Alert archive / New York / Tornado Warnings in 2024

Tornado Warning 24, NWS Buffalo, NY

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

NWS Buffalo, NY issued this tornado warning at Sep 9, 2024, 5:09 PM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 51 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, 5:09 PM EDT (21:09 UTC)
Expired
Sep 9, 2024, 6:00 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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

The radar

The Ft Drum radar (KTYX), 10 km from the middle of the area, began a volume at 21:08 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

TimeReportWhereRemark
Sep 9, 5:15 PM EDTTORNADO2 S Worth, NYSatellite imagery confirmed tornadic damage from September 9. Time estimated from radar. This is the start location of tornado.
Sep 9, 5:17 PM EDTTORNADO2 S Worth, NYSatellite 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, 9.2 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2024-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2024-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

553 
WFUS51 KBUF 092109
TORBUF
NYC045-049-075-092200-
/O.NEW.KBUF.TO.W.0024.240909T2109Z-240909T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Buffalo NY
509 PM EDT Mon Sep 9 2024

The National Weather Service in Buffalo has issued a

* Tornado 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 509 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Barnes Corners, or 14 miles south of Watertown,
  moving east at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Barnes Corners, Whetstone Gulf State Park, Lorraine, Worth,
  Bellwood, and Rector.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4372 7602 4384 7587 4376 7546 4353 7558
TIME...MOT...LOC 2109Z 288DEG 17KT 4376 7592 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Mitchell
2 follow-up statements
387 
WWUS51 KBUF 092140
SVSBUF

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

NYC045-075-092149-
/O.CAN.KBUF.TO.W.0024.000000T0000Z-240909T2200Z/
Jefferson NY-Oswego NY-
540 PM EDT Mon Sep 9 2024

...THE TORNADO WARNING FOR SOUTH CENTRAL JEFFERSON AND NORTHEASTERN
OSWEGO COUNTIES IS CANCELLED...

The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4361 7554 4359 7555 4366 7577 4375 7578
      4378 7578 4376 7546
TIME...MOT...LOC 2139Z 285DEG 16KT 4374 7576 

$$

NYC049-092200-
/O.CON.KBUF.TO.W.0024.000000T0000Z-240909T2200Z/
Lewis NY-
540 PM EDT Mon Sep 9 2024

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

At 539 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Barnes Corners, or 18 miles southeast of Watertown,
moving east at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Whetstone Gulf State Park and Rector.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4361 7554 4359 7555 4366 7577 4375 7578
      4378 7578 4376 7546
TIME...MOT...LOC 2139Z 285DEG 16KT 4374 7576 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Mitchell
036 
WWUS51 KBUF 092155
SVSBUF

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

NYC049-092204-
/O.EXP.KBUF.TO.W.0024.000000T0000Z-240909T2200Z/
Lewis NY-
555 PM EDT Mon Sep 9 2024

...THE TORNADO 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 appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 4361 7554 4359 7555 4366 7577 4375 7578
      4378 7578 4376 7546
TIME...MOT...LOC 2154Z 288DEG 17KT 4372 7568 

$$

Mitchell

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 2:01 AM EDTSmall Craft AdvisoryBUF18 hr
Sep 9, 2:27 PM EDTSpecial Marine WarningBUF63 min
Sep 9, 3:12 PM EDTSpecial Marine WarningBUF33 min
Sep 9, 3:26 PM EDTSpecial Weather StatementBUFMonroe49 min
Sep 9, 3:30 PM EDTSpecial Marine WarningBUF45 min
Sep 9, 3:46 PM EDTSpecial Marine WarningBUF59 min
Sep 9, 3:47 PM EDTSpecial Marine WarningBUF58 min
Sep 9, 4:00 PM EDTSevere Thunderstorm WarningBUFMonroe, Wayne60 min
Sep 9, 4:14 PM EDTSpecial Marine WarningBUF31 min
Sep 9, 4:22 PM EDTSevere Thunderstorm WarningBUFErie, Niagara53 min
Sep 9, 4:36 PM EDTSpecial Weather StatementBUFOswego39 min
Sep 9, 5:02 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego58 min
Sep 9, 5:05 PM EDTFlash Flood WarningBUFMonroe, Wayne4 hr

Nearby

Tornado Warnings in New York, 2024Every tornado warning in 2024Tornadoes 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.