Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 80, NWS Buffalo, NY

September 17, 20165 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 17, 2016, 6:37 PM EDT for 5 counties in New York. It was in force for 53 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: Sep 17, 2016, 6:37 PM EDT (22:37 UTC)
Expired: Sep 17, 2016, 7:30 PM EDT
In force: 53 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Buffalo radar (KBUF), 83 km from the middle of the area, began a volume at 22:37 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.6 hours before the alert went out and 81 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: 48 J/kg
Mixed-layer CIN: -304 J/kg
Mixed-layer LCL: 980 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

562 
WUUS51 KBUF 172237
SVRBUF
NYC037-051-055-069-073-172330-
/O.NEW.KBUF.SV.W.0080.160917T2237Z-160917T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
637 PM EDT SAT SEP 17 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...
  EASTERN GENESEE COUNTY IN WESTERN NEW YORK...
  MONROE COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN ORLEANS COUNTY IN WESTERN NEW YORK...

* UNTIL 730 PM EDT.

* AT 637 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 6 MILES NORTHWEST OF HOLLEY TO NEAR BYRON TO 6 MILES
  SOUTH OF BATAVIA...MOVING EAST AT 60 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  ROCHESTER...GREECE...IRONDEQUOIT...CHILI...BROCKPORT...EAST ROCHESTER...
  HILTON AND WEBSTER.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 11 AND 12.
 INTERSTATE 90 BETWEEN EXITS 47 AND 45.

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 THESE STORMS. 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 4288 7805 4327 7805 4337 7773 4328 7754
      4331 7740 4294 7740
TIME...MOT...LOC 2237Z 251DEG 53KT 4330 7808 4310 7802 4291 7815 

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

RSH

2 follow-up statements

935 
WWUS51 KBUF 172306
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
706 PM EDT SAT SEP 17 2016

NYC037-051-073-172315-
/O.CAN.KBUF.SV.W.0080.000000T0000Z-160917T2330Z/
LIVINGSTON NY-GENESEE NY-ORLEANS NY-
706 PM EDT SAT SEP 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LIVINGSTON...EASTERN
GENESEE AND SOUTHEASTERN ORLEANS COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 4301 7785 4333 7784 4337 7773 4328 7754
      4331 7740 4294 7740
TIME...MOT...LOC 2305Z 246DEG 36KT 4337 7765 4322 7758 4301 7768 

$$

NYC055-069-172330-
/O.CON.KBUF.SV.W.0080.000000T0000Z-160917T2330Z/
ONTARIO NY-MONROE NY-
706 PM EDT SAT SEP 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHWESTERN ONTARIO AND MONROE COUNTIES...

AT 705 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES NORTHEAST OF HILTON TO IRONDEQUOIT TO NEAR
SCOTTSVILLE...MOVING NORTHEAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
ROCHESTER...GREECE...IRONDEQUOIT...CHILI...EAST ROCHESTER...HILTON...
WEBSTER AND FAIRPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 11 AND 12.
 INTERSTATE 90 BETWEEN EXITS 46 AND 45.

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 THESE STORMS.
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.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4301 7785 4333 7784 4337 7773 4328 7754
      4331 7740 4294 7740
TIME...MOT...LOC 2305Z 246DEG 36KT 4337 7765 4322 7758 4301 7768 

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

RSH

944 
WWUS51 KBUF 172323
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
723 PM EDT SAT SEP 17 2016

NYC055-069-172332-
/O.EXP.KBUF.SV.W.0080.000000T0000Z-160917T2330Z/
ONTARIO NY-MONROE NY-
723 PM EDT SAT SEP 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ONTARIO AND
MONROE COUNTIES WILL EXPIRE AT 730 PM EDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

LAT...LON 4301 7785 4333 7784 4337 7773 4328 7754
      4331 7740 4294 7740
TIME...MOT...LOC 2320Z 251DEG 53KT 4337 7765 4322 7758 4301 7768 

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 16, 10:21 PM EDT	Beach Hazards Statement	BUF	Jefferson	25 hr
Sep 17, 4:48 AM EDT	Small Craft Advisory	BUF		26 hr
Sep 17, 11:30 AM EDT	Special Weather Statement	BUF	Chautauqua	45 min
Sep 17, 4:36 PM EDT	Special Marine Warning	BUF		54 min
Sep 17, 5:22 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	38 min
Sep 17, 5:28 PM EDT	Special Marine Warning	BUF		62 min
Sep 17, 6:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	45 min
Sep 17, 6:13 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	47 min
Sep 17, 6:36 PM EDT	Tornado Warning	BUF	Cattaraugus	24 min
Sep 17, 6:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Wyoming	48 min
Sep 17, 6:56 PM EDT	Special Marine Warning	BUF		94 min
Sep 17, 7:00 PM EDT	Tornado Warning	BUF	Cattaraugus	30 min
Sep 17, 7:30 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	60 min
Sep 17, 7:50 PM EDT	Special Marine Warning	BUF		55 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.