Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 78, NWS Buffalo, NY

September 17, 2016Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 17, 2016, 6:00 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 45 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
Sep 17, 2016, 6:00 PM EDT (22:00 UTC)
Expired
Sep 17, 2016, 6:45 PM EDT
In force
45 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 33 km from the middle of the area, began a volume at 22:01 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, 10.0 hours before the alert went out and 32 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 2016-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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 2016-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 226 square meters per square second.193958Sfc1 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
48 J/kg
Mixed-layer CIN
-304 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

292 
WUUS51 KBUF 172200
SVRBUF
NYC009-013-029-172245-
/O.NEW.KBUF.SV.W.0078.160917T2200Z-160917T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
600 PM EDT SAT SEP 17 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ERIE COUNTY IN WESTERN NEW YORK...
  NORTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK...

* UNTIL 645 PM EDT.

* AT 600 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM EVANGOLA STATE PARK TO NEAR SILVER CREEK TO NEAR
  LAKE ERIE STATE PARK...MOVING NORTHEAST AT 55 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CHEEKTOWAGA...WEST SENECA...LACKAWANNA...FREDONIA...LANCASTER...
  HAMBURG...EAST AURORA AND EVANS.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 58 AND 56.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4225 7959 4245 7931 4259 7920 4260 7918
      4264 7916 4297 7851 4293 7846 4287 7846
      4287 7849 4278 7849 4278 7846 4277 7846
      4260 7870
TIME...MOT...LOC 2200Z 240DEG 49KT 4263 7911 4250 7921 4235 7942 

HAIL...1.00IN
WIND...60MPH
 
$$

HIBBERT
1 follow-up statement
187 
WWUS51 KBUF 172224
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
624 PM EDT SAT SEP 17 2016

NYC009-013-029-172245-
/O.CON.KBUF.SV.W.0078.000000T0000Z-160917T2245Z/
ERIE NY-CATTARAUGUS NY-CHAUTAUQUA NY-
624 PM EDT SAT SEP 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL ERIE...NORTHWESTERN CATTARAUGUS AND NORTHEASTERN
CHAUTAUQUA COUNTIES...

AT 623 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ORCHARD PARK TO EDEN TO NEAR SILVER CREEK...MOVING
NORTHEAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CHEEKTOWAGA...WEST SENECA...LACKAWANNA...LANCASTER...HAMBURG...EAST
AURORA...ELMA AND BOSTON.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 58 AND 56.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS IS A DANGEROUS SITUATION. THESE STORMS WERE PRODUCING WIND
DAMAGE ACROSS WESTERN CHAUTAUQUA COUNTY IN WESTFIELD. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
 
&&

LAT...LON 4250 7916 4275 7894 4297 7851 4293 7846
      4287 7846 4287 7849 4278 7849 4278 7846
      4277 7846 4260 7870 4241 7920
TIME...MOT...LOC 2223Z 240DEG 49KT 4277 7877 4264 7887 4249 7908 

HAIL...<.75IN
WIND...60MPH
 
$$

HIBBERT

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 16, 10:21 PM EDTBeach Hazards StatementBUFJefferson25 hr
Sep 17, 4:48 AM EDTSmall Craft AdvisoryBUF26 hr
Sep 17, 11:30 AM EDTSpecial Weather StatementBUFChautauqua45 min
Sep 17, 4:36 PM EDTSpecial Marine WarningBUF54 min
Sep 17, 5:22 PM EDTSevere Thunderstorm WarningBUFChautauqua38 min
Sep 17, 5:28 PM EDTSpecial Marine WarningBUF62 min
Sep 17, 6:13 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans47 min
Sep 17, 6:36 PM EDTTornado WarningBUFCattaraugus24 min
Sep 17, 6:37 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Orleans53 min
Sep 17, 6:42 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Wyoming48 min
Sep 17, 6:56 PM EDTSpecial Marine WarningBUF94 min
Sep 17, 7:00 PM EDTTornado WarningBUFCattaraugus30 min
Sep 17, 7:30 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne60 min
Sep 17, 7:50 PM EDTSpecial Marine WarningBUF55 min

Nearby

Severe Thunderstorm Warnings in New York, 2016Every severe thunderstorm warning in 2016

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.