Alert archive / New York / Tornado Warnings in 2021

Tornado Warning 15, NWS Binghamton, NY

October 16, 2021Cayuga County, Seneca County, Tompkins County, New York

NWS Binghamton, NY issued this tornado warning at Oct 16, 2021, 5:55 AM EDT for Cayuga County, Seneca County, Tompkins County, New York. It was in force for 35 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
Oct 16, 2021, 5:55 AM EDT (09:55 UTC)
Expired
Oct 16, 2021, 6:30 AM EDT
In force
35 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Cayuga County, NY, Seneca County, NY, Tompkins County, NY

The radar

The Binghamton radar (KBGM), 77 km from the middle of the area, began a volume at 09:59 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.9 hours before the alert went out and 177 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, Buffalo Intl Airport, NY at 00:00Z on 2021-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 630 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, Buffalo Intl Airport, NY at 00:00Z on 2021-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.1939587897Sfc1 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
630 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.7

Open this sounding in Storm Lab

The text

As transmitted.

179 
WFUS51 KBGM 160955
TORBGM
NYC011-099-109-161030-
/O.NEW.KBGM.TO.W.0015.211016T0955Z-211016T1030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Binghamton NY
555 AM EDT Sat Oct 16 2021

The National Weather Service in Binghamton has issued a

* Tornado Warning for...
  Southeastern Seneca County in central New York...
  Cayuga County in central New York...
  North central Tompkins County in central New York...

* Until 630 AM EDT.
    
* At 554 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Kidders, or 15 miles northeast of Dundee, moving
  northeast at 50 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.

* This dangerous storm will be near...
  King Ferry around 600 AM EDT.
  Genoa, Ledyard and Levanna around 605 AM EDT.
  Locke, Venice Center and Scipio Center around 610 AM EDT.
  Moravia, Cascade and Casowasco around 615 AM EDT.
  Owasco, Niles and Sempronius around 620 AM EDT.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4265 7683 4291 7656 4286 7645 4284 7645
      4285 7643 4281 7634 4264 7627 4256 7677
TIME...MOT...LOC 0954Z 239DEG 43KT 4264 7672 

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

$$

MPH
3 follow-up statements
552 
WWUS51 KBGM 161007
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
607 AM EDT Sat Oct 16 2021

NYC099-161016-
/O.CAN.KBGM.TO.W.0015.000000T0000Z-211016T1030Z/
Seneca NY-
607 AM EDT Sat Oct 16 2021

...THE TORNADO WARNING FOR SOUTHEASTERN SENECA COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4284 7645 4285 7643 4281 7634 4271 7629
      4264 7627 4260 7657 4261 7666 4268 7669
      4271 7673 4274 7674 4286 7659
TIME...MOT...LOC 1006Z 237DEG 42KT 4269 7659 

$$

NYC011-109-161030-
/O.CON.KBGM.TO.W.0015.000000T0000Z-211016T1030Z/
Cayuga NY-Tompkins NY-
607 AM EDT Sat Oct 16 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM EDT FOR SOUTHERN
CAYUGA AND NORTH CENTRAL TOMPKINS COUNTIES...
    
At 606 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Ledyard, or 16 miles south of Auburn, moving
northeast at 50 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.

This dangerous storm will be near...
  Venice Center around 610 AM EDT.
  Locke, Moravia and Cascade around 615 AM EDT.
  Montville around 620 AM EDT.
  Niles, Sempronius and Kelloggsville around 625 AM EDT.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4284 7645 4285 7643 4281 7634 4271 7629
      4264 7627 4260 7657 4261 7666 4268 7669
      4271 7673 4274 7674 4286 7659
TIME...MOT...LOC 1006Z 237DEG 42KT 4269 7659 

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

$$

MPH
420 
WWUS51 KBGM 161013
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
613 AM EDT Sat Oct 16 2021

NYC109-161023-
/O.CAN.KBGM.TO.W.0015.000000T0000Z-211016T1030Z/
Tompkins NY-
613 AM EDT Sat Oct 16 2021

...THE TORNADO WARNING FOR NORTH CENTRAL TOMPKINS COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4284 7645 4285 7643 4281 7634 4269 7628
      4266 7628 4265 7651 4265 7661 4276 7663
      4281 7655
TIME...MOT...LOC 1013Z 248DEG 31KT 4272 7654 

$$

NYC011-161030-
/O.CON.KBGM.TO.W.0015.000000T0000Z-211016T1030Z/
Cayuga NY-
613 AM EDT Sat Oct 16 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM EDT FOR
SOUTHEASTERN CAYUGA COUNTY...
    
At 613 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Venice Center, or 15 miles south of Auburn, moving 
east at 35 mph. Strong rotation has been observed with this storm 
near Venice Center.

HAZARD...Tornado and quarter size hail.

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.

This dangerous storm will be near...
  Locke and Cascade around 620 AM EDT.
  Moravia and Montville around 625 AM EDT.
  Niles, Sempronius and Kelloggsville around 630 AM EDT.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4284 7645 4285 7643 4281 7634 4269 7628
      4266 7628 4265 7651 4265 7661 4276 7663
      4281 7655
TIME...MOT...LOC 1013Z 248DEG 31KT 4272 7654 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

MPH
459 
WWUS51 KBGM 161021
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
621 AM EDT Sat Oct 16 2021

NYC011-161030-
/O.CON.KBGM.TO.W.0015.000000T0000Z-211016T1030Z/
Cayuga NY-
621 AM EDT Sat Oct 16 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM EDT FOR
SOUTHEASTERN CAYUGA COUNTY...
    
At 621 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Cascade, or 13 miles southeast of Auburn, moving
northeast at 45 mph.

HAZARD...Tornado and quarter size hail.

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.

This dangerous storm will be near...
  Niles, Sempronius and Kelloggsville around 630 AM EDT.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4285 7643 4281 7634 4272 7629 4269 7649
      4278 7652 4284 7645
TIME...MOT...LOC 1021Z 231DEG 40KT 4276 7646 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 16, 4:07 AM EDTSpecial Weather StatementBGMSteuben38 min
Oct 16, 4:43 AM EDTSpecial Weather StatementBGMSchuyler, Steuben, Yates47 min
Oct 16, 4:49 AM EDTSevere Thunderstorm WarningBGMSchuyler, Steuben, Yates41 min
Oct 16, 5:13 AM EDTSpecial Weather StatementBGMSeneca47 min
Oct 16, 5:31 AM EDTSevere Thunderstorm WarningBGMSchuyler, Seneca, Steuben, Yates44 min
Oct 16, 5:34 AM EDTTornado WarningBGMSchuyler, Seneca, Yates26 min
Oct 16, 6:25 AM EDTTornado WarningBGMCayuga, Cortland, Onondaga35 min
Oct 16, 6:50 AM EDTSpecial Weather StatementBGMOnondaga40 min
Oct 16, 9:33 AM EDTSpecial Weather StatementBGMTompkins27 min
Oct 16, 9:48 AM EDTSevere Thunderstorm WarningBGMCayuga, Cortland, Onondaga, Tompkins42 min
Oct 16, 10:20 AM EDTAreal Flood AdvisoryBGMCayuga, Onondaga3 hr
Oct 16, 10:27 AM EDTSpecial Weather StatementBGMOnondaga33 min
Oct 16, 10:59 AM EDTAreal Flood AdvisoryBGMMadison, Onondaga3 hr
Oct 16, 11:15 AM EDTSpecial Weather StatementBGMOneida30 min
Oct 16, 11:30 AM EDTSevere Thunderstorm WarningBGMCayuga, Cortland, Onondaga, Tompkins20 min
Oct 16, 11:50 AM EDTSpecial Weather StatementBGMChenango25 min
Oct 16, 12:53 PM EDTAreal Flood AdvisoryBGMChenango, Cortland, Madison3 hr
Oct 16, 3:23 PM EDTSpecial Weather StatementBGMSullivan37 min
Oct 16, 4:49 PM EDTRiver Flood WarningBGMOnondaga5 hr

Nearby

Tornado Warnings in New York, 2021Every tornado warning in 2021Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.