Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 43, NWS Buffalo, NY

June 8, 2011Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2011, 10:52 PM EDT for Ontario County, New York. It was in force for 25 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, 10:52 PM EDT (02:52 UTC)
Expired
Jun 8, 2011, 11:17 PM EDT
In force
25 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Ontario County, NY

The radar

The Binghamton radar (KBGM), 120 km from the middle of the area, began a volume at 02:51 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.9 hours before the alert went out and 130 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 2011-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1674 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 2011-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
1674 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1692 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
133 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.

680 
WUUS51 KBUF 090252
SVRBUF
NYC069-090330-
/O.NEW.KBUF.SV.W.0043.110609T0252Z-110609T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1052 PM EDT WED JUN 8 2011

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ONTARIO COUNTY IN WESTERN NEW YORK

* UNTIL 1130 PM EDT

* AT 1051 PM 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 NEAR
  CLIFTON SPRINGS...OR NEAR CANANDAIGUA...AND MOVING EAST AT 30 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  CLIFTON SPRINGS...
  PHELPS...
  GENEVA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4285 7734 4296 7734 4302 7696 4301 7695
      4287 7695 4286 7697 4281 7697
TIME...MOT...LOC 0252Z 273DEG 26KT 4294 7720

$$

HITCHCOCK
2 follow-up statements
950 
WWUS51 KBUF 090308
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1108 PM EDT WED JUN 8 2011

NYC069-090330-
/O.CON.KBUF.SV.W.0043.000000T0000Z-110609T0330Z/
ONTARIO NY-
1108 PM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT 
FOR EASTERN ONTARIO COUNTY...

AT 1105 PM 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 GENEVA...MOVING EAST AT 30 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  GENEVA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4283 7718 4293 7716 4297 7696 4287 7695
      4286 7697 4281 7697
TIME...MOT...LOC 0308Z 277DEG 27KT 4289 7703

$$

HITCHCOCK
348 
WWUS51 KBUF 090317
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1117 PM EDT WED JUN 8 2011

NYC069-090327-
/O.CAN.KBUF.SV.W.0043.000000T0000Z-110609T0330Z/
ONTARIO NY-
1117 PM EDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ONTARIO COUNTY IS
CANCELLED...

AT 1117 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

LAT...LON 4283 7718 4293 7716 4297 7696 4287 7695
      4286 7697 4281 7697
TIME...MOT...LOC 0317Z 277DEG 27KT 4288 7694

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 8:39 PM EDTSpecial Marine WarningBUF64 min
Jun 8, 8:43 PM EDTSpecial Marine WarningBUF62 min
Jun 8, 8:53 PM EDTSevere Thunderstorm WarningBUFJefferson52 min
Jun 8, 9:13 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis62 min
Jun 8, 9:32 PM EDTSevere Thunderstorm WarningBUFLewis, Oswego43 min
Jun 8, 10:10 PM EDTSevere Thunderstorm WarningBUFWayne17 min
Jun 9, 3:59 PM EDTSpecial Marine WarningBUF61 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.