Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 74, NWS Buffalo, NY

July 19, 2013Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 19, 2013, 10:06 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 54 min. 1 report 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 19, 2013, 10:06 PM EDT (02:06 UTC)
Expired: Jul 19, 2013, 11:00 PM EDT
In force: 54 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 02:09 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 19, 10:41 PM EDT	TSTM WND DMG	Perrysburg, NY	TREES...WIRES AND POLE 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 00:00Z, 2.1 hours before the alert went out and 37 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: 1370 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1402 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

830 
WUUS51 KBUF 200206
SVRBUF
NYC009-013-029-200300-
/O.NEW.KBUF.SV.W.0074.130720T0206Z-130720T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1006 PM EDT FRI JUL 19 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK

* UNTIL 1100 PM EDT

* AT 1004 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 12 MILES NORTHWEST OF ATHOL SPRINGS TO 14 MILES NORTHWEST OF
  DUNKIRK...OR ALONG A LINE EXTENDING FROM 9 MILES EAST OF PORT
  COLBORNE TO 14 MILES NORTHWEST OF DUNKIRK...AND MOVING EAST AT 50
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  DUNKIRK...
  DERBY...
  ELMA CENTER...
  NORTH COLLINS...
  WALES CENTER...
  COLLINS...
  OTTO...
  SARDINIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO VERY HEAVY RAIN AND DAMAGING WINDS...CONTINUOUS CLOUD 
TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS 
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. 
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE 
STRUCK BY LIGHTNING.

&&

LAT...LON 4255 7922 4256 7916 4259 7914 4265 7907
      4269 7907 4274 7892 4279 7886 4284 7887
      4284 7850 4279 7849 4278 7846 4253 7847
      4235 7857 4233 7906 4249 7935
TIME...MOT...LOC 0205Z 285DEG 42KT 4287 7905 4264 7951

$$

HIBBERT

3 follow-up statements

679 
WWUS51 KBUF 200253
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1053 PM EDT FRI JUL 19 2013

NYC009-013-029-200300-
/O.CON.KBUF.SV.W.0074.000000T0000Z-130720T0300Z/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
1053 PM EDT FRI JUL 19 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR SOUTHERN ERIE...NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN
CATTARAUGUS COUNTIES...

AT 1050 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES SOUTHEAST OF WALES CENTER TO OTTO TO SOUTH
DAYTON...OR ALONG A LINE EXTENDING FROM 13 MILES EAST OF EAST AURORA
TO 19 MILES NORTH OF SALAMANCA TO 12 MILES EAST OF FREDONIA...MOVING 
SOUTHEAST AT 40 MPH. ADDITIONAL STORMS WILL ENTER SOUTHERN ERIE 
COUNTY FROM LAKE ERIE NEAR STURGEON POINT TO WOODLAWN BEACH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  YORKSHIRE...
  ASHFORD HOLLOW...
  SPRINGVILLE...
  HOLLAND...
  PERRYSBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4249 7934 4255 7921 4256 7915 4265 7906
      4269 7906 4274 7891 4279 7885 4284 7886
      4284 7850 4280 7850 4278 7846 4253 7846
      4235 7857 4233 7905
TIME...MOT...LOC 0251Z 298DEG 36KT 4272 7836 4243 7874
          4240 7908

$$

HIBBERT

843 
WWUS51 KBUF 200254
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1054 PM EDT FRI JUL 19 2013

NYC013-200304-
/O.CAN.KBUF.SV.W.0074.000000T0000Z-130720T0300Z/
CHAUTAUQUA NY-
1054 PM EDT FRI JUL 19 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHAUTAUQUA COUNTY
IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4233 7906 4276 7863 4284 7850 4279 7849
      4277 7846 4253 7847 4235 7857
TIME...MOT...LOC 0254Z 285DEG 42KT 4272 7830 4249 7876

$$

NYC009-029-200300-
/O.CON.KBUF.SV.W.0074.000000T0000Z-130720T0300Z/
CATTARAUGUS NY-ERIE NY-
1054 PM EDT FRI JUL 19 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR SOUTHEASTERN ERIE AND NORTHWESTERN CATTARAUGUS COUNTIES...

AT 1050 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES EAST OF WALES CENTER TO 7 MILES NORTH OF 
OTTO...MOVING EAST AT 50 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  SARDINIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4233 7906 4276 7863 4284 7850 4279 7849
      4277 7846 4253 7847 4235 7857
TIME...MOT...LOC 0254Z 285DEG 42KT 4272 7830 4249 7876

$$

RSH

143 
WWUS51 KBUF 200302
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1102 PM EDT FRI JUL 19 2013

NYC009-029-200312-
/O.EXP.KBUF.SV.W.0074.000000T0000Z-130720T0300Z/
CATTARAUGUS NY-ERIE NY-
1102 PM EDT FRI JUL 19 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ERIE AND
NORTHWESTERN CATTARAUGUS COUNTIES HAS EXPIRED...

AT 1102 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4233 7906 4276 7863 4284 7850 4279 7849
      4277 7846 4253 7847 4235 7857
TIME...MOT...LOC 0254Z 285DEG 42KT 4272 7830 4249 7876

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 8:01 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	59 min
Jul 19, 8:03 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	57 min
Jul 19, 8:20 PM EDT	Areal Flood Advisory	BUF	Erie, Genesee, Niagara, Orleans	3 hr
Jul 19, 8:32 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	43 min
Jul 19, 8:49 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Wyoming	56 min
Jul 19, 8:51 PM EDT	Flash Flood Warning	BUF	Erie, Niagara	3 hr
Jul 19, 8:58 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	32 min
Jul 19, 9:25 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	65 min
Jul 19, 9:49 PM EDT	Special Marine Warning	BUF		56 min
Jul 19, 9:56 PM EDT	Special Marine Warning	BUF		64 min
Jul 19, 10:21 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	54 min
Jul 19, 10:33 PM EDT	Areal Flood Advisory	BUF	Erie, Genesee, Wyoming	3 hr
Jul 19, 10:49 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Wyoming	56 min
Jul 20, 12:46 AM EDT	Special Marine Warning	BUF		59 min
Jul 20, 1:18 AM EDT	Areal Flood Advisory	BUF	Erie, Genesee, Niagara, Orleans	3 hr
Jul 20, 1:21 AM EDT	Special Marine Warning	BUF		84 min
Jul 20, 2:43 AM EDT	Special Weather Statement	BUF	Ontario	32 min
Jul 20, 3:45 AM EDT	Special Marine Warning	BUF		60 min
Jul 20, 4:02 AM EDT	Severe Thunderstorm Warning	BUF	Erie	43 min
Jul 20, 4:49 AM EDT	Small Craft Advisory	BUF		9 hr

Nearby

Severe Thunderstorm Warnings in New York, 2013 Every severe thunderstorm warning in 2013

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.