Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 30, NWS Buffalo, NY

June 12, 20154 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 12, 2015, 3:20 PM EDT for 4 counties in New York. It was in force for 55 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
Jun 12, 2015, 3:20 PM EDT (19:20 UTC)
Expired
Jun 12, 2015, 4:15 PM EDT
In force
55 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Niagara County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 7 km from the middle of the area, began a volume at 19:24 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
Jun 12, 3:35 PM EDTTSTM WND DMGPark Village, NYTREES AND WIRES DOWN ACROSS SWEENEY STREET
Jun 12, 3:37 PM EDTTSTM WND DMG2 Sse Kenilworth, NYLARGE TREE ON HOUSE ON BENNETT VILLAGE TERRACE
Jun 12, 3:37 PM EDTTSTM WND DMG2 W Pine Hill, NYTREES DOWN ON HOUSE AND GARAGE ON DUTTON AVE

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
Jun 12, 2:54 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.3 hours before the alert went out and 10 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 2015-06-12Temperature 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 2015-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
1195 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
215 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.

673 
WUUS51 KBUF 121920
SVRBUF
NYC029-037-063-121-122015-
/O.NEW.KBUF.SV.W.0030.150612T1920Z-150612T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
320 PM EDT FRI JUN 12 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN NIAGARA COUNTY IN WESTERN NEW YORK...
  WESTERN GENESEE COUNTY IN WESTERN NEW YORK...
  NORTHEASTERN ERIE COUNTY IN WESTERN NEW YORK...
  NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 415 PM EDT

* AT 319 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR NIAGARA FALLS TO 7 MILES WEST OF ERIE BASIN
  MARINA...AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BUFFALO...CHEEKTOWAGA...WEST SENECA...NORTH TONAWANDA...CLARENCE...
  LACKAWANNA...KENMORE AND DEPEW.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 57 AND 48A.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4306 7899 4300 7894 4302 7890 4304 7889
      4304 7890 4307 7892 4307 7898 4309 7899
      4310 7826 4290 7825 4267 7828 4275 7889
      4279 7885 4282 7887 4284 7886 4287 7889
      4297 7896 4300 7902
TIME...MOT...LOC 1919Z 270DEG 43KT 4312 7898 4287 7905 

$$

ZAFF
1 follow-up statement
391 
WWUS51 KBUF 121945
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
345 PM EDT FRI JUN 12 2015

NYC029-037-063-121-122015-
/O.CON.KBUF.SV.W.0030.000000T0000Z-150612T2015Z/
NIAGARA NY-GENESEE NY-ERIE NY-WYOMING NY-
345 PM EDT FRI JUN 12 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHEASTERN NIAGARA...WESTERN GENESEE...NORTHEASTERN ERIE AND
NORTHWESTERN WYOMING COUNTIES...

AT 344 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR LOCKPORT TO NEAR CHEEKTOWAGA...MOVING EAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
BUFFALO...CHEEKTOWAGA...WEST SENECA...NORTH TONAWANDA...CLARENCE...
LACKAWANNA...KENMORE AND DEPEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4309 7887 4310 7826 4290 7825 4267 7828
      4279 7885 4282 7887 4284 7886 4287 7889
TIME...MOT...LOC 1944Z 273DEG 40KT 4313 7866 4288 7873 

$$

ZAFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 10:16 AM EDTFlash Flood WatchBUFAllegany, Cayuga, Jefferson, Lewis, Livingston, Monroe and 3 more8 hr
Jun 12, 2:52 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario38 min
Jun 12, 2:59 PM EDTSpecial Marine WarningBUF61 min
Jun 12, 3:14 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Wyoming61 min
Jun 12, 3:30 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua60 min
Jun 12, 4:04 PM EDTSevere Thunderstorm WarningBUFGenesee26 min
Jun 12, 4:15 PM EDTSevere Thunderstorm WarningBUFErie, Livingston, Wyoming60 min
Jun 12, 4:35 PM EDTSpecial Weather StatementBUFOntario55 min
Jun 12, 4:40 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario65 min
Jun 12, 4:42 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston63 min
Jun 12, 5:20 PM EDTSevere Thunderstorm WarningBUFCayuga, Ontario, Wayne32 min
Jun 12, 5:31 PM EDTSevere Thunderstorm WarningBUFOntario29 min
Jun 12, 5:39 PM EDTSevere Thunderstorm WarningBUFOntario21 min
Jun 12, 5:40 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Ontario35 min

Nearby

Severe Thunderstorm Warnings in New York, 2015Every severe thunderstorm warning in 2015

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.