Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 44, NWS Buffalo, NY

June 23, 2015Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 23, 2015, 5:27 AM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 63 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 23, 2015, 5:27 AM EDT (09:27 UTC)
Expired
Jun 23, 2015, 6:30 AM EDT
In force
63 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

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

The radar

The Buffalo radar (KBUF), 78 km from the middle of the area, began a volume at 09:30 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 23, 5:30 AM EDTTSTM WND DMGDayton, NYTREES AND WIRES DOWN
Jun 23, 6:04 AM EDTTSTM WND DMGAllegany, NYTREES AND WIRES DOWN
Jun 23, 6:04 AM EDTTSTM WND DMGOlean, NYTREES AND WIRES DOWN
Jun 23, 6:12 AM EDTTSTM WND DMGYorkshire, 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 00:00Z, 9.5 hours before the alert went out and 77 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 00:00Z on 2015-06-23Temperature 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 00:00Z on 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 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
2108 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
298 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.

667 
WUUS51 KBUF 230927
SVRBUF
NYC009-013-029-231030-
/O.NEW.KBUF.SV.W.0044.150623T0927Z-150623T1030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
527 AM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK...
  CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  EASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK...

* UNTIL 630 AM EDT

* AT 526 AM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
  SILVER CREEK TO NEAR FREWSBURG...AND MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OLEAN...SALAMANCA...ALLEGANY STATE PARK...BOSTON...SPRINGVILLE...
  COLDEN...GOWANDA...SILVER CREEK...RANDOLPH...LITTLE VALLEY...
  SOUTH DAYTON...ELLICOTVILLE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 90 NEAR EXIT 58.
 INTERSTATE 86 BETWEEN EXITS 13 AND 26.

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 4200 7920 4255 7917 4273 7851 4200 7837
TIME...MOT...LOC 0926Z 241DEG 53KT 4249 7919 4200 7922 

$$

HITCHCOCK
2 follow-up statements
974 
WWUS51 KBUF 231004
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
604 AM EDT TUE JUN 23 2015

NYC013-029-231013-
/O.CAN.KBUF.SV.W.0044.000000T0000Z-150623T1030Z/
ERIE NY-CHAUTAUQUA NY-
604 AM EDT TUE JUN 23 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ERIE AND EASTERN
CHAUTAUQUA COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED EAST OF 
THE AREA...THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4200 7884 4239 7891 4248 7847 4200 7837
TIME...MOT...LOC 1003Z 266DEG 56KT 4238 7860 4199 7857 

$$

NYC009-231030-
/O.CON.KBUF.SV.W.0044.000000T0000Z-150623T1030Z/
CATTARAUGUS NY-
604 AM EDT TUE JUN 23 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM EDT
FOR CATTARAUGUS COUNTY...

AT 603 AM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
ASHFORD TO NEAR BRADFORD...MOVING EAST AT 65 MPH.

LOCATIONS IMPACTED INCLUDE...
OLEAN...SALAMANCA...ALLEGANY STATE PARK...ASHFORD...ALLEGANY...
FRANKLINVILLE...ST. BONAVENTURE AND ASHFORD HOLLOW.

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 4200 7884 4239 7891 4248 7847 4200 7837
TIME...MOT...LOC 1003Z 266DEG 56KT 4238 7860 4199 7857 

$$

HITCHCOCK
249 
WWUS51 KBUF 231030 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
630 AM EDT TUE JUN 23 2015

NYC009-231040-
/O.EXP.KBUF.SV.W.0044.000000T0000Z-150623T1030Z/
CATTARAUGUS NY-
630 AM EDT TUE JUN 23 2015

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CATTARAUGUS COUNTY HAS
EXPIRED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4200 7884 4239 7891 4248 7847 4200 7837
TIME...MOT...LOC 1028Z 241DEG 53KT 4238 7860 4199 7857 

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 1:13 AM EDTSpecial Marine WarningBUF2 hr
Jun 23, 1:16 AM EDTSpecial Marine WarningBUF119 min
Jun 23, 3:21 AM EDTSpecial Marine WarningBUF84 min
Jun 23, 3:42 AM EDTSpecial Marine WarningBUF63 min
Jun 23, 3:44 AM EDTSpecial Marine WarningBUF61 min
Jun 23, 3:52 AM EDTSevere Thunderstorm WarningBUFErie, Niagara34 min
Jun 23, 4:24 AM EDTSpecial Marine WarningBUF96 min
Jun 23, 4:29 AM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Orleans, Wyoming46 min
Jun 23, 4:44 AM EDTSevere Thunderstorm WarningBUFChautauqua46 min
Jun 23, 4:52 AM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne53 min
Jun 23, 6:02 AM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus58 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.