Alert archive / New York / Tornado Warnings in 2021
Tornado Warning 12, NWS New York, NY
NWS New York, NY issued this tornado warning at Nov 13, 2021, 2:53 PM EST for Nassau County, Suffolk County, New York. It was in force for 37 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
- Nov 13, 2021, 2:53 PM EST (19:53 UTC)
- Expired
- Nov 13, 2021, 3:30 PM EST
- In force
- 37 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Nassau County, NY, Suffolk County, NY
The radar
The Brookhaven radar (KOKX), 52 km from the middle of the area, began a volume at 19:55 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 13, 2:55 PM EST | TORNADO | 1 N Levittown, NY | EF-0 WITH 85 MPH WINDS CONFIRMED IN LEVITTOWN WITH DOWNED TREES AND WIRES ON TULIP ST. SIGNIFICANT DAMAGE ALSO FOUND NEAR CLOVER LANE, WHERE A LARGE TREE WAS FELLED ONTO A HOUSE. |
| Nov 13, 3:00 PM EST | TSTM WND DMG | 2 Ene Bethpage, NY | LARGE TREE BRANCHES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 13, 12:27 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.9 hours before the alert went out and 52 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1435 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
848
WFUS51 KOKX 131953
TOROKX
NYC059-103-132030-
/O.NEW.KOKX.TO.W.0012.211113T1953Z-211113T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New York NY
253 PM EST Sat Nov 13 2021
The National Weather Service in Upton NY has issued a
* Tornado Warning for...
West central Suffolk County in southeastern New York...
East central Nassau County in southeastern New York...
* Until 330 PM EST.
* At 252 PM EST, a severe thunderstorm capable of producing a tornado
was located over Levittown, moving northeast at 35 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...
Farmingdale around 300 PM EST.
Plainview and Melville around 305 PM EST.
Huntington Station and Deer Park around 310 PM EST.
Huntington and Dix Hills around 315 PM EST.
Commack and Centerport around 320 PM 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 4066 7356 4071 7361 4092 7337 4080 7323
TIME...MOT...LOC 1952Z 231DEG 31KT 4072 7355
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
JC2 follow-up statements
446
WWUS51 KOKX 132009
SVSOKX
Severe Weather Statement
National Weather Service New York NY
309 PM EST Sat Nov 13 2021
NYC059-132019-
/O.CAN.KOKX.TO.W.0012.000000T0000Z-211113T2030Z/
Nassau NY-
309 PM EST Sat Nov 13 2021
...THE TORNADO WARNING FOR EAST CENTRAL NASSAU COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM EST for
southeastern New York.
LAT...LON 4075 7340 4082 7344 4092 7337 4080 7323
TIME...MOT...LOC 2009Z 231DEG 31KT 4081 7340
$$
NYC103-132030-
/O.CON.KOKX.TO.W.0012.000000T0000Z-211113T2030Z/
Suffolk NY-
309 PM EST Sat Nov 13 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EST FOR WEST
CENTRAL SUFFOLK COUNTY...
At 309 PM EST, a severe thunderstorm capable of producing a tornado
was located over Huntington Station, moving northeast at 35 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...
Centerport around 315 PM EST.
Commack around 320 PM 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 4075 7340 4082 7344 4092 7337 4080 7323
TIME...MOT...LOC 2009Z 231DEG 31KT 4081 7340
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
JC837
WWUS51 KOKX 132022
SVSOKX
Severe Weather Statement
National Weather Service New York NY
322 PM EST Sat Nov 13 2021
NYC103-132032-
/O.EXP.KOKX.TO.W.0012.000000T0000Z-211113T2030Z/
Suffolk NY-
322 PM EST Sat Nov 13 2021
...THE TORNADO WARNING FOR WEST CENTRAL SUFFOLK COUNTY WILL EXPIRE AT
330 PM EST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 700 PM EST for
southeastern New York.
LAT...LON 4075 7340 4082 7344 4092 7337 4080 7323
TIME...MOT...LOC 2022Z 231DEG 31KT 4087 7331
$$
JCThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 13, 12:47 PM EST | Special Weather Statement | OKX | Orange | 88 min |
| Nov 13, 1:02 PM EST | Severe Thunderstorm Warning | OKX | Orange | 47 min |
| Nov 13, 1:26 PM EST | Severe Thunderstorm Warning | OKX | Orange, Putnam, Rockland, Westchester | 49 min |
| Nov 13, 1:48 PM EST | Severe Thunderstorm Warning | OKX | Bronx, Kings, New York, Queens, Richmond | 42 min |
| Nov 13, 1:54 PM EST | Special Marine Warning | OKX | 96 min | |
| Nov 13, 2:11 PM EST | Special Weather Statement | OKX | Putnam | 49 min |
| Nov 13, 2:22 PM EST | Severe Thunderstorm Warning | OKX | Kings, Nassau, Queens | 38 min |
| Nov 13, 2:47 PM EST | Special Marine Warning | OKX | 58 min | |
| Nov 13, 2:59 PM EST | Special Marine Warning | OKX | 61 min | |
| Nov 13, 3:18 PM EST | Special Weather Statement | OKX | Suffolk | 57 min |
| Nov 13, 3:20 PM EST | Tornado Warning | OKX | Suffolk | 25 min |
| Nov 13, 3:36 PM EST | Special Marine Warning | OKX | 54 min | |
| Nov 13, 3:40 PM EST | Tornado Warning | OKX | Suffolk | 24 min |
| Nov 13, 3:54 PM EST | Special Marine Warning | OKX | 66 min | |
| Nov 13, 3:57 PM EST | Tornado Warning | OKX | Suffolk | 18 min |
| Nov 13, 4:07 PM EST | Tornado Warning | OKX | Suffolk | 23 min |
| Nov 13, 4:11 PM EST | Special Marine Warning | OKX | 47 min | |
| Nov 13, 4:18 PM EST | Severe Thunderstorm Warning | OKX | Suffolk | 27 min |
| Nov 13, 4:30 PM EST | Severe Thunderstorm Warning | OKX | Suffolk | 30 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.