Alert archive / New York / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 28, NWS Buffalo, NY

May 22, 2004Genesee County, Livingston County, Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 22, 2004, 10:11 PM EDT for Genesee County, Livingston County, Monroe County, New York. It was in force for 49 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 22, 2004, 10:11 PM EDT (02:11 UTC)
Expired
May 22, 2004, 11:00 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

Counties Genesee County, NY, Livingston County, NY, Monroe County, NY

The radar

The Buffalo radar (KBUF), 78 km from the middle of the area, began a volume at 02:14 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.

IssuedProductOfficeLasted
May 22, 5:45 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.2 hours before the alert went out and 75 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2004-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1116 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2004-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1116 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
1.1
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

148 
WUUS51 KBUF 230211
SVRBUF
NYC037-051-055-230300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1011 PM EDT SAT MAY 22 2004

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GENESEE COUNTY IN WESTERN NEW YORK
  LIVINGSTON COUNTY IN WESTERN NEW YORK
  MONROE COUNTY IN WESTERN NEW YORK

* UNTIL 1100 PM EDT

* AT 1009 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM 7 MILES WEST OF CHURCHVILLE TO 11 MILES
  SOUTHWEST OF LE ROY...OR ALONG A LINE EXTENDING FROM 8 MILES
  SOUTHWEST OF BROCKPORT TO 9 MILES SOUTH OF BATAVIA...AND WERE
  MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  LE ROY AT 1020 PM EDT...
  CHURCHVILLE AT 1025 PM EDT...
  CALEDONIA AT 1035 PM EDT...
  YORK AT 1040 PM EDT...
  SCOTTSVILLE AT 1045 PM EDT...
  AVON AT 1055 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.

LAT...LON 4315 7793 4288 7804 4284 7761 4311 7742

$$

TMA/PO

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 8:45 PM EDTSevere Thunderstorm WarningBUFOntario60 min
May 22, 10:02 PM EDTFlash Flood WarningBUFLivingston, Ontario4 hr
May 23, 12:20 AM EDTFlash Flood WarningBUFAllegany, Cattaraugus4 hr
May 23, 5:53 AM EDTFlash Flood WarningBUFCattaraugus2 hr
May 23, 6:26 AM EDTFlash Flood WarningBUFChautauqua, Erie3 hr
May 23, 2:31 PM EDTSevere Thunderstorm WarningBUFChautauqua44 min
May 23, 3:25 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua65 min

Nearby

Severe Thunderstorm Warnings in New York, 2004Every 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.