Alert archive / New York / Tornado Warnings in 2010

Tornado Warning 9, NWS Buffalo, NY

July 24, 2010Cattaraugus County, New York

NWS Buffalo, NY issued this tornado warning at Jul 24, 2010, 5:22 PM EDT for Cattaraugus County, New York. It was in force for 53 min. 12 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, 5:22 PM EDT (21:22 UTC)
Expired
Jul 24, 2010, 6:15 PM EDT
In force
53 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 21:22 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, 5:25 PM EDTTSTM WND DMGGreat Valley, NYTREES AND WIRES DOWN ON MUTTON HOLLOW ROAD
Jul 24, 5:25 PM EDTTORNADOGreat Valley, NYNY STATE POLICE AERIAL SURVEY CONFIRMS F1 TORNADO
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.
Jul 24, 5:31 PM EDTTSTM WND DMGGreat Valley, NYTREES AND WIRES DOWN
Jul 24, 5:40 PM EDTTSTM WND DMG5 Sw Salamanca, NYEST 1 MI NW OF EXIT 19 OF I-86...30+ TREES BLOWN OVER OR TOPPED. SEVERAL ROADS CLOSED IN THE AREA.
Jul 24, 5:49 PM EDTTSTM WND DMGCarrollton, NYNUMEROUS TREES DOWN
Jul 24, 5:49 PM EDTTORNADO 1Carrollton, NYNUMEROUS TREES DOWN
Jul 24, 5:53 PM EDTTSTM WND DMGOlean, NYTREES AND WIRES DOWN
Jul 24, 5:55 PM EDTTSTM WND DMGAllegany, NYTREES AND WIRES DOWN
Jul 24, 5:59 PM EDTTSTM WND DMGAllegany, NYNUMEROUS TREES 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.

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.4 hours before the alert went out and 88 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.

460 
WFUS51 KBUF 242122
TORBUF
NYC009-242215-
/O.NEW.KBUF.TO.W.0009.100724T2122Z-100724T2215Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITIES OF...SALAMANCA...OLEAN...

* UNTIL 615 PM EDT

* AT 517 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES         
  NORTHWEST OF SALAMANCA...MOVING EAST AT 40 MPH. ANOTHER SEVERE     
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED ABOUT 5    
  MILES WEST OF RANDOLPH...MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
   SALAMANCA
   HINSDALE
   RANDOLPH
   ALLEGHANY STATE PARK
   OLEAN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A PARTICULARLY DANGEROUS AND LIFE THREATENING SITUATION. 
THESE STORMS HAVE A HISTORY OF PRODUCING TORNADOES IN CHAUTAUQUA 
COUNTY. THESE STORMS ARE CAPABLE OF PRODUCING STRONG AND DESTRUCTIVE 
TORNADOES.

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 4200 7906 4226 7906 4227 7905 4233 7831
      4200 7831
TIME...MOT...LOC 2120Z 269DEG 35KT 4221 7881

$$

HITCHCOCK
3 follow-up statements
450 
WWUS51 KBUF 242147
SVSBUF

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

NYC009-242215-
/O.CON.KBUF.TO.W.0009.000000T0000Z-100724T2215Z/
CATTARAUGUS NY-
547 PM EDT SAT JUL 24 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR SOUTHERN 
CATTARAUGUS COUNTY...

AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
TORNADO WAS LOCATED 8 MILES NORTHEAST OF SALAMANCA...MOVING EAST AT 
40 MPH.

ANOTHER SEVERE THUNDERSTORM WITH DAMAGING STRAIGHT LINE WINDS TO 70 
MPH AND POSSIBLE TORNADOES WAS LOCATED ABOUT 5 MILES SOUTHWEST OF 
SALAMANCA AND MOVING EAST SOUTHEAST AT 40 MPH.

THE TORNADO SOME LOCATIONS IN THE WARNING INCLUDE...
    HUMPHREY
    ISCHUA

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 4200 7899 4231 7857 4233 7831 4200 7831
TIME...MOT...LOC 2145Z 269DEG 35KT 4222 7852

$$

HITCHCOCK
178 
WWUS51 KBUF 242204
SVSBUF

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

NYC009-242215-
/O.CON.KBUF.TO.W.0009.000000T0000Z-100724T2215Z/
CATTARAUGUS NY-
604 PM EDT SAT JUL 24 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR
SOUTHEASTERN CATTARAUGUS COUNTY...

AT 559 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH ROTATION.  THIS STORM WAS 
LOCATED NEAR HINSDALE...OR 11 MILES NORTHEAST OF OLEAN...MOVING EAST 
AT 40 MPH.

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 4201 7859 4219 7849 4227 7831 4200 7831
TIME...MOT...LOC 2204Z 269DEG 35KT 4222 7827

$$

HITCHCOCK
184 
WWUS51 KBUF 242214
SVSBUF

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

NYC009-242224-
/O.EXP.KBUF.TO.W.0009.000000T0000Z-100724T2215Z/
CATTARAUGUS NY-
614 PM EDT SAT JUL 24 2010

...THE TORNADO WARNING FOR SOUTHEASTERN CATTARAUGUS COUNTY WILL
EXPIRE AT 615 PM EDT...

AT 614 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SATURDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4201 7859 4219 7849 4227 7831 4200 7831
TIME...MOT...LOC 2214Z 269DEG 35KT 4222 7814

$$

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, 4:40 PM EDTTornado WarningBUFCattaraugus, Chautauqua50 min
Jul 24, 5:00 PM EDTTornado WarningBUFChautauqua30 min
Jul 24, 5:05 PM EDTSevere Thunderstorm WarningBUFChautauqua55 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.