Alert archive / New York / Tornado Watches in 1997

Tornado Watch 559

July 3, 199728 counties in New York

The Storm Prediction Center issued this tornado watch at Jul 3, 1997, 11:15 AM EDT for 28 counties in New York. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 3, 1997, 11:15 AM EDT (15:15 UTC)
Expired
Jul 3, 1997, 5:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 28 counties

Albany County, NY, Broome County, NY, Cayuga County, NY, Chenango County, NY, Columbia County, NY, Cortland County, NY, Delaware County, NY, Essex County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Tioga County, NY, Tompkins County, NY, Warren County, NY, Washington County, NY

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 3, 11:16 AM EDTSevere Thunderstorm WarningBTVClinton, Essex59 min
Jul 3, 11:44 AM EDTSevere Thunderstorm WarningBGMCortland46 min
Jul 3, 12:13 PM EDTSevere Thunderstorm WarningBGMChenango62 min
Jul 3, 12:15 PM EDTSevere Thunderstorm WarningALYSaratoga, Warren60 min
Jul 3, 1:08 PM EDTSevere Thunderstorm WarningALYHerkimer67 min
Jul 3, 1:31 PM EDTSevere Thunderstorm WarningBGMOtsego59 min
Jul 3, 2:03 PM EDTSevere Thunderstorm WarningALYSchoharie57 min
Jul 3, 2:50 PM EDTSevere Thunderstorm WarningALYWashington55 min
Jul 3, 3:00 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie60 min
Jul 3, 4:42 PM EDTSevere Thunderstorm WarningALYColumbia63 min

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 3.3 hours before the alert went out and 140 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 1997-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 901 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 1997-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
901 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

500 
WWUS9 KMKC 031436
SEL9  
MKC WW 031436
NYZ000-LOZ000-032100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 559
STORM PREDICTION CENTER NORMAN OK
1036 AM EDT THU JUL 3 1997

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   CENTRAL AND EASTERN NEW YORK                           
   EASTERN LAKE ONTARIO                       

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 1115 AM UNTIL
500 PM EDT.

TORNADOES...HAIL TO 1 3/4 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 85 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 25 MILES WEST OF SYRACUSE NEW YORK TO 20 MILES
EAST SOUTHEAST OF GLENS FALLS NEW YORK.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.


DISCUSSION...STORMS INTENSIFYING AHEAD OF COLD FRONT CENTRAL NY. 
FAVORABLE SHEAR PROFILES IN PLACE FOR SUPERCELLS AND TORNADOS AHEAD
OF STORMS INTO EASTERN NY.  WITH AIRMASS BECOMING STRONGLY
UNSTABLE...SEVERE THUNDERSTORMS AND SUPERCELLS WILL DEVELOP RAPIDLY
EASTWARD ACROSS NY NEXT SEVERAL HOURS.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 3/4 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 75 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500.  MEAN STORM MOTION VECTOR 26040.


...HALES

441,0763 441,0731 420,0731 420,0763

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 9:00 PM EDTSevere Thunderstorm WatchSPCAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 11 more5 hr
Jul 3, 4:00 PM EDTTornado WatchSPCBronx, Columbia, Delaware, Dutchess, Greene, Kings and 11 more6 hr

Nearby

Tornado Watches in New York, 1997Every tornado 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.