Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 79, NWS Buffalo, NY

September 3, 2002Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 3, 2002, 4:19 PM EDT for Ontario County, New York. It was in force for 26 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: Sep 3, 2002, 4:19 PM EDT (20:19 UTC)
Expired: Sep 3, 2002, 4:45 PM EDT
In force: 26 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Ontario County, NY

The radar

The Buffalo radar (KBUF), 113 km from the middle of the area, began a volume at 20:18 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
Sep 3, 12:20 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.3 hours before the alert went out and 110 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: 574 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1161 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

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

293 
WUUS51 KBUF 032019
SVRBUF
NYC069-032045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
419 PM EDT TUE SEP 3 2002

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 445 PM EDT

* AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF HONEOYE...OR ABOUT 11
  MILES EAST OF GENESEO...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NAPLES AT 420 PM EDT
  BRISTOL AT 425 PM EDT
  CANANDAIGUA AT 435 PM EDT

VERY HEAVY RAINS...LARGE HAIL AND DAMAGING WINDS ARE THA MAIN 
THREATS FROM THE STORM.

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 600 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4287 7758 4269 7758 4269 7747 4259 7748
          4259 7738 4271 7737 4279 7733 4279 7699
          4294 7701

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 12:04 PM EDT	Special Marine Warning	BUF		26 min
Sep 3, 12:04 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	26 min
Sep 3, 12:06 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	24 min
Sep 3, 12:58 PM EDT	Special Marine Warning	BUF		62 min
Sep 3, 12:58 PM EDT	Special Marine Warning	BUF		62 min
Sep 3, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	27 min
Sep 3, 2:54 PM EDT	Special Marine Warning	BUF		51 min
Sep 3, 3:08 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Wyoming	67 min
Sep 3, 3:11 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	64 min
Sep 3, 3:53 PM EDT	Special Marine Warning	BUF		52 min
Sep 3, 4:41 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	64 min
Sep 3, 4:52 PM EDT	Special Marine Warning	BUF		38 min
Sep 3, 5:47 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	58 min
Sep 3, 6:33 PM EDT	Special Marine Warning	BUF		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.