Alert archive / New York / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 5, NWS Buffalo, NY

April 12, 2001Erie County, Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 12, 2001, 3:22 AM EDT for Erie County, Niagara County, New York. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 12, 2001, 3:22 AM EDT (07:22 UTC)
Expired
Apr 12, 2001, 4:15 AM EDT
In force
53 min
Issued by
NWS Buffalo, NY
Area
Whole counties

Counties Erie County, NY, Niagara County, NY

The radar

The Buffalo radar (KBUF), 2 km from the middle of the area, began a volume at 07:23 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 7.4 hours before the alert went out and 5 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 2001-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2001-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
105 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 120725
SVRBUF
NYC029-063-120815-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
322 AM EDT THU APR 12 2001

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ERIE COUNTY IN WESTERN NEW YORK
  THIS INCLUDES GRAND ISLAND AND THE TOWN OF TONAWANDA
  NIAGARA COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE CITIES OF...LOCKPORT...NIAGARA FALLS...NORTH
  TONAWANDA

* UNTIL 415 AM EDT

* AT 320 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER ONTARIO 10 MILES SOUTHWEST OF GRAND     
  ISLAND...MOVING NORTHEAST AT 20 MPH.  THIS STORM MAY CONTAIN LARGE 
  HAIL AND DAMAGING WINDS.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GRAND ISLAND AT 340 AM EDT
  NIAGARA FALLS AT 355 AM EDT
  SANBORN AT 410 AM EDT

MCLAUGHLIN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 2:22 AM EDTSevere Thunderstorm WarningBUFErie53 min

Nearby

Severe Thunderstorm Warnings in New York, 2001Every severe thunderstorm warning in 2001

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.