Alert archive / New York / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 113, NWS Buffalo, NY

September 9, 2024Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 9, 2024, 5:02 PM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 58 min. 2 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 9, 2024, 5:02 PM EDT (21:02 UTC)
Expired: Sep 9, 2024, 6:00 PM EDT
In force: 58 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Tornado: Possible
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), 12 km from the middle of the area, began a volume at 21:02 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 9, 5:15 PM EDT	TORNADO	2 S Worth, NY	Satellite imagery confirmed tornadic damage from September 9. Time estimated from radar. This is the start location of tornado.
Sep 9, 5:17 PM EDT	TORNADO	2 S Worth, NY	Satellite imagery confirmed tornadic damage from September 9. Time estimated from radar. This is the end location of tornado.

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, 9.0 hours before the alert went out and 195 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: 1152 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

910 
WUUS51 KBUF 092102
SVRBUF
NYC045-049-075-092200-
/O.NEW.KBUF.SV.W.0113.240909T2102Z-240909T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
502 PM EDT Mon Sep 9 2024

The National Weather Service in Buffalo has issued a

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

* Until 600 PM EDT.

* At 502 PM EDT, a severe thunderstorm was located near Adams, or 14
  miles northeast of Sandy Island Beach State Park, moving southeast
  at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Adams, Barnes Corners, Whetstone Gulf State Park, Highmarket, Adams
  Center, Martinsburg, Rodman, Lorraine, Mannsville, and
  Constableville.

This includes Interstate 81 near exit 39.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4370 7609 4387 7599 4371 7535 4346 7550
TIME...MOT...LOC 2102Z 293DEG 19KT 4376 7596 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Mitchell

2 follow-up statements

553 
WWUS51 KBUF 092145
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
545 PM EDT Mon Sep 9 2024

NYC045-075-092154-
/O.CAN.KBUF.SV.W.0113.000000T0000Z-240909T2200Z/
Jefferson NY-Oswego NY-
545 PM EDT Mon Sep 9 2024

...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 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4356 7544 4355 7544 4366 7577 4378 7579
      4378 7578 4377 7557 4371 7535 4370 7535
TIME...MOT...LOC 2144Z 283DEG 15KT 4374 7574 

$$

NYC049-092200-
/O.CON.KBUF.SV.W.0113.000000T0000Z-240909T2200Z/
Lewis NY-
545 PM EDT Mon Sep 9 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHWESTERN LEWIS COUNTY...

At 544 PM EDT, a severe thunderstorm was located near Barnes Corners,
or 18 miles southeast of Watertown, moving east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Highmarket, Whetstone Gulf State Park, Martinsburg, Constableville,
Turin, and Rector.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4356 7544 4355 7544 4366 7577 4378 7579
      4378 7578 4377 7557 4371 7535 4370 7535
TIME...MOT...LOC 2144Z 283DEG 15KT 4374 7574 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Mitchell

372 
WWUS51 KBUF 092156
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
556 PM EDT Mon Sep 9 2024

NYC049-092206-
/O.EXP.KBUF.SV.W.0113.000000T0000Z-240909T2200Z/
Lewis NY-
556 PM EDT Mon Sep 9 2024

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

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be 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 4356 7544 4355 7544 4366 7577 4378 7579
      4378 7578 4377 7557 4371 7535 4370 7535
TIME...MOT...LOC 2156Z 293DEG 19KT 4372 7567 

$$

Mitchell

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 2:01 AM EDT	Small Craft Advisory	BUF		18 hr
Sep 9, 2:27 PM EDT	Special Marine Warning	BUF		63 min
Sep 9, 3:12 PM EDT	Special Marine Warning	BUF		33 min
Sep 9, 3:26 PM EDT	Special Weather Statement	BUF	Monroe	49 min
Sep 9, 3:30 PM EDT	Special Marine Warning	BUF		45 min
Sep 9, 3:46 PM EDT	Special Marine Warning	BUF		59 min
Sep 9, 3:47 PM EDT	Special Marine Warning	BUF		58 min
Sep 9, 4:00 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	60 min
Sep 9, 4:14 PM EDT	Special Marine Warning	BUF		31 min
Sep 9, 4:22 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	53 min
Sep 9, 4:36 PM EDT	Special Weather Statement	BUF	Oswego	39 min
Sep 9, 5:05 PM EDT	Flash Flood Warning	BUF	Monroe, Wayne	4 hr
Sep 9, 5:09 PM EDT	Tornado Warning	BUF	Jefferson, Lewis, Oswego	51 min

Nearby

Severe Thunderstorm Warnings in New York, 2024 Every severe thunderstorm warning in 2024

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.