Alert archive / New York / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 32, NWS Buffalo, NY

July 18, 1997Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 18, 1997, 3:30 PM EDT for Lewis County, New York. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 18, 1997, 3:30 PM EDT (19:30 UTC)
Expired
Jul 18, 1997, 4:30 PM EDT
In force
60 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Lewis County, NY

What was reported inside it

TimeReportWhereRemark
Jul 18, 4:15 PM EDTThunderstorm WindCroghan, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 18, 3:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.5 hours before the alert went out and 179 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 1997-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 964 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 1997-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 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
964 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
788 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBUF 181929 RRA
SVRBUF
NYC049-182030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
330 PM EDT FRI JUL 18 1997

THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTH NEW YORK

   ...LEWIS COUNTY
 
SEVERE THUNDERSTORMS MOVING EAST OF WATERTOWN IN JEFFERSON COUNTY WILL
MOVE THROUGH LEWIS COUNTY FROM LOWVILLE NORTH BETWEEN 330 PM AND 430
PM. THESE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH
AND/OR HAIL 3/4 INCH OR LARGER. FOR YOUR PROTECTION FROM
POTENTIALLY DAMAGING WINDS...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS MAY ALSO CAUSE RAPID
FLOODING OF SMALL STREAMS AND POOR DRAINAGE AREAS. DON'T ATTEMPT TO
CROSS FLOODED ROADWAYS.

&
SL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 1:51 PM EDTSevere Thunderstorm WarningBUFChautauqua59 min
Jul 18, 2:30 PM EDTSevere Thunderstorm WarningBUFJefferson60 min
Jul 18, 2:55 PM EDTSevere Thunderstorm WarningBUFCattaraugus80 min
Jul 18, 3:11 PM EDTSevere Thunderstorm WarningBUFAllegany79 min
Jul 18, 4:39 PM EDTSevere Thunderstorm WarningBUFNiagara, Orleans66 min
Jul 18, 4:50 PM EDTSevere Thunderstorm WarningBUFErie95 min
Jul 18, 5:22 PM EDTSevere Thunderstorm WarningBUFGenesee63 min
Jul 18, 6:03 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Wyoming62 min
Jul 18, 7:05 PM EDTSevere Thunderstorm WarningBUFErie45 min
Jul 18, 7:49 PM EDTSevere Thunderstorm WarningBUFCattaraugus61 min

Nearby

Severe Thunderstorm Warnings in New York, 1997Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.