Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 66, NWS Buffalo, NY

August 9, 2000Allegany County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 9, 2000, 7:00 PM EDT for Allegany 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: Aug 9, 2000, 7:00 PM EDT (23:00 UTC)
Expired: Aug 9, 2000, 8:00 PM EDT
In force: 60 min
Issued by: NWS Buffalo, NY
Area: Whole counties

County Allegany County, NY

What was reported inside it

Time	Report	Where	Remark
Aug 9, 7:15 PM EDT	Thunderstorm Wind	Angelica, 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

Pittsburgh, PA (KPIT), launched 12:00Z, 11.0 hours before the alert went out and 269 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: 270 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 092303
SVRBUF
NYC003-100000-

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEGANY COUNTY IN WESTERN NEW YORK.
  
* UNTIL 800 PM EDT.

* AT 650 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM ALONG THE CATTARUGUS-ALLEGANY COUNTY LINE    
  NEAR CUBA...OR 12 MILES NORTHEAST OF OLEAN...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FRIENDSHIP AROUND 715 PM EDT.
  BELMONT AROUND 730 PM EDT.
  ALFRED AROUND 750 PM EDT. 
  
THESE STORMS HAVE A HISTORY OF LARGE HAIL. FLASH FLOODING IS 
POSSIBLE AS WELL.

MCLAUGHLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 6:07 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	53 min
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, 7:19 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.