Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 36, NWS Buffalo, NY

June 12, 2015Cayuga County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 12, 2015, 5:20 PM EDT for Cayuga County, Ontario County, Wayne County, New York. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 12, 2015, 5:20 PM EDT (21:20 UTC)
Expired
Jun 12, 2015, 5:52 PM EDT
In force
32 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Ontario County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 115 km from the middle of the area, began a volume at 21:20 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.

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
Jun 12, 3:07 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.3 hours before the alert went out and 159 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°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.

245 
WUUS51 KBUF 122120
SVRBUF
NYC011-069-117-122215-
/O.NEW.KBUF.SV.W.0036.150612T2120Z-150612T2215Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  CAYUGA COUNTY IN CENTRAL NEW YORK...
  SOUTHERN WAYNE COUNTY IN WESTERN NEW YORK...

* UNTIL 615 PM EDT

* AT 519 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED OVER PALMYRA...OR 10 MILES NORTH
  OF CANANDAIGUA...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEWARK...LYONS...PALMYRA...CLYDE...WEEDSPORT...CATO...CONQUEST AND
  SAVANNAH.

THIS INCLUDES INTERSTATE 90 NEAR EXIT 40.
 
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.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR WESTERN NEW
YORK.

LAT...LON 4310 7650 4303 7650 4302 7693 4301 7696
      4300 7696 4300 7738 4311 7737 4317 7648
      4315 7647 4314 7649 4311 7647
TIME...MOT...LOC 2119Z 269DEG 39KT 4304 7724 

$$

ZAFF
1 follow-up statement
590 
WWUS51 KBUF 122152
SVSBUF

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

NYC011-069-117-122202-
/O.CAN.KBUF.SV.W.0036.000000T0000Z-150612T2215Z/
ONTARIO NY-CAYUGA NY-WAYNE NY-
552 PM EDT FRI JUN 12 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ONTARIO...CAYUGA
AND SOUTHERN WAYNE COUNTIES IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4310 7650 4303 7650 4302 7693 4301 7696
      4300 7696 4300 7738 4311 7737 4317 7648
      4315 7647 4314 7649 4311 7647
TIME...MOT...LOC 2151Z 269DEG 39KT 4304 7679 

$$

WOOD

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, 3:20 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Wyoming55 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, 5:31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.