Alert archive / New York / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 42, NWS Buffalo, NY

June 9, 2004Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 9, 2004, 4:00 PM EDT for Niagara County, New York. It was in force for 60 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
Jun 9, 2004, 4:00 PM EDT (20:00 UTC)
Expired
Jun 9, 2004, 5:00 PM EDT
In force
60 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Niagara County, NY

The radar

The Buffalo radar (KBUF), 37 km from the middle of the area, began a volume at 20:01 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

TimeReportWhereRemark
Jun 9, 4:40 PM EDTTSTM WND DMG3 E Olcott, NYTREE BLOCKING RTE 18. PEA SIZED HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.0 hours before the alert went out and 39 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 12:00Z on 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 623 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 12:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.1939Sfc1 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
623 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1163 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
137 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 
WUUS51 KBUF 092000
SVRBUF
NYC063-092100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
359 PM EDT WED JUN 9 2004

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 500 PM EDT

* AT 351 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED 7 MILES WEST OF
  YOUNGSTOWN...OR ABOUT 13 MILES NORTHWEST OF NIAGARA FALLS...AND WAS
  MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  YOUNGSTOWN AT 405 PM EDT...
  RANSOMVILLE AT 410 PM EDT...
  WILSON AT 420 PM EDT...
  OLCOTT AT 430 PM EDT...
  BARKER AT 440 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 4326 7848 4320 7895 4322 7905 4327 7901
  

****ERROR: INCOMPLETE DATA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 12:41 PM EDTSevere Thunderstorm WarningBUFCattaraugus34 min
Jun 9, 12:46 PM EDTSpecial Marine WarningBUF89 min
Jun 9, 1:42 PM EDTSevere Thunderstorm WarningBUFCattaraugus48 min
Jun 9, 2:42 PM EDTSpecial Marine WarningBUF2 hr
Jun 9, 3:44 PM EDTSevere Thunderstorm WarningBUFJefferson76 min
Jun 9, 3:52 PM EDTSpecial Marine WarningBUF53 min
Jun 9, 4:23 PM EDTSpecial Marine WarningBUF97 min
Jun 9, 4:37 PM EDTSpecial Marine WarningBUF83 min
Jun 9, 5:06 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis69 min
Jun 9, 5:09 PM EDTSevere Thunderstorm WarningBUFOrleans66 min
Jun 9, 5:50 PM EDTSpecial Marine WarningBUF55 min
Jun 9, 5:57 PM EDTSpecial Marine WarningBUF63 min
Jun 9, 5:58 PM EDTSpecial Marine WarningBUF47 min
Jun 9, 6:07 PM EDTSevere Thunderstorm WarningBUFOswego53 min
Jun 9, 6:19 PM EDTSevere Thunderstorm WarningBUFGenesee56 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.