Alert archive / New York / Tornado Warnings in 2013

Tornado Warning 1, NWS Buffalo, NY

May 10, 2013Chautauqua County, New York

NWS Buffalo, NY issued this tornado warning at May 10, 2013, 4:39 PM EDT for Chautauqua County, New York. It was in force for 36 min. 2 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
May 10, 2013, 4:39 PM EDT (20:39 UTC)
Expired
May 10, 2013, 5:15 PM EDT
In force
36 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 79 km from the middle of the area, began a volume at 20:39 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

TimeReportWhereRemark
May 10, 4:45 PM EDTFUNNEL CLOUD1 N Hartfield, NY
May 10, 5:04 PM EDTHAIL 1Westfield, NY

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, 8.7 hours before the alert went out and 79 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 2013-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2013-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2256 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
105 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.

679 
WFUS51 KBUF 102039
TORBUF
NYC013-102115-
/O.NEW.KBUF.TO.W.0001.130510T2039Z-130510T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
439 PM EDT FRI MAY 10 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITY OF FREDONIA...

* UNTIL 515 PM EDT

* AT 435 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTH OF
  WESTFIELD...OR 17 MILES SOUTHWEST OF FREDONIA...MOVING NORTHEAST AT
  35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SILVER CREEK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4256 7917 4236 7911 4223 7962 4229 7965
TIME...MOT...LOC 2039Z 240DEG 31KT 4230 7953

$$

RSH
2 follow-up statements
828 
WWUS51 KBUF 102057
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
457 PM EDT FRI MAY 10 2013

NYC013-102115-
/O.CON.KBUF.TO.W.0001.000000T0000Z-130510T2115Z/
CHAUTAUQUA NY-
457 PM EDT FRI MAY 10 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR NORTH
CENTRAL CHAUTAUQUA COUNTY...

AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED NEAR 
STOCKTON...OR 6 MILES SOUTHWEST OF FREDONIA...MOVING NORTHEAST AT 35 
MPH.

THE TORNADO SOME LOCATIONS IN THE WARNING INCLUDE...
  ARKWRIGHT...
  FORESTVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4229 7940 4239 7947 4256 7917 4236 7911
TIME...MOT...LOC 2057Z 240DEG 31KT 4238 7935

$$

JJR
265 
WWUS51 KBUF 102106
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
506 PM EDT FRI MAY 10 2013

NYC013-102115-
/O.CAN.KBUF.TO.W.0001.000000T0000Z-130510T2115Z/
CHAUTAUQUA NY-
506 PM EDT FRI MAY 10 2013

...THE TORNADO WARNING FOR NORTH CENTRAL CHAUTAUQUA COUNTY IS
CANCELLED...

AT 505 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAD WEAKENED...THUS 
THE TORNADO WARNING HAS BEEN CANCELLED. THIS STATED...A SEVERE 
THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR THIS STORM.

LAT...LON 4229 7940 4239 7947 4256 7917 4236 7911
TIME...MOT...LOC 2105Z 240DEG 31KT 4241 7927

$$

JJR

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 2:48 PM EDTSpecial Weather StatementBUFCattaraugus42 min
May 10, 3:47 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus43 min
May 10, 4:06 PM EDTSpecial Marine WarningBUF54 min
May 10, 4:21 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Orleans, Wyoming54 min
May 10, 4:22 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua38 min
May 10, 4:27 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Wyoming63 min
May 10, 4:33 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie57 min
May 10, 4:52 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus53 min
May 10, 5:06 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans24 min
May 10, 5:29 PM EDTSevere Thunderstorm WarningBUFCattaraugus46 min
May 10, 5:34 PM EDTSpecial Marine WarningBUF26 min
May 10, 5:35 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario55 min
May 10, 5:51 PM EDTSpecial Marine WarningBUF54 min
May 10, 6:02 PM EDTSevere Thunderstorm WarningBUFCattaraugus28 min
May 10, 6:08 PM EDTAreal Flood AdvisoryBUFErie, Genesee, Niagara, Orleans3 hr
May 10, 6:21 PM EDTAreal Flood AdvisoryBUFCattaraugus, Chautauqua3 hr
May 10, 6:28 PM EDTSevere Thunderstorm WarningBUFAllegany47 min
May 10, 6:30 PM EDTSevere Thunderstorm WarningBUFCattaraugus45 min
May 10, 7:34 PM EDTSpecial Marine WarningBUF41 min
May 10, 7:38 PM EDTSpecial Weather StatementBUFOswego67 min
May 10, 7:49 PM EDTSpecial Weather StatementBUFErie, Wyoming56 min

Nearby

Tornado Warnings in New York, 2013Every tornado warning in 2013Tornadoes in 2013

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.