Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 25, NWS Buffalo, NY

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

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 17, 2014, 9:30 PM EDT for Jefferson County, Lewis County, New York. It was in force for 60 min. 3 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, 9:30 PM EDT (01:30 UTC)
Expired: Jun 17, 2014, 10:30 PM EDT
In force: 60 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 17 km from the middle of the area, began a volume at 01:32 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, 9:36 PM EDT	TSTM WND DMG	Turin, NY	TREES AND WIRES DOWN
Jun 17, 9:40 PM EDT	TSTM WND DMG	Port Leyden, NY	TREES AND WIRES DOWN
Jun 17, 9:42 PM EDT	TSTM WND DMG	Greig, 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, 1.5 hours before the alert went out and 174 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.

656 
WUUS51 KBUF 180130
SVRBUF
NYC045-049-180230-
/O.NEW.KBUF.SV.W.0025.140618T0130Z-140618T0230Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL JEFFERSON COUNTY IN CENTRAL NEW YORK
  LEWIS COUNTY IN CENTRAL NEW YORK

* UNTIL 1030 PM EDT

* AT 927 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 13 MILES NORTH OF INDIAN RIVER
  TO 7 MILES EAST OF LOWVILLE TO 11 MILES SOUTHWEST OF HIGHMARKET...
  OR ALONG A LINE EXTENDING FROM 26 MILES EAST OF FORT DRUM TO 19
  MILES NORTH OF BOONVILLE TO 9 MILES NORTHEAST OF CAMDEN...AND
  MOVING EAST AT 60 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LYONS
  FALLS AND PORT LEYDEN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. 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.

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

&&

LAT...LON 4342 7552 4342 7557 4346 7574 4347 7576
      4357 7575 4381 7570 4421 7543 4410 7516
      4362 7510
TIME...MOT...LOC 0131Z 283DEG 52KT 4414 7518 4375 7529
          4343 7555

$$

WOOD

1 follow-up statement

031 
WWUS51 KBUF 180202
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1002 PM EDT TUE JUN 17 2014

NYC045-049-180213-
/O.CAN.KBUF.SV.W.0025.000000T0000Z-140618T0230Z/
LEWIS NY-JEFFERSON NY-
1002 PM EDT TUE JUN 17 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL JEFFERSON AND
LEWIS COUNTIES IS CANCELLED...

AT 1003 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 CANCELLED.

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

LAT...LON 4342 7552 4342 7557 4346 7574 4347 7576
      4357 7575 4381 7570 4421 7543 4410 7516
      4362 7510
TIME...MOT...LOC 0203Z 283DEG 52KT 4403 7455 4364 7466
          4333 7493

$$

WOOD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 8:11 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	64 min
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, 9:46 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.