Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 34, NWS Buffalo, NY

July 18, 2016Monroe County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 18, 2016, 1:00 PM EDT for Monroe County, Wayne County, New York. It was in force for 60 min. 2 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 18, 2016, 1:00 PM EDT (17:00 UTC)
Expired: Jul 18, 2016, 2:00 PM EDT
In force: 60 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Monroe County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 130 km from the middle of the area, began a volume at 17:02 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 18, 1:25 PM EDT	TSTM WND DMG	2 E Palmyra, NY	TREE BROUGHT DOWN WIRES. ROADWAY BLOCKED
Jul 18, 1:46 PM EDT	TSTM WND DMG	1 W Savannah, NY	POLE DOWN ACROSS ROAD

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, 5.0 hours before the alert went out and 139 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: 1403 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 677 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

As transmitted.

750 
WUUS51 KBUF 181700
SVRBUF
NYC055-117-181800-
/O.NEW.KBUF.SV.W.0034.160718T1700Z-160718T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
100 PM EDT MON JUL 18 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN WAYNE COUNTY IN WESTERN NEW YORK...
  EAST CENTRAL MONROE COUNTY IN WESTERN NEW YORK...

* UNTIL 200 PM EDT

* AT 100 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FAIRPORT...
  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...
  EAST ROCHESTER...FAIRPORT...PENFIELD...NEWARK...MARION...LYONS...
  PALMYRA AND CLYDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4307 7750 4319 7748 4318 7671 4310 7670
      4307 7670 4306 7672 4302 7672
TIME...MOT...LOC 1700Z 272DEG 28KT 4313 7738 

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

ZAFF

2 follow-up statements

261 
WWUS51 KBUF 181721
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
121 PM EDT MON JUL 18 2016

NYC055-181730-
/O.CAN.KBUF.SV.W.0034.000000T0000Z-160718T1800Z/
MONROE NY-
121 PM EDT MON JUL 18 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONROE COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED EAST OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
CENTRAL NEW YORK.

LAT...LON 4306 7731 4316 7728 4317 7671 4310 7670
      4307 7670 4306 7672 4302 7672
TIME...MOT...LOC 1720Z 272DEG 28KT 4312 7716 

$$

NYC117-181800-
/O.CON.KBUF.SV.W.0034.000000T0000Z-160718T1800Z/
WAYNE NY-
121 PM EDT MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR SOUTHERN WAYNE COUNTY...

AT 120 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MARION...OR 14
MILES EAST OF FAIRPORT...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...
NEWARK...MARION...LYONS...PALMYRA...CLYDE...WALWORTH...
ROSE AND SAVANNAH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4306 7731 4316 7728 4317 7671 4310 7670
      4307 7670 4306 7672 4302 7672
TIME...MOT...LOC 1720Z 272DEG 28KT 4312 7716 

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

ZAFF

533 
WWUS51 KBUF 181757
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
157 PM EDT MON JUL 18 2016

NYC117-181806-
/O.EXP.KBUF.SV.W.0034.000000T0000Z-160718T1800Z/
WAYNE NY-
157 PM EDT MON JUL 18 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WAYNE COUNTY WILL
EXPIRE AT 200 PM EDT...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
CENTRAL NEW YORK.

LAT...LON 4306 7731 4316 7728 4317 7671 4310 7670
      4307 7670 4306 7672 4302 7672
TIME...MOT...LOC 1752Z 272DEG 28KT 4312 7716 

$$

ZAFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 4:16 AM EDT	Special Marine Warning	BUF		59 min
Jul 18, 4:20 AM EDT	Beach Hazards Statement	BUF	Cayuga, Chautauqua, Erie, Jefferson, Oswego, Wayne	18 hr
Jul 18, 5:10 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	53 min
Jul 18, 5:15 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe, Orleans	43 min
Jul 18, 9:58 AM EDT	Special Weather Statement	BUF	Allegany	32 min
Jul 18, 10:07 AM EDT	Special Weather Statement	BUF	Yates	23 min
Jul 18, 10:48 AM EDT	Special Marine Warning	BUF		27 min
Jul 18, 11:03 AM EDT	Special Marine Warning	BUF		87 min
Jul 18, 11:12 AM EDT	Special Weather Statement	BUF	Ontario	33 min
Jul 18, 11:51 AM EDT	Special Weather Statement	BUF	Genesee	39 min
Jul 18, 12:05 PM EDT	Special Marine Warning	BUF		40 min
Jul 18, 12:12 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	63 min
Jul 18, 2:24 PM EDT	Special Weather Statement	BUF	Jefferson	36 min
Jul 18, 2:44 PM EDT	Special Weather Statement	BUF	Monroe	31 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.