Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 3, NWS Buffalo, NY

April 28, 2002Cattaraugus County, Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 28, 2002, 2:34 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 26 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 28, 2002, 2:34 PM EDT (18:34 UTC)
Expired: Apr 28, 2002, 3:00 PM EDT
In force: 26 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

Counties Cattaraugus County, NY, Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 99 km from the middle of the area, began a volume at 18:34 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
Apr 28, 2:35 PM EDT	Hail 0.75	Frewsburg, NY
Apr 28, 2:40 PM EDT	Hail 1.25	Randolph, NY
Apr 28, 3:00 PM EDT	Thunderstorm Wind 55 E	Randolph, 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
Apr 28, 2:00 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.6 hours before the alert went out and 97 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 419 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 686 m²/s²
0-3 km storm-relative helicity: 744 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.

210 
WUUS51 KBUF 281834
SVRBUF
NYC009-013-281900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
233 PM EDT SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE CITY OF SALAMANCA
  SOUTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 300 PM EDT

* AT 229 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF FREWSBURG...OR ABOUT 10
  MILES SOUTHEAST OF JAMESTOWN...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE...
   TOWARD CENTRAL CATTARAUGUS COUNTY BY 3 PM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY EVENING FOR
WESTERN NEW YORK.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BUFFALO.

LAT...LON 4203 7923 4191 7906 4215 7868 4231 7890

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 12:54 PM EDT	Special Marine Warning	BUF		36 min
Apr 28, 1:27 PM EDT	Special Marine Warning	BUF		33 min
Apr 28, 2:05 PM EDT	Special Marine Warning	BUF		55 min
Apr 28, 2:40 PM EDT	Severe Thunderstorm Warning	BUF	Erie	35 min
Apr 28, 2:43 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	32 min
Apr 28, 2:43 PM EDT	Tornado Warning	BUF	Erie	32 min
Apr 28, 2:49 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	26 min
Apr 28, 3:00 PM EDT	Tornado Warning	BUF	Erie, Wyoming	30 min
Apr 28, 3:12 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	48 min
Apr 28, 3:29 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	31 min
Apr 28, 3:30 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	30 min
Apr 28, 3:38 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	37 min
Apr 28, 3:48 PM EDT	Tornado Warning	BUF	Allegany	42 min

Nearby

Severe Thunderstorm Warnings in New York, 2002 Every severe thunderstorm warning in 2002

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.