Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 11, NWS Buffalo, NY

June 20, 2016Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 20, 2016, 9:04 PM EDT for Jefferson County, New York. It was in force for 56 min. 6 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
Jun 20, 2016, 9:04 PM EDT (01:04 UTC)
Expired
Jun 20, 2016, 10:00 PM EDT
In force
56 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 61 km from the middle of the area, began a volume at 01:08 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
Jun 20, 9:20 PM EDTTSTM WND DMG4 E Millen Bay, NYTREES DOWN ACROSS COUNTY RT. 9 AND RT. 4
Jun 20, 9:34 PM EDTTSTM WND DMG2 Sse Theresa, NYTREE ACROSS SCHELL ROAD
Jun 20, 9:40 PM EDTTSTM WND DMGEvans Mills, NYWIRES DOWN ACROSS RT. 11
Jun 20, 9:42 PM EDTTSTM WND DMG2 Ssw Evans Mills, NYWIRES DOWN ACROSS ROAD NEAR RT. 11 AND WADDINGHAM ROAD
Jun 20, 9:51 PM EDTTSTM WND DMGBrownville, NYNUMEROUS TREES DOWN IN BROWNVILLE
Jun 20, 10:05 PM EDTHAIL 0.52 N Dexter, NY

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
Jun 20, 8:06 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.1 hours before the alert went out and 249 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 00:00Z on 2016-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2016-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2305 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

077 
WUUS51 KBUF 210104
SVRBUF
NYC045-210200-
/O.NEW.KBUF.SV.W.0011.160621T0104Z-160621T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
904 PM EDT MON JUN 20 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 1000 PM EDT

* AT 904 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 11 MILES NORTH OF WELLESLEY ISLAND STATE PARK TO 23
  MILES WEST OF CEDAR POINT STATE PARK...MOVING EAST AT 55 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  FORT DRUM...CLAYTON...DEXTER...GLEN PARK...CEDAR POINT STATE PARK...
  REDWOOD...KRING POINT STATE PARK AND WELLESLEY ISLAND STATE PARK.

THIS INCLUDES INTERSTATE 81 BETWEEN EXITS 47 AND 52.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4440 7583 4439 7584 4424 7550 4400 7572
      4399 7635 4402 7636 4406 7642 4410 7643
      4414 7635 4420 7631 4422 7620 4424 7617
      4429 7615 4435 7601 4435 7595 4440 7586
TIME...MOT...LOC 0104Z 264DEG 46KT 4447 7610 4410 7665 

HAIL...1.00IN
WIND...60MPH
 
$$

HITCHCOCK
2 follow-up statements
573 
WWUS51 KBUF 210116
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
916 PM EDT MON JUN 20 2016

NYC045-210200-
/O.CON.KBUF.SV.W.0011.000000T0000Z-160621T0200Z/
JEFFERSON NY-
916 PM EDT MON JUN 20 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHERN JEFFERSON COUNTY...

AT 915 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR KRING POINT STATE PARK TO 11 MILES SOUTHWEST OF
CEDAR POINT STATE PARK...MOVING EAST AT 60 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE... 

CAPE VINCENT...FORT DRUM...CLAYTON...DEXTER...GLEN PARK...CEDAR
POINT STATE PARK...REDWOOD...KRING POINT STATE PARK AND WELLESLEY
ISLAND STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4440 7583 4439 7584 4424 7550 4400 7572
      4399 7635 4403 7636 4406 7642 4410 7643
      4414 7635 4420 7631 4422 7620 4424 7617
      4429 7614 4430 7610 4435 7601 4435 7595
      4440 7586
TIME...MOT...LOC 0115Z 271DEG 51KT 4442 7592 4409 7637 

HAIL...1.00IN
WIND...70MPH
 
$$

HITCHCOCK
220 
WWUS51 KBUF 210135
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
935 PM EDT MON JUN 20 2016

NYC045-210200-
/O.CON.KBUF.SV.W.0011.000000T0000Z-160621T0200Z/
JEFFERSON NY-
935 PM EDT MON JUN 20 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHERN JEFFERSON COUNTY...

AT 935 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES EAST OF REDWOOD TO NEAR DEXTER...MOVING EAST AT
45 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
FORT DRUM...CLAYTON...DEXTER...GLEN PARK...CEDAR POINT STATE PARK...
REDWOOD...KRING POINT STATE PARK AND WELLESLEY ISLAND STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4440 7583 4439 7584 4424 7550 4400 7572
      4399 7635 4403 7636 4406 7642 4410 7643
      4414 7635 4420 7631 4422 7620 4424 7617
      4429 7614 4430 7610 4435 7601 4435 7595
      4440 7586
TIME...MOT...LOC 0135Z 287DEG 38KT 4429 7567 4405 7611 

HAIL...1.00IN
WIND...70MPH
 
$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 8:57 PM EDTSpecial Marine WarningBUF93 min
Jun 20, 9:20 PM EDTSpecial Marine WarningBUF55 min
Jun 20, 9:26 PM EDTSpecial Weather StatementBUFErie34 min
Jun 20, 9:30 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Wyoming45 min
Jun 20, 9:43 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis62 min
Jun 20, 9:53 PM EDTSevere Thunderstorm WarningBUFJefferson37 min
Jun 20, 10:11 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Livingston, Wyoming49 min
Jun 20, 10:26 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis64 min
Jun 20, 10:33 PM EDTSevere Thunderstorm WarningBUFOswego27 min
Jun 20, 10:36 PM EDTSpecial Marine WarningBUF39 min
Jun 20, 10:39 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston, Wyoming51 min
Jun 20, 10:53 PM EDTSevere Thunderstorm WarningBUFOswego52 min
Jun 20, 10:58 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Erie, Livingston, Wyoming47 min
Jun 20, 11:13 PM EDTSevere Thunderstorm WarningBUFCayuga, Wayne37 min
Jun 20, 11:20 PM EDTFlash Flood WarningBUFErie, Wyoming3 hr
Jun 20, 11:34 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Livingston, Wyoming41 min
Jun 20, 11:43 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario23 min
Jun 21, 12:15 AM EDTSevere Thunderstorm WarningBUFAllegany30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.