Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 18, NWS Buffalo, NY

June 8, 20156 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2015, 11:13 AM EDT for 6 counties in New York. It was in force for 62 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 8, 2015, 11:13 AM EDT (15:13 UTC)
Expired
Jun 8, 2015, 12:15 PM EDT
In force
62 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

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

The radar

The Buffalo radar (KBUF), 126 km from the middle of the area, began a volume at 15:15 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 3.2 hours before the alert went out and 123 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.

907 
WUUS51 KBUF 081513
SVRBUF
NYC037-051-055-069-117-121-081615-
/O.NEW.KBUF.SV.W.0018.150608T1513Z-150608T1615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1113 AM EDT MON JUN 8 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  NORTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN GENESEE COUNTY IN WESTERN NEW YORK...
  WAYNE COUNTY IN WESTERN NEW YORK...
  EAST CENTRAL WYOMING COUNTY IN WESTERN NEW YORK...
  SOUTHERN MONROE COUNTY IN WESTERN NEW YORK...

* UNTIL 1215 PM EDT

* AT 1112 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED NEAR CALEDONIA...OR 9 MILES NORTH OF GENESEO...AND
  MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROCHESTER...IRONDEQUOIT...GENESEO...EAST ROCHESTER...WEBSTER...
  FAIRPORT...BRIGHTON AND LETCHWORTH STATE PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 8 AND 12.
 INTERSTATE 90 BETWEEN EXITS 46 AND 44.

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.

TO REPORT SEVERE WEATHER...CONTACT THE NATIONAL WEATHER SERVICE...OR
YOUR NEAREST LAW ENFORCEMENT AGENCY WHO WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE OFFICE IN BUFFALO.

&&

LAT...LON 4270 7797 4297 7797 4328 7732 4328 7717
      4329 7715 4328 7707 4327 7703 4327 7695
      4330 7690 4331 7684 4331 7680 4323 7674
TIME...MOT...LOC 1512Z 239DEG 46KT 4293 7783 

$$

MITCHELL
2 follow-up statements
426 
WWUS51 KBUF 081554
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1154 AM EDT MON JUN 8 2015

NYC037-121-081602-
/O.CAN.KBUF.SV.W.0018.000000T0000Z-150608T1615Z/
GENESEE NY-WYOMING NY-
1154 AM EDT MON JUN 8 2015

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

LAT...LON 4280 7773 4295 7770 4328 7709 4328 7707
      4327 7703 4327 7695 4330 7690 4331 7684
      4331 7680 4323 7674
TIME...MOT...LOC 1552Z 239DEG 46KT 4320 7722 

$$

NYC051-055-069-117-081615-
/O.CON.KBUF.SV.W.0018.000000T0000Z-150608T1615Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-MONROE NY-
1154 AM EDT MON JUN 8 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT
FOR NORTHWESTERN ONTARIO...NORTHEASTERN LIVINGSTON...CENTRAL WAYNE
AND SOUTHEASTERN MONROE COUNTIES...

AT 1152 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED OVER WILLIAMSON...OR 10 MILES EAST OF WEBSTER...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
FAIRPORT...WILLIAMSON...MARION...PALMYRA...VICTOR...HONEOYE FALLS...
LIMA AND SODUS.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN BUFFALO.

&&

LAT...LON 4280 7773 4295 7770 4328 7709 4328 7707
      4327 7703 4327 7695 4330 7690 4331 7684
      4331 7680 4323 7674
TIME...MOT...LOC 1552Z 239DEG 46KT 4320 7722 

$$

MITCHELL
017 
WWUS51 KBUF 081617
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1217 PM EDT MON JUN 8 2015

NYC051-055-069-117-081626-
/O.EXP.KBUF.SV.W.0018.000000T0000Z-150608T1615Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-MONROE NY-
1217 PM EDT MON JUN 8 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ONTARIO...
NORTHEASTERN LIVINGSTON...CENTRAL WAYNE AND SOUTHEASTERN MONROE
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 4280 7773 4295 7770 4328 7709 4328 7707
      4327 7703 4327 7695 4330 7690 4331 7684
      4331 7680 4323 7674
TIME...MOT...LOC 1614Z 239DEG 46KT 4320 7722 

$$

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, 11:27 AM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Livingston, Ontario78 min
Jun 8, 11:39 AM EDTSevere Thunderstorm WarningBUFLivingston, Ontario, Wayne, Wyoming66 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.