Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Buffalo, NY

June 17, 2014Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 17, 2014, 8:11 PM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 64 min. 7 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, 8:11 PM EDT (00:11 UTC)
Expired: Jun 17, 2014, 9:15 PM EDT
In force: 64 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 14 km from the middle of the area, began a volume at 00:12 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, 8:34 PM EDT	HAIL 1.25	1 W Windecker, NY	ON ROUTE 177
Jun 17, 8:45 PM EDT	HAIL 1	Lowville, NY
Jun 17, 8:50 PM EDT	TSTM WND DMG	Lowville, NY	BARN COLLAPSE ON CATTLE
Jun 17, 8:50 PM EDT	TSTM WND DMG	Lowville, NY	TREE DOWN IN TOWN
Jun 17, 8:50 PM EDT	TSTM WND DMG	Lowville, NY	NUMEROUS REPORTS OF TREES DOWN.
Jun 17, 9:00 PM EDT	TSTM WND DMG	Watertown, NY	TREES AND WIRES DOWN
Jun 17, 9:05 PM EDT	TSTM WND DMG	Black River, NY	TREES AND WIRES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 17, 6:51 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.2 hours before the alert went out and 202 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: 393 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1637 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 245 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

778 
WUUS51 KBUF 180011
SVRBUF
NYC045-049-075-180115-
/O.NEW.KBUF.SV.W.0021.140618T0011Z-140618T0115Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JEFFERSON COUNTY IN CENTRAL NEW YORK
  NORTHERN LEWIS COUNTY IN CENTRAL NEW YORK
  NORTHEASTERN OSWEGO COUNTY IN CENTRAL NEW YORK

THIS ALSO INCLUDES INTERSTATE 81 BETWEEN EXITS 40 AND 46.

* UNTIL 915 PM EDT

* AT 807 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
  BARNES CORNERS...OR 11 MILES SOUTH OF WATERTOWN...AND MOVING EAST
  AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  INDIAN RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
WEDNESDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4362 7602 4390 7615 4392 7613 4420 7538
      4410 7516 4380 7513
TIME...MOT...LOC 0010Z 249DEG 39KT 4383 7583

$$

WOOD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 8:35 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	55 min
Jun 17, 8:45 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	60 min
Jun 17, 8:46 PM EDT	Special Weather Statement	BUF	Erie, Genesee, Livingston, Ontario, Wayne, Wyoming	59 min
Jun 17, 8:58 PM EDT	Special Weather Statement	BUF	Oswego	62 min
Jun 17, 9:02 PM EDT	Special Marine Warning	BUF		58 min
Jun 17, 9:06 PM EDT	Tornado Warning	BUF	Jefferson, Lewis	39 min
Jun 17, 9:29 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	61 min
Jun 17, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	60 min
Jun 17, 9:46 PM EDT	Special Weather Statement	BUF	Livingston, Ontario, Wyoming	44 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.