Alert archive / New York / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 71, NWS Buffalo, NY

August 29, 2004Cattaraugus County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 29, 2004, 5:11 PM EDT for Cattaraugus County, New York. It was in force for 34 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: Aug 29, 2004, 5:11 PM EDT (21:11 UTC)
Expired: Aug 29, 2004, 5:45 PM EDT
In force: 34 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), 69 km from the middle of the area, began a volume at 21:13 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
Aug 29, 1:20 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.2 hours before the alert went out and 66 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: 1070 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 292111
SVRBUF
NYC009-292145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
510 PM EDT SUN AUG 29 2004

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 545 PM EDT

* AT 504 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR FRANKLINVILLE...
  OR ABOUT 15 MILES NORTHEAST OF SALAMANCA...AND WAS MOVING NORTHEAST
  AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FRANKLINVILLE AT 555 PM.

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 4239 7866 4225 7851 4220 7833 4252 7842

$$

NIZIOL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 2:03 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	27 min
Aug 29, 2:07 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	53 min
Aug 29, 2:55 PM EDT	Flash Flood Warning	BUF	Monroe	3 hr
Aug 29, 3:10 PM EDT	Flash Flood Warning	BUF	Wayne	3 hr
Aug 29, 5:56 PM EDT	Special Marine Warning	BUF		64 min
Aug 29, 6:06 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	54 min

Nearby

Severe Thunderstorm Warnings in New York, 2004 Every severe thunderstorm warning in 2004

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.