Alert archive / New York / Tornado Warnings in 2010

Tornado Warning 7, NWS Buffalo, NY

July 24, 2010Cattaraugus County, Chautauqua County, New York

NWS Buffalo, NY issued this tornado warning at Jul 24, 2010, 4:40 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 50 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
Jul 24, 2010, 4:40 PM EDT (20:40 UTC)
Expired
Jul 24, 2010, 5:30 PM EDT
In force
50 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cattaraugus County, NY, Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 75 km from the middle of the area, began a volume at 20:40 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
Jul 24, 5:23 PM EDTTSTM WND DMGRandolph, NYTREE DOWN ON HOUSE
Jul 24, 5:26 PM EDTTSTM WND DMGRandolph, NYNEAR I-86 SEVERAL TREES DOWN
Jul 24, 5:26 PM EDTTORNADO1 Wsw Randolph, NYLARGE TREES DOWN ON MAIN STREET AND ON HOMES. PARTIAL ROOF DAMAGE. GAS PUMPS BLOWN OVER AT SUGAR CREEK STORE. SEMI TRUCK TIPPED OVER.

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.

IssuedProductOfficeLasted
Jul 24, 4:14 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.7 hours before the alert went out and 73 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 2010-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 696 joules per kilogram.LCLEL10008507005003002001001 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 2010-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 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
696 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
93 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.

841 
WFUS51 KBUF 242040
TORBUF
NYC009-013-242130-
/O.NEW.KBUF.TO.W.0007.100724T2040Z-100724T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
440 PM EDT SAT JUL 24 2010

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL CATTARAUGUS COUNTY IN WESTERN NEW YORK... 
  EAST CENTRAL CHAUTAUQUA COUNTY IN WESTERN NEW YORK...

* UNTIL 530 PM EDT

* AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 30 MILES WEST OF
  SALAMANCA...OR 10 MILES NORTH OF JAMESTOWN...MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
   ELLINGTON
   CONEWANGO
   NAPOLI
   LITTLE VALLEY

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 4241 7874 4214 7871 4216 7916 4232 7918
TIME...MOT...LOC 2038Z 266DEG 34KT 4224 7928

$$

HITCHCOCK
2 follow-up statements
698 
WWUS51 KBUF 242052 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
452 PM EDT SAT JUL 24 2010

NYC009-013-242130-
/O.CON.KBUF.TO.W.0007.000000T0000Z-100724T2130Z/
CHAUTAUQUA NY-CATTARAUGUS NY-
452 PM EDT SAT JUL 24 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR WEST
CENTRAL CATTARAUGUS AND EAST CENTRAL CHAUTAUQUA COUNTIES...

AT 450 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A LARGE AND 
DESTRUCTIVE TORNADO.  THIS TORNADO WAS LOCATED NEAR ELLINGTON...OR 
10 MILES NORTHEAST OF JAMESTOWN...MOVING EAST AT 40 MPH.

THE TORNADO SOME LOCATIONS IN THE WARNING INCLUDE...
  CONEWANGO
  EAST RANDOLPH
  NAPOLI
  LITTLE VALLEY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS 
STORM IS CAPABLE OF PRODUCING STRONG TORNADOES. IF YOU ARE IN THE 
PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!

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 4241 7874 4214 7871 4216 7916 4232 7918
TIME...MOT...LOC 2052Z 269DEG 33KT 4223 7911

$$

HITCHCOCK
031 
WWUS51 KBUF 242112
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
512 PM EDT SAT JUL 24 2010

NYC009-013-242130-
/O.CON.KBUF.TO.W.0007.000000T0000Z-100724T2130Z/
CHAUTAUQUA NY-CATTARAUGUS NY-
512 PM EDT SAT JUL 24 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR WEST
CENTRAL CATTARAUGUS AND EAST CENTRAL CHAUTAUQUA COUNTIES...

AT 508 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR EAST RANDOLPH...OR
11 MILES NORTHWEST OF SALAMANCA...MOVING EAST AT 40 MPH.

THE TORNADO SOME LOCATIONS IN THE WARNING INCLUDE...
   CONEWANGO
   NAPOLI
   COLD SPRING 
   SALAMANCA

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 4226 7917 4230 7873 4214 7871 4216 7916
TIME...MOT...LOC 2111Z 269DEG 33KT 4223 7887

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 9:43 PM EDTFlash Flood WarningBUFCattaraugus, Chautauqua84 min
Jul 24, 3:32 PM EDTSpecial Marine WarningBUF22 min
Jul 24, 3:41 PM EDTSevere Thunderstorm WarningBUFChautauqua64 min
Jul 24, 4:08 PM EDTTornado WarningBUFChautauqua52 min
Jul 24, 5:00 PM EDTTornado WarningBUFChautauqua30 min
Jul 24, 5:05 PM EDTSevere Thunderstorm WarningBUFChautauqua55 min
Jul 24, 5:22 PM EDTTornado WarningBUFCattaraugus53 min
Jul 24, 5:59 PM EDTSevere Thunderstorm WarningBUFAllegany44 min

Nearby

Tornado Warnings in New York, 2010Every tornado warning in 2010Tornadoes in 2010

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.