Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 106, NWS Buffalo, NY

November 14, 2011Allegany County, Cattaraugus County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Nov 14, 2011, 6:57 PM EST for Allegany County, Cattaraugus County, New York. It was in force for 63 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: Nov 14, 2011, 6:57 PM EST (23:57 UTC)
Expired: Nov 14, 2011, 8:00 PM EST
In force: 63 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Allegany County, NY, Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 23:58 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

Time	Report	Where	Remark
Nov 14, 7:26 PM EST	TSTM WND DMG	Friendship, NY	SEVERAL POWERLINES DOWN
Nov 14, 7:32 PM EST	TSTM WND DMG	Bolivar, NY	POWERLINES DOWN ACROSS ROUTE 417. RELAYED BY WIVB-TV.
Nov 14, 7:40 PM EST	TSTM WND DMG	Wellsville, NY	SEVERAL TREES DOWN

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 12.0 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

828 
WUUS51 KBUF 142357
SVRBUF
NYC003-009-150100-
/O.NEW.KBUF.SV.W.0106.111114T2357Z-111115T0100Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEGANY COUNTY IN WESTERN NEW YORK
  CATTARAUGUS COUNTY IN WESTERN NEW YORK

* UNTIL 800 PM EST

* AT 654 PM EST...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 7 MILES NORTHWEST OF SALAMANCA TO 12 MILES SOUTHWEST OF       
  ALLEGANY PARK...AND MOVING EAST AT 60 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  ASHFORD...
  FRANKLINVILLE...
  ST. BONAVENTURE...
  RUSHFORD...
  BELFAST...
  WELLSVILLE...
  ALFRED...
  WHITESVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. 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 4200 7906 4202 7906 4238 7876 4240 7813
      4237 7773 4199 7776
TIME...MOT...LOC 2357Z 270DEG 53KT 4225 7873 4200 7894

$$

HITCHCOCK

2 follow-up statements

157 
WWUS51 KBUF 150032
SVSBUF

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

NYC009-150039-
/O.CAN.KBUF.SV.W.0106.000000T0000Z-111115T0100Z/
CATTARAUGUS NY-
732 PM EST MON NOV 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR CATTARAUGUS COUNTY IS
CANCELLED...

LAT...LON 4199 7776 4200 7831 4239 7831 4240 7813
      4237 7774 4237 7773 4217 7775
TIME...MOT...LOC 0029Z 180DEG 0KT 4220 7906 4205 7873

$$

NYC003-150100-
/O.CON.KBUF.SV.W.0106.000000T0000Z-111115T0100Z/
ALLEGANY NY-
732 PM EST MON NOV 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EST
FOR ALLEGANY COUNTY...

AT 726 PM EST...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 15 MILES NORTHEAST OF CUBA TO 15 MILES SOUTH OF CUBA. 
THESE STORMS WERE MOVING EAST AT 50 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  BOLIVAR...
  WELLSVILLE...

LAT...LON 4199 7776 4200 7831 4239 7831 4240 7813
      4237 7774 4237 7773 4217 7775
TIME...MOT...LOC 0029Z 180DEG 0KT 4220 7906 4205 7873

$$

WOOD

001 
WWUS51 KBUF 150057
SVSBUF

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

NYC003-150107-
/O.EXP.KBUF.SV.W.0106.000000T0000Z-111115T0100Z/
ALLEGANY NY-
757 PM EST MON NOV 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR ALLEGANY COUNTY WILL EXPIRE AT
800 PM EST...

LAT...LON 4199 7776 4200 7831 4239 7831 4240 7813
      4237 7774 4237 7773 4217 7775
TIME...MOT...LOC 0057Z 180DEG 0KT 4220 7906 4205 7873

$$

WOOD

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 14, 4:17 PM EST	Special Marine Warning	BUF		88 min
Nov 14, 4:41 PM EST	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	64 min
Nov 14, 4:47 PM EST	Tornado Warning	BUF	Cattaraugus, Chautauqua, Erie	43 min
Nov 14, 4:54 PM EST	Tornado Warning	BUF	Chautauqua	36 min
Nov 14, 5:27 PM EST	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	36 min
Nov 14, 5:30 PM EST	Tornado Warning	BUF	Cattaraugus, Chautauqua	30 min
Nov 14, 5:46 PM EST	Severe Thunderstorm Warning	BUF	Chautauqua	59 min
Nov 14, 5:59 PM EST	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua	61 min
Nov 14, 6:06 PM EST	Tornado Warning	BUF	Cattaraugus	24 min
Nov 14, 6:38 PM EST	Tornado Warning	BUF	Cattaraugus, Chautauqua	37 min
Nov 14, 6:40 PM EST	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	20 min

Nearby

Severe Thunderstorm Warnings in New York, 2011 Every 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.