Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Buffalo, NY

May 26, 2021Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 26, 2021, 12:57 PM EDT for Lewis County, New York. It was in force for 63 min. 8 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: May 26, 2021, 12:57 PM EDT (16:57 UTC)
Expired: May 26, 2021, 2:00 PM EDT
In force: 63 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 26 km from the middle of the area, began a volume at 17:00 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 26, 1:16 PM EDT	TSTM WND DMG	Osceola, NY	TREES AND WIRES DOWN IN OSCEOLA. TIME ESTIMATED BY RADAR.
May 26, 1:21 PM EDT	TSTM WND DMG	7 Ese Osceola, NY	TREES AND WIRES DOWN IN SWANCOTT MILL.
May 26, 1:28 PM EDT	TSTM WND DMG	Constableville, NY	TREES AND WIRES DOWN ON JAMES STREET IN CONSTABLEVILLE. TIME ESTIMATED BY RADAR.
May 26, 1:32 PM EDT	TSTM WND DMG	1 S Turin, NY	TREES AND WIRES DOWN IN SOUTH TURIN. TIME ESTIMATED BY RADAR.
May 26, 1:32 PM EDT	TSTM WND DMG	1 W Turin, NY	TREES AND WIRES DOWN IN WEST TURIN. TIME ESTIMATED BY RADAR.
May 26, 1:32 PM EDT	TSTM WND DMG	Turin, NY	TREES AND WIRES DOWN IN TURIN. TIME ESTIMATED BY RADAR.
May 26, 1:35 PM EDT	TSTM WND DMG	Lyons Falls, NY	TREES AND WIRES DOWN IN LYONS FALLS. TIME ESTIMATED BY RADAR.
May 26, 1:36 PM EDT	TSTM WND DMG	3 E Lyons Falls, NY	TREES AND WIRES DOWN. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.0 hours before the alert went out and 166 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: 6 J/kg
Mixed-layer CIN: -291 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

011 
WUUS51 KBUF 261657
SVRBUF
NYC049-261800-
/O.NEW.KBUF.SV.W.0007.210526T1657Z-210526T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1257 PM EDT Wed May 26 2021

The National Weather Service in Buffalo has issued a

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

* Until 200 PM EDT..

* At 1257 PM EDT, a severe thunderstorm was located 9 miles southwest
  of Redfield, or 14 miles northwest of Camden, moving east at 50
  mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Whetstone Gulf State Park, Highmarket, Watson, Martinsburg,
  Lyonsdale, Greig, Port Leyden, Lyons Falls, Constableville and
  Turin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4342 7553 4347 7576 4370 7577 4386 7514
      4361 7511
TIME...MOT...LOC 1657Z 248DEG 43KT 4346 7597 

HAIL...0.75IN
WIND...60MPH
 
$$

Hitchcock

3 follow-up statements

218 
WWUS51 KBUF 261731
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
131 PM EDT Wed May 26 2021

NYC049-261800-
/O.CON.KBUF.SV.W.0007.000000T0000Z-210526T1800Z/
Lewis NY-
131 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR SOUTHEASTERN LEWIS COUNTY...

At 130 PM EDT, severe thunderstorms were located along a line
extending from Whetstone Gulf State Park to 6 miles southwest of
Boonville, moving east at 50 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Whetstone Gulf State Park, Highmarket, Watson, Martinsburg,
Lyonsdale, Greig, Port Leyden, Lyons Falls, Constableville and Turin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4342 7553 4344 7561 4375 7558 4386 7514
      4361 7511
TIME...MOT...LOC 1730Z 258DEG 42KT 4368 7546 4344 7545 

HAIL...0.75IN
WIND...60MPH
 
$$

Hitchcock

706 
WWUS51 KBUF 261743
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
143 PM EDT Wed May 26 2021

NYC049-261800-
/O.CON.KBUF.SV.W.0007.000000T0000Z-210526T1800Z/
Lewis NY-
143 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR SOUTHEASTERN LEWIS COUNTY...

At 143 PM EDT, severe thunderstorms were located along a line
extending from 8 miles east of Whetstone Gulf State Park to near
Boonville, moving northeast at 50 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Lyonsdale, Greig, Port Leyden, Lyons Falls, Turin, Talcottville and
Brantingham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4369 7542 4382 7514 4361 7511 4349 7538
TIME...MOT...LOC 1743Z 246DEG 43KT 4369 7530 4354 7527 

HAIL...0.75IN
WIND...70MPH
 
$$

Hitchcock

478 
WWUS51 KBUF 261809
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
209 PM EDT Wed May 26 2021

NYC049-261819-
/O.EXP.KBUF.SV.W.0007.000000T0000Z-210526T1800Z/
Lewis NY-
209 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEWIS COUNTY HAS
EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Buffalo.

LAT...LON 4369 7542 4382 7514 4361 7511 4349 7538
TIME...MOT...LOC 1809Z 248DEG 43KT 4380 7493 4365 7490 

$$

Hitchcock

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 10:19 AM EDT	Small Craft Advisory	BUF		9 hr
May 26, 11:17 AM EDT	Special Weather Statement	BUF	Livingston	28 min
May 26, 11:31 AM EDT	Special Weather Statement	BUF	Wayne	29 min
May 26, 11:44 AM EDT	Special Weather Statement	BUF	Livingston	16 min
May 26, 11:53 AM EDT	Special Marine Warning	BUF		52 min
May 26, 11:59 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	61 min
May 26, 12:03 PM EDT	Special Weather Statement	BUF	Allegany	27 min
May 26, 12:36 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	39 min
May 26, 1:57 PM EDT	Special Weather Statement	BUF	Chautauqua	33 min
May 26, 2:05 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	43 min
May 26, 4:25 PM EDT	Small Craft Advisory	BUF		16 hr

Nearby

Severe Thunderstorm Warnings in New York, 2021 Every severe thunderstorm warning in 2021

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.