Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 46, NWS Buffalo, NY

July 8, 2014Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 8, 2014, 2:45 PM EDT for Chautauqua County, New York. It was in force for 60 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 8, 2014, 2:45 PM EDT (18:45 UTC)
Expired: Jul 8, 2014, 3:45 PM EDT
In force: 60 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 105 km from the middle of the area, began a volume at 18:44 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 8, 3:25 PM EDT	TSTM WND DMG	Portland, NY	TREE DOWN
Jul 8, 3:25 PM EDT	TSTM WND DMG	Portland, NY	TREES DOWN ON ROUTE 5
Jul 8, 3:36 PM EDT	TSTM WND DMG	Lakewood, NY	TREES AND POWERLINES DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 8, 1:04 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.8 hours before the alert went out and 105 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: 232 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

930 
WUUS51 KBUF 081845
SVRBUF
NYC013-081945-
/O.NEW.KBUF.SV.W.0046.140708T1845Z-140708T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
245 PM EDT TUE JUL 8 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK

THIS ALSO INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 60 AND 61.

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 4 AND 10.

* UNTIL 345 PM EDT

* AT 244 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 18 MILES WEST OF FINDLEY LAKE TO 34 MILES SOUTHWEST OF        
  CLYMER...AND MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  RIPLEY...
  FINDLEY LAKE...
  WESTFIELD...
  CLYMER...
  CHAUTAUQUA INSTITUTE...
  LAKEWOOD...

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.

&&

LAT...LON 4227 7977 4242 7946 4245 7943 4250 7935
      4200 7930 4199 7976 4200 7977
TIME...MOT...LOC 1845Z 248DEG 44KT 4222 8002 4181 8020

$$

HITCHCOCK

2 follow-up statements

920 
WWUS51 KBUF 081917
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
317 PM EDT TUE JUL 8 2014

NYC013-081945-
/O.CON.KBUF.SV.W.0046.000000T0000Z-140708T1945Z/
CHAUTAUQUA NY-
317 PM EDT TUE JUL 8 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR WESTERN CHAUTAUQUA COUNTY...

THIS ALSO INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 60 AND 61.

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 4 AND 10.

AT 314 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 BROCTON TO CLYMER...MOVING NORTHEAST AT 70 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  STOCKTON...
  CHAUTAUQUA LAKE...
  MAYVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THESE STORMS.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4227 7977 4242 7946 4245 7943 4250 7935
      4200 7930 4199 7976 4200 7977
TIME...MOT...LOC 1916Z 241DEG 61KT 4246 7942 4205 7958

$$

HITCHCOCK

085 
WWUS51 KBUF 081941
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
341 PM EDT TUE JUL 8 2014

NYC013-081951-
/O.EXP.KBUF.SV.W.0046.000000T0000Z-140708T1945Z/
CHAUTAUQUA NY-
341 PM EDT TUE JUL 8 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CHAUTAUQUA COUNTY WILL
EXPIRE AT 345 PM EDT...

AT 341 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORMS 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 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4227 7977 4242 7946 4245 7943 4250 7935
      4200 7930 4199 7976 4200 7977
TIME...MOT...LOC 1941Z 241DEG 61KT 4266 7891 4225 7908

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:12 PM EDT	Special Marine Warning	BUF		63 min
Jul 7, 9:02 PM EDT	Special Marine Warning	BUF		58 min
Jul 7, 10:20 PM EDT	Special Marine Warning	BUF		25 min
Jul 7, 10:25 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Orleans, Wyoming	65 min
Jul 8, 2:03 AM EDT	Small Craft Advisory	BUF		33 hr
Jul 8, 1:01 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	59 min
Jul 8, 1:56 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Wyoming	49 min
Jul 8, 2:43 PM EDT	Special Marine Warning	BUF		92 min
Jul 8, 3:06 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	54 min
Jul 8, 3:08 PM EDT	Special Marine Warning	BUF		82 min
Jul 8, 3:28 PM EDT	Special Marine Warning	BUF		92 min
Jul 8, 3:35 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	55 min
Jul 8, 3:46 PM EDT	Special Weather Statement	BUF	Lewis	44 min
Jul 8, 4:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie	45 min
Jul 8, 4:10 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans, Wyoming	44 min
Jul 8, 4:21 PM EDT	Special Marine Warning	BUF		84 min
Jul 8, 4:31 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming	57 min
Jul 8, 4:43 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	62 min
Jul 8, 4:51 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Oswego, Wayne	54 min
Jul 8, 4:57 PM EDT	Special Marine Warning	BUF		63 min
Jul 8, 4:58 PM EDT	Areal Flood Advisory	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming	3 hr
Jul 8, 5:02 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario, Wayne	58 min
Jul 8, 5:16 PM EDT	Special Marine Warning	BUF		89 min
Jul 8, 5:41 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	79 min
Jul 8, 5:56 PM EDT	Special Marine Warning	BUF		64 min
Jul 8, 6:03 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Oswego	57 min
Jul 8, 6:12 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	78 min
Jul 8, 6:54 PM EDT	Areal Flood Advisory	BUF	Jefferson, Lewis	3 hr
Jul 8, 7:30 PM EDT	Special Marine Warning	BUF		60 min

Nearby

Severe Thunderstorm Warnings in New York, 2014 Every severe thunderstorm warning in 2014

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.