Alert archive / New York / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 55, NWS Buffalo, NY

November 12, 2003Genesee County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Nov 12, 2003, 9:42 PM EST for Genesee County, New York. It was in force for 48 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
Nov 12, 2003, 9:42 PM EST (02:42 UTC)
Expired
Nov 12, 2003, 10:30 PM EST
In force
48 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Genesee County, NY

The radar

The Buffalo radar (KBUF), 39 km from the middle of the area, began a volume at 02:45 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
Nov 12, 7:20 PM ESTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.7 hours before the alert went out and 37 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 2003-11-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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 2003-11-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 square meters per square second.1939587897117136156Sfc1 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
158 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
90 kt
0-1 km storm-relative helicity
273 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 130242
SVRBUF
NYC037-130330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
941 PM EST WED NOV 12 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 1030 PM EST

* AT 935 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS OVER EASTERN ERIE COUNTY FROM 
  ALDEN TO AKRON...MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  OAKFIELD AT 950 PM EST
  BATAVIA AT 955 PM EST
  BYRON AND LE ROY AT 1005 PM EST
  BERGEN AT 1010 PM EST

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BUFFALO.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EST
WEDNESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4312 7849 4289 7847 4291 7797 4312 7794

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 7:13 PM ESTSpecial Marine WarningBUF2 hr
Nov 12, 7:18 PM ESTSevere Thunderstorm WarningBUFNiagara27 min
Nov 12, 8:02 PM ESTSpecial Marine WarningBUF58 min
Nov 12, 8:59 PM ESTSpecial Marine WarningBUF31 min
Nov 12, 8:59 PM ESTSpecial Marine WarningBUF31 min
Nov 12, 9:08 PM ESTSpecial Marine WarningBUF97 min
Nov 12, 9:19 PM ESTSevere Thunderstorm WarningBUFErie56 min
Nov 12, 9:40 PM ESTSevere Thunderstorm WarningBUFCattaraugus50 min
Nov 12, 10:01 PM ESTSevere Thunderstorm WarningBUFMonroe, Orleans59 min
Nov 12, 10:12 PM ESTSpecial Marine WarningBUF63 min
Nov 12, 10:21 PM ESTSevere Thunderstorm WarningBUFLivingston24 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.