Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 20, NWS Buffalo, NY

June 18, 2018Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 18, 2018, 2:14 PM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 46 min. 1 report 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 18, 2018, 2:14 PM EDT (18:14 UTC)
Expired: Jun 18, 2018, 3:00 PM EDT
In force: 46 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Ft Drum radar (KTYX), 26 km from the middle of the area, began a volume at 18:18 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 18, 2:52 PM EDT	TSTM WND DMG	4 Ene Brantingham, NY	TREE DOWN ON MOOSE RIVER RD.

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 18, 1:33 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.2 hours before the alert went out and 167 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: 1 J/kg
Mixed-layer CIN: -297 J/kg
Mixed-layer LCL: 1389 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

418 
WUUS51 KBUF 181814
SVRBUF
NYC045-049-075-181900-
/O.NEW.KBUF.SV.W.0020.180618T1814Z-180618T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
214 PM EDT MON JUN 18 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  South central Jefferson County in central New York...
  Central Lewis County in central New York...
  Northeastern Oswego County in central New York...

* Until 300 PM EDT..

* At 213 PM EDT, a severe thunderstorm was located 8 miles southeast
  of Barnes Corners, or 19 miles southeast of Watertown, moving east
  at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Lowville, Whetstone Gulf State Park, New Bremen, Watson,
  Martinsburg, Lyonsdale, Greig and Croghan.

# 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4359 7516 4360 7581 4382 7581 4393 7515
      4361 7511
TIME...MOT...LOC 1813Z 266DEG 37KT 4373 7571 

HAIL...<.75IN
WIND...60MPH
 
$$

Apffel

3 follow-up statements

840 
WWUS51 KBUF 181823
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
223 PM EDT MON JUN 18 2018

NYC045-075-181831-
/O.CAN.KBUF.SV.W.0020.000000T0000Z-180618T1900Z/
Jefferson NY-Oswego NY-
223 PM EDT MON JUN 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL JEFFERSON AND
NORTHEASTERN OSWEGO COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
Jefferson and Oswego counties. Therefore, the warning has been 
cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central New York.

LAT...LON 4359 7516 4360 7574 4384 7568 4393 7515
      4361 7511
TIME...MOT...LOC 1821Z 266DEG 37KT 4374 7559 

$$

NYC049-181900-
/O.CON.KBUF.SV.W.0020.000000T0000Z-180618T1900Z/
Lewis NY-
223 PM EDT MON JUN 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR CENTRAL LEWIS COUNTY...

At 221 PM EDT, a severe thunderstorm was located near Lowville, or 21
miles northwest of Boonville, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Lowville, Whetstone Gulf State Park, New Bremen, Watson, Martinsburg,
Lyonsdale, Greig and Lyons Falls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4359 7516 4360 7574 4384 7568 4393 7515
      4361 7511
TIME...MOT...LOC 1821Z 266DEG 37KT 4374 7559 

HAIL...<.75IN
WIND...60MPH
 
$$

Apffel

889 
WWUS51 KBUF 181836
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
236 PM EDT MON JUN 18 2018

NYC049-181900-
/O.CON.KBUF.SV.W.0020.000000T0000Z-180618T1900Z/
Lewis NY-
236 PM EDT MON JUN 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR SOUTHEASTERN LEWIS COUNTY...

At 235 PM EDT, a severe thunderstorm was located near Lowville, or 18
miles north of Boonville, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Lowville, Whetstone Gulf State Park, New Bremen, Watson, Martinsburg,
Lyonsdale, Greig and Lyons Falls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4360 7554 4384 7548 4393 7515 4361 7511
      4359 7516
TIME...MOT...LOC 1835Z 266DEG 37KT 4375 7538 

HAIL...<.75IN
WIND...60MPH
 
$$

Apffel

353 
WWUS51 KBUF 181857
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
257 PM EDT MON JUN 18 2018

NYC049-181907-
/O.EXP.KBUF.SV.W.0020.000000T0000Z-180618T1900Z/
Lewis NY-
257 PM EDT MON JUN 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEWIS COUNTY WILL
EXPIRE AT 300 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central New York.

LAT...LON 4360 7554 4384 7548 4393 7515 4361 7511
      4359 7516
TIME...MOT...LOC 1857Z 266DEG 37KT 4376 7509 

$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 12:59 PM EDT	Special Marine Warning	BUF		61 min
Jun 18, 1:19 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	41 min
Jun 18, 1:20 PM EDT	Special Marine Warning	BUF		40 min
Jun 18, 1:35 PM EDT	Special Marine Warning	BUF		55 min
Jun 18, 2:10 PM EDT	Special Weather Statement	BUF	Lewis	35 min
Jun 18, 2:16 PM EDT	Special Marine Warning	BUF		59 min
Jun 18, 2:32 PM EDT	Special Marine Warning	BUF		18 min
Jun 18, 2:39 PM EDT	Small Craft Advisory	BUF		3 hr
Jun 18, 2:40 PM EDT	Special Weather Statement	BUF	Erie	35 min
Jun 18, 3:56 PM EDT	Special Marine Warning	BUF		94 min
Jun 18, 6:00 PM EDT	Special Weather Statement	BUF	Livingston, Wyoming	60 min
Jun 18, 6:24 PM EDT	Special Marine Warning	BUF		66 min
Jun 18, 6:33 PM EDT	Special Weather Statement	BUF	Erie, Wyoming	57 min
Jun 18, 6:39 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	66 min
Jun 18, 6:45 PM EDT	Special Marine Warning	BUF		45 min
Jun 18, 7:27 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua	63 min

Nearby

Severe Thunderstorm Warnings in New York, 2018 Every severe thunderstorm warning in 2018

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.