Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 15, NWS Buffalo, NY

May 31, 2002Orleans County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 31, 2002, 2:55 PM EDT for Orleans County, New York. It was in force for 50 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: May 31, 2002, 2:55 PM EDT (18:55 UTC)
Expired: May 31, 2002, 3:45 PM EDT
In force: 50 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Orleans County, NY

The radar

The Buffalo radar (KBUF), 53 km from the middle of the area, began a volume at 18:56 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
May 31, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.9 hours before the alert went out and 52 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: 728 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 961 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 240 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

766 
WUUS51 KBUF 311855
SVRBUF
NYC073-311945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
254 PM EDT FRI MAY 31 2002

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 345 PM EDT

* AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM OVER MEDINA...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLEY AND KENDALL AT 305 PM EDT...

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM FLOOD-PRONE AREAS. A SEVERE THUNDERSTORM CAN PRODUCE LARGE
DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY
LIGHTNING...AND VERY HEAVY RAIN.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT FRIDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4331 7836 4313 7839 4314 7800 4332 7801

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 7:10 AM EDT	Special Marine Warning	BUF		110 min
May 31, 7:10 AM EDT	Special Marine Warning	BUF		110 min
May 31, 7:10 AM EDT	Special Marine Warning	BUF		110 min
May 31, 7:30 AM EDT	Special Marine Warning	BUF		2 hr
May 31, 8:15 AM EDT	Special Marine Warning	BUF		2 hr
May 31, 9:39 AM EDT	Special Marine Warning	BUF		21 min
May 31, 9:48 AM EDT	Special Marine Warning	BUF		27 min
May 31, 11:34 AM EDT	Severe Thunderstorm Warning	BUF	Monroe, Orleans	26 min
May 31, 1:06 PM EDT	Special Marine Warning	BUF		114 min
May 31, 1:06 PM EDT	Special Marine Warning	BUF		114 min
May 31, 1:23 PM EDT	Special Marine Warning	BUF		112 min
May 31, 1:23 PM EDT	Special Marine Warning	BUF		112 min
May 31, 1:50 PM EDT	Severe Thunderstorm Warning	BUF	Niagara, Orleans	55 min
May 31, 2:03 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	57 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.