Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 15, NWS Buffalo, NY

June 20, 20164 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 20, 2016, 10:11 PM EDT for 4 counties in New York. It was in force for 49 min. 11 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, 10:11 PM EDT (02:11 UTC)
Expired: Jun 20, 2016, 11:00 PM EDT
In force: 49 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Erie County, NY, Genesee County, NY, Livingston County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 33 km from the middle of the area, began a volume at 02:11 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

Time	Report	Where	Remark
Jun 20, 10:11 PM EDT	HAIL 0.88	3 Sse Orchard Park, NY
Jun 20, 10:14 PM EDT	TSTM WND DMG	Bennington, NY	MULTIPLE REPORTS OF TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR
Jun 20, 10:15 PM EDT	TSTM WND DMG	1 Se East Aurora, NY	TREE DOWN AT 227 OLEAN ROAD
Jun 20, 10:21 PM EDT	TSTM WND DMG	2 Se Wales Center, NY	TREES DOWN ON STRYKERSVILLE ROAD
Jun 20, 10:28 PM EDT	TSTM WND DMG	Orangeville Center, NY	TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR
Jun 20, 10:29 PM EDT	TSTM WND DMG	Sheldon, NY	TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR
Jun 20, 10:29 PM EDT	TSTM WND DMG	Strykersville, NY	TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR
Jun 20, 10:34 PM EDT	TSTM WND DMG	Warsaw, NY	TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR
Jun 20, 10:41 PM EDT	TSTM WND DMG	1 N Java Center, NY	SEVERAL TREES SNAPPED OR UPROOTED
Jun 20, 10:49 PM EDT	TSTM WND DMG	2 Ene Eden, NY	TREE DOWN ON SISSON HIGHWAY
Jun 20, 11:07 PM EDT	TSTM WND DMG	1 W Chaffee, NY	TREE DOWN ON SAVAGE RD

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
Jun 20, 8:06 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.2 hours before the alert went out and 30 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: 874 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1626 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

827 
WUUS51 KBUF 210211
SVRBUF
NYC029-037-051-121-210300-
/O.NEW.KBUF.SV.W.0015.160621T0211Z-160621T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1011 PM EDT MON JUN 20 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK...
  NORTHWESTERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHERN GENESEE COUNTY IN WESTERN NEW YORK...
  WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 1100 PM EDT

* AT 1010 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BENNINGTON...
  OR 7 MILES SOUTHWEST OF DARIEN LAKES STATE PARK...MOVING EAST AT 30
  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...
  WEST SENECA...BATAVIA...HAMBURG...GENESEO...EAST AURORA...DARIEN LAKES
  STATE PARK...EVANS AND BOSTON.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 57A AND 57...AND NEAR EXIT
47.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4250 7897 4269 7906 4301 7816 4304 7794
      4280 7780 4256 7835
TIME...MOT...LOC 0210Z 290DEG 28KT 4282 7847 

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

APFFEL

2 follow-up statements

590 
WWUS51 KBUF 210233
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1033 PM EDT MON JUN 20 2016

NYC029-037-051-121-210300-
/O.CON.KBUF.SV.W.0015.000000T0000Z-160621T0300Z/
ERIE NY-LIVINGSTON NY-GENESEE NY-WYOMING NY-
1033 PM EDT MON JUN 20 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR SOUTHERN ERIE...NORTHWESTERN LIVINGSTON...SOUTHEASTERN GENESEE
AND WYOMING COUNTIES...

AT 1032 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER VARYSBURG...OR
13 MILES SOUTHEAST OF DARIEN LAKES STATE PARK...MOVING EAST AT 30 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...
HAMBURG...GENESEO...EAST AURORA...EVANS...BOSTON...EDEN...PERRY AND WARSAW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4250 7897 4269 7906 4282 7843 4294 7814
      4294 7802 4280 7780 4256 7835
TIME...MOT...LOC 0232Z 290DEG 28KT 4276 7825 

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

APFFEL

801 
WWUS51 KBUF 210259
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1059 PM EDT MON JUN 20 2016

NYC029-037-051-121-210308-
/O.EXP.KBUF.SV.W.0015.000000T0000Z-160621T0300Z/
ERIE NY-LIVINGSTON NY-GENESEE NY-WYOMING NY-
1059 PM EDT MON JUN 20 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ERIE...NORTHWESTERN
LIVINGSTON...SOUTHEASTERN GENESEE AND WYOMING COUNTIES WILL EXPIRE AT
1100 PM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA WHERE A
NEW WARNING HAS BEEN ISSUED. THEREFORE THE PREVIOUS WARNING WILL BE
ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR
WESTERN NEW YORK.

LAT...LON 4250 7897 4269 7906 4282 7843 4294 7814
      4294 7802 4280 7780 4256 7835
TIME...MOT...LOC 0258Z 290DEG 28KT 4276 7825 

$$

APFFEL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:57 PM EDT	Special Marine Warning	BUF		93 min
Jun 20, 9:04 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	56 min
Jun 20, 9:20 PM EDT	Special Marine Warning	BUF		55 min
Jun 20, 9:26 PM EDT	Special Weather Statement	BUF	Erie	34 min
Jun 20, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	45 min
Jun 20, 9:43 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	62 min
Jun 20, 9:53 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	37 min
Jun 20, 10:26 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	64 min
Jun 20, 10:33 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	27 min
Jun 20, 10:36 PM EDT	Special Marine Warning	BUF		39 min
Jun 20, 10:39 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	51 min
Jun 20, 10:53 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	52 min
Jun 20, 10:58 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Livingston, Wyoming	47 min
Jun 20, 11:13 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	37 min
Jun 20, 11:20 PM EDT	Flash Flood Warning	BUF	Erie, Wyoming	3 hr
Jun 20, 11:34 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	41 min
Jun 20, 11:43 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	23 min
Jun 21, 12:15 AM EDT	Severe Thunderstorm Warning	BUF	Allegany	30 min

Nearby

Severe Thunderstorm Warnings in New York, 2016 Every 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.