Alert archive / New York / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 11, NWS Buffalo, NY

July 7, 1986Niagara County, Orleans County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 7, 1986, 1:38 PM EDT for Niagara County, Orleans County, New York. It was in force for 52 min. 2 reports 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 7, 1986, 1:38 PM EDT (17:38 UTC)
Expired
Jul 7, 1986, 2:30 PM EDT
In force
52 min
Issued by
NWS Buffalo, NY
Area
Whole counties

Counties Niagara County, NY, Orleans County, NY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 7, 1:45 PM EDTThunderstorm Wind 0Niagara, NY
Jul 7, 2:30 PM EDTThunderstorm Wind 0Orleans, 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, 5.6 hours before the alert went out and 38 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 1986-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 577 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 1986-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
577 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
45 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 KBUF 071738
SVRBUF
NYC063-073-071830-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
138 PM EDT MON JUL 7 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND 
SPECIAL MARINE WARNING EFFECTIVE UNTIL 230 PM EDT FOR PEOPLE IN THE 
FOLLOWING COUNTIES OF

NEW YORK...NIAGARA AND ORLEANS
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTIES JUST MENTIONED

AT 130PM EDT BUFFALO RADAR INDICATED SEVERE THUNDERSTORMS
OVER WESTERN LAKE ONTARIO.  THE THUNDERTORMS WERE MOVING
EAST SOUTHEAST AT 25 MILES AN HOUR.

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.

 BAUER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:45 PM EDTSevere Thunderstorm WarningBUFGenesee, Orleans55 min

Nearby

Severe Thunderstorm Warnings in New York, 1986Every severe thunderstorm warning in 1986

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.