Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 2, NWS Buffalo, NY

May 9, 2014Genesee County, Orleans County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 9, 2014, 5:25 PM EDT for Genesee County, Orleans County, Wyoming County, New York. It was in force for 50 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: May 9, 2014, 5:25 PM EDT (21:25 UTC)
Expired: May 9, 2014, 6:15 PM EDT
In force: 50 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Genesee County, NY, Orleans County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 21:26 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
May 9, 5:27 PM EDT	TSTM WND DMG	Cowlesville, NY	POWERLINE DOWN
May 9, 5:36 PM EDT	TSTM WND DMG	Shelby, NY	LINE BLOWN 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, 9.4 hours before the alert went out and 35 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: 58 J/kg
Mixed-layer CIN: -270 J/kg
Mixed-layer LCL: 1547 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 102 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.

327 
WUUS51 KBUF 092125
SVRBUF
NYC037-073-121-092215-
/O.NEW.KBUF.SV.W.0002.140509T2125Z-140509T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
525 PM EDT FRI MAY 9 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GENESEE COUNTY IN WESTERN NEW YORK
  ORLEANS COUNTY IN WESTERN NEW YORK
  WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 615 PM EDT

* AT 521 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 8 MILES WEST OF WATERPORT TO ARCADE...AND MOVING EAST AT 50   
  MPH. STRONG WINDS ARE PUSHING OUT AHEAD OF THIS LINE OF            
  THUNDERSTORMS. WINDS WILL BEGIN PRIOR TO ANY RAIN OR LIGHTNING.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  WATERPORT...
  POINT BREEZE...
  BATAVIA...
  WARSAW...
  PAVILION...
  LE ROY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4253 7847 4337 7847 4338 7845 4338 7802
      4295 7797 4252 7807
TIME...MOT...LOC 2125Z 265DEG 43KT 4335 7834 4254 7839

$$

HITCHCOCK

2 follow-up statements

602 
WWUS51 KBUF 092152
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
552 PM EDT FRI MAY 9 2014

NYC037-073-121-092215-
/O.CON.KBUF.SV.W.0002.000000T0000Z-140509T2215Z/
GENESEE NY-WYOMING NY-ORLEANS NY-
552 PM EDT FRI MAY 9 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT 
FOR ORLEANS...WYOMING AND GENESEE COUNTIES...

AT 546 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 KENDALL TO PIKE...MOVING EAST AT 50 MPH. STRONG WINDS 
ARE PUSHING OUT AHEAD OF THE LINE OF THUNDERSTORMS...SO WINDS WILL 
BEGIN PRIOR TO ANY RAIN OR LIGHTNING.

SOME LOCATIONS IN THE WARNING INCLUDE...
  HOLLEY...
  LEROY...
  BERGEN...
  WYOMING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4253 7834 4338 7834 4338 7802 4295 7797
      4252 7807
TIME...MOT...LOC 2151Z 265DEG 43KT 4336 7801 4255 7802

$$

HITCHCOCK

878 
WWUS51 KBUF 092217
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
617 PM EDT FRI MAY 9 2014

NYC037-073-121-092227-
/O.EXP.KBUF.SV.W.0002.000000T0000Z-140509T2215Z/
GENESEE NY-WYOMING NY-ORLEANS NY-
617 PM EDT FRI MAY 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR ORLEANS...CENTRAL WYOMING AND
CENTRAL GENESEE COUNTIES HAS EXPIRED...

AT 617 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.

LAT...LON 4253 7834 4338 7834 4338 7802 4295 7797
      4252 7807
TIME...MOT...LOC 2152Z 265DEG 43KT 4336 7799 4255 7801

$$

JAM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 1:46 AM EDT	Special Weather Statement	BUF	Ontario	29 min
May 9, 4:17 PM EDT	Special Marine Warning	BUF		88 min
May 9, 4:38 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	52 min
May 9, 5:00 PM EDT	Special Marine Warning	BUF		90 min
May 9, 5:12 PM EDT	Special Weather Statement	BUF	Cattaraugus, Genesee, Orleans, Wyoming	63 min
May 9, 5:58 PM EDT	Special Weather Statement	BUF	Livingston, Monroe	62 min
May 9, 5:59 PM EDT	Special Marine Warning	BUF		91 min
May 9, 6:40 PM EDT	Special Weather Statement	BUF	Ontario, Wayne	80 min
May 9, 7:08 PM EDT	Special Marine Warning	BUF		67 min
May 9, 7:40 PM EDT	Special Weather Statement	BUF	Oswego	65 min
May 9, 7:51 PM EDT	Special Marine Warning	BUF		39 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.