Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 19, NWS Buffalo, NY

June 8, 20154 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2015, 11:39 AM EDT for 4 counties in New York. It was in force for 66 min. 4 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 8, 2015, 11:39 AM EDT (15:39 UTC)
Expired
Jun 8, 2015, 12:45 PM EDT
In force
66 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Livingston County, NY, Ontario County, NY, Wayne County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 115 km from the middle of the area, began a volume at 15:39 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 8, 11:51 AM EDTTSTM WND DMG1 S Livonia Center, NYPOWER LINES DOWN ON ADAMS ROAD.
Jun 8, 11:53 AM EDTTSTM WND DMGHemlock, NYLARGE TREE LIMBS DOWN IN THE AREA OF MAIN STREET
Jun 8, 12:10 PM EDTTSTM WND DMGCanandaigua, NYTREES AND WIRES DOWN ON HONEOYE ROAD
Jun 8, 12:30 PM EDTTSTM WND DMGWest Sparta, NYTREES AND WIRES 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, 3.7 hours before the alert went out and 112 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 2015-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 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 2015-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
4 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
135 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.

973 
WUUS51 KBUF 081539
SVRBUF
NYC051-069-117-121-081645-
/O.NEW.KBUF.SV.W.0019.150608T1539Z-150608T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1139 AM EDT MON JUN 8 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ONTARIO COUNTY IN WESTERN NEW YORK...
  CENTRAL LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN WAYNE COUNTY IN WESTERN NEW YORK...
  EAST CENTRAL WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 1245 PM EDT

* AT 1138 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED OVER MOUNT MORRIS...OR NEAR GENESEO...AND MOVING EAST
  AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GENEVA...CANANDAIGUA...LETCHWORTH STATE PARK...NEWARK...LYONS...
  MOUNT MORRIS...CONESUS AND BRISTOL.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 6 AND 7.
 INTERSTATE 90 BETWEEN EXITS 43 AND 42.

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 4271 7798 4324 7676 4303 7671 4301 7696
      4276 7698 4276 7731 4267 7736 4260 7800
TIME...MOT...LOC 1538Z 257DEG 49KT 4271 7783 

$$

MITCHELL
2 follow-up statements
749 
WWUS51 KBUF 081622
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1222 PM EDT MON JUN 8 2015

NYC121-081631-
/O.CAN.KBUF.SV.W.0019.000000T0000Z-150608T1645Z/
WYOMING NY-
1222 PM EDT MON JUN 8 2015

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WYOMING COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4290 7734 4305 7712 4324 7676 4303 7671
      4301 7696 4276 7698 4276 7731 4267 7736
      4265 7762
TIME...MOT...LOC 1621Z 257DEG 49KT 4284 7705 

$$

NYC051-069-117-081645-
/O.CON.KBUF.SV.W.0019.000000T0000Z-150608T1645Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-
1222 PM EDT MON JUN 8 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM EDT
FOR ONTARIO...EAST CENTRAL LIVINGSTON AND SOUTHEASTERN WAYNE
COUNTIES...

AT 1221 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED NEAR GENEVA...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
GENEVA...CANANDAIGUA...NEWARK...LYONS...CLIFTON SPRINGS...CLYDE...
PHELPS AND RUSHVILLE.

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 4290 7734 4305 7712 4324 7676 4303 7671
      4301 7696 4276 7698 4276 7731 4267 7736
      4265 7762
TIME...MOT...LOC 1621Z 257DEG 49KT 4284 7705 

$$

MITCHELL
604 
WWUS51 KBUF 081646
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1246 PM EDT MON JUN 8 2015

NYC051-069-117-081655-
/O.EXP.KBUF.SV.W.0019.000000T0000Z-150608T1645Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-
1246 PM EDT MON JUN 8 2015

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO...EAST CENTRAL
LIVINGSTON AND SOUTHEASTERN WAYNE COUNTIES HAS EXPIRED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4290 7734 4305 7712 4324 7676 4303 7671
      4301 7696 4276 7698 4276 7731 4267 7736
      4265 7762
TIME...MOT...LOC 1645Z 257DEG 49KT 4284 7705 

$$

MITCHELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 9:55 AM EDTSpecial Weather StatementBUFErie50 min
Jun 8, 10:25 AM EDTSevere Thunderstorm WarningBUFErie, Genesee, Wyoming65 min
Jun 8, 10:30 AM EDTTornado WarningBUFErie, Wyoming45 min
Jun 8, 11:13 AM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Wayne, Wyoming62 min
Jun 8, 11:27 AM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Livingston, Ontario78 min
Jun 8, 12:39 PM EDTSpecial Weather StatementBUFLewis, Oswego81 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.