Alert archive / New York / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 1, NWS Buffalo, NY

March 2, 1991Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Mar 2, 1991, 4:05 PM EST for Chautauqua 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
Mar 2, 1991, 4:05 PM EST (21:05 UTC)
Expired
Mar 2, 1991, 5:05 PM EST
In force
60 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Chautauqua County, NY

What was reported inside it

TimeReportWhereRemark
Mar 2, 4:55 PM ESTThunderstorm Wind 0Chautauqua, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.1 hours before the alert went out and 91 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 1991-03-02Temperature 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 1991-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 310 square meters per square second.1939587897117Sfc1 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
700 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
310 m²/s²
0-3 km storm-relative helicity
354 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBUF 022116
SVRBUF
NYC013-032205-

BULLETIN  EBS ACTIVATION  REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
405 PM EST SAT MAR 2 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 505 PM EST FOR PEOPLE IN THE FOLLOWING NEW YORK
COUNTIES...

CHAUTAUQUA

AT 400 PM BUFFALO RADAR DETECTED A SEVERE THUNDERSTORM OVER SOUTHWESTERN
CHAUTAUQUA COUNTY.  THE STORM WAS MOVING NORTHEAST AT 40 MILES AN HOUR.
THERE WERE REPORTS OF HAIL AS LARGE AS 1 INCH IN DIAMETER FROM THIS CELL
AS IT CROSSED NORTHEAST OHIO.

BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT LIGHTNING..
STRONG DAMAGING WINDS AND LARGE HAIL.  LOCALLY HEAVY RAIN MAY ALSO CAUSE
DRAINAGE FLOODING.

IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY.
IN HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION.

NIZIOL

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 2, 3:45 PM EST, 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BUFFALO NY
330 PM EST SAT MAR 3 1991

DO NOT USE AFTER 5 PM

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CHAUTAUQUA CATTARAUGUS
ERIE GENESEE AND WYOMING COUNTIES UNTIL 7PM TONIGHT.

AT 330PM A BROKEN AREA OF SHOWERS AND THUNDERSTORMS HAD MOVED INTO
FAR NORTHWEST PENNSYLVANIA...EXTREME NORTHEAST OHIO AND THE ADJACENT
WATERS OF LAKE ERIE. THE ACTIVITY COVERED ASHTABULA COUNTY OHIO AS
WELL AS CRAWFORD AND ERIE COUNTIES IN PENNSYLVANIA. THE MOST
SIGNIFICANT STORM WAS JUST NORTH OF ANDOVER OHIO.

THE THUNDERSTORMS ARE MOVING NORTHEAST AT 35 MILES AND HOUR...AND
SHOULD REACH CHAUTAUQUA COUNTY NEW YORK BY 4PM.

ONE INCH HAIL@ WAS REPORTED IN YOUNGSTOWN OHIO SHORTLY BEFORE 3PM.
RESIDENTS OF SOUTHWEST NEW YORK SHOULD STAY TUNED TO NOAA WEATHER
RADIO OR COMMERCIAL RADIO AND TELEVISION AND TAKE APPROPRIATE
SHELTER IF THUNDERSTORMS ARE SIGHTED.

MAMROSH

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 4:50 PM ESTSevere Thunderstorm WarningBUFCattaraugus, Erie70 min
Mar 2, 6:08 PM ESTSevere Thunderstorm WarningBUFGenesee62 min

Nearby

Severe Thunderstorm Warnings in New York, 1991Every severe thunderstorm warning in 1991

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.