume at 21:50 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
80%
One or more gusts of 65 knots or more
40%
Ten or more severe hail reports
80%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 10, 5:47 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe58 min
Jun 10, 5:49 PM EDTSevere Thunderstorm WarningBTVFranklin, St. Lawrence41 min
Jun 10, 5:50 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer55 min
Jun 10, 5:51 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh54 min
Jun 10, 5:59 PM EDTSevere Thunderstorm WarningALYSaratoga, Washington61 min
Jun 10, 6:11 PM EDTSevere Thunderstorm WarningALYGreene, Ulster49 min
Jun 10, 6:20 PM EDTSevere Thunderstorm WarningPHIMonroe40 min
Jun 10, 6:26 PM EDTSevere Thunderstorm WarningALYHamilton, Warren64 min
Jun 10, 6:27 PM EDTSevere Thunderstorm WarningBTVRutland, Windsor48 min
Jun 10, 6:30 PM EDTSevere Thunderstorm WarningBTVClinton, Essex, Franklin, St. Lawrence60 min
Jun 10, 6:42 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh59 min
Jun 10, 6:46 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer59 min
Jun 10, 6:47 PM EDTFlash Flood WarningPHIBerks, Lehigh3 hr
Jun 10, 6:52 PM EDTSevere Thunderstorm WarningALYHerkimer53 min
Jun 10, 6:57 PM EDTSevere Thunderstorm WarningALYColumbia, Greene48 min
Jun 10, 6:57 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton48 min
Jun 10, 6:59 PM EDTSevere Thunderstorm WarningALYWashington35 min
Jun 10, 7:02 PM EDTSevere Thunderstorm WarningPHIChester58 min
Jun 10, 7:12 PM EDTSevere Thunderstorm WarningBTVRutland, Windsor63 min
Jun 10, 7:13 PM EDTSevere Thunderstorm WarningPHISussex, Warren77 min
Jun 10, 7:17 PM EDTSevere Thunderstorm WarningBTVClinton, Essex58 min
Jun 10, 7:19 PM EDTSevere Thunderstorm WarningALYFulton, Herkimer, Montgomery56 min
Jun 10, 7:30 PM EDTSevere Thunderstorm WarningALYHamilton, Saratoga, Warren, Washington60 min
Jun 10, 7:36 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Montgomery54 min
Jun 10, 7:43 PM EDTSevere Thunderstorm WarningALYHerkimer32 min
Jun 10, 7:57 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Franklin, Lamoille, Orleans, Washington63 min
Jun 10, 7:57 PM EDTSevere Thunderstorm WarningBTVAddison, Caledonia, Orange, Washington, Windsor48 min
Jun 10, 7:58 PM EDTSevere Thunderstorm WarningOKXOrange62 min
Jun 10, 7:58 PM EDTSevere Thunderstorm WarningOKXOrange47 min
Jun 10, 8:02 PM EDTSevere Thunderstorm WarningALYGreene, Schoharie47 min
Jun 10, 8:05 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex55 min
Jun 10, 8:11 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset64 min
Jun 10, 8:12 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Saratoga, Schenectady, Warren63 min
Jun 10, 8:16 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden41 min
Jun 10, 8:17 PM EDTSevere Thunderstorm WarningOKXPassaic43 min
Jun 10, 8:18 PM EDTSevere Thunderstorm WarningALYAlbany57 min
Jun 10, 8:29 PM EDTSevere Thunderstorm WarningALYWashington46 min
Jun 10, 8:32 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Rutland, Washington, Windsor43 min
Jun 10, 8:40 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster65 min
Jun 10, 8:44 PM EDTSevere Thunderstorm WarningALYColumbia, Greene46 min
Jun 10, 8:47 PM EDTSevere Thunderstorm WarningALYRensselaer, Washington58 min
Jun 10, 8:53 PM EDTSevere Thunderstorm WarningALYGreene52 min
Jun 10, 8:56 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union34 min
Jun 10, 9:15 PM EDTSevere Thunderstorm WarningALYBerkshire60 min
Jun 10, 9:16 PM EDTSevere Thunderstorm WarningOKXBergen29 min
Jun 10, 9:16 PM EDTSevere Thunderstorm WarningBTVOrange, Windsor49 min
Jun 10, 9:22 PM EDTSevere Thunderstorm WarningALYBennington, Windham53 min
Jun 10, 9:24 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic21 min
Jun 10, 9:25 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region65 min
Jun 10, 9:41 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire64 min
Jun 10, 9:44 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region46 min
Jun 10, 9:57 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire49 min
Jun 10, 9:59 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region61 min
Jun 10, 10:03 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region48 min
Jun 10, 10:10 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region35 min
Jun 10, 10:10 PM EDTSevere Thunderstorm WarningBOXCheshire, Hillsborough65 min
Jun 10, 10:36 PM EDTSevere Thunderstorm WarningBOXCheshire, Hillsborough54 min
Jun 10, 10:42 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester36 min
Jun 10, 10:49 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region42 min
Jun 10, 11:09 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Worcester54 min
Jun 10, 11:33 PM EDTSevere Thunderstorm WarningBOXHillsborough32 min
Jun 10, 11:57 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex, Norfolk, Worcester33 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, 9.8 hours before the alert went out and 57 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 2008-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1481 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 2008-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1481 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
98 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
Jun 10, 10:02 AM EDTTornado WatchSPCNorthwest Hills Planning Region8 hr
Jun 10, 4:52 PM EDTMesoscale DiscussionSPC53 min
Jun 10, 6:51 PM EDTMesoscale DiscussionSPCNew Castle54 min
Jun 10, 1:25 PM EDTMesoscale DiscussionSPCGarrett95 min
Jun 10, 2:27 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 6 more63 min
Jun 10, 2:54 PM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more7 hr
Jun 10, 12:34 PM EDTMesoscale DiscussionSPCMiddlesex, Worcester86 min
Jun 10, 3:49 PM EDTMesoscale DiscussionSPCBerkshire116 min
Jun 10, 1:16 PM EDTSevere Thunderstorm WatchSPCBelknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more11 hr
Jun 10, 5:49 PM EDTMesoscale DiscussionSPCCoos56 min
Jun 10, 9:43 AM EDTMesoscale DiscussionSPCAlbany, Broome, Cayuga, Chemung, Chenango, Clinton and 30 more2 hr

Nearby

Severe Thunderstorm Watches in New York, 2008Severe Thunderstorm Watches in New Jersey, 2008Severe Thunderstorm Watches in Vermont, 2008Every severe thunderstorm watch in 2008

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.