Alert archive / New York / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 16, NWS Buffalo, NY

June 30, 1990Genesee County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 30, 1990, 7:46 PM EDT for Genesee County, New York. It was in force for 59 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
Jun 30, 1990, 7:46 PM EDT (23:46 UTC)
Expired
Jun 30, 1990, 8:45 PM EDT
In force
59 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Genesee 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
Jun 30, 8:00 PM EDTThunderstorm Wind 0Genesee, 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, 11.8 hours before the alert went out and 42 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 1990-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 1990-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
592 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
93 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 302346 RRA
SVRBUF
NYC037-010045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
746 PM EDT SAT JUN 30 1990
 
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN  NEW YORK
          ...GENESEE
 
AT 740 PM BUFFALO RADAR DETECTED A SEVERE THUNDERSTORM OVER SOUTHERN
NIAGARA COUNTY. THE STORM WAS MOVING SOUTHEAST AT 35 MILES AN HOUR.
THE SHERIFFS DEPARTMENT REPORTED DIME SIZE HAIL AND LARGE BRANCHES
DOWN THE IN THE TOWN OF MIDDLEPORT FROM THIS STORM.
 
 
BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT
LIGHTNING...STRONG DAMAGING WINDS AND LARGE HAIL.  LOCALLY HEAVY
RAIN MAY ALSO CAUSE DRAINAGE FLOODING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 5:20 PM EDTSevere Thunderstorm WarningBUFNiagara, Orleans55 min
Jun 30, 6:13 PM EDTSevere Thunderstorm WarningBUFGenesee62 min
Jun 30, 7:11 PM EDTSevere Thunderstorm WarningBUFNiagara64 min

Nearby

Severe Thunderstorm Warnings in New York, 1990Every severe thunderstorm warning in 1990

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.