Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 37, NWS Buffalo, NY

July 25, 20165 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 25, 2016, 8:35 AM EDT for 5 counties in New York. It was in force for 55 min. 3 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: Jul 25, 2016, 8:35 AM EDT (12:35 UTC)
Expired: Jul 25, 2016, 9:30 AM EDT
In force: 55 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Allegany County, NY, Cattaraugus County, NY, Erie County, NY, Livingston County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 82 km from the middle of the area, began a volume at 12:37 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
Jul 25, 8:35 AM EDT	TSTM WND DMG	3 N Orangeville Center, NY	TREES AND WIRES DOWN ON EXCHANGE ROAD
Jul 25, 8:35 AM EDT	TSTM WND DMG	3 Sse Sheldon, NY	TREES AND WIRES DOWN ON PERRY ROAD
Jul 25, 9:30 AM EDT	TSTM WND DMG	3 Se Canaseraga, NY	TREES AND WIRES 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, 0.6 hours before the alert went out and 79 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: 1065 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 907 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 8.7

Open this sounding in Storm Lab

The text

As transmitted.

872 
WUUS51 KBUF 251235
SVRBUF
NYC003-009-029-051-121-251330-
/O.NEW.KBUF.SV.W.0037.160725T1235Z-160725T1330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
835 AM EDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ERIE COUNTY IN WESTERN NEW YORK...
  SOUTHWESTERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  ALLEGANY COUNTY IN WESTERN NEW YORK...
  WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 930 AM EDT

* AT 834 AM EDT...A CLUSTER OF SEVERE THUNDERSTORMS WAS LOCATED OVER
  CHAFFEE...OR 13 MILES SOUTHEAST OF EAST AURORA...MOVING SOUTHEAST
  AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  DANSVILLE...WELLSVILLE...LETCHWORTH STATE PARK...SPRINGVILLE...
  ALFRED...WARSAW...ARCADE AND FRANKLINVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4251 7873 4280 7827 4254 7767 4253 7772
      4215 7774 4200 7792 4200 7794
TIME...MOT...LOC 1234Z 296DEG 40KT 4259 7850 

HAIL...<.75IN
WIND...60MPH
 
$$

SMITH

3 follow-up statements

798 
WWUS51 KBUF 251300
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
900 AM EDT MON JUL 25 2016

NYC029-251309-
/O.CAN.KBUF.SV.W.0037.000000T0000Z-160725T1330Z/
ERIE NY-
900 AM EDT MON JUL 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ERIE COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 4253 7847 4274 7813 4254 7767 4253 7772
      4215 7774
TIME...MOT...LOC 1259Z 280DEG 54KT 4252 7807 

$$

NYC003-009-051-121-251330-
/O.CON.KBUF.SV.W.0037.000000T0000Z-160725T1330Z/
LIVINGSTON NY-CATTARAUGUS NY-ALLEGANY NY-WYOMING NY-
900 AM EDT MON JUL 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM EDT
FOR SOUTHWESTERN LIVINGSTON...NORTHEASTERN CATTARAUGUS...NORTHERN
ALLEGANY AND SOUTHERN WYOMING COUNTIES...

AT 859 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
PORTAGEVILLE... OR 9 MILES SOUTHWEST OF LETCHWORTH STATE
PARK...MOVING EAST AT 60 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
DANSVILLE...LETCHWORTH STATE PARK...ALFRED...WARSAW...ARCADE...
BELFAST...HOUGHTON AND PORTAGEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4253 7847 4274 7813 4254 7767 4253 7772
      4215 7774
TIME...MOT...LOC 1259Z 280DEG 54KT 4252 7807 

HAIL...<.75IN
WIND...60MPH
 
$$

SMITH

085 
WWUS51 KBUF 251314
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
914 AM EDT MON JUL 25 2016

NYC009-251323-
/O.CAN.KBUF.SV.W.0037.000000T0000Z-160725T1330Z/
CATTARAUGUS NY-
914 AM EDT MON JUL 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CATTARAUGUS
COUNTY IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 4242 7820 4258 7814 4263 7788 4254 7767
      4253 7772 4230 7773
TIME...MOT...LOC 1313Z 296DEG 40KT 4245 7787 

$$

NYC003-051-121-251330-
/O.CON.KBUF.SV.W.0037.000000T0000Z-160725T1330Z/
LIVINGSTON NY-ALLEGANY NY-WYOMING NY-
914 AM EDT MON JUL 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM EDT
FOR SOUTHWESTERN LIVINGSTON...NORTHEASTERN ALLEGANY AND SOUTHEASTERN
WYOMING COUNTIES...

AT 913 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES NORTHWEST
OF ARKPORT...OR 11 MILES SOUTHWEST OF DANSVILLE...MOVING SOUTHEAST
AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
DANSVILLE...LETCHWORTH STATE PARK...HOUGHTON...PORTAGEVILLE...
NUNDA...PIKE...OSSIAN AND CANASERAGA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4242 7820 4258 7814 4263 7788 4254 7767
      4253 7772 4230 7773
TIME...MOT...LOC 1313Z 296DEG 40KT 4245 7787 

HAIL...<.75IN
WIND...60MPH
 
$$

SMITH

537 
WWUS51 KBUF 251325
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
925 AM EDT MON JUL 25 2016

NYC003-051-121-251335-
/O.EXP.KBUF.SV.W.0037.000000T0000Z-160725T1330Z/
LIVINGSTON NY-ALLEGANY NY-WYOMING NY-
925 AM EDT MON JUL 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LIVINGSTON...
NORTHEASTERN ALLEGANY AND SOUTHEASTERN WYOMING COUNTIES WILL EXPIRE
AT 930 AM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE...THE WARNING WILL
BE ALLOWED TO EXPIRE.

LAT...LON 4242 7820 4258 7814 4263 7788 4254 7767
      4253 7772 4230 7773
TIME...MOT...LOC 1324Z 296DEG 40KT 4245 7787 

$$

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 4:29 AM EDT	Beach Hazards Statement	BUF	Erie	18 hr
Jul 25, 4:29 AM EDT	Small Craft Advisory	BUF		18 hr
Jul 25, 6:33 AM EDT	Special Marine Warning	BUF		57 min
Jul 25, 7:11 AM EDT	Special Marine Warning	BUF		64 min
Jul 25, 7:15 AM EDT	Special Marine Warning	BUF		60 min
Jul 25, 7:21 AM EDT	Special Weather Statement	BUF	Monroe	54 min
Jul 25, 7:22 AM EDT	Special Weather Statement	BUF	Genesee	23 min
Jul 25, 7:41 AM EDT	Special Weather Statement	BUF	Erie	64 min
Jul 25, 7:50 AM EDT	Special Weather Statement	BUF	Genesee, Monroe	55 min
Jul 25, 8:19 AM EDT	Special Marine Warning	BUF		56 min
Jul 25, 8:22 AM EDT	Special Weather Statement	BUF	Niagara, Orleans	23 min
Jul 25, 8:40 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario, Wyoming	35 min
Jul 25, 9:10 AM EDT	Special Marine Warning	BUF		35 min
Jul 25, 9:44 AM EDT	Special Marine Warning	BUF		46 min
Jul 25, 9:59 AM EDT	Special Weather Statement	BUF	Erie	46 min
Jul 25, 10:02 AM EDT	Special Marine Warning	BUF		58 min
Jul 25, 10:30 AM EDT	Special Marine Warning	BUF		60 min
Jul 25, 10:35 AM EDT	Special Weather Statement	BUF	Niagara	40 min
Jul 25, 10:47 AM EDT	Special Weather Statement	BUF	Genesee, Orleans	43 min
Jul 25, 10:50 AM EDT	Special Marine Warning	BUF		55 min
Jul 25, 11:44 AM EDT	Special Weather Statement	BUF	Chautauqua	46 min
Jul 25, 11:46 AM EDT	Special Marine Warning	BUF		59 min
Jul 25, 12:05 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Wyoming	55 min
Jul 25, 12:38 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	55 min
Jul 25, 12:48 PM EDT	Special Marine Warning	BUF		42 min
Jul 25, 12:56 PM EDT	Special Weather Statement	BUF	Wyoming	34 min
Jul 25, 1:01 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	59 min
Jul 25, 1:07 PM EDT	Special Weather Statement	BUF	Chautauqua	38 min
Jul 25, 1:24 PM EDT	Special Weather Statement	BUF	Livingston, Ontario	36 min
Jul 25, 4:44 PM EDT	Special Weather Statement	BUF	Genesee	46 min
Jul 25, 5:58 PM EDT	Special Weather Statement	BUF	Genesee	32 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.