Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS Buffalo, NY

April 28, 2002Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 28, 2002, 2:40 PM EDT for Erie County, New York. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 28, 2002, 2:40 PM EDT (18:40 UTC)
Expired: Apr 28, 2002, 3:15 PM EDT
In force: 35 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Erie County, NY

The radar

The Buffalo radar (KBUF), 31 km from the middle of the area, began a volume at 18:44 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 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, 6.7 hours before the alert went out and 28 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.

499 
WUUS51 KBUF 281840
SVRBUF
NYC029-281915-

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ERIE COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE CITY OF BUFFALO

* UNTIL 315 PM EDT

* AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM OVER BOSTON...MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL CROSS...
  EAST AURORA AT 245 PM EDT
  WALES CENTER AT 255 PM EDT

THESE STORMS HAVE A HISTORY OF PRODUCING HAIL.

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 4272 7884 4255 7875 4259 7849 4280 7849

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, 2:34 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.