Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 103, NWS Buffalo, NY

November 14, 2011Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Nov 14, 2011, 5:46 PM EST for Chautauqua County, New York. It was in force for 59 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
Nov 14, 2011, 5:46 PM EST (22:46 UTC)
Expired
Nov 14, 2011, 6:45 PM EST
In force
59 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 96 km from the middle of the area, began a volume at 22:49 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 12:00Z, 10.8 hours before the alert went out and 96 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 2011-11-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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 12:00Z on 2011-11-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 294 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
19 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1036 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
289 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.

563 
WUUS51 KBUF 142246
SVRBUF
NYC013-142345-
/O.NEW.KBUF.SV.W.0103.111114T2246Z-111114T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
546 PM EST MON NOV 14 2011

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 645 PM EST

* AT 540 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 18 MILES WEST OF         
  FINDLEY LAKE...AND MOVING EAST AT 65 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  RIPLEY...
  SHERMAN...
  WESTFIELD...
  FINDLEY LAKE...
  MAYVILLE...
  CHAUTAUQUA INSTITUTE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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 4227 7977 4240 7951 4247 7916 4235 7917
      4232 7915 4232 7916 4219 7915 4216 7917
      4214 7915 4199 7917 4199 7976 4200 7977
TIME...MOT...LOC 2245Z 261DEG 57KT 4217 7996

$$

HITCHCOCK
2 follow-up statements
991 
WWUS51 KBUF 142316
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
616 PM EST MON NOV 14 2011

NYC013-142345-
/O.CON.KBUF.SV.W.0103.000000T0000Z-111114T2345Z/
CHAUTAUQUA NY-
616 PM EST MON NOV 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EST
FOR SOUTHERN CHAUTAUQUA COUNTY...

AT 612 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 24 MILES WEST OF 
JAMESTOWN...MOVING EAST AT 60 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  PANAMA...
  CLYMER...
  CELORON...
  JAMESTOWN
  FALCONER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4217 7977 4224 7947 4231 7916 4219 7915
      4216 7917 4214 7915 4199 7917 4199 7976
      4200 7977
TIME...MOT...LOC 2315Z 260DEG 51KT 4205 7965

$$

ZAFF
711 
WWUS51 KBUF 142344
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
644 PM EST MON NOV 14 2011

NYC013-142354-
/O.EXP.KBUF.SV.W.0103.000000T0000Z-111114T2345Z/
CHAUTAUQUA NY-
644 PM EST MON NOV 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHAUTAUQUA COUNTY
WILL EXPIRE AT 645 PM EST...

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

LAT...LON 4217 7977 4224 7947 4231 7916 4219 7915
      4216 7917 4214 7915 4199 7917 4199 7976
      4200 7977
TIME...MOT...LOC 2344Z 260DEG 51KT 4212 7910

$$

ZAFF

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 14, 4:17 PM ESTSpecial Marine WarningBUF88 min
Nov 14, 4:41 PM ESTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie64 min
Nov 14, 4:47 PM ESTTornado WarningBUFCattaraugus, Chautauqua, Erie43 min
Nov 14, 4:54 PM ESTTornado WarningBUFChautauqua36 min
Nov 14, 5:27 PM ESTSevere Thunderstorm WarningBUFCattaraugus, Erie, Wyoming36 min
Nov 14, 5:30 PM ESTTornado WarningBUFCattaraugus, Chautauqua30 min
Nov 14, 5:59 PM ESTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua61 min
Nov 14, 6:06 PM ESTTornado WarningBUFCattaraugus24 min
Nov 14, 6:38 PM ESTTornado WarningBUFCattaraugus, Chautauqua37 min
Nov 14, 6:40 PM ESTSevere Thunderstorm WarningBUFAllegany, Livingston, Ontario20 min
Nov 14, 6:57 PM ESTSevere Thunderstorm WarningBUFAllegany, Cattaraugus63 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.