Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 53, NWS Buffalo, NY

August 13, 20164 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 13, 2016, 6:25 PM EDT for 4 counties in New York. It was in force for 50 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: Aug 13, 2016, 6:25 PM EDT (22:25 UTC)
Expired: Aug 13, 2016, 7:15 PM EDT
In force: 50 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Allegany County, NY, Livingston County, NY, Ontario County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 22:26 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 13, 6:17 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.4 hours before the alert went out and 87 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: 709 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

082 
WUUS51 KBUF 132225
SVRBUF
NYC003-051-069-121-132315-
/O.NEW.KBUF.SV.W.0053.160813T2225Z-160813T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
625 PM EDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  LIVINGSTON COUNTY IN WESTERN NEW YORK...
  NORTH CENTRAL ALLEGANY COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 715 PM EDT

* AT 625 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR AVON TO NEAR LETCHWORTH STATE PARK TO NEAR
  PORTAGEVILLE...MOVING EAST AT 25 MPH.

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  CANANDAIGUA...GENESEO...DANSVILLE...LETCHWORTH STATE PARK...AVON...
  MOUNT MORRIS...CONESUS AND BRISTOL.

THIS INCLUDES INTERSTATE 390 BETWEEN EXITS 4 AND 10.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4245 7822 4264 7797 4290 7779 4295 7717
      4276 7730 4258 7754 4258 7766 4254 7766
      4253 7772 4249 7772
TIME...MOT...LOC 2225Z 257DEG 23KT 4286 7775 4266 7789 4252 7808 

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

HIBBERT

2 follow-up statements

595 
WWUS51 KBUF 132301
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
701 PM EDT SAT AUG 13 2016

NYC003-051-069-121-132315-
/O.CON.KBUF.SV.W.0053.000000T0000Z-160813T2315Z/
ONTARIO NY-LIVINGSTON NY-ALLEGANY NY-WYOMING NY-
701 PM EDT SAT AUG 13 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR WESTERN ONTARIO...LIVINGSTON...NORTH CENTRAL ALLEGANY AND
SOUTHEASTERN WYOMING COUNTIES...

AT 701 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR RUSHVILLE TO NEAR DANSVILLE TO NEAR HOUGHTON...
MOVING NORTHEAST AT 30 MPH.

HAZARD...70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
CANANDAIGUA...GENESEO...DANSVILLE...LETCHWORTH STATE PARK...AVON...
MOUNT MORRIS...CONESUS AND BRISTOL.

THIS INCLUDES INTERSTATE 390 BETWEEN EXITS 4 AND 10.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4245 7822 4264 7797 4290 7779 4295 7717
      4276 7730 4258 7754 4258 7766 4254 7766
      4253 7772 4249 7772
TIME...MOT...LOC 2301Z 236DEG 26KT 4274 7719 4258 7777 4249 7816 

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

HIBBERT

910 
WWUS51 KBUF 132317
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
717 PM EDT SAT AUG 13 2016

NYC003-051-069-121-132327-
/O.EXP.KBUF.SV.W.0053.000000T0000Z-160813T2315Z/
ONTARIO NY-LIVINGSTON NY-ALLEGANY NY-WYOMING NY-
717 PM EDT SAT AUG 13 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ONTARIO...
LIVINGSTON...NORTH CENTRAL ALLEGANY AND SOUTHEASTERN WYOMING COUNTIES
HAS EXPIRED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE...THE WARNING
HAS BEEN ALLOWED TO EXPIRE.  HOWEVER HEAVY RAIN IS STILL LIKELY WITH
THESE THUNDERSTORMS AND OTHERS THAT WILL FOLLOW THROUGH THE EVENING
HOURS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT FOR
WESTERN NEW YORK.

LAT...LON 4245 7822 4264 7797 4290 7779 4295 7717
      4276 7730 4258 7754 4258 7766 4254 7766
      4253 7772 4249 7772
TIME...MOT...LOC 2314Z 257DEG 23KT 4274 7719 4258 7777 4249 7816 

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 8:11 AM EDT	Special Weather Statement	BUF	Jefferson	34 min
Aug 13, 8:50 AM EDT	Special Weather Statement	BUF	Lewis	40 min
Aug 13, 11:59 AM EDT	Special Weather Statement	BUF	Erie	46 min
Aug 13, 12:34 PM EDT	Special Weather Statement	BUF	Genesee, Monroe	41 min
Aug 13, 1:35 PM EDT	Special Weather Statement	BUF	Monroe, Wayne	40 min
Aug 13, 1:48 PM EDT	Special Marine Warning	BUF		57 min
Aug 13, 2:14 PM EDT	Special Weather Statement	BUF	Wayne	31 min
Aug 13, 2:31 PM EDT	Special Marine Warning	BUF		59 min
Aug 13, 2:42 PM EDT	Special Marine Warning	BUF		63 min
Aug 13, 2:48 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	57 min
Aug 13, 2:50 PM EDT	Special Weather Statement	BUF	Erie	25 min
Aug 13, 3:05 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Livingston, Wyoming	55 min
Aug 13, 3:18 PM EDT	Special Marine Warning	BUF		42 min
Aug 13, 3:23 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	67 min
Aug 13, 3:24 PM EDT	Special Weather Statement	BUF	Cattaraugus	36 min
Aug 13, 3:41 PM EDT	Small Craft Advisory	BUF		28 hr
Aug 13, 3:50 PM EDT	Special Marine Warning	BUF		115 min
Aug 13, 3:51 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wayne	54 min
Aug 13, 3:58 PM EDT	Special Weather Statement	BUF	Wyoming	32 min
Aug 13, 4:03 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wyoming	42 min
Aug 13, 4:21 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	39 min
Aug 13, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	27 min
Aug 13, 4:41 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	26 min
Aug 13, 4:51 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	39 min
Aug 13, 5:03 PM EDT	Special Marine Warning	BUF		57 min
Aug 13, 5:17 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	43 min
Aug 13, 5:54 PM EDT	Special Weather Statement	BUF	Livingston, Wyoming	36 min
Aug 13, 5:58 PM EDT	Special Marine Warning	BUF		92 min
Aug 13, 6:07 PM EDT	Special Marine Warning	BUF		83 min
Aug 13, 6:45 PM EDT	Special Marine Warning	BUF		90 min
Aug 13, 7:22 PM EDT	Special Weather Statement	BUF	Cattaraugus	38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.