Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 76, NWS Buffalo, NY

September 8, 20124 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 8, 2012, 9:12 AM EDT for 4 counties in New York. It was in force for 63 min. 15 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
Sep 8, 2012, 9:12 AM EDT (13:12 UTC)
Expired
Sep 8, 2012, 10:15 AM EDT
In force
63 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

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

The radar

The Buffalo radar (KBUF), 28 km from the middle of the area, began a volume at 13:12 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
Sep 8, 9:18 AM EDTMARINE TSTM WIND 56Dunkirk, NY
Sep 8, 9:25 AM EDTTSTM WND DMGGrand Island, NYTREES DOWN.
Sep 8, 9:25 AM EDTTSTM WND DMGLewiston, NYTREE DOWN ON LOWER RIVER ROAD
Sep 8, 9:30 AM EDTTSTM WND DMGSanborn, NYTREES AND WIRES DOWN ON SAUNDERS SETTLEMENT ROAD
Sep 8, 9:30 AM EDTTSTM WND DMGWilson, NYPOLE SNAPPED AND WIRES DOWN
Sep 8, 9:35 AM EDTTSTM WND DMGDepew, NYLARGE TREE DOWN ON E RIVER ROAD
Sep 8, 9:36 AM EDTTSTM WND DMGBuffalo, NYTWO BUILDINGS DAMAGED.
Sep 8, 9:36 AM EDTTSTM WND DMGKenmore, NYTREES DOWN ON STILLWELL AVE
Sep 8, 9:45 AM EDTTSTM WND DMGNewfane, NYTREES AND WIRES DOWN ON DRAKE SETTLEMENT ROAD
Sep 8, 9:49 AM EDTTSTM WND DMGBuffalo, NYERIE COUNTY EM REPORTED 20 TO 30 LARGE TREES DOWN IN CHEEKTOWAGA TOWN PARK.
Sep 8, 9:59 AM EDTTSTM WND DMGNewfane, NYTREE DOWN COOMER AND JACQUES RD
Sep 8, 10:00 AM EDTTSTM WND DMGEast Aurora, NYTREES DOWN AND SHED BLOWN OVER.
Sep 8, 10:05 AM EDTTSTM WND DMG1 Nw Marilla, NYTRAILER TOPPLED AND MULTIPLE TREES AND WIRES DOWN AT PARKER AND TWO ROD ROADS
Sep 8, 10:13 AM EDTTSTM WND DMGMiddleport, NYWIRES DOWN
Sep 8, 10:15 AM EDTTSTM WND DMGAppleton, NYTREES AND WIRES 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 12:00Z, 1.2 hours before the alert went out and 281 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 12:00Z on 2012-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2012-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
76 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
700 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

419 
WUUS51 KBUF 081312
SVRBUF
NYC009-013-029-063-081415-
/O.NEW.KBUF.SV.W.0076.120908T1312Z-120908T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
912 AM EDT SAT SEP 8 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
  ERIE COUNTY IN WESTERN NEW YORK
  NIAGARA COUNTY IN WESTERN NEW YORK

* UNTIL 1015 AM EDT

* AT 908 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 8 MILES NORTH OF YOUNGSTOWN TO DUNKIRK...AND MOVING EAST AT 30 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  GRAND ISLAND...
  SANBORN...
  DERBY...
  PENDLETON...
  ATHOL SPRINGS...
  HAMBURG...
  WEST SENECA...
  ORCHARD PARK...
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4246 7943 4250 7936 4256 7916 4269 7907
      4279 7886 4294 7892 4300 7903 4306 7901
      4308 7908 4314 7905 4327 7907 4337 7863
      4338 7847 4254 7848 4237 7870 4237 7914
      4242 7944
TIME...MOT...LOC 1311Z 273DEG 26KT 4335 7896 4249 7932

$$

THOMAS
2 follow-up statements
448 
WWUS51 KBUF 081344
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
944 AM EDT SAT SEP 8 2012

NYC013-081354-
/O.CAN.KBUF.SV.W.0076.000000T0000Z-120908T1415Z/
CHAUTAUQUA NY-
944 AM EDT SAT SEP 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHAUTAUQUA COUNTY
IS CANCELLED...

LAT...LON 4237 7906 4250 7906 4271 7894 4279 7886
      4295 7888 4323 7882 4329 7886 4337 7863
      4338 7847 4254 7848 4237 7870
TIME...MOT...LOC 1344Z 273DEG 26KT 4334 7863 4248 7900

$$

NYC009-029-063-081415-
/O.CON.KBUF.SV.W.0076.000000T0000Z-120908T1415Z/
CATTARAUGUS NY-NIAGARA NY-ERIE NY-
944 AM EDT SAT SEP 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR ERIE...EASTERN NIAGARA AND NORTHWESTERN CATTARAUGUS COUNTIES...

AT 940 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 OLCOTT TO PERRYSBURG...OR ALONG A LINE EXTENDING FROM
12 MILES NORTH OF LOCKPORT TO 15 MILES EAST OF FREDONIA...MOVING EAST
AT 30 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  COLLINS...
  WEST SENECA...
  THIRTY MILE POINT...
  OTTO...
  COLDEN...
  ALDEN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4237 7906 4250 7906 4271 7894 4279 7886
      4295 7888 4323 7882 4329 7886 4337 7863
      4338 7847 4254 7848 4237 7870
TIME...MOT...LOC 1344Z 273DEG 26KT 4334 7863 4248 7900

$$

JJR
883 
WWUS51 KBUF 081415
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1015 AM EDT SAT SEP 8 2012

NYC009-029-063-081422-
/O.EXP.KBUF.SV.W.0076.000000T0000Z-120908T1415Z/
CATTARAUGUS NY-NIAGARA NY-ERIE NY-
1015 AM EDT SAT SEP 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR ERIE...EASTERN NIAGARA AND
NORTHWESTERN CATTARAUGUS COUNTIES WILL EXPIRE AT 1015 AM EDT...

A SEPARATE SEVERE THUNDERSTORM WARNING CONTINUES FOR PORTIONS OF 
SOUTHEASTERN ERIE COUNTY AND CATTARAUGUS COUNTIES. 

AT 1012 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM EDT
SATURDAY AFTERNOON FOR WESTERN NEW YORK.

LAT...LON 4237 7906 4250 7906 4271 7894 4279 7886
      4295 7888 4323 7882 4329 7886 4337 7863
      4338 7847 4254 7848 4237 7870
TIME...MOT...LOC 1412Z 273DEG 26KT 4347 7828 4301 7841

$$

THOMAS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 8:45 AM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua, Erie, Niagara, Orleans90 min
Sep 8, 8:59 AM EDTSpecial Marine WarningBUF64 min
Sep 8, 9:10 AM EDTSpecial Marine WarningBUF95 min
Sep 8, 9:51 AM EDTSevere Thunderstorm WarningBUFGenesee, Monroe, Orleans, Wyoming54 min
Sep 8, 10:05 AM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Erie, Livingston, Wyoming55 min
Sep 8, 10:33 AM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Orleans, Wayne and 1 more57 min
Sep 8, 10:40 AM EDTSpecial Marine WarningBUF65 min
Sep 8, 10:55 AM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Ontario, Wyoming80 min
Sep 8, 11:20 AM EDTSevere Thunderstorm WarningBUFCayuga, Livingston, Monroe, Ontario, Oswego, Wayne70 min
Sep 8, 11:49 AM EDTSpecial Marine WarningBUF86 min
Sep 8, 12:09 PM EDTSevere Thunderstorm WarningBUFCayuga, Jefferson, Oswego66 min
Sep 8, 12:47 PM EDTSpecial Marine WarningBUF118 min
Sep 8, 1:05 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego55 min
Sep 8, 1:47 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis58 min
Sep 8, 4:10 PM EDTSpecial Weather StatementBUFErie50 min
Sep 8, 5:15 PM EDTSpecial Marine WarningBUF50 min
Sep 8, 5:31 PM EDTSpecial Marine WarningBUF44 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.