Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 17, NWS Buffalo, NY

June 17, 2014Monroe County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 17, 2014, 2:40 PM EDT for Monroe County, Ontario County, Wayne County, New York. It was in force for 65 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 17, 2014, 2:40 PM EDT (18:40 UTC)
Expired: Jun 17, 2014, 3:45 PM EDT
In force: 65 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

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

The radar

The Buffalo radar (KBUF), 122 km from the middle of the area, began a volume at 18:42 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 17, 2:43 PM EDT	TSTM WND DMG	Brighton, NY	MULTIPLE REPORTS OF WIRES DOWN
Jun 17, 2:47 PM EDT	TSTM WND DMG	Penfield, NY	MULTIPLE REPORTS OF WIRES DOWN
Jun 17, 3:11 PM EDT	TSTM WND DMG	East Williamson, NY	LARGE BANCHES DOWN ON SIDE OF ROUTE 104
Jun 17, 3:19 PM EDT	TSTM WND DMG	Marion, NY	SOFFIT TRIM BLOWN OFF HOUSE WITH MANY MEDIUM SIZED BROKEN BRANCHES

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, 6.7 hours before the alert went out and 119 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: 128 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1154 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

504 
WUUS51 KBUF 171840
SVRBUF
NYC055-069-117-171945-
/O.NEW.KBUF.SV.W.0017.140617T1840Z-140617T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
240 PM EDT TUE JUN 17 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MONROE COUNTY IN WESTERN NEW YORK
  NORTH CENTRAL ONTARIO COUNTY IN WESTERN NEW YORK
  WAYNE COUNTY IN WESTERN NEW YORK

THIS ALSO INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 45 AND 46.

THIS ALSO INCLUDES INTERSTATE 390 BETWEEN EXITS 11 AND 12.

* UNTIL 345 PM EDT

* AT 240 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HENRIETTA...OR NEAR BRIGHTON...AND MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  EAST ROCHESTER...
  FAIRPORT...
  ONTARIO...
  MARION...
  SODUS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4296 7771 4308 7775 4329 7738 4330 7709
      4328 7704 4328 7695 4328 7694 4305 7683
TIME...MOT...LOC 1840Z 249DEG 33KT 4307 7754

$$

RSH

3 follow-up statements

147 
WWUS51 KBUF 171911
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
311 PM EDT TUE JUN 17 2014

NYC055-069-171921-
/O.CAN.KBUF.SV.W.0017.000000T0000Z-140617T1945Z/
ONTARIO NY-MONROE NY-
311 PM EDT TUE JUN 17 2014

THIS ALSO INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 45 AND 46.

THIS ALSO INCLUDES INTERSTATE 390 BETWEEN EXITS 11 AND 12.

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONROE AND NORTH
CENTRAL ONTARIO COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4328 7738 4329 7729 4328 7729 4330 7710
      4328 7704 4328 7694 4311 7692 4305 7736
TIME...MOT...LOC 1911Z 238DEG 34KT 4325 7719

$$

NYC117-171945-
/O.CON.KBUF.SV.W.0017.000000T0000Z-140617T1945Z/
WAYNE NY-
311 PM EDT TUE JUN 17 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR WESTERN WAYNE COUNTY...

AT 301 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ONTARIO...OR 6 MILES EAST OF WEBSTER...MOVING NORTHEAST
AT 40 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  SODUS...
  SODUS POINT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4328 7738 4329 7729 4328 7729 4330 7710
      4328 7704 4328 7694 4311 7692 4305 7736
TIME...MOT...LOC 1911Z 238DEG 34KT 4325 7719

$$

RSH

747 
WWUS51 KBUF 171927
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
327 PM EDT TUE JUN 17 2014

NYC117-171945-
/O.CON.KBUF.SV.W.0017.000000T0000Z-140617T1945Z/
WAYNE NY-
327 PM EDT TUE JUN 17 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL WAYNE COUNTY...

AT 325PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
 THIS STORM WAS LOCATED NEAR SODUS...OR 18 MILES EAST OF WEBSTER...
MOVING NORTHEAST AT 40 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  RURAL WAYNE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4313 7692 4312 7712 4328 7720 4330 7710
      4328 7704 4328 7694
TIME...MOT...LOC 1928Z 238DEG 34KT 4331 7700

$$

RSH

844 
WWUS51 KBUF 171945
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
345 PM EDT TUE JUN 17 2014

NYC117-171955-
/O.EXP.KBUF.SV.W.0017.000000T0000Z-140617T1945Z/
WAYNE NY-
345 PM EDT TUE JUN 17 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WAYNE COUNTY HAS
EXPIRED...

AT 345 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4313 7692 4312 7712 4328 7720 4330 7710
      4328 7704 4328 7694
TIME...MOT...LOC 1927Z 238DEG 34KT 4330 7701

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 2:15 PM EDT	Special Weather Statement	BUF	Monroe	60 min
Jun 17, 2:20 PM EDT	Special Weather Statement	BUF	Livingston	55 min
Jun 17, 2:28 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario, Wyoming	62 min
Jun 17, 2:41 PM EDT	Special Marine Warning	BUF		64 min
Jun 17, 3:15 PM EDT	Special Marine Warning	BUF		45 min
Jun 17, 3:58 PM EDT	Special Marine Warning	BUF		62 min
Jun 17, 6:28 PM EDT	Special Marine Warning	BUF		92 min
Jun 17, 6:33 PM EDT	Special Marine Warning	BUF		57 min
Jun 17, 7:00 PM EDT	Special Marine Warning	BUF		60 min
Jun 17, 7:08 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Niagara, Orleans	67 min
Jun 17, 7:27 PM EDT	Special Marine Warning	BUF		33 min
Jun 17, 7:29 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	46 min
Jun 17, 7:39 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Monroe, Niagara, Orleans, Wyoming	66 min
Jun 17, 7:56 PM EDT	Special Marine Warning	BUF		64 min
Jun 17, 7:59 PM EDT	Special Marine Warning	BUF		91 min

Nearby

Severe Thunderstorm Warnings in New York, 2014 Every severe thunderstorm warning in 2014

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.