Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 38, NWS Buffalo, NY

July 26, 2012Genesee County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2012, 3:32 AM EDT for Genesee County, Wyoming County, New York. It was in force for 43 min. 1 report 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, 3:32 AM EDT (07:32 UTC)
Expired
Jul 26, 2012, 4:15 AM EDT
In force
43 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Genesee County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 50 km from the middle of the area, began a volume at 07:35 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, 3:42 AM EDTTSTM WND DMGAttica, NYTREE LIMBS DOWN ON ROUTE 238

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, 7.5 hours before the alert went out and 319 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°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.

476 
WUUS51 KBUF 260732
SVRBUF
NYC037-121-260815-
/O.NEW.KBUF.SV.W.0038.120726T0732Z-120726T0815Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 415 AM EDT

* AT 326 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 OAKFIELD TO 22 MILES WEST OF ARCADE...AND MOVING EAST AT 60   
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  ALEXANDER...
  ATTICA...
  COWLESVILLE...
  STRYKERSVILLE...
  JAVA...
  BYRON...
  LE ROY...
  WARSAW...
  BLISS...

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 4313 7847 4313 7800 4308 7793 4304 7795
      4304 7791 4258 7804 4257 7805 4253 7806
      4252 7846
TIME...MOT...LOC 0731Z 282DEG 52KT 4302 7823 4262 7874

$$

HITCHCOCK
2 follow-up statements
878 
WWUS51 KBUF 260748
SVSBUF

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

NYC037-121-260815-
/O.CON.KBUF.SV.W.0038.000000T0000Z-120726T0815Z/
GENESEE NY-WYOMING NY-
348 AM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM EDT
FOR WYOMING AND EASTERN GENESEE 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 LE ROY TO JAVA CENTER...MOVING EAST AT 60 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  PAVILION...
  WARSAW...
  BLISS...
  PIKE...
  GAINESVILLE...
  SILVER SPRINGS...

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 4252 7846 4275 7847 4309 7805 4305 7794
      4304 7795 4304 7791 4253 7806
TIME...MOT...LOC 0748Z 282DEG 52KT 4297 7790 4262 7838

$$

HITCHCOCK
543 
WWUS51 KBUF 260816
SVSBUF

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

NYC037-121-260826-
/O.EXP.KBUF.SV.W.0038.000000T0000Z-120726T0815Z/
GENESEE NY-WYOMING NY-
416 AM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR WYOMING AND EASTERN GENESEE
COUNTIES HAS EXPIRED...

AT 416 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA 
AND WEAKENED...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4252 7846 4275 7847 4309 7805 4305 7794
      4304 7795 4304 7791 4253 7806
TIME...MOT...LOC 0748Z 282DEG 52KT 4296 7790 4261 7838

$$

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, 3:20 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie55 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.