Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 23, NWS Buffalo, NY

June 17, 2014Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 17, 2014, 8:45 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 60 min. 1 report 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: Jun 17, 2014, 8:45 PM EDT (00:45 UTC)
Expired: Jun 17, 2014, 9:45 PM EDT
In force: 60 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), 83 km from the middle of the area, began a volume at 00:49 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.

What was reported inside it

Time	Report	Where	Remark
Jun 17, 8:46 PM EDT	TSTM WND DMG	Cassadaga, NY	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.

Issued	Product	Office	Lasted
Jun 17, 6:51 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.8 hours before the alert went out and 82 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: 518 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1708 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 369 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

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

480 
WUUS51 KBUF 180045
SVRBUF
NYC009-013-029-180145-
/O.NEW.KBUF.SV.W.0023.140618T0045Z-140618T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
845 PM EDT TUE JUN 17 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CATTARAUGUS COUNTY IN WESTERN NEW YORK
  CENTRAL CHAUTAUQUA COUNTY IN WESTERN NEW YORK
  SOUTHEASTERN ERIE COUNTY IN WESTERN NEW YORK

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 13 AND 26.

* UNTIL 945 PM EDT

* AT 845 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 5 MILES
  NORTHEAST OF CHAUTAUQUA INSTITUTE...OR 12 MILES SOUTH OF
  FREDONIA...AND MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  ASHFORD...
  FRANKLINVILLE...

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.

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

&&

LAT...LON 4218 7948 4236 7949 4262 7848 4199 7842
      4199 7851
TIME...MOT...LOC 0045Z 267DEG 44KT 4227 7936

$$

RSH

2 follow-up statements

447 
WWUS51 KBUF 180115 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
915 PM EDT TUE JUN 17 2014

NYC013-180125-
/O.CAN.KBUF.SV.W.0023.000000T0000Z-140618T0145Z/
CHAUTAUQUA NY-
915 PM EDT TUE JUN 17 2014

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 13 AND 14.

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHAUTAUQUA COUNTY IS
CANCELLED...

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

LAT...LON 4210 7905 4238 7905 4262 7848 4199 7842
      4199 7851
TIME...MOT...LOC 0115Z 267DEG 44KT 4228 7882

$$

NYC009-029-180145-
/O.CON.KBUF.SV.W.0023.000000T0000Z-140618T0145Z/
CATTARAUGUS NY-ERIE NY-
915 PM EDT TUE JUN 17 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTHEASTERN ERIE AND CATTARAUGUS COUNTIES...

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 15 AND 25.

AT 915PM 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 CATTARAUGUS...OR 13 MILES NORTHWEST OF SALAMANCA...
MOVING EAST AT 50 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  ELLICOTTVILLE...
  ASHFORD...
  FRANKLINVILLE...

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.

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

&&

LAT...LON 4210 7905 4238 7905 4262 7848 4199 7842
      4199 7851
TIME...MOT...LOC 0115Z 267DEG 44KT 4228 7882

$$

RSH

129 
WWUS51 KBUF 180146
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
946 PM EDT TUE JUN 17 2014

NYC009-029-180156-
/O.EXP.KBUF.SV.W.0023.000000T0000Z-140618T0145Z/
CATTARAUGUS NY-ERIE NY-
946 PM EDT TUE JUN 17 2014

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 15 AND 25.

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ERIE COUNTY AND 
THE WESTERN HALF OF CATTARAUGUS COUNTY HAS EXPIRED...

AT 946 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM WITH THE POSSIBLE TORNADO HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

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

LAT...LON 4210 7905 4238 7905 4262 7848 4199 7842
      4199 7851
TIME...MOT...LOC 0115Z 267DEG 44KT 4228 7882

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 8:11 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	64 min
Jun 17, 8:35 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	55 min
Jun 17, 8:46 PM EDT	Special Weather Statement	BUF	Erie, Genesee, Livingston, Ontario, Wayne, Wyoming	59 min
Jun 17, 8:58 PM EDT	Special Weather Statement	BUF	Oswego	62 min
Jun 17, 9:02 PM EDT	Special Marine Warning	BUF		58 min
Jun 17, 9:06 PM EDT	Tornado Warning	BUF	Jefferson, Lewis	39 min
Jun 17, 9:29 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	61 min
Jun 17, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	60 min
Jun 17, 9:46 PM EDT	Special Weather Statement	BUF	Livingston, Ontario, Wyoming	44 min

Nearby

Severe Thunderstorm Warnings in New York, 2014 Every severe thunderstorm warning in 2014

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.