Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 1, NWS Buffalo, NY

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

NWS Buffalo, NY issued this severe thunderstorm warning at May 10, 2013, 3:47 PM EDT for Allegany County, Cattaraugus County, New York. It was in force for 43 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, 3:47 PM EDT (19:47 UTC)
Expired
May 10, 2013, 4:30 PM EDT
In force
43 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Allegany County, NY, Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 66 km from the middle of the area, began a volume at 19:47 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, 4:15 PM EDTHAIL 1Rushford, 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, 7.8 hours before the alert went out and 63 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°0°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.

341 
WUUS51 KBUF 101947
SVRBUF
NYC003-009-102030-
/O.NEW.KBUF.SV.W.0001.130510T1947Z-130510T2030Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ALLEGANY COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK

* UNTIL 430 PM EDT

* AT 342 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
  ASHFORD...OR 15 MILES NORTH OF SALAMANCA...AND MOVING EAST AT 30
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  FRANKLINVILLE...
  RUSHFORD...
  LIME LAKE...
  MACHIAS...

LAT...LON 4231 7863 4242 7866 4252 7835 4252 7821
      4231 7806
TIME...MOT...LOC 1947Z 253DEG 26KT 4238 7857

$$

ZAFF
2 follow-up statements
718 
WUUS51 KBUF 101956 CCA
SVRBUF
NYC003-009-102030-
/O.COR.KBUF.SV.W.0001.130510T1947Z-130510T2030Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ALLEGANY COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK

* UNTIL 430 PM EDT

* AT 342 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
  ASHFORD...OR 15 MILES NORTH OF SALAMANCA...AND MOVING EAST AT 30
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  FRANKLINVILLE...
  RUSHFORD...
  LIME LAKE...
  MACHIAS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WINDS...LARGE 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 4231 7863 4242 7866 4252 7835 4252 7821
      4231 7806
TIME...MOT...LOC 1947Z 253DEG 26KT 4238 7857

$$

ZAFF
922 
WWUS51 KBUF 102003
SVSBUF

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

NYC003-009-102030-
/O.CON.KBUF.SV.W.0001.000000T0000Z-130510T2030Z/
ALLEGANY NY-CATTARAUGUS NY-
403 PM EDT FRI MAY 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHEASTERN CATTARAUGUS AND NORTHWESTERN ALLEGANY COUNTIES...

AT 400 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 LIME LAKE-MACHIAS...OR 22 MILES NORTHEAST OF
SALAMANCA...MOVING EAST AT 30 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  LIME LAKE...
  MACHIAS...
  CENTERVILLE...
  HOUGHTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4236 7845 4245 7850 4252 7821 4235 7809
TIME...MOT...LOC 2002Z 253DEG 26KT 4241 7843

$$

ZAFF

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, 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, 4:39 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.