Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 8, NWS Buffalo, NY

May 9, 2000Allegany County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 9, 2000, 6:22 PM EDT for Allegany County, New York. It was in force for 68 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 9, 2000, 6:22 PM EDT (22:22 UTC)
Expired
May 9, 2000, 7:30 PM EDT
In force
68 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 96 km from the middle of the area, began a volume at 22:24 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.4 hours before the alert went out and 93 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 2000-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 751 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 2000-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
751 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
100 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 092229
SVRBUF
NYC003-092330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
622 PM EDT TUE MAY 9 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 730 PM EDT.

* AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER THE TOWN OF BELMONT...AND ANOTHER STORM 
  10 MILES WEST OF BELMONT...MOVING EAST AT 30 MPH...

* THE SEVERE THUNDERSTORMS WILL...
  CROSS ALLEGANY COUNTY BETWEEN 630 AND 715 PM.
  
THESE ARE DANGEROUS STORMS THAT COULD PRODUCE DAMAGING WINDS...HAIL
AND FREQUENT LIGHTNING. THEY COULD ALSO PRODUCE LOCALIZED FLOODING. 
STAY INDOORS AWAY FROM WINDOWS.

NIZIOL

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 1:35 AM EDTSevere Thunderstorm WarningBUFJefferson, Lewis55 min
May 9, 6:35 PM EDTSevere Thunderstorm WarningBUFChautauqua55 min
May 9, 7:02 PM EDTSevere Thunderstorm WarningBUFErie58 min
May 9, 7:24 PM EDTSevere Thunderstorm WarningBUFChautauqua81 min
May 9, 7:46 PM EDTSevere Thunderstorm WarningBUFCattaraugus59 min

Nearby

Severe Thunderstorm Warnings in New York, 2000Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.