Alert archive / New York / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 21, NWS Binghamton, NY

July 7, 1997Chemung County, New York; Bradford County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Jul 7, 1997, 2:20 PM EDT for Chemung County, New York; Bradford County, Pennsylvania. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 7, 1997, 2:20 PM EDT (18:20 UTC)
Expired: Jul 7, 1997, 3:15 PM EDT
In force: 55 min
Issued by: NWS Binghamton, NY
Area: Whole counties

Counties Chemung County, NY, Bradford County, PA

The radar

The Binghamton radar (KBGM), 60 km from the middle of the area, began a volume at 18:21 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.3 hours before the alert went out and 200 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 181 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBGM 071820 RRA
SVRBGM
NYC015-PAC015-071915-
 
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BINGHAMTON NY
220 PM EDT MON JUL 7 1997
 
THE NATIONAL WEATHER SERVICE IN BINGHAMTON NY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL NEW YORK
 
   ...CHEMUNG COUNTY
 
 
IN NORTHEAST PENNSYLVANIA
 
   ...BRADFORD COUNTY
 
WEATHER SERVICE RADAR SHOWS A SEVERE THUNDERSTORM WITH DAMAGING WINDS
AND POSSIBLE LARGE HAIL PASSING THROUGH ADDISON AT 215 PM. THIS STORM
WAS MOVING SOUTHEAST AROUND 20 MPH AND WILL REACH PINE CITY BY 240 PM
AND MOSHERVILLE BY 250 PM...THEN ELMIRA AND GILLETT BY 300 PM.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 d

The office that day

Everything else NWS Binghamton, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 1:24 PM EDT	Severe Thunderstorm Warning	BGM	Steuben	66 min
Jul 7, 2:47 PM EDT	Severe Thunderstorm Warning	BGM	Tioga, Tompkins	58 min
Jul 7, 3:49 PM EDT	Severe Thunderstorm Warning	BGM	Steuben	56 min
Jul 7, 4:00 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Tompkins	45 min
Jul 7, 4:20 PM EDT	Severe Thunderstorm Warning	BGM	Cortland	55 min
Jul 7, 3:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	65 min

Nearby

Severe Thunderstorm Warnings in New York, 1997 Severe Thunderstorm Warnings in Pennsylvania, 1997 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.