Alert archive / New York / Tornado Warnings in 2016

Tornado Warning 4, NWS Buffalo, NY

September 17, 2016Cattaraugus County, New York

NWS Buffalo, NY issued this tornado warning at Sep 17, 2016, 7:00 PM EDT for Cattaraugus County, New York. It was in force for 30 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: Sep 17, 2016, 7:00 PM EDT (23:00 UTC)
Expired: Sep 17, 2016, 7:30 PM EDT
In force: 30 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 99 km from the middle of the area, began a volume at 23:01 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, 11.0 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-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: 48 J/kg
Mixed-layer CIN: -304 J/kg
Mixed-layer LCL: 980 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

111 
WFUS51 KBUF 172300
TORBUF
NYC009-172330-
/O.NEW.KBUF.TO.W.0004.160917T2300Z-160917T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
700 PM EDT SAT SEP 17 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...

* UNTIL 730 PM EDT.

* AT 700 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER ALLEGANY STATE PARK...MOVING NORTHEAST AT
  35 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE
           DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  OLEAN...ALLEGANY STATE PARK...ALLEGANY...ST. BONAVENTURE...
  CARROLLTON...HUMPHREY...LIMESTONE AND VANDALIA.

THIS INCLUDES INTERSTATE 86 BETWEEN EXITS 23 AND 26.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4200 7885 4206 7883 4222 7852 4210 7841
      4200 7863
TIME...MOT...LOC 2300Z 240DEG 32KT 4203 7874 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

HIBBERT

2 follow-up statements

182 
WWUS51 KBUF 172322
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
722 PM EDT SAT SEP 17 2016

NYC009-172330-
/O.CON.KBUF.TO.W.0004.000000T0000Z-160917T2330Z/
CATTARAUGUS NY-
722 PM EDT SAT SEP 17 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN CATTARAUGUS COUNTY...
    
AT 721 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ALLEGANY...OR 7 MILES WEST OF OLEAN...MOVING
NORTHEAST AT 30 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE
         IS LIKELY. 

LOCATIONS IMPACTED INCLUDE...
OLEAN...ALLEGANY...ST. BONAVENTURE...HUMPHREY AND VANDALIA. 

THIS INCLUDES INTERSTATE 86 BETWEEN EXITS 24 AND 26.
 
LAT...LON 4207 7860 4216 7863 4222 7852 4210 7841
      4204 7854
TIME...MOT...LOC 2321Z 235DEG 27KT 4211 7857 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

HIBBERT

236 
WWUS51 KBUF 172329
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
729 PM EDT SAT SEP 17 2016

NYC009-172338-
/O.EXP.KBUF.TO.W.0004.000000T0000Z-160917T2330Z/
CATTARAUGUS NY-
729 PM EDT SAT SEP 17 2016

...THE TORNADO WARNING FOR SOUTHEASTERN CATTARAUGUS COUNTY WILL
EXPIRE AT 730 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4207 7860 4216 7863 4222 7852 4210 7841
      4204 7854
TIME...MOT...LOC 2326Z 240DEG 32KT 4211 7857 

$$

HIBBERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 16, 10:21 PM EDT	Beach Hazards Statement	BUF	Jefferson	25 hr
Sep 17, 4:48 AM EDT	Small Craft Advisory	BUF		26 hr
Sep 17, 11:30 AM EDT	Special Weather Statement	BUF	Chautauqua	45 min
Sep 17, 4:36 PM EDT	Special Marine Warning	BUF		54 min
Sep 17, 5:22 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	38 min
Sep 17, 5:28 PM EDT	Special Marine Warning	BUF		62 min
Sep 17, 6:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	45 min
Sep 17, 6:13 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	47 min
Sep 17, 6:36 PM EDT	Tornado Warning	BUF	Cattaraugus	24 min
Sep 17, 6:37 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans	53 min
Sep 17, 6:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Wyoming	48 min
Sep 17, 6:56 PM EDT	Special Marine Warning	BUF		94 min
Sep 17, 7:30 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	60 min
Sep 17, 7:50 PM EDT	Special Marine Warning	BUF		55 min

Nearby

Tornado Warnings in New York, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.