Alert archive / New York / Tornado Warnings in 2017

Tornado Warning 7, NWS Buffalo, NY

August 22, 2017Lewis County, New York

NWS Buffalo, NY issued this tornado warning at Aug 22, 2017, 3:11 PM EDT for Lewis County, New York. It was in force for 34 min. 1 report 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
Aug 22, 2017, 3:11 PM EDT (19:11 UTC)
Expired
Aug 22, 2017, 3:45 PM EDT
In force
34 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 24 km from the middle of the area, began a volume at 19:11 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
Aug 22, 3:29 PM EDTTSTM WND DMGWatson, NYTREES AND WIRES 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.

IssuedProductOfficeLasted
Aug 22, 12:23 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.2 hours before the alert went out and 178 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 2017-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 87 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 2017-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
87 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

911 
WFUS51 KBUF 221911
TORBUF
NYC049-221945-
/O.NEW.KBUF.TO.W.0007.170822T1911Z-170822T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Buffalo NY
311 PM EDT TUE AUG 22 2017

The National Weather Service in Buffalo has issued a

* Tornado Warning for...
  East central Lewis County in central New York...

* Until 345 PM EDT.

* At 310 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Lowville, or 21 miles southeast of Fort Drum,
  moving east at 35 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...
  Lowville, New Bremen, Watson, Martinsburg, Croghan, Soft Maple
  Reservoir, Kirschnerville and Sperryville.

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 4373 7564 4381 7566 4397 7516 4397 7515
      4371 7512
TIME...MOT...LOC 1910Z 258DEG 32KT 4378 7555 

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

$$

Church
2 follow-up statements
240 
WWUS51 KBUF 221928
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
328 PM EDT TUE AUG 22 2017

NYC049-221945-
/O.CON.KBUF.TO.W.0007.000000T0000Z-170822T1945Z/
Lewis NY-
328 PM EDT TUE AUG 22 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR EAST
CENTRAL LEWIS COUNTY...
    
At 327 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Lowville, or 19 miles west of Old Forge,
moving east at 35 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...
New Bremen, Watson, Croghan, Soft Maple Reservoir, Kirschnerville,
Beaver Falls and Sperryville.

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 4373 7544 4388 7545 4397 7516 4397 7515
      4371 7512
TIME...MOT...LOC 1927Z 270DEG 32KT 4381 7533 

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

$$

Church
634 
WWUS51 KBUF 221941
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
341 PM EDT TUE AUG 22 2017

NYC049-221950-
/O.EXP.KBUF.TO.W.0007.000000T0000Z-170822T1945Z/
Lewis NY-
341 PM EDT TUE AUG 22 2017

...THE TORNADO WARNING FOR EAST CENTRAL LEWIS COUNTY WILL EXPIRE AT
345 PM EDT...
    
The tornado threat has diminished and the Tornado Warning will be 
allowed to expire at 345 pm. However, damaging winds remain likely 
and a Severe Thunderstorm Warning remains in effect for the area.

A tornado watch remains in effect until 900 PM EDT for central New
York.

LAT...LON 4373 7544 4388 7545 4397 7516 4397 7515
      4371 7512
TIME...MOT...LOC 1940Z 258DEG 32KT 4383 7518 

$$

Church

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 10:39 PM EDTBeach Hazards StatementBUFChautauqua, Erie, Jefferson23 hr
Aug 22, 4:04 AM EDTWind AdvisoryBUFErie, Genesee, Niagara, Orleans13 hr
Aug 22, 4:09 AM EDTLakeshore Flood WarningBUFCayuga, Jefferson, Oswego, Wayne40 hr
Aug 22, 7:16 AM EDTSpecial Weather StatementBUFLewis59 min
Aug 22, 9:51 AM EDTSpecial Marine WarningBUF54 min
Aug 22, 12:05 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie55 min
Aug 22, 12:34 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Orleans, Wayne and 1 more56 min
Aug 22, 12:34 PM EDTTornado WarningBUFCattaraugus, Chautauqua26 min
Aug 22, 12:42 PM EDTSpecial Marine WarningBUF48 min
Aug 22, 12:44 PM EDTSpecial Marine WarningBUF61 min
Aug 22, 12:55 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Erie, Genesee, Livingston, Wyoming65 min
Aug 22, 1:13 PM EDTSpecial Marine WarningBUF62 min
Aug 22, 1:23 PM EDTSevere Thunderstorm WarningBUFCayuga, Monroe, Ontario, Oswego, Wayne67 min
Aug 22, 1:27 PM EDTSpecial Marine WarningBUF63 min
Aug 22, 1:42 PM EDTSpecial Marine WarningBUF63 min
Aug 22, 1:53 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego67 min
Aug 22, 1:56 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Ontario, Wyoming49 min
Aug 22, 2:05 PM EDTSevere Thunderstorm WarningBUFCayuga, Lewis, Oswego55 min
Aug 22, 2:12 PM EDTTornado WarningBUFAllegany, Livingston33 min
Aug 22, 2:47 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego58 min
Aug 22, 2:48 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 1 more57 min
Aug 22, 3:15 PM EDTTornado WarningBUFLewis30 min
Aug 22, 3:20 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston, Wyoming55 min
Aug 22, 3:45 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wyoming45 min
Aug 22, 4:28 PM EDTSpecial Marine WarningBUF92 min
Aug 22, 4:29 PM EDTSevere Thunderstorm WarningBUFOntario19 min
Aug 22, 4:40 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne35 min
Aug 22, 4:53 PM EDTSpecial Weather StatementBUFJefferson67 min
Aug 22, 5:10 PM EDTSevere Thunderstorm WarningBUFOswego35 min
Aug 22, 5:28 PM EDTSpecial Marine WarningBUF47 min
Aug 22, 5:29 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis61 min
Aug 22, 6:28 PM EDTSpecial Marine WarningBUF32 min
Aug 22, 6:28 PM EDTSevere Thunderstorm WarningBUFErie, Niagara47 min
Aug 22, 7:00 PM EDTSpecial Marine WarningBUF30 min
Aug 22, 7:13 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans, Wyoming22 min

Nearby

Tornado Warnings in New York, 2017Every tornado warning in 2017Tornadoes in 2017

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.