Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 9, NWS Buffalo, NY

May 4, 2018Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 4, 2018, 5:44 PM EDT for Lewis County, Oswego County, New York. It was in force for 61 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: May 4, 2018, 5:44 PM EDT (21:44 UTC)
Expired: May 4, 2018, 6:45 PM EDT
In force: 61 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 18 km from the middle of the area, began a volume at 21:46 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
May 4, 6:01 PM EDT	TSTM WND GST 66	Lowville, NY

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
May 4, 2:44 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.7 hours before the alert went out and 176 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 812 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

402 
WUUS51 KBUF 042144
SVRBUF
NYC049-075-042245-
/O.NEW.KBUF.SV.W.0009.180504T2144Z-180504T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
544 PM EDT FRI MAY 4 2018

The National Weather Service in Buffalo has issued a

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

* Until 645 PM EDT.

* At 543 PM EDT, a severe thunderstorm was located near Redfield, or
  19 miles north of Camden, moving east at 60 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect wind damage to trees and power lines. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4342 7553 4348 7581 4346 7584 4369 7581
      4369 7577 4373 7578 4397 7516 4361 7511
TIME...MOT...LOC 2143Z 249DEG 50KT 4361 7574 

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

Church

3 follow-up statements

611 
WWUS51 KBUF 042212
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
612 PM EDT FRI MAY 4 2018

NYC075-042222-
/O.CAN.KBUF.SV.W.0009.000000T0000Z-180504T2245Z/
Oswego NY-
612 PM EDT FRI MAY 4 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OSWEGO COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 900 PM EDT for
central New York.

LAT...LON 4346 7574 4376 7566 4397 7516 4361 7511
      4342 7553
TIME...MOT...LOC 2212Z 249DEG 50KT 4375 7522 

$$

NYC049-042245-
/O.CON.KBUF.SV.W.0009.000000T0000Z-180504T2245Z/
Lewis NY-
612 PM EDT FRI MAY 4 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHERN LEWIS COUNTY...

At 612 PM EDT, a severe thunderstorm was located 11 miles northwest
of McKeever, or 12 miles west of Old Forge, moving east at 60 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect wind damage to trees and power lines. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4346 7574 4376 7566 4397 7516 4361 7511
      4342 7553
TIME...MOT...LOC 2212Z 249DEG 50KT 4375 7522 

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

Church

087 
WWUS51 KBUF 042231
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
631 PM EDT FRI MAY 4 2018

NYC049-042245-
/O.CON.KBUF.SV.W.0009.000000T0000Z-180504T2245Z/
Lewis NY-
631 PM EDT FRI MAY 4 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHEASTERN LEWIS COUNTY...

At 631 PM EDT, a severe thunderstorm was located 7 miles northwest of
McKeever, or 11 miles west of Old Forge, moving east at 55 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect wind damage to trees and power lines. 

Locations impacted include...
Lyonsdale, Port Leyden, Lyons Falls, Constableville, West Leyden,
Talcottville and Brantingham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4370 7534 4397 7516 4361 7511 4342 7553
TIME...MOT...LOC 2231Z 254DEG 48KT 4370 7520 

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

Church

258 
WWUS51 KBUF 042237
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
637 PM EDT FRI MAY 4 2018

NYC049-042246-
/O.EXP.KBUF.SV.W.0009.000000T0000Z-180504T2245Z/
Lewis NY-
637 PM EDT FRI MAY 4 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEWIS COUNTY WILL
EXPIRE AT 645 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 900 PM EDT for
central New York.

LAT...LON 4370 7534 4397 7516 4361 7511 4342 7553
TIME...MOT...LOC 2236Z 249DEG 50KT 4372 7513 

$$

Church

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 12:20 AM EDT	Dense Fog Advisory	BUF	Erie, Jefferson, Niagara	5 hr
May 4, 3:58 AM EDT	Wind Advisory	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	19 hr
May 4, 4:02 AM EDT	Gale Warning	BUF		16 hr
May 4, 2:18 PM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Wyoming	57 min
May 4, 3:35 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	55 min
May 4, 4:04 PM EDT	High Wind Warning	BUF	Erie, Genesee, Jefferson, Lewis, Niagara, Orleans	7 hr
May 4, 4:05 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	40 min
May 4, 4:10 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe, Orleans, Wayne	35 min
May 4, 4:27 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	33 min
May 4, 4:46 PM EDT	Special Marine Warning	BUF		59 min
May 4, 4:50 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	22 min
May 4, 4:59 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Jefferson, Lewis, Oswego	61 min
May 4, 5:32 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	58 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.