Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 7, NWS Buffalo, NY

May 9, 2000Jefferson County, Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 9, 2000, 1:35 AM EDT for Jefferson County, Lewis County, New York. It was in force for 55 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, 1:35 AM EDT (05:35 UTC)
Expired
May 9, 2000, 2:30 AM EDT
In force
55 min
Issued by
NWS Buffalo, NY
Area
Whole counties

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 16 km from the middle of the area, began a volume at 05:37 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

Albany, NY (KALY), launched 00:00Z, 5.6 hours before the alert went out and 205 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, Albany, NY at 00:00Z on 2000-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2916 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, Albany, NY at 00:00Z on 2000-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
2916 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
1.3
Supercell composite
8.4

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 090536
SVRBUF
NYC045-049-090630-

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN LEWIS COUNTY IN CENTRAL NEW YORK.
  NORTHERN JEFFERSON COUNTY IN CENTRAL NEW YORK.

* UNTIL 230 AM EDT.

* AT 127 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES SOUTHWEST
  OF OGDENSBURG TO 25 MILES NORTHWEST OF WATERTOWN TO 30 MILES
  NORTHWEST OF WATERTOWN...MOVING EAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CHAUMONT AROUND 145 AM EDT.
  THERESA AROUND 150 AM EDT.
  ANTWERP...CALCIUM AROUND 200 AM EDT.
  FORT DRUM AROUND 205 AM EDT.
  DEFERIET AROUND 210 AM EDT.
  CARTHAGE...HARRISVILLE AROUND 215 AM EDT.

THESE ARE DANGEROUS STORMS. STAY INDOORS AWAY FROM WINDOW+S.

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 6:22 PM EDTSevere Thunderstorm WarningBUFAllegany68 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.