Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 37, NWS Buffalo, NY

July 26, 2012Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2012, 3:20 AM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 55 min. 3 reports 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
Jul 26, 2012, 3:20 AM EDT (07:20 UTC)
Expired
Jul 26, 2012, 4:15 AM EDT
In force
55 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 49 km from the middle of the area, began a volume at 07:21 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
Jul 26, 3:37 AM EDTMARINE TSTM WIND 40Dunkirk, NYDUNKIRK LIGHTHOUSE
Jul 26, 4:00 AM EDTTSTM WND DMGSouth Dayton, NYTREE DOWN
Jul 26, 4:05 AM EDTTSTM WND DMGLeon, NYTREES AND POWERLINES DOWN

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 7.3 hours before the alert went out and 256 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, Pittsburgh, PA at 00:00Z on 2012-07-26Temperature 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, Pittsburgh, PA at 00:00Z on 2012-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
2457 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
169 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.

207 
WUUS51 KBUF 260720
SVRBUF
NYC009-013-029-260815-
/O.NEW.KBUF.SV.W.0037.120726T0720Z-120726T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
320 AM EDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK

* UNTIL 415 AM EDT

* AT 316 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM ATHOL SPRINGS TO 18 MILES WEST OF DUNKIRK...AND MOVING        
  SOUTHEAST AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  ORCHARD PARK...
  DUNKIRK...
  SILVER CREEK...
  GOWANDA...
  COLDEN...
  SPRINGVILLE...
  EAST CONCORD...
  SARDINIA...
  OTTO...
  ASHFORD HOLLOW...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4242 7946 4246 7943 4250 7936 4256 7916
      4261 7913 4265 7907 4269 7907 4274 7892
      4279 7886 4282 7887 4273 7846 4242 7848
      4220 7879
TIME...MOT...LOC 0719Z 305DEG 39KT 4275 7886 4252 7965

$$

HITCHCOCK
2 follow-up statements
019 
WWUS51 KBUF 260750
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
350 AM EDT THU JUL 26 2012

NYC009-013-029-260815-
/O.CON.KBUF.SV.W.0037.000000T0000Z-120726T0815Z/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
350 AM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM EDT
FOR SOUTHERN ERIE...NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN
CATTARAUGUS COUNTIES...

AT 344 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM HOLLAND TO ARKWRIGHT...MOVING SOUTHEAST AT 45 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  SPRINGVILLE...
  GOWANDA...
  SARDINIA...
  ASHFORD HOLLOW...
  MACHIAS...
  LITTLE VALLEY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4242 7946 4246 7943 4250 7936 4256 7916
      4270 7885 4273 7846 4242 7848 4220 7879
TIME...MOT...LOC 0749Z 305DEG 39KT 4260 7844 4234 7923

$$

HITCHCOCK
388 
WWUS51 KBUF 260816 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
416 AM EDT THU JUL 26 2012

NYC009-013-029-260826-
/O.EXP.KBUF.SV.W.0037.000000T0000Z-120726T0815Z/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
416 AM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ERIE...NORTHEASTERN
CHAUTAUQUA AND NORTHWESTERN CATTARAUGUS COUNTIES HAS EXPIRED...

AT 416 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO 
LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4242 7946 4246 7943 4250 7936 4256 7916
      4270 7885 4273 7846 4242 7848 4220 7879
TIME...MOT...LOC 0750Z 305DEG 39KT 4259 7843 4233 7922

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 2:38 AM EDTSpecial Marine WarningBUF39 min
Jul 26, 2:53 AM EDTSevere Thunderstorm WarningBUFErie, Niagara52 min
Jul 26, 2:59 AM EDTSpecial Marine WarningBUF61 min
Jul 26, 3:11 AM EDTSpecial Marine WarningBUF64 min
Jul 26, 3:32 AM EDTSevere Thunderstorm WarningBUFGenesee, Wyoming43 min
Jul 26, 4:02 AM EDTSpecial Marine WarningBUF43 min
Jul 26, 4:27 AM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua63 min
Jul 26, 4:30 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua33 min
Jul 26, 1:07 PM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua68 min
Jul 26, 1:16 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua59 min
Jul 26, 1:37 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua38 min
Jul 26, 2:12 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus48 min
Jul 26, 2:18 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus42 min
Jul 26, 2:39 PM EDTSevere Thunderstorm WarningBUFAllegany51 min

Nearby

Severe Thunderstorm Warnings in New York, 2012Every severe thunderstorm warning in 2012

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.