Alert archive / New York / Tornado Warnings in 2024

Tornado Warning 17, NWS Buffalo, NY

July 10, 2024Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this tornado warning at Jul 10, 2024, 4:05 PM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 10, 2024, 4:05 PM EDT (20:05 UTC)
Expired
Jul 10, 2024, 4:45 PM EDT
In force
40 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), 41 km from the middle of the area, began a volume at 20:09 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 10, 12:06 PM EDTTornado WatchSPC11 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.1 hours before the alert went out and 211 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 2024-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 565 joules per kilogram.LCLLFCEL10008507005003002001001 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 2024-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
565 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

469 
WFUS51 KBUF 102005
TORBUF
NYC045-049-075-102045-
/O.NEW.KBUF.TO.W.0017.240710T2005Z-240710T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Buffalo NY
405 PM EDT Wed Jul 10 2024

The National Weather Service in Buffalo has issued a

* Tornado Warning for...
  South central Jefferson County in central New York...
  West central Lewis County in central New York...
  Northeastern Oswego County in central New York...

* Until 445 PM EDT.

* At 404 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Selkirk Shores State Park, or near Sandy Island
  Beach State Park, moving northeast at 40 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...
  Pulaski, Selkirk Shores State Park, Barnes Corners, Mexico Point
  State Park, Richland, Mexico, Orwell, Lorraine, Sandy Creek, and
  Lacona.

This includes Interstate 81 between exits 35 and 38.
 
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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4346 7624 4355 7631 4356 7629 4356 7628
      4357 7627 4387 7580 4363 7562
TIME...MOT...LOC 2004Z 238DEG 37KT 4354 7620 

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

$$

Apffel
3 follow-up statements
427 
WWUS51 KBUF 102017
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
417 PM EDT Wed Jul 10 2024

NYC045-049-075-102045-
/O.CON.KBUF.TO.W.0017.000000T0000Z-240710T2045Z/
Jefferson NY-Lewis NY-Oswego NY-
417 PM EDT Wed Jul 10 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR SOUTH
CENTRAL JEFFERSON...WEST CENTRAL LEWIS AND NORTHEASTERN OSWEGO
COUNTIES...

At 416 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Pulaski, or 7 miles east of Sandy Island Beach State
Park, moving northeast at 45 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...
Pulaski, Barnes Corners, Richland, Orwell, Sandy Creek, Lacona,
Worth, and Smartville.

This includes Interstate 81 between exits 36 and 37.
 
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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4351 7608 4361 7616 4387 7580 4363 7562
TIME...MOT...LOC 2016Z 238DEG 37KT 4361 7605 

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

$$

Apffel
322 
WWUS51 KBUF 102030
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
430 PM EDT Wed Jul 10 2024

NYC045-049-075-102045-
/O.CON.KBUF.TO.W.0017.000000T0000Z-240710T2045Z/
Jefferson NY-Lewis NY-Oswego NY-
430 PM EDT Wed Jul 10 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR SOUTHERN
JEFFERSON...WEST CENTRAL LEWIS AND NORTHEASTERN OSWEGO COUNTIES...

At 430 PM EDT, a severe thunderstorm capable of producing a tornado
was located 9 miles south of Barnes Corners, or 16 miles east of
Sandy Island Beach State Park, moving northeast at 45 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...
Smartville.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4355 7596 4365 7604 4384 7578 4363 7562
TIME...MOT...LOC 2030Z 238DEG 37KT 4369 7588 

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

$$

Apffel
341 
WWUS51 KBUF 102042
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
442 PM EDT Wed Jul 10 2024

NYC045-049-075-102051-
/O.EXP.KBUF.TO.W.0017.000000T0000Z-240710T2045Z/
Jefferson NY-Lewis NY-Oswego NY-
442 PM EDT Wed Jul 10 2024

...THE TORNADO WARNING FOR SOUTHERN JEFFERSON...WEST CENTRAL LEWIS
AND NORTHEASTERN OSWEGO COUNTIES WILL EXPIRE AT 445 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.

A Tornado Watch remains in effect until 900 PM EDT for central New
York.

&&

LAT...LON 4355 7596 4365 7604 4384 7578 4363 7562
TIME...MOT...LOC 2041Z 238DEG 37KT 4373 7579 

$$

Apffel

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 9:41 PM EDTSmall Craft AdvisoryBUF40 hr
Jul 10, 3:15 AM EDTFlood WatchBUFJefferson, Lewis, Oswego19 hr
Jul 10, 4:37 AM EDTBeach Hazards StatementBUFMonroe, Niagara, Orleans17 hr
Jul 10, 7:04 AM EDTSpecial Weather StatementBUFOrleans41 min
Jul 10, 7:21 AM EDTSpecial Marine WarningBUF54 min
Jul 10, 9:39 AM EDTSpecial Marine WarningBUF66 min
Jul 10, 10:30 AM EDTSevere Thunderstorm WarningBUFJefferson, Lewis60 min
Jul 10, 11:01 AM EDTSevere Thunderstorm WarningBUFJefferson, Lewis59 min
Jul 10, 11:11 AM EDTSevere Thunderstorm WarningBUFChautauqua64 min
Jul 10, 11:29 AM EDTSpecial Marine WarningBUF44 min
Jul 10, 11:36 AM EDTSpecial Marine WarningBUF54 min
Jul 10, 11:48 AM EDTTornado WarningBUFChautauqua27 min
Jul 10, 12:07 PM EDTSpecial Marine WarningBUF83 min
Jul 10, 12:09 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie66 min
Jul 10, 12:21 PM EDTTornado Warning Tornado observedBUFCattaraugus, Chautauqua, Erie24 min
Jul 10, 12:30 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston75 min
Jul 10, 12:31 PM EDTSpecial Marine WarningBUF89 min
Jul 10, 12:44 PM EDTTornado Warning Tornado observedBUFErie31 min
Jul 10, 12:48 PM EDTSpecial Marine WarningBUF57 min
Jul 10, 12:57 PM EDTSevere Thunderstorm WarningBUFLewis48 min
Jul 10, 1:06 PM EDTSevere Thunderstorm WarningBUFErie, Niagara31 min
Jul 10, 1:12 PM EDTTornado Warning Tornado observedBUFErie, Genesee, Wyoming33 min
Jul 10, 1:27 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Wayne63 min
Jul 10, 1:29 PM EDTSpecial Marine WarningBUF52 min
Jul 10, 1:33 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego57 min
Jul 10, 1:36 PM EDTTornado WarningBUFAllegany, Livingston, Monroe, Ontario39 min
Jul 10, 1:39 PM EDTSevere Thunderstorm Warning Considerable damage threatBUFLewis22 min
Jul 10, 1:42 PM EDTTornado WarningBUFAllegany33 min
Jul 10, 1:43 PM EDTTornado WarningBUFJefferson, Oswego47 min
Jul 10, 1:44 PM EDTTornado Warning Tornado observedBUFGenesee, Monroe, Orleans20 min
Jul 10, 2:01 PM EDTSpecial Marine WarningBUF89 min
Jul 10, 2:17 PM EDTTornado WarningBUFOntario, Wayne43 min
Jul 10, 2:18 PM EDTTornado WarningBUFJefferson, Lewis, Oswego42 min
Jul 10, 2:21 PM EDTTornado WarningBUFMonroe, Wayne24 min
Jul 10, 2:24 PM EDTTornado WarningBUFCattaraugus, Chautauqua28 min
Jul 10, 2:26 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne34 min
Jul 10, 2:36 PM EDTTornado WarningBUFMonroe, Ontario, Wayne39 min
Jul 10, 2:42 PM EDTTornado WarningBUFOntario, Wayne48 min
Jul 10, 2:43 PM EDTSevere Thunderstorm WarningBUFChautauqua29 min
Jul 10, 2:45 PM EDTSpecial Marine WarningBUF90 min
Jul 10, 2:56 PM EDTSevere Thunderstorm WarningBUFOntario, Wayne49 min
Jul 10, 2:59 PM EDTSevere Thunderstorm WarningBUFLewis46 min
Jul 10, 3:06 PM EDTFlash Flood WarningBUFLewis7 hr
Jul 10, 3:09 PM EDTTornado WarningBUFCayuga, Oswego, Wayne51 min
Jul 10, 3:20 PM EDTTornado WarningBUFCayuga, Oswego, Wayne40 min
Jul 10, 4:06 PM EDTSpecial Marine WarningBUF39 min
Jul 10, 4:26 PM EDTTornado WarningBUFOswego28 min
Jul 10, 4:32 PM EDTSpecial Weather StatementBUFWayne28 min
Jul 10, 5:04 PM EDTSevere Thunderstorm WarningBUFLewis56 min
Jul 10, 6:17 PM EDTSpecial Weather StatementBUFLewis43 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.