Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 99, NWS Buffalo, NY

September 2, 2013Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 2, 2013, 5:24 PM EDT for Lewis County, New York. It was in force for 36 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: Sep 2, 2013, 5:24 PM EDT (21:24 UTC)
Expired: Sep 2, 2013, 6:00 PM EDT
In force: 36 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 31 km from the middle of the area, began a volume at 21:26 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
Sep 2, 5:40 PM EDT	TSTM WND DMG	Greig, NY	TREE DOWN ON LYONS FALLS RD.
Sep 2, 5:40 PM EDT	TSTM WND DMG	Greig, NY	TREE DOWN ON RIVER RD.
Sep 2, 5:40 PM EDT	TSTM WND DMG	Greig, NY	TREES AND WIRES DOWN ON LAKE HOUSE RD.
Sep 2, 5:45 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
Sep 2, 3:18 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.4 hours before the alert went out and 169 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: 129 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 712 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 31 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.

071 
WUUS51 KBUF 022124
SVRBUF
NYC049-022200-
/O.NEW.KBUF.SV.W.0099.130902T2124Z-130902T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
524 PM EDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 600 PM EDT

* AT 521 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 6 MILES SOUTHWEST OF
  LOWVILLE...OR 20 MILES NORTHWEST OF BOONVILLE...AND MOVING EAST AT
  25 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  LOWVILLE...

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 1000 PM EDT
MONDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4370 7512 4359 7565 4377 7575 4396 7515
      4395 7514 4374 7511
TIME...MOT...LOC 2125Z 250DEG 20KT 4373 7555

$$

WOOD

1 follow-up statement

656 
WWUS51 KBUF 022155
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
555 PM EDT MON SEP 2 2013

NYC049-022206-
/O.EXP.KBUF.SV.W.0099.000000T0000Z-130902T2200Z/
LEWIS NY-
555 PM EDT MON SEP 2 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LEWIS COUNTY WILL
EXPIRE AT 600 PM EDT...

AT 556 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 1000 PM EDT
MONDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4370 7512 4359 7565 4377 7575 4396 7515
      4395 7514 4374 7511
TIME...MOT...LOC 2156Z 250DEG 20KT 4375 7531

$$

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 8:03 PM EDT	Special Weather Statement	BUF	Allegany	57 min
Sep 1, 10:40 PM EDT	Special Weather Statement	BUF	Wayne	65 min
Sep 1, 11:43 PM EDT	Special Weather Statement	BUF	Oswego	77 min
Sep 2, 12:20 AM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	55 min
Sep 2, 11:06 AM EDT	Special Marine Warning	BUF		54 min
Sep 2, 11:31 AM EDT	Special Marine Warning	BUF		44 min
Sep 2, 11:52 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	23 min
Sep 2, 12:13 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	32 min
Sep 2, 12:39 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	36 min
Sep 2, 12:51 PM EDT	Special Weather Statement	BUF	Cayuga	39 min
Sep 2, 1:11 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	34 min
Sep 2, 1:28 PM EDT	Special Weather Statement	BUF	Genesee	62 min
Sep 2, 1:35 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wyoming	55 min
Sep 2, 2:01 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga	29 min
Sep 2, 2:14 PM EDT	Special Weather Statement	BUF	Cattaraugus	61 min
Sep 2, 2:37 PM EDT	Special Marine Warning	BUF		38 min
Sep 2, 2:46 PM EDT	Special Weather Statement	BUF	Cayuga	29 min
Sep 2, 3:20 PM EDT	Special Marine Warning	BUF		85 min
Sep 2, 3:31 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	59 min
Sep 2, 3:45 PM EDT	Special Marine Warning	BUF		2 hr
Sep 2, 3:59 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	61 min
Sep 2, 4:15 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	60 min
Sep 2, 4:25 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	65 min
Sep 2, 4:31 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	59 min
Sep 2, 4:32 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	43 min
Sep 2, 4:36 PM EDT	Flash Flood Warning	BUF	Cayuga, Oswego	3 hr
Sep 2, 4:39 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	51 min
Sep 2, 4:57 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	33 min
Sep 2, 4:59 PM EDT	Special Marine Warning	BUF		61 min
Sep 2, 5:35 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	25 min
Sep 2, 5:36 PM EDT	Areal Flood Advisory	BUF	Lewis	3 hr
Sep 2, 6:24 PM EDT	Small Craft Advisory	BUF		61 hr

Nearby

Severe Thunderstorm Warnings in New York, 2013 Every severe thunderstorm warning in 2013

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.