Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 63, NWS Buffalo, NY

August 9, 2000Livingston County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 9, 2000, 6:07 PM EDT for Livingston County, Ontario County, New York. It was in force for 53 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: Aug 9, 2000, 6:07 PM EDT (22:07 UTC)
Expired: Aug 9, 2000, 7:00 PM EDT
In force: 53 min
Issued by: NWS Buffalo, NY
Area: Whole counties

Counties Livingston County, NY, Ontario County, NY

What was reported inside it

Time	Report	Where	Remark
Aug 9, 6:20 PM EDT	Thunderstorm Wind	Nunda, NY
Aug 9, 6:35 PM EDT	Thunderstorm Wind	Dansville, 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.

Issued	Product	Office	Lasted
Aug 9, 5:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.1 hours before the alert went out and 303 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 391 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 092209
SVRBUF
NYC051-069-092300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
607 PM EDT WED AUG 9 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK.
  SOUTHERN ONTARIO COUNTY IN WESTERN NEW YORK.

* UNTIL 700 PM EDT.

* AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM 7 MILES WEST OF DANSVILLE...MOVING           
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DANSVILLE AROUND 615 PM EDT.  
  SPRINGWATER AROUND 625 PM EDT.
  BRISTOL MOUNTAIN AROUND 640 PM EDT.

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

MCLAUGHLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 6:30 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	60 min
Aug 9, 6:38 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	52 min
Aug 9, 7:00 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	60 min
Aug 9, 7:19 PM EDT	Severe Thunderstorm Warning	BUF	Erie	46 min
Aug 9, 7:40 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	65 min

Nearby

Severe Thunderstorm Warnings in New York, 2000 Every severe thunderstorm warning in 2000

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.