Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 3, NWS Buffalo, NY

May 10, 2013Cattaraugus County, Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 10, 2013, 4:22 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 38 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
May 10, 2013, 4:22 PM EDT (20:22 UTC)
Expired
May 10, 2013, 5:00 PM EDT
In force
38 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 20:23 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, 4:30 PM EDTTSTM WND DMG1 S Conewango, NYTREE DOWN.

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, 8.4 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 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.

647 
WUUS51 KBUF 102022
SVRBUF
NYC009-013-102100-
/O.NEW.KBUF.SV.W.0003.130510T2022Z-130510T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
422 PM EDT FRI MAY 10 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 500 PM EDT

* AT 420 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 NEAR
  FALCONER...OR 6 MILES NORTHEAST OF JAMESTOWN...AND MOVING NORTHEAST
  AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  RANDOLPH...
  CONEWANGO...
  LITTLE VALLEY...
  ELLICOTTVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4246 7869 4224 7863 4209 7922 4219 7926
TIME...MOT...LOC 2022Z 241DEG 31KT 4217 7912

$$

RSH
1 follow-up statement
317 
WWUS51 KBUF 102050
SVSBUF

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

NYC013-102100-
/O.CAN.KBUF.SV.W.0003.000000T0000Z-130510T2100Z/
CHAUTAUQUA NY-
450 PM EDT FRI MAY 10 2013

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

LAT...LON 4217 7891 4235 7892 4246 7869 4224 7863
TIME...MOT...LOC 2050Z 241DEG 31KT 4229 7883

$$

NYC009-102100-
/O.CON.KBUF.SV.W.0003.000000T0000Z-130510T2100Z/
CATTARAUGUS NY-
450 PM EDT FRI MAY 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CENTRAL CATTARAUGUS COUNTY...

AT 449 PM 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 LITTLE VALLEY...OR 10 MILES NORTHWEST OF SALAMANCA...
MOVING NORTHEAST AT 35 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4217 7891 4235 7892 4246 7869 4224 7863
TIME...MOT...LOC 2050Z 241DEG 31KT 4229 7883

$$

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, 4:27 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Wyoming63 min
May 10, 4:33 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie57 min
May 10, 4:39 PM EDTTornado WarningBUFChautauqua36 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

Severe Thunderstorm Warnings in New York, 2013Every severe thunderstorm warning 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.