Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 43, NWS Buffalo, NY

June 23, 20154 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 23, 2015, 4:52 AM EDT for 4 counties in New York. It was in force for 53 min. 13 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, 4:52 AM EDT (08:52 UTC)
Expired: Jun 23, 2015, 5:45 AM EDT
In force: 53 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

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

The radar

The Buffalo radar (KBUF), 100 km from the middle of the area, began a volume at 08:52 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

Time	Report	Where	Remark
Jun 23, 4:56 AM EDT	TSTM WND DMG	Avon, NY	TREES AND POWERLINES DOWN
Jun 23, 5:02 AM EDT	TSTM WND DMG	Lima, NY	TREES AND POWERLINES DOWN
Jun 23, 5:02 AM EDT	TSTM WND DMG	Lima, NY	TREES AND POWER LINES DOWN
Jun 23, 5:03 AM EDT	TSTM WND DMG	Honeoye Falls, NY	NEWS 8 TWITTER REPORT OF TREE LIMB ON HOME AND ROADWAY IN HONEOYE FALLS. TIME ESTIMATED FROM RADAR.
Jun 23, 5:03 AM EDT	TSTM WND DMG	Rush, NY	TREES AND LARGE BRANCHES DOWN
Jun 23, 5:05 AM EDT	TSTM WND DMG	Honeoye Falls, NY	TREES AND POWERLINES DOWN
Jun 23, 5:08 AM EDT	TSTM WND DMG	Mendon, NY	TREES AND LARGE BRANCHES DOWN
Jun 23, 5:08 AM EDT	TSTM WND DMG	West Bloomfield, NY	TREE LIMBS AND POWERLINES DOWN
Jun 23, 5:12 AM EDT	TSTM WND DMG	Victor, NY	TREE LIMBS AND POWERLINES DOWN
Jun 23, 5:13 AM EDT	TSTM WND DMG	1 Ese Uptonville, NY	TWITTER PIC FROM NEWS 10 OF TREE DOWN ON SUV ON DORBETH ROAD IN ROCHESTER
Jun 23, 5:19 AM EDT	TSTM WND DMG	Canandaigua, NY	TREE LIMBS AND POWERLINES DOWN
Jun 23, 5:19 AM EDT	TSTM WND DMG	Farmington, NY	TREE LIMBS AND POWERLINES DOWN
Jun 23, 5:20 AM EDT	TSTM WND DMG	Manchester, NY	TREE LIMBS AND POWERLINES 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, 8.9 hours before the alert went out and 97 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

102 
WUUS51 KBUF 230852
SVRBUF
NYC051-055-069-117-230945-
/O.NEW.KBUF.SV.W.0043.150623T0852Z-150623T0945Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ONTARIO COUNTY IN WESTERN NEW YORK...
  LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHWESTERN WAYNE COUNTY IN WESTERN NEW YORK...
  MONROE COUNTY IN WESTERN NEW YORK...

* UNTIL 545 AM EDT

* AT 451 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
  CALEDONIA TO 6 MILES NORTHEAST OF HOUGHTON...AND MOVING EAST AT 60
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROCHESTER...GREECE...IRONDEQUOIT...CHILI...CANANDAIGUA...GENESEO...
  EAST ROCHESTER...AND VICTOR.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 4 AND 12.
 INTERSTATE 90 BETWEEN EXITS 46 AND 43.

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 4252 7788 4322 7781 4326 7760 4324 7758
      4323 7753 4327 7742 4328 7735 4304 7714
      4276 7723 4276 7731 4274 7733 4267 7737
      4258 7737 4258 7766 4253 7766
TIME...MOT...LOC 0851Z 255DEG 50KT 4297 7788 4248 7806 

$$

HITCHCOCK

2 follow-up statements

175 
WWUS51 KBUF 230919
SVSBUF

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

NYC051-055-069-117-230945-
/O.CON.KBUF.SV.W.0043.000000T0000Z-150623T0945Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-MONROE NY-
519 AM EDT TUE JUN 23 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM EDT
FOR ONTARIO...EASTERN LIVINGSTON...SOUTHWESTERN WAYNE AND
SOUTHEASTERN MONROE COUNTIES...

AT 519 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 PALMYRA TO
NEAR NAPLES...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
CANANDAIGUA...EAST ROCHESTER...FAIRPORT...BRIGHTON...HENRIETTA...
PENFIELD...PALMYRA AND VICTOR.

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 4304 7714 4276 7723 4276 7731 4274 7733
      4267 7737 4258 7737 4258 7766 4253 7766
      4310 7767 4319 7727
TIME...MOT...LOC 0919Z 280DEG 49KT 4305 7726 4263 7744 

$$

HITCHCOCK

805 
WWUS51 KBUF 230942
SVSBUF

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

NYC051-055-069-117-230952-
/O.EXP.KBUF.SV.W.0043.000000T0000Z-150623T0945Z/
ONTARIO NY-LIVINGSTON NY-WAYNE NY-MONROE NY-
542 AM EDT TUE JUN 23 2015

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO...EASTERN
LIVINGSTON...SOUTHWESTERN WAYNE AND SOUTHEASTERN MONROE COUNTIES WILL
EXPIRE AT 545 AM EDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS AND EXITED THE WARNED AREA. THEREFORE THE WARNING WILL BE
ALLOWED TO EXPIRE.

LAT...LON 4304 7714 4276 7723 4276 7731 4274 7733
      4267 7737 4258 7737 4258 7766 4253 7766
      4310 7767 4319 7727
TIME...MOT...LOC 0940Z 255DEG 50KT 4305 7726 4263 7744 

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 1:13 AM EDT	Special Marine Warning	BUF		2 hr
Jun 23, 1:16 AM EDT	Special Marine Warning	BUF		119 min
Jun 23, 3:21 AM EDT	Special Marine Warning	BUF		84 min
Jun 23, 3:42 AM EDT	Special Marine Warning	BUF		63 min
Jun 23, 3:44 AM EDT	Special Marine Warning	BUF		61 min
Jun 23, 3:52 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	34 min
Jun 23, 4:24 AM EDT	Special Marine Warning	BUF		96 min
Jun 23, 4:29 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Orleans, Wyoming	46 min
Jun 23, 4:44 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	46 min
Jun 23, 5:27 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	63 min
Jun 23, 6:02 AM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	58 min

Nearby

Severe Thunderstorm Warnings in New York, 2015 Every 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.