Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 46, NWS Buffalo, NY

August 13, 20165 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 13, 2016, 3:51 PM EDT for 5 counties in New York. It was in force for 54 min. 5 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: Aug 13, 2016, 3:51 PM EDT (19:51 UTC)
Expired: Aug 13, 2016, 4:45 PM EDT
In force: 54 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Genesee County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 93 km from the middle of the area, began a volume at 19:53 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
Aug 13, 4:19 PM EDT	TSTM WND DMG	Brighton, NY	WIRES DOWN.
Aug 13, 4:24 PM EDT	TSTM WND DMG	Victor, NY	SEVERAL TREES AND WIRES DOWN.
Aug 13, 4:31 PM EDT	TSTM WND DMG	Palmyra, NY	LARGE BARN BLOWN DOWN.
Aug 13, 4:33 PM EDT	TSTM WND DMG	Palmyra, NY	MULTIPLE TREES DOWN.
Aug 13, 4:35 PM EDT	TSTM WND DMG	Macedon, NY	TREES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.9 hours before the alert went out and 90 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.

511 
WUUS51 KBUF 131951
SVRBUF
NYC037-051-055-069-117-132045-
/O.NEW.KBUF.SV.W.0046.160813T1951Z-160813T2045Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  NORTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN GENESEE COUNTY IN WESTERN NEW YORK...
  WESTERN WAYNE COUNTY IN WESTERN NEW YORK...
  SOUTHERN MONROE COUNTY IN WESTERN NEW YORK...

* UNTIL 445 PM EDT

* AT 348 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  CALEDONIA...OR 11 MILES NORTHWEST OF GENESEO...MOVING NORTHEAST AT
  40 MPH.

  HAZARD...60 MPH WIND GUSTS AND ONE INCH HAIL. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  ROCHESTER...IRONDEQUOIT...CHILI...EAST ROCHESTER...WEBSTER...
  FAIRPORT...BRIGHTON AND ONTARIO.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 9 AND 12.
 INTERSTATE 90 BETWEEN EXITS 46 AND 44.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE IMMEDIATELY TO SHELTER INSIDE A STRONG BUILDING. STAY
AWAY FROM WINDOWS.

&&

LAT...LON 4283 7793 4298 7805 4323 7749 4329 7721
      4303 7712 4289 7747
TIME...MOT...LOC 1948Z 241DEG 34KT 4294 7791 

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

HIBBERT

1 follow-up statement

819 
WWUS51 KBUF 132026
SVSBUF

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

NYC037-051-132033-
/O.CAN.KBUF.SV.W.0046.000000T0000Z-160813T2045Z/
LIVINGSTON NY-GENESEE NY-
426 PM EDT SAT AUG 13 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LIVINGSTON AND
SOUTHEASTERN GENESEE COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THIS WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING FOR THIS GROUP OF
THUNDERSTORMS HAS BEEN CANCELLED. AN ADDITIONAL SEVERE THUNDERSTORM
WARNING REMAINS IN EFFECT FOR LIVINGSTON COUNTY UNTIL 445PM.

LAT...LON 4292 7756 4294 7757 4311 7757 4315 7747
      4323 7719 4303 7713 4289 7747 4288 7755
TIME...MOT...LOC 2023Z 241DEG 34KT 4308 7755 

$$

NYC055-069-117-132045-
/O.CON.KBUF.SV.W.0046.000000T0000Z-160813T2045Z/
ONTARIO NY-WAYNE NY-MONROE NY-
426 PM EDT SAT AUG 13 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHWESTERN ONTARIO...SOUTHWESTERN WAYNE AND SOUTHEASTERN MONROE
COUNTIES...

AT 423 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BRIGHTON...
MOVING NORTHEAST AT 40 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...
EAST ROCHESTER...FAIRPORT...BRIGHTON...PENFIELD...MARION...PALMYRA...
VICTOR AND FARMINGTON.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 45 AND 44.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 4292 7756 4294 7757 4311 7757 4315 7747
      4323 7719 4303 7713 4289 7747 4288 7755
TIME...MOT...LOC 2023Z 241DEG 34KT 4308 7755 

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

HIBBERT

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, 3:58 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, 6:25 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario, Wyoming	50 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.