Alert archive / New York / Tornado Warnings in 2021

Tornado Warning 17, NWS Binghamton, NY

November 12, 2021Broome County, Chenango County, Delaware County, New York; Susquehanna County, Pennsylvania

NWS Binghamton, NY issued this tornado warning at Nov 12, 2021, 7:16 AM EST for Broome County, Chenango County, Delaware County, New York; Susquehanna County, Pennsylvania. It was in force for 29 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: Nov 12, 2021, 7:16 AM EST (12:16 UTC)
Expired: Nov 12, 2021, 7:45 AM EST
In force: 29 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Broome County, NY, Chenango County, NY, Delaware County, NY, Susquehanna County, PA

The radar

The Binghamton radar (KBGM), 39 km from the middle of the area, began a volume at 12:19 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
Nov 12, 7:17 AM EST	TSTM WND DMG	2 Sse Windsor, NY	LARGE TREE DOWN ON RT 79. ROAD CURRENTLY CLOSED.
Nov 12, 7:17 AM EST	TSTM WND DMG	5 Sse Windsor, NY	VIA COUNTY DISPATCH FEED. TREE AND WIRES DOWN. RADAR ESTIMATED TIME.
Nov 12, 7:19 AM EST	TSTM WND DMG	2 Se Windsor, NY	TREE DOWN ON ROAD.

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, 0.3 hours before the alert went out and 156 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: 607 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 600 m²/s²
0-3 km storm-relative helicity: 766 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

966 
WFUS51 KBGM 121216
TORBGM
NYC007-017-025-PAC115-121245-
/O.NEW.KBGM.TO.W.0017.211112T1216Z-211112T1245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Binghamton NY
716 AM EST Fri Nov 12 2021

The National Weather Service in Binghamton has issued a

* Tornado Warning for...
  Southeastern Broome County in central New York...
  West central Delaware County in central New York...
  South central Chenango County in central New York...
  Northeastern Susquehanna County in northeastern Pennsylvania...

* Until 745 AM EST.
    
* At 716 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Windsor, or 9 miles west of Deposit, 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.

* This dangerous storm will be near...
  Deposit, Sanford and Harpursville around 725 AM EST.
  Nineveh around 730 AM EST.
  Afton around 735 AM EST.
  Bainbridge around 740 AM EST.

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 4191 7556 4202 7575 4233 7553 4220 7531
TIME...MOT...LOC 1216Z 217DEG 38KT 4203 7560 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

MDP

2 follow-up statements

893 
WWUS51 KBGM 121224
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
724 AM EST Fri Nov 12 2021

PAC115-121232-
/O.CAN.KBGM.TO.W.0017.000000T0000Z-211112T1245Z/
Susquehanna PA-
724 AM EST Fri Nov 12 2021

...THE TORNADO WARNING FOR NORTHEASTERN SUSQUEHANNA COUNTY IS
CANCELLED...
    
The thunderstorm with strong rotation, which prompted the warning, 
has moved north out of the warned area. Therefore, the warning has 
been cancelled.

LAT...LON 4201 7554 4205 7569 4233 7553 4220 7531
TIME...MOT...LOC 1222Z 209DEG 37KT 4210 7558 

$$

NYC007-017-025-121245-
/O.CON.KBGM.TO.W.0017.000000T0000Z-211112T1245Z/
Broome NY-Delaware NY-Chenango NY-
724 AM EST Fri Nov 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 AM EST FOR
SOUTHEASTERN BROOME...WEST CENTRAL DELAWARE AND SOUTH CENTRAL
CHENANGO COUNTIES...
    
At 722 AM EST, a severe thunderstorm capable of producing a tornado
was located near Windsor, or 8 miles west of Deposit, 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.

This dangerous storm will be near...
  Afton around 735 AM EST.
  Bainbridge around 745 AM EST.

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 4201 7554 4205 7569 4233 7553 4220 7531
TIME...MOT...LOC 1222Z 209DEG 37KT 4210 7558 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

MDP

565 
WWUS51 KBGM 121240
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
740 AM EST Fri Nov 12 2021

NYC007-017-025-121249-
/O.EXP.KBGM.TO.W.0017.000000T0000Z-211112T1245Z/
Broome NY-Delaware NY-Chenango NY-
740 AM EST Fri Nov 12 2021

...THE TORNADO WARNING FOR SOUTHEASTERN BROOME...WEST CENTRAL
DELAWARE AND SOUTH CENTRAL CHENANGO COUNTIES WILL EXPIRE AT 745 AM
EST...
                
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.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Binghamton.

LAT...LON 4201 7554 4205 7569 4233 7553 4220 7531
TIME...MOT...LOC 1239Z 217DEG 38KT 4223 7545 

$$

MDP

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 12, 6:04 AM EST	Special Weather Statement	BGM	Broome, Cortland, Tioga, Tompkins	41 min
Nov 12, 6:22 AM EST	Special Weather Statement	BGM	Onondaga	23 min
Nov 12, 6:45 AM EST	Special Weather Statement	BGM	Broome, Chenango, Cortland, Madison, Oneida, Onondaga	60 min
Nov 12, 7:44 AM EST	Areal Flood Advisory	BGM	Chemung, Tioga, Tompkins	3 hr
Nov 12, 7:57 AM EST	Areal Flood Advisory	BGM	Cayuga, Cortland, Onondaga	3 hr
Nov 12, 8:03 AM EST	Special Weather Statement	BGM	Delaware, Oneida, Otsego	27 min
Nov 12, 8:05 AM EST	Special Weather Statement	BGM	Sullivan	55 min
Nov 12, 9:02 AM EST	Special Weather Statement	BGM	Sullivan	28 min
Nov 12, 9:38 AM EST	Areal Flood Advisory	BGM	Chenango, Madison, Oneida, Otsego	3 hr
Nov 12, 6:49 AM EST	Special Weather Statement	BGM	Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming	56 min

Nearby

Tornado Warnings in New York, 2021 Tornado Warnings in Pennsylvania, 2021 Every tornado warning in 2021 Tornadoes 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.