Alert archive / New York / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 3, NWS Buffalo, NY

May 1, 2003Cattaraugus County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 1, 2003, 2:40 PM EDT for Cattaraugus 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: May 1, 2003, 2:40 PM EDT (18:40 UTC)
Expired: May 1, 2003, 3:15 PM EDT
In force: 35 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 73 km from the middle of the area, began a volume at 18:40 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 1, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.7 hours before the alert went out and 70 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: -89 J/kg
Mixed-layer LCL: 790 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 83 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.

879 
WUUS51 KBUF 011840
SVRBUF
NYC009-011915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
240 PM EDT THU MAY 1 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 315 PM EDT

* AT 235 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF ASHFORD...OR ABOUT 8 MILES
  NORTH OF SALAMANCA...MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ASHFORD AND ASHFORD HOLLOW AT 245 PM EDT
  FRANKLINVILLE AT 255 PM EDT

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
THURSDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4219 7873 4233 7881 4252 7832 4230 7832

$$

TMA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 4:23 AM EDT	Special Marine Warning	BUF		112 min
May 1, 4:23 AM EDT	Special Marine Warning	BUF		112 min
May 1, 6:30 AM EDT	Special Marine Warning	BUF		30 min
May 1, 6:30 AM EDT	Special Marine Warning	BUF		30 min
May 1, 8:31 AM EDT	Special Marine Warning	BUF		44 min
May 1, 8:31 AM EDT	Special Marine Warning	BUF		44 min
May 1, 8:31 AM EDT	Special Marine Warning	BUF		44 min
May 1, 9:08 AM EDT	Special Marine Warning	BUF		37 min
May 1, 10:35 AM EDT	Special Marine Warning	BUF		40 min
May 1, 1:30 PM EDT	Special Marine Warning	BUF		30 min
May 1, 1:34 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	41 min
May 1, 1:39 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	51 min
May 1, 2:10 PM EDT	Special Marine Warning	BUF		50 min
May 1, 2:10 PM EDT	Special Marine Warning	BUF		50 min
May 1, 3:07 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	23 min

Nearby

Severe Thunderstorm Warnings in New York, 2003 Every severe thunderstorm warning in 2003

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.