Alert archive / New York / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 7, NWS Buffalo, NY

May 11, 2003Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 11, 2003, 2:54 PM EDT for Monroe County, New York. It was in force for 51 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 11, 2003, 2:54 PM EDT (18:54 UTC)
Expired
May 11, 2003, 3:45 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 18:56 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 11, 11:45 AM EDTTornado WatchSPC5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.9 hours before the alert went out and 87 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 2003-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 281 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 2003-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939587897117Sfc1 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
281 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

282 
WUUS51 KBUF 111854
SVRBUF
NYC055-111945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
253 PM EDT SUN MAY 11 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 345 PM EDT

* AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM NEAR GATES AND CHILI...MOVING NORTHEAST AT 20 
MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BRIGHTON AT 255 PM EDT
  ROCHESTER AND GREECE AT 300 PM EDT
  IRONDEQUOIT AT 305 PM EDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT SUNDAY AFTERNOON
FOR WESTERN NEW YORK. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
700 PM EDT SUNDAY EVENING FOR WESTERN NEW YORK.

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 7785 4302 7768 4319 7739 4326 7761

$$

SFM

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:10 AM EDTSpecial Marine WarningBUF65 min
May 11, 1:34 PM EDTSpecial Marine WarningBUF86 min
May 11, 1:46 PM EDTSevere Thunderstorm WarningBUFGenesee44 min
May 11, 2:11 PM EDTSevere Thunderstorm WarningBUFOrleans49 min
May 11, 2:53 PM EDTSpecial Marine WarningBUF82 min
May 11, 4:09 PM EDTSpecial Marine WarningBUF96 min
May 11, 4:31 PM EDTSevere Thunderstorm WarningBUFOswego59 min
May 11, 4:39 PM EDTSpecial Marine WarningBUF96 min
May 11, 5:24 PM EDTSevere Thunderstorm WarningBUFJefferson51 min
May 11, 5:33 PM EDTSevere Thunderstorm WarningBUFOswego42 min
May 11, 5:39 PM EDTSpecial Marine WarningBUF96 min
May 11, 5:43 PM EDTSevere Thunderstorm WarningBUFLewis62 min

Nearby

Severe Thunderstorm Warnings in New York, 2003Every severe thunderstorm warning in 2003

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.