Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 24, NWS Buffalo, NY

June 21, 2016Allegany County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 21, 2016, 12:15 AM EDT for Allegany County, New York. It was in force for 30 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: Jun 21, 2016, 12:15 AM EDT (04:15 UTC)
Expired: Jun 21, 2016, 12:45 AM EDT
In force: 30 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 98 km from the middle of the area, began a volume at 04:18 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 21, 12:20 AM EDT	TSTM WND DMG	3 Se Birdsall, NY	TREES AND WIRES DOWN. TIME ESTIMATED FROM RADAR.

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, 4.3 hours before the alert went out and 95 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.

768 
WUUS51 KBUF 210415
SVRBUF
NYC003-210445-
/O.NEW.KBUF.SV.W.0024.160621T0415Z-160621T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1215 AM EDT TUE JUN 21 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ALLEGANY COUNTY IN WESTERN NEW YORK...

* UNTIL 1245 AM EDT

* AT 1214 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES WEST OF
  ARKPORT...OR 10 MILES WEST OF HORNELL...MOVING EAST AT 35 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  ALFRED...ANGELICA...ALMOND...WEST ALMOND AND BIRDSALL. 

THIS INCLUDES INTERSTATE 86 BETWEEN EXITS 31 AND 33.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4226 7804 4243 7800 4239 7773 4219 7774
TIME...MOT...LOC 0414Z 281DEG 32KT 4237 7786 

HAIL...0.75IN
WIND...60MPH
 
$$

APFFEL

1 follow-up statement

187 
WWUS51 KBUF 210445
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1245 AM EDT TUE JUN 21 2016

NYC003-210454-
/O.EXP.KBUF.SV.W.0024.000000T0000Z-160621T0445Z/
ALLEGANY NY-
1245 AM EDT TUE JUN 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ALLEGANY COUNTY
WILL EXPIRE AT 1245 AM EDT...
        
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 100 AM EDT FOR
WESTERN NEW YORK.

LAT...LON 4226 7804 4243 7800 4239 7773 4219 7774
TIME...MOT...LOC 0442Z 281DEG 32KT 4237 7786 

$$

HITCHCOCK

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, 10:11 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Livingston, Wyoming	49 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

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.