Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 51, NWS Buffalo, NY

July 22, 2002Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 22, 2002, 4:48 PM EDT for Ontario County, New York. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 22, 2002, 4:48 PM EDT (20:48 UTC)
Expired: Jul 22, 2002, 5:30 PM EDT
In force: 42 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Ontario County, NY

The radar

The Binghamton radar (KBGM), 119 km from the middle of the area, began a volume at 20:51 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
Jul 22, 5:10 PM EDT	Thunderstorm Wind 50 E	Naples, 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, 8.8 hours before the alert went out and 120 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: 859 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 203 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.

579 
WUUS51 KBUF 222048
SVRBUF
NYC069-222130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
448 PM EDT MON JUL 22 2002

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 530 PM EDT

* AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NAPLES...OR ABOUT 13 MILES EAST OF
  DANSVILLE...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GENEVA AT 525 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.

LAT...LON 4268 7753 4251 7745 4277 7680 4298 7697

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 8:52 AM EDT	Special Marine Warning	BUF		38 min
Jul 22, 3:08 PM EDT	Special Marine Warning	BUF		52 min
Jul 22, 3:55 PM EDT	Severe Thunderstorm Warning	BUF	Ontario, Wayne	50 min
Jul 22, 4:05 PM EDT	Special Marine Warning	BUF		85 min
Jul 22, 5:14 PM EDT	Special Marine Warning	BUF		61 min
Jul 22, 5:23 PM EDT	Special Marine Warning	BUF		97 min
Jul 22, 5:40 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	65 min
Jul 22, 5:45 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	45 min
Jul 22, 5:56 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	34 min
Jul 22, 6:03 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	57 min
Jul 22, 6:34 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	26 min
Jul 22, 6:59 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	31 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.