Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 4, NWS Buffalo, NY

January 17, 20127 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jan 17, 2012, 6:11 PM EST for 7 counties in New York. It was in force for 34 min. 11 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
Jan 17, 2012, 6:11 PM EST (23:11 UTC)
Expired
Jan 17, 2012, 6:45 PM EST
In force
34 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Orleans County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 51 km from the middle of the area, began a volume at 23:13 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
Jan 17, 6:15 PM ESTTSTM WND DMGAlden, NYROOF OFF GARAGE...BLOWN INTO A FIELD 100 FEET...8 NW ALDEN.
Jan 17, 6:20 PM ESTTSTM WND DMGDarien, NYTREES AND POWERLINES DOWN
Jan 17, 6:20 PM ESTTSTM WND DMGPembroke, NYTREES AND POWERLINES DOWN
Jan 17, 6:26 PM ESTTSTM WND DMGOakfield, NYTREES AND POWERLINES DOWN
Jan 17, 6:29 PM ESTTSTM WND DMGBennington, NYTREES AND POWERLINES DOWN
Jan 17, 6:34 PM ESTTSTM WND DMGJava Center, NYTREES AND POWERLINES DOWN
Jan 17, 6:40 PM ESTTSTM WND DMGByron, NYTREES AND POWERLINES DOWN
Jan 17, 6:43 PM ESTTSTM WND DMGLe Roy, NYTREES AND POWERLINES DOWN
Jan 17, 6:45 PM ESTTSTM WND DMGAlexander, NYTREES BLOWN DOWN.
Jan 17, 6:45 PM ESTTSTM WND DMGLe Roy, NYTREES AND WIRES DOWN.
Jan 17, 6:51 PM ESTTSTM WND DMGCaledonia, NYMETAL SHED BLOWN OVER

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.2 hours before the alert went out and 48 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 2012-01-17Temperature 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°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 2012-01-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
479 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
321 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.

176 
WUUS51 KBUF 172311
SVRBUF
NYC029-037-051-055-063-073-121-172345-
/O.NEW.KBUF.SV.W.0004.120117T2311Z-120117T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
611 PM EST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ERIE COUNTY IN WESTERN NEW YORK
  GENESEE COUNTY IN WESTERN NEW YORK
  WESTERN LIVINGSTON COUNTY IN WESTERN NEW YORK
  WEST CENTRAL MONROE COUNTY IN WESTERN NEW YORK
  SOUTHEASTERN NIAGARA COUNTY IN WESTERN NEW YORK
  SOUTHERN ORLEANS COUNTY IN WESTERN NEW YORK
  WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 645 PM EST

* AT 609 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 11 MILES NORTH OF AKRON TO 14 MILES WEST OF
  CHAFFEE...OR ALONG A LINE EXTENDING FROM 7 MILES SOUTHWEST OF
  MEDINA TO 13 MILES SOUTH OF HAMBURG...AND MOVING EAST AT 85 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  BATAVIA...
  ATTICA...
  VARYSBURG...
  PAVILION...
  PORTAGEVILLE...
  PERRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4322 7773 4255 7792 4257 7867 4318 7849
TIME...MOT...LOC 2311Z 262DEG 72KT 4318 7845 4255 7869

$$

WOOD
2 follow-up statements
468 
WWUS51 KBUF 172337
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
637 PM EST TUE JAN 17 2012

NYC029-037-051-055-063-073-121-172345-
/O.CON.KBUF.SV.W.0004.000000T0000Z-120117T2345Z/
GENESEE NY-LIVINGSTON NY-WYOMING NY-NIAGARA NY-ORLEANS NY-MONROE NY-
ERIE NY-
637 PM EST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EST
FOR EASTERN ERIE...WEST CENTRAL MONROE...SOUTHERN ORLEANS...
SOUTHEASTERN NIAGARA...WYOMING...WESTERN LIVINGSTON AND GENESEE
COUNTIES...

AT 634 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 9 MILES WEST OF SPENCERPORT TO JAVA
CENTER...OR ALONG A LINE EXTENDING FROM BROCKPORT TO 19 MILES
SOUTHEAST OF EAST AURORA...MOVING EAST AT 70 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  BROCKPORT...
  CHURCHVILLE...
  BATAVIA...
  YORK...
  PERRY...

LAT...LON 4322 7773 4255 7792 4257 7867 4318 7850
TIME...MOT...LOC 2336Z 262DEG 72KT 4321 7793 4260 7828

$$

WOOD
578 
WWUS51 KBUF 172347
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
647 PM EST TUE JAN 17 2012

NYC029-037-051-055-063-073-121-172356-
/O.EXP.KBUF.SV.W.0004.000000T0000Z-120117T2345Z/
GENESEE NY-LIVINGSTON NY-WYOMING NY-NIAGARA NY-ORLEANS NY-MONROE NY-
ERIE NY-
647 PM EST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ERIE...WEST CENTRAL
MONROE...SOUTHERN ORLEANS...SOUTHEASTERN NIAGARA...WYOMING...WESTERN
LIVINGSTON AND GENESEE COUNTIES HAS EXPIRED...

AT 646 PM EST 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.

ADDITIONAL SEVERE THUNDERSTORM WARNINGS ARE IN EFFECT FOR PORTIONS 
OF EASTERN GENESEE...EASTERN WYOMING...LIVINGSTON...AND MONROE 
COUNTIES. 

LAT...LON 4322 7773 4255 7792 4257 7867 4318 7850
TIME...MOT...LOC 2337Z 262DEG 72KT 4320 7789 4259 7825

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 4:02 AM ESTLake Effect Snow WatchBUFCattaraugus, Chautauqua, Erie, Lewis, Oswego, Wyoming11 hr
Jan 17, 4:05 AM ESTGale WarningBUF30 hr
Jan 17, 4:05 AM ESTSmall Craft AdvisoryBUF6 hr
Jan 17, 4:15 AM ESTWind AdvisoryBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more6 hr
Jan 17, 9:57 AM ESTHigh Wind WarningBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more16 hr
Jan 17, 3:06 PM ESTLake Effect Snow AdvisoryBUFCattaraugus, Cayuga, Chautauqua, Erie, Lewis, Oswego and 2 more19 hr
Jan 17, 5:04 PM ESTSpecial Marine WarningBUF41 min
Jan 17, 5:08 PM ESTSevere Thunderstorm WarningBUFChautauqua37 min
Jan 17, 5:24 PM ESTSpecial Marine WarningBUF51 min
Jan 17, 5:36 PM ESTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie, Wyoming39 min
Jan 17, 5:42 PM ESTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans, Wyoming33 min
Jan 17, 6:15 PM ESTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Livingston, Wyoming30 min
Jan 17, 6:43 PM ESTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Wyoming47 min
Jan 17, 6:45 PM ESTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston, Wyoming45 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.