Alert archive / New York / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 29, NWS Buffalo, NY

May 12, 2000Erie County, Genesee County, Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 12, 2000, 11:41 PM EDT for Erie County, Genesee County, Monroe County, New York. It was in force for 64 min. 4 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: May 12, 2000, 11:41 PM EDT (03:41 UTC)
Expired: May 13, 2000, 12:45 AM EDT
In force: 64 min
Issued by: NWS Buffalo, NY
Area: Whole counties

Counties Erie County, NY, Genesee County, NY, Monroe County, NY

The radar

The Buffalo radar (KBUF), 44 km from the middle of the area, began a volume at 03:45 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.

What was reported inside it

Time	Report	Where
May 13, 12:05 AM EDT	Thunderstorm Wind	Batavia, NY
May 13, 12:30 AM EDT	Thunderstorm Wind	Byron, NY
May 13, 12:30 AM EDT	Thunderstorm Wind	Batavia, NY
May 13, 12:40 AM EDT	Thunderstorm Wind	Gates Center, 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
May 12, 11:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 3.7 hours before the alert went out and 41 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: 1267 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 7.9

Open this sounding in Storm Lab

The text

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

343 
WUUS51 KBUF 130344
SVRBUF
NYC029-037-055-130445-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1141 PM EDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONROE COUNTY IN WESTERN NEW YORK.
  NORTHERN ERIE COUNTY IN WESTERN NEW YORK.
  NORTHERN GENESEE COUNTY IN WESTERN NEW YORK.

* UNTIL 1245 AM EDT.

* AT 1135 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM GRAND ISLAND TO ALBION...MOVING  
  EAST SOUTHEAST 35 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  BUFFALO AROUND MIDNIGHT EDT.
  BROCKPORT AROUND MIDNIGHT EDT.
  BERGEN...BERGEN AROUND 1205 AM EDT.
  CHURCHVILLE...HILTON AROUND 1210 AM EDT.
  SPENCERPORT...BRADDOCK BAY AROUND 1215 AM EDT.
  GREECE AROUND 1220 AM 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
May 12, 10:44 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	61 min
May 12, 11:08 PM EDT	Severe Thunderstorm Warning	BUF	Orleans	67 min
May 13, 12:26 AM EDT	Severe Thunderstorm Warning	BUF	Wayne	64 min
May 13, 12:26 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Wyoming	64 min
May 13, 12:45 AM EDT	Severe Thunderstorm Warning	BUF	Monroe	30 min
May 13, 12:52 AM EDT	Severe Thunderstorm Warning	BUF	Niagara	38 min
May 13, 1:00 AM EDT	Severe Thunderstorm Warning	BUF	Ontario	60 min
May 13, 12:25 PM EDT	Flash Flood Warning	BUF	Monroe, Wayne	7 hr

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; radar from the NEXRAD Level II archive.