Alert archive / New York / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 618

July 17, 19974 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 17, 1997, 4:00 PM EDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 17, 1997, 4:00 PM EDT (20:00 UTC)
Expired
Jul 17, 1997, 10:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 45 counties

Berkshire County, MA, Franklin County, MA, Hampshire County, MA, Cheshire County, NH, Coos County, NH, Grafton County, NH, Sullivan County, NH, Albany County, NY, Broome County, NY, Chenango County, NY, Clinton County, NY, Columbia County, NY, Cortland County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Tioga County, NY, Warren County, NY, Washington County, NY, 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

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 17, 4:05 PM EDTSevere Thunderstorm WarningALYSaratoga60 min
Jul 17, 4:15 PM EDTSevere Thunderstorm WarningBGMOtsego60 min
Jul 17, 4:20 PM EDTSevere Thunderstorm WarningALYMontgomery60 min
Jul 17, 4:45 PM EDTSevere Thunderstorm WarningBGMDelaware60 min
Jul 17, 5:25 PM EDTSevere Thunderstorm WarningALYBennington60 min
Jul 17, 5:51 PM EDTSevere Thunderstorm WarningBTVWindsor69 min
Jul 17, 6:08 PM EDTSevere Thunderstorm WarningBTVFranklin67 min
Jul 17, 6:11 PM EDTSevere Thunderstorm WarningGYXSullivan49 min
Jul 17, 7:03 PM EDTSevere Thunderstorm WarningALYBerkshire42 min
Jul 17, 7:22 PM EDTSevere Thunderstorm WarningBTVEssex, Franklin68 min
Jul 17, 7:30 PM EDTSevere Thunderstorm WarningBTVChittenden60 min
Jul 17, 7:42 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Washington63 min
Jul 17, 7:53 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire67 min
Jul 17, 8:43 PM EDTSevere Thunderstorm WarningBTVOrange, Washington62 min

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.0 hours before the alert went out and 69 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 1997-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 74 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 1997-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
74 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
1106 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 7:00 PM EDTSevere Thunderstorm WatchSPCEssex, Middlesex4 hr

Nearby

Severe Thunderstorm Watches in New York, 1997Severe Thunderstorm Watches in Vermont, 1997Severe Thunderstorm Watches in New Hampshire, 1997Every severe thunderstorm watch in 1997

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.