Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 34, NWS Buffalo, NY

June 8, 2011Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2011, 2:29 AM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 8, 2011, 2:29 AM EDT (06:29 UTC)
Expired
Jun 8, 2011, 3:30 AM EDT
In force
61 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), 51 km from the middle of the area, began a volume at 06:29 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 8, 1:51 AM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 6.5 hours before the alert went out and 51 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 2011-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 604 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2011-06-08The 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
604 J/kg
Mixed-layer CIN
-275 J/kg
Mixed-layer LCL
1041 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
144 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.

388 
WUUS51 KBUF 080629
SVRBUF
NYC009-013-029-080730-
/O.NEW.KBUF.SV.W.0034.110608T0629Z-110608T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
229 AM EDT WED JUN 8 2011

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 330 AM EDT

* AT 224 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 11
  MILES NORTHWEST OF ANGOLA ON THE LAKE...OR 9 MILES SOUTH OF PORT
  COLBORNE...AND MOVING SOUTHEAST AT 40 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  LAKE ERIE BEACH...
  NORTH COLLINS...
  COLLINS...
  ANGOLA...
  SILVER CREEK...
  DUNKIRK...
  PERRYSBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. 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 4241 7949 4244 7943 4246 7943 4250 7936
      4256 7916 4265 7907 4269 7907 4274 7892
      4279 7886 4282 7887 4273 7847 4273 7846
      4212 7926
TIME...MOT...LOC 0627Z 318DEG 34KT 4271 7920

$$

HITCHCOCK
3 follow-up statements
915 
WWUS51 KBUF 080659
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
259 AM EDT WED JUN 8 2011

NYC009-013-029-080730-
/O.CON.KBUF.SV.W.0034.000000T0000Z-110608T0730Z/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
259 AM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM EDT
FOR SOUTHWESTERN ERIE...NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN
CATTARAUGUS COUNTIES...

AT 252 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR DUNKIRK...MOVING SOUTHEAST AT 40 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  SOUTH DAYTON...
  CHERRY CREEK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EDT
WEDNESDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4255 7870 4212 7926 4241 7949 4244 7943
      4246 7943 4250 7936 4256 7916 4265 7907
TIME...MOT...LOC 0659Z 321DEG 35KT 4244 7920

$$

RSH
251 
WWUS51 KBUF 080715
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
315 AM EDT WED JUN 8 2011

NYC029-080725-
/O.CAN.KBUF.SV.W.0034.000000T0000Z-110608T0730Z/
ERIE NY-
315 AM EDT WED JUN 8 2011

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EDT
WEDNESDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4250 7914 4241 7888 4212 7926 4241 7949
      4244 7943
TIME...MOT...LOC 0715Z 326DEG 32KT 4232 7912

$$

NYC009-013-080730-
/O.CON.KBUF.SV.W.0034.000000T0000Z-110608T0730Z/
CATTARAUGUS NY-CHAUTAUQUA NY-
315 AM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM EDT
FOR NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN CATTARAUGUS COUNTIES...

AT 306 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR ARKWRIGHT...OR 8 MILES SOUTHEAST OF 
FREDONIA...MOVING SOUTHEAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  CHERRY CREEK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HAIL UP TO ONE INCH INCH IN DIAMETER HAS BEEN REPORTED IN DUNKIRK. 
IF YOU ARE IN THE PATH OF THIS STORM...TAKE IMMEDIATE ACTION TO 
PROTECT LIFE AND PROPERTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EDT
WEDNESDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4250 7914 4241 7888 4212 7926 4241 7949
      4244 7943
TIME...MOT...LOC 0715Z 326DEG 32KT 4232 7912

$$

RSH
399 
WWUS51 KBUF 080731
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
331 AM EDT WED JUN 8 2011

NYC009-013-080741-
/O.EXP.KBUF.SV.W.0034.000000T0000Z-110608T0730Z/
CATTARAUGUS NY-CHAUTAUQUA NY-
331 AM EDT WED JUN 8 2011

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

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EDT
WEDNESDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4250 7914 4241 7888 4212 7926 4241 7949
      4244 7943
TIME...MOT...LOC 0715Z 326DEG 32KT 4236 7904

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 2:00 AM EDTSpecial Marine WarningBUF64 min
Jun 8, 3:22 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua68 min
Jun 8, 4:26 PM EDTSpecial Marine WarningBUF51 min
Jun 8, 4:29 PM EDTSpecial Marine WarningBUF69 min
Jun 8, 4:42 PM EDTSevere Thunderstorm WarningBUFJefferson63 min
Jun 8, 5:00 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis46 min
Jun 8, 5:15 PM EDTSpecial Weather StatementBUFLewis60 min
Jun 8, 5:39 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis26 min
Jun 8, 7:44 PM EDTSpecial Marine WarningBUF72 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.