Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 49, NWS Buffalo, NY

June 21, 2000Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 21, 2000, 1:20 PM EDT for Wyoming County, New York. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jun 21, 2000, 1:20 PM EDT (17:20 UTC)
Expired: Jun 21, 2000, 2:00 PM EDT
In force: 40 min
Issued by: NWS Buffalo, NY
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wyoming County, NY

What was reported inside it

Time	Report	Where	Remark
Jun 21, 1:50 PM EDT	Hail 0.75	Warsaw, 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.3 hours before the alert went out and 39 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: 54 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 211 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 
WUUS51 KBUF 211723
SVRBUF
NYC121-211815-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
120 PM EDT WED JUN 21 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WYOMING COUNTY IN WESTERN NEW YORK.

* UNTIL 200 PM EDT.

* AT 120 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM A FEW MILES WEST OF VARYSBURG...MOVING       
  NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  STRYKERSVILLE AROUND 130 PM
  WARSAW AROUND 140 PM EDT.
  PERRY...WYOMING AROUND 150 PM EDT.

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

MCLAUGHLIN

LAT...LON 4281 7851 4266 7841 4264 7799 4287 7799

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 1:35 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	25 min
Jun 21, 1:50 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe	40 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.