Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Buffalo, NY

March 26, 2021Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Mar 26, 2021, 10:44 AM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 61 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: Mar 26, 2021, 10:44 AM EDT (14:44 UTC)
Expired: Mar 26, 2021, 11:45 AM EDT
In force: 61 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), 16 km from the middle of the area, began a volume at 14:46 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
Mar 26, 11:08 AM EDT	TSTM WND DMG	2 Ssw Castorland, NY	DAMAGE TO A HOUSE ON ROUTE 26.
Mar 26, 11:10 AM EDT	TSTM WND DMG	2 Ne Castorland, NY	NUMEROUS TREES BLOWN DOWN AND DAMAGE TO A SHED AND BARN ON CR 33 AND NAUMBURG RD.
Mar 26, 11:17 AM EDT	TSTM WND DMG	Croghan, NY	NUMEROUS TREES AND POWERLINES DOWN IN CROGHAN.

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, 2.7 hours before the alert went out and 178 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: 2 J/kg
Mixed-layer CIN: -438 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 311 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

904 
WUUS51 KBUF 261444
SVRBUF
NYC045-049-075-261545-
/O.NEW.KBUF.SV.W.0003.210326T1444Z-210326T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1044 AM EDT Fri Mar 26 2021

The National Weather Service in Buffalo has issued a

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

* Until 1145 AM EDT..

* At 1044 AM EDT, severe thunderstorms were located along a line
  extending from near Barnes Corners to near Pulaski, moving east at
  45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Carthage, Lowville, West Carthage, Redfield, Highmarket, Barnes
  Corners, Whetstone Gulf State Park, Richland, Denmark and New
  Bremen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm contains very little lightning, do not wait for the sound 
of thunder to seek shelter.

&&

LAT...LON 4350 7537 4348 7612 4389 7594 4414 7526
      4410 7517 4361 7511
TIME...MOT...LOC 1444Z 260DEG 40KT 4384 7587 4352 7603 

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

Hitchcock

4 follow-up statements

141 
WWUS51 KBUF 261508
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1108 AM EDT Fri Mar 26 2021

NYC075-261517-
/O.CAN.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Oswego NY-
1108 AM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OSWEGO COUNTY IS
CANCELLED...

The storms which prompted the warning have moved east and out of
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4349 7574 4399 7566 4414 7526 4410 7517
      4361 7511 4350 7537
TIME...MOT...LOC 1507Z 270DEG 40KT 4388 7552 4356 7568 

$$

NYC045-049-261545-
/O.CON.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Jefferson NY-Lewis NY-
1108 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR EAST CENTRAL JEFFERSON AND LEWIS COUNTIES...

At 1107 AM EDT, severe thunderstorms were located along a line
extending from 6 miles north of Lowville to 7 miles east of Redfield,
moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm contains very little lightning, do not wait for the sound 
of thunder to seek shelter.

&&

LAT...LON 4349 7574 4399 7566 4414 7526 4410 7517
      4361 7511 4350 7537
TIME...MOT...LOC 1507Z 270DEG 40KT 4388 7552 4356 7568 

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

Hitchcock

801 
WWUS51 KBUF 261515
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1115 AM EDT Fri Mar 26 2021

NYC045-049-261545-
/O.CON.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Jefferson NY-Lewis NY-
1115 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR EAST CENTRAL JEFFERSON AND LEWIS COUNTIES...

At 1115 AM EDT, severe thunderstorms were located along a line
extending from 8 miles southeast of Carthage to near Highmarket,
moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Radar has shown some rotation in this storm. While not imminent, a 
tornado is possible.

&&

LAT...LON 4349 7563 4401 7561 4414 7526 4410 7517
      4361 7511 4350 7537
TIME...MOT...LOC 1515Z 260DEG 42KT 4394 7545 4364 7555 

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

Hitchcock

202 
WWUS51 KBUF 261525
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1125 AM EDT Fri Mar 26 2021

NYC045-261535-
/O.CAN.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Jefferson NY-
1125 AM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL JEFFERSON COUNTY
IS CANCELLED...

The storms which prompted the warning have moved east and out of
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4414 7526 4410 7517 4361 7511 4358 7541
      4408 7543
TIME...MOT...LOC 1525Z 260DEG 40KT 4396 7533 4366 7543 

$$

NYC049-261545-
/O.CON.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Lewis NY-
1125 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR EASTERN LEWIS COUNTY...

At 1125 AM EDT, severe thunderstorms were located along a line
extending from 13 miles east of Carthage to near Whetstone Gulf State
Park, moving east at 45 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Lyonsdale, Greig, Port Leyden, Croghan, Lyons Falls, Turin, Belfort,
Soft Maple Reservoir, Kirschnerville and Indian River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4414 7526 4410 7517 4361 7511 4358 7541
      4408 7543
TIME...MOT...LOC 1525Z 260DEG 40KT 4396 7533 4366 7543 

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

Hitchcock

206 
WWUS51 KBUF 261547
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1147 AM EDT Fri Mar 26 2021

NYC049-261557-
/O.EXP.KBUF.SV.W.0003.000000T0000Z-210326T1545Z/
Lewis NY-
1147 AM EDT Fri Mar 26 2021

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

LAT...LON 4414 7526 4410 7517 4361 7511 4358 7541
      4408 7543
TIME...MOT...LOC 1547Z 260DEG 40KT 4400 7500 4370 7510 

$$

Hitchcock

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 10:02 PM EDT	Small Craft Advisory	BUF		31 hr
Mar 26, 2:27 AM EDT	Special Weather Statement	BUF	Erie, Wyoming	48 min
Mar 26, 7:00 AM EDT	Special Marine Warning	BUF		45 min
Mar 26, 7:15 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	45 min
Mar 26, 7:47 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Monroe, Niagara, Orleans	45 min
Mar 26, 7:54 AM EDT	Special Marine Warning	BUF		66 min
Mar 26, 8:00 AM EDT	Special Weather Statement	BUF	Oswego	45 min
Mar 26, 8:50 AM EDT	Special Marine Warning	BUF		55 min
Mar 26, 9:44 AM EDT	Special Marine Warning	BUF		61 min
Mar 26, 9:58 AM EDT	Special Weather Statement	BUF	Oswego	47 min
Mar 26, 10:38 AM EDT	Special Weather Statement	BUF	Oswego	37 min

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.