Alert archive / New York / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 86, NWS Buffalo, NY

August 20, 1996Allegany County, Cattaraugus County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 20, 1996, 7:54 PM EDT for Allegany County, Cattaraugus County, Wyoming County, New York. It was in force for 66 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 20, 1996, 7:54 PM EDT (23:54 UTC)
Expired: Aug 20, 1996, 9:00 PM EDT
In force: 66 min
Issued by: NWS Buffalo, NY
Area: Whole counties

Counties Allegany County, NY, Cattaraugus County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 70 km from the middle of the area, began a volume at 23:58 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.

What was reported inside it

Time	Report	Where	Remark
Aug 20, 8:18 PM EDT	Thunderstorm Wind	Farmersville, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.9 hours before the alert went out and 67 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 119 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.

000 
TTAA00 KBUF 202356
SVRBUF
NYC003-009-121-210100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
754 PM EDT TUE AUG 20 1996

THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST NEW YORK

   ...NORTHWESTERN ALLEGANY COUNTY
   ...NORTHERN CATTARAUGUS COUNTY
   ...SOUTHERN WYOMING COUNTY
 
AT 750 PM...DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 10
MILES WEST OF DELAVAN MOVING EAST AT 35 MPH. THIS STORM WILL MOVE
NEAR OR ACROSS DELAVAN...LAKEVIEW AND SANDUSKY BY 815 PM...NEAR OR
ACROSS ARCADE BY 830 PM AND TO HOUGHTON BY 845 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH
AND/OR HAIL 3/4 INCH OR LARGER. FOR YOUR PROTECTION FROM
POTENTIALLY DAMAGING WINDS...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS MAY ALSO CAUSE RAPID
FLOODING OF SMALL STREAMS AND POOR DRAINAGE AREAS. DON'T ATTEMPT TO
CROSS FLOODED ROADWAYS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 7:54 PM EDT	Flash Flood Warning	BUF	Allegany, Cattaraugus, Wyoming	66 min

Nearby

Severe Thunderstorm Warnings in New York, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.