Alert archive / New York / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 689

July 26, 200521 counties in New York; 4 counties in Pennsylvania

The Storm Prediction Center issued this severe thunderstorm watch at Jul 26, 2005, 5:45 PM EDT for 21 counties in New York; 4 counties in Pennsylvania. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 26, 2005, 5:45 PM EDT (21:45 UTC)
Expired
Jul 26, 2005, 10:07 PM EDT
In force
4 hr
Issued by
the Storm Prediction Center
All 25 counties

Broome County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Yates County, NY, Bradford County, PA, Potter County, PA, Susquehanna County, PA, Tioga County, PA

The radar

The Ft Drum radar (KTYX), 121 km from the middle of the area, began a volume at 21:49 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

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

IssuedProductOfficeCountiesLasted
Jul 26, 5:50 PM EDTSevere Thunderstorm WarningBUFCayuga, Wayne52 min
Jul 26, 6:07 PM EDTSevere Thunderstorm WarningBGMSteuben53 min
Jul 26, 6:11 PM EDTSevere Thunderstorm WarningBUFMonroe, Orleans49 min
Jul 26, 6:16 PM EDTSevere Thunderstorm WarningBUFLivingston44 min
Jul 26, 6:22 PM EDTSevere Thunderstorm WarningBGMYates53 min
Jul 26, 6:33 PM EDTSevere Thunderstorm WarningBUFOntario51 min
Jul 26, 6:33 PM EDTSevere Thunderstorm WarningCTPPotter72 min
Jul 26, 6:46 PM EDTSevere Thunderstorm WarningBGMSchuyler59 min
Jul 26, 6:47 PM EDTSevere Thunderstorm WarningBUFOswego43 min
Jul 26, 6:57 PM EDTSevere Thunderstorm WarningBGMSeneca, Steuben48 min
Jul 26, 7:00 PM EDTSevere Thunderstorm WarningBUFWayne33 min
Jul 26, 7:02 PM EDTSevere Thunderstorm WarningCTPTioga61 min
Jul 26, 7:03 PM EDTSevere Thunderstorm WarningBGMCayuga, Seneca57 min
Jul 26, 7:09 PM EDTSevere Thunderstorm WarningBUFLewis51 min
Jul 26, 7:13 PM EDTSevere Thunderstorm WarningBGMYates32 min
Jul 26, 7:17 PM EDTSevere Thunderstorm WarningBGMChemung58 min
Jul 26, 7:20 PM EDTSevere Thunderstorm WarningBGMTompkins55 min
Jul 26, 7:30 PM EDTSevere Thunderstorm WarningBUFOswego32 min
Jul 26, 7:49 PM EDTSevere Thunderstorm WarningBGMOnondaga56 min
Jul 26, 7:59 PM EDTSevere Thunderstorm WarningBGMCortland, Tioga49 min
Jul 26, 8:09 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango81 min
Jul 26, 8:12 PM EDTSevere Thunderstorm WarningBGMBradford63 min
Jul 26, 8:19 PM EDTSevere Thunderstorm WarningBGMMadison56 min
Jul 26, 8:25 PM EDTSevere Thunderstorm WarningBGMSusquehanna71 min
Jul 26, 8:36 PM EDTSevere Thunderstorm WarningBGMOneida38 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.8 hours before the alert went out and 150 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, Buffalo Intl Airport, NY at 12:00Z on 2005-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Buffalo Intl Airport, NY at 12:00Z on 2005-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1909 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 2:00 PM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Erie, Genesee, Livingston, Monroe and 4 more90 min
Jul 26, 2:58 PM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 5 more62 min
Jul 26, 3:30 PM EDTSevere Thunderstorm WatchSPCAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Orleans and 1 more8 hr
Jul 26, 7:16 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Cambria, Carbon and 26 more89 min

Nearby

Severe Thunderstorm Watches in New York, 2005Severe Thunderstorm Watches in Pennsylvania, 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.