Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 85, NWS Buffalo, NY

August 24, 2011Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 24, 2011, 10:45 PM EDT for Erie County, New York. It was in force for 49 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
Aug 24, 2011, 10:45 PM EDT (02:45 UTC)
Expired
Aug 24, 2011, 11:34 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Erie County, NY

The radar

The Buffalo radar (KBUF), 8 km from the middle of the area, began a volume at 02:46 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
Aug 24, 10:47 PM EDTTSTM WND DMGBuffalo, NYTREE DOWN ON RICHMOND AVE
Aug 24, 10:50 PM EDTTSTM WND DMGAmherst, NYLARGE LIMBS DOWN
Aug 24, 11:05 PM EDTTSTM WND DMGHamburg, NYLARGE TREE DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 24, 9:18 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.8 hours before the alert went out and 9 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 2011-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 352 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, Buffalo Intl Airport, NY at 00:00Z on 2011-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 327 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
352 J/kg
Mixed-layer CIN
-345 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
327 m²/s²
0-3 km storm-relative helicity
391 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

318 
WUUS51 KBUF 250245
SVRBUF
NYC029-250345-
/O.NEW.KBUF.SV.W.0085.110825T0245Z-110825T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1045 PM EDT WED AUG 24 2011

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ERIE COUNTY IN WESTERN NEW YORK

* UNTIL 1145 PM EDT

* AT 1041 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 12 MILES WEST OF ATHOL
  SPRINGS...OR 8 MILES SOUTHEAST OF PORT COLBORNE...AND MOVING EAST
  AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  BUFFALO...
  ATHOL SPRINGS...
  LACKAWANNA...
  WEST SENECA...
  HAMBURG...
  ORCHARD PARK...
  ELMA...
  MARILLA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THIS STORM 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 4274 7895 4279 7886 4285 7887 4287 7891
      4294 7892 4300 7903 4305 7900 4305 7890
      4302 7888 4302 7884 4306 7880 4308 7847
      4287 7847 4286 7849 4253 7847 4253 7850
TIME...MOT...LOC 0244Z 271DEG 39KT 4282 7907

$$

HITCHCOCK
2 follow-up statements
519 
WWUS51 KBUF 250318
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1118 PM EDT WED AUG 24 2011

NYC029-250345-
/O.CON.KBUF.SV.W.0085.000000T0000Z-110825T0345Z/
ERIE NY-
1118 PM EDT WED AUG 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR EASTERN ERIE COUNTY...

AT 1114 PM 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 FROM 
NEAR ALDEN TO NEAR BOSTON...MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  EAST AURORA...
  WALES CENTER...
  MARILLA...
  CHAFFEE...
  HOLLAND...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THIS STORM WILL OCCUR 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 4269 7882 4307 7863 4308 7847 4288 7847
      4286 7849 4253 7847 4253 7850
TIME...MOT...LOC 0317Z 275DEG 37KT 4278 7862

$$

HITCHCOCK
076 
WWUS51 KBUF 250334
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1134 PM EDT WED AUG 24 2011

NYC029-250344-
/O.CAN.KBUF.SV.W.0085.000000T0000Z-110825T0345Z/
ERIE NY-
1134 PM EDT WED AUG 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ERIE COUNTY IS
CANCELLED...

AT 1134 PM 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 CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4269 7882 4307 7863 4308 7847 4288 7847
      4286 7849 4253 7847 4253 7850
TIME...MOT...LOC 0334Z 275DEG 37KT 4276 7838

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 9:47 PM EDTSpecial Marine WarningBUF58 min
Aug 24, 9:56 PM EDTSevere Thunderstorm WarningBUFErie, Niagara, Orleans64 min
Aug 24, 10:06 PM EDTSpecial Marine WarningBUF54 min
Aug 24, 10:21 PM EDTSpecial Marine WarningBUF54 min
Aug 24, 10:24 PM EDTSpecial Marine WarningBUF96 min
Aug 24, 10:34 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua, Erie56 min
Aug 24, 10:37 PM EDTSpecial Weather StatementBUFErie53 min
Aug 24, 10:54 PM EDTSevere Thunderstorm WarningBUFGenesee, Monroe, Orleans41 min
Aug 24, 11:33 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Livingston, Monroe, Ontario, Wayne and 1 more87 min
Aug 24, 11:38 PM EDTSpecial Marine WarningBUF52 min
Aug 24, 11:59 PM EDTSpecial Marine WarningBUF61 min
Aug 25, 12:17 AM EDTSpecial Marine WarningBUF73 min
Aug 25, 12:22 AM EDTSevere Thunderstorm WarningBUFJefferson, Oswego53 min
Aug 25, 12:27 AM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Chautauqua63 min
Aug 25, 12:42 AM EDTAreal Flood AdvisoryBUFCattaraugus, Chautauqua, Erie3 hr
Aug 25, 1:06 AM EDTSpecial Weather StatementBUFLewis54 min
Aug 25, 1:17 AM EDTSpecial Marine WarningBUF58 min
Aug 25, 1:58 AM EDTSpecial Weather StatementBUFAllegany62 min
Aug 25, 2:31 AM EDTSpecial Weather StatementBUFOntario59 min
Aug 25, 3:05 AM EDTSpecial Weather StatementBUFOswego55 min
Aug 25, 3:23 AM EDTSpecial Weather StatementBUFNiagara52 min
Aug 25, 12:12 PM EDTSpecial Weather StatementBUFOswego63 min

Nearby

Severe Thunderstorm Warnings in New York, 2011Every severe thunderstorm warning in 2011

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.