Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 720

August 14, 20057 states

The Storm Prediction Center issued this severe thunderstorm watch at Aug 14, 2005, 1:15 PM EDT for 7 states. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Aug 14, 2005, 1:15 PM EDT (17:15 UTC)
Expired
Aug 14, 2005, 10:00 PM EDT
In force
9 hr
Issued by
the Storm Prediction Center
All 111 counties

Barnstable County, MA, Berkshire County, MA, Bristol County, MA, Dukes County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH, Rockingham County, NH, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Albany County, NY, Allegany County, NY, Bronx County, NY, Broome County, NY, Chemung County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Kings 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, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Steuben County, NY, Suffolk County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Ulster County, NY, Westchester County, NY, Adams County, PA, Bedford County, PA, Berks County, PA, Blair County, PA, Bradford County, PA, Bucks County, PA, Cambria County, PA, Cameron County, PA, Carbon County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lackawanna County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Monroe County, PA, Montgomery County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Perry County, PA, Pike County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA, York County, PA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI, Windham County, VT

The radar

The Albany radar (KENX), 89 km from the middle of the area, began a volume at 17:17 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Aug 14, 1:44 PM EDTSevere Thunderstorm WarningBGMPike51 min
Aug 14, 2:08 PM EDTSevere Thunderstorm WarningALYAlbany, Rensselaer68 min
Aug 14, 2:09 PM EDTSevere Thunderstorm WarningOKXWestchester70 min
Aug 14, 2:18 PM EDTFlash Flood WarningOKXOrange3 hr
Aug 14, 2:23 PM EDTSevere Thunderstorm WarningPHISussex35 min
Aug 14, 2:24 PM EDTSevere Thunderstorm WarningBOXHampden51 min
Aug 14, 2:29 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex23 min
Aug 14, 2:35 PM EDTSevere Thunderstorm WarningBOXWorcester40 min
Aug 14, 3:03 PM EDTSevere Thunderstorm WarningCTPSullivan72 min
Aug 14, 3:05 PM EDTSevere Thunderstorm WarningALYBerkshire33 min
Aug 14, 3:14 PM EDTSevere Thunderstorm WarningBOXNorfolk, Plymouth46 min
Aug 14, 3:22 PM EDTSevere Thunderstorm WarningBOXFranklin53 min
Aug 14, 3:22 PM EDTSevere Thunderstorm WarningBGMBradford, Susquehanna27 min
Aug 14, 3:24 PM EDTSevere Thunderstorm WarningPHISussex, Warren51 min
Aug 14, 3:26 PM EDTFlash Flood WarningBOXNorfolk, Plymouth2 hr
Aug 14, 3:41 PM EDTSevere Thunderstorm WarningPHIMonroe34 min
Aug 14, 3:59 PM EDTSevere Thunderstorm WarningBOXCheshire46 min
Aug 14, 4:08 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire37 min
Aug 14, 4:09 PM EDTSevere Thunderstorm WarningALYColumbia66 min
Aug 14, 4:22 PM EDTSevere Thunderstorm WarningBOXWorcester53 min
Aug 14, 4:32 PM EDTSevere Thunderstorm WarningPHISussex28 min
Aug 14, 4:33 PM EDTSevere Thunderstorm WarningALYBerkshire57 min
Aug 14, 4:33 PM EDTSevere Thunderstorm WarningOKXQueens42 min
Aug 14, 4:37 PM EDTSevere Thunderstorm WarningBGMBroome, Tioga38 min
Aug 14, 4:39 PM EDTSevere Thunderstorm WarningBOXPlymouth51 min
Aug 14, 4:41 PM EDTSevere Thunderstorm WarningPHIWarren21 min
Aug 14, 4:45 PM EDTSevere Thunderstorm WarningCTPCumberland60 min
Aug 14, 5:05 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire55 min
Aug 14, 5:06 PM EDTSevere Thunderstorm WarningPHISussex39 min
Aug 14, 5:15 PM EDTSevere Thunderstorm WarningBOXWorcester45 min
Aug 14, 5:15 PM EDTSevere Thunderstorm WarningCTPLebanon45 min
Aug 14, 5:23 PM EDTSevere Thunderstorm WarningBGMDelaware46 min
Aug 14, 5:27 PM EDTSevere Thunderstorm WarningALYBerkshire37 min
Aug 14, 5:27 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic50 min
Aug 14, 5:33 PM EDTFlash Flood WarningBOXPlymouth87 min
Aug 14, 5:39 PM EDTFlash Flood WarningPHISussex3 hr
Aug 14, 5:55 PM EDTSevere Thunderstorm WarningBOXMiddlesex50 min
Aug 14, 6:11 PM EDTSevere Thunderstorm WarningBGMSullivan68 min
Aug 14, 6:19 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire26 min
Aug 14, 6:21 PM EDTFlash Flood WarningOKXBergen3 hr
Aug 14, 6:29 PM EDTSevere Thunderstorm WarningBGMLuzerne61 min
Aug 14, 6:34 PM EDTSevere Thunderstorm WarningBOXNorfolk, Suffolk41 min
Aug 14, 6:37 PM EDTSevere Thunderstorm WarningOKXBergen, Hudson38 min
Aug 14, 6:46 PM EDTSevere Thunderstorm WarningPHIBerks, Montgomery44 min
Aug 14, 6:50 PM EDTSevere Thunderstorm WarningOKXBronx, New York40 min
Aug 14, 6:52 PM EDTSevere Thunderstorm WarningALYGreene, Ulster53 min
Aug 14, 6:59 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe46 min
Aug 14, 7:51 PM EDTSevere Thunderstorm WarningBGMPike39 min
Aug 14, 7:52 PM EDTSevere Thunderstorm WarningPHIMontgomery23 min
Aug 14, 7:57 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton33 min
Aug 14, 8:16 PM EDTSevere Thunderstorm WarningPHISussex44 min
Aug 14, 8:31 PM EDTSevere Thunderstorm WarningPHINorthampton44 min
Aug 14, 8:33 PM EDTFlash Flood WarningOKXNew York, Queens3 hr
Aug 14, 8:34 PM EDTSevere Thunderstorm WarningBOXWorcester41 min
Aug 14, 8:39 PM EDTSevere Thunderstorm WarningPHIWarren51 min
Aug 14, 8:54 PM EDTSevere Thunderstorm WarningPHIWarren36 min
Aug 14, 8:58 PM EDTSevere Thunderstorm WarningOKXPassaic62 min
Aug 14, 9:04 PM EDTSevere Thunderstorm WarningBOXBristol41 min
Aug 14, 9:05 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris40 min
Aug 14, 9:26 PM EDTSevere Thunderstorm WarningOKXEssex, Union49 min
Aug 14, 9:32 PM EDTSevere Thunderstorm WarningPHILehigh, Northampton28 min
Aug 14, 9:37 PM EDTSevere Thunderstorm WarningPHIBucks38 min
Aug 14, 9:43 PM EDTSevere Thunderstorm WarningPHIBerks32 min
Aug 14, 9:46 PM EDTSevere Thunderstorm WarningOKXBergen44 min
Aug 14, 9:58 PM EDTSevere Thunderstorm WarningPHIMontgomery32 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, 5.3 hours before the alert went out and 94 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 2005-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 295 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 2005-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
295 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
848 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 12:08 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 4:38 PM EDTMesoscale DiscussionSPC2 hr

Nearby

Severe Thunderstorm Watches in Pennsylvania, 2005Severe Thunderstorm Watches in New York, 2005Severe Thunderstorm Watches in Massachusetts, 2005Every severe thunderstorm watch in 2005

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.