Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 85, NWS Buffalo, NY

October 17, 2016Jefferson County, Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Oct 17, 2016, 6:42 PM EDT for Jefferson County, Lewis County, New York. It was in force for 63 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 17, 2016, 6:42 PM EDT (22:42 UTC)
Expired
Oct 17, 2016, 7:45 PM EDT
In force
63 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 51 km from the middle of the area, began a volume at 22:46 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 12:00Z, 10.7 hours before the alert went out and 237 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 12:00Z on 2016-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 250 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 12:00Z on 2016-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.19395878Sfc1 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
250 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

168 
WUUS51 KBUF 172242
SVRBUF
NYC045-049-172345-
/O.NEW.KBUF.SV.W.0085.161017T2242Z-161017T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
642 PM EDT MON OCT 17 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL LEWIS COUNTY IN CENTRAL NEW YORK...
  CENTRAL JEFFERSON COUNTY IN CENTRAL NEW YORK...

* UNTIL 745 PM EDT.

* AT 642 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 16 MILES
  SOUTHWEST OF CEDAR POINT STATE PARK...OR 29 MILES WEST OF
  WATERTOWN...MOVING EAST AT 35 MPH.

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS POSSIBLE TO
           MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  WATERTOWN...FORT DRUM...DEXTER...GLEN PARK...HERRINGS...ADAMS
  CENTER...SACKETS HARBOR AND BLACK RIVER.

THIS INCLUDES INTERSTATE 81 BETWEEN EXITS 43 AND 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4405 7563 4381 7575 4396 7642 4396 7634
      4402 7636 4403 7637 4405 7642 4410 7643
      4414 7635 4419 7632
TIME...MOT...LOC 2242Z 285DEG 32KT 4409 7648 

HAIL...<.75IN
WIND...70MPH
 
$$

WOOD
2 follow-up statements
916 
WWUS51 KBUF 172317
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
717 PM EDT MON OCT 17 2016

NYC045-049-172345-
/O.CON.KBUF.SV.W.0085.000000T0000Z-161017T2345Z/
LEWIS NY-JEFFERSON NY-
717 PM EDT MON OCT 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR WEST CENTRAL LEWIS AND CENTRAL JEFFERSON COUNTIES...

AT 717 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER DEXTER...OR 7
MILES WEST OF WATERTOWN...MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
WATERTOWN...FORT DRUM...DEXTER...GLEN PARK...HERRINGS...ADAMS
CENTER...SACKETS HARBOR AND BLACK RIVER.

THIS INCLUDES INTERSTATE 81 BETWEEN EXITS 43 AND 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4405 7563 4381 7575 4394 7633 4405 7626
      4416 7616
TIME...MOT...LOC 2317Z 285DEG 32KT 4401 7606 

HAIL...<.75IN
WIND...60MPH
 
$$

WOOD
603 
WWUS51 KBUF 172340
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
740 PM EDT MON OCT 17 2016

NYC045-049-172350-
/O.EXP.KBUF.SV.W.0085.000000T0000Z-161017T2345Z/
LEWIS NY-JEFFERSON NY-
740 PM EDT MON OCT 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL LEWIS AND CENTRAL
JEFFERSON COUNTIES WILL EXPIRE AT 745 PM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE...THE WARNING WILL
BE ALLOWED TO EXPIRE.

LAT...LON 4405 7563 4381 7575 4394 7633 4405 7626
      4416 7616
TIME...MOT...LOC 2340Z 285DEG 32KT 4391 7583 

$$

WOOD

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 6:49 AM EDTSmall Craft AdvisoryBUF40 hr
Oct 17, 1:21 PM EDTWind AdvisoryBUFChautauqua, Erie, Genesee, Jefferson, Monroe, Niagara and 2 more30 hr
Oct 17, 6:07 PM EDTSpecial Marine WarningBUF83 min
Oct 17, 6:34 PM EDTSpecial Marine WarningBUF86 min
Oct 17, 6:55 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego65 min
Oct 17, 7:26 PM EDTSevere Thunderstorm WarningBUFLewis, Oswego64 min
Oct 17, 7:31 PM EDTSpecial Marine WarningBUF44 min

Nearby

Severe Thunderstorm Warnings in New York, 2016Every severe thunderstorm warning in 2016

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.