Alert archive / New York / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 34, NWS Buffalo, NY

August 16, 1991Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 16, 1991, 3:48 PM EDT for Niagara County, New York. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Aug 16, 1991, 3:48 PM EDT (19:48 UTC)
Expired
Aug 16, 1991, 4:45 PM EDT
In force
57 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Niagara County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.8 hours before the alert went out and 27 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 1991-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 515 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, Buffalo Intl Airport, NY at 12:00Z on 1991-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939Sfc1 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
515 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
116 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 161849
SVRBUF
NYC063-161945-

BULLETIN  EBS ACTIVATION  REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
348 PM EDT FRI AUG 16 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 445 PM EDT FOR PEOPLE IN THE FOLLOWING NEW YORK
COUNTIES...

NIAGARA

AND INCLUDING THE ADJACENT WATERS OF LAKE ONTARIO.

AT 345 PM BUFFALO RADAR INDICATED A SEVERE THUNDERSTORM IN NIAGARA
COUNTY NEAR WILSON NEW YORK.  THE THUNDERSTORM WAS MOVING TOWARD THE
EAST AT 25 MPH.  

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

DUNHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 10:55 PM EDTSevere Thunderstorm WarningBUFErie55 min
Aug 16, 3:01 PM EDTSevere Thunderstorm WarningBUFNiagara, Orleans44 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; the sounding from the Mesonet's radiosonde archive.