Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS Buffalo, NY

May 29, 2012Allegany County, Cattaraugus County, Livingston County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 29, 2012, 1:27 PM EDT for Allegany County, Cattaraugus County, Livingston County, New York. It was in force for 63 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: May 29, 2012, 1:27 PM EDT (17:27 UTC)
Expired: May 29, 2012, 2:30 PM EDT
In force: 63 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Allegany County, NY, Cattaraugus County, NY, Livingston County, NY

The radar

The Buffalo radar (KBUF), 87 km from the middle of the area, began a volume at 17:30 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 29, 10:27 AM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.5 hours before the alert went out and 83 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: 1783 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1124 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

593 
WUUS51 KBUF 291727
SVRBUF
NYC003-009-051-291830-
/O.NEW.KBUF.SV.W.0026.120529T1727Z-120529T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
127 PM EDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEGANY COUNTY IN WESTERN NEW YORK
  SOUTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  SOUTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK

* UNTIL 230 PM EDT

* AT 120 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHEAST OF           
  HOUGHTON TO OLEAN...AND MOVING NORTHEAST AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  BELMONT...
  WELLSVILLE...
  DANSVILLE...
  WHITESVILLE...
  ALFRED...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL 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 4200 7861 4253 7810 4252 7805 4254 7806
      4268 7763 4254 7765 4253 7771 4199 7776
TIME...MOT...LOC 1726Z 237DEG 38KT 4252 7795 4208 7835

$$

HITCHCOCK

3 follow-up statements

672 
WWUS51 KBUF 291752
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
152 PM EDT TUE MAY 29 2012

NYC009-291802-
/O.CAN.KBUF.SV.W.0026.000000T0000Z-120529T1830Z/
CATTARAUGUS NY-
152 PM EDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CATTARAUGUS
COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4200 7831 4204 7831 4261 7783 4268 7763
      4254 7765 4253 7771 4199 7776
TIME...MOT...LOC 1752Z 248DEG 34KT 4250 7771 4207 7811

$$

NYC003-051-291830-
/O.CON.KBUF.SV.W.0026.000000T0000Z-120529T1830Z/
ALLEGANY NY-LIVINGSTON NY-
152 PM EDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT 
FOR SOUTHERN LIVINGSTON AND SOUTHEASTERN ALLEGANY COUNTIES...

AT 148 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
WERE LOCATED ALONG A LINE EXTENDING FROM CANASERAGA TO BOLIVAR... 
MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  WELLSVILLE...
  ALMOND...
  WHITESVILLE...
  ANDOVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL 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 4200 7831 4204 7831 4261 7783 4268 7763
      4254 7765 4253 7771 4199 7776
TIME...MOT...LOC 1752Z 248DEG 34KT 4250 7771 4207 7811

$$

HITCHCOCK

481 
WWUS51 KBUF 291808
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
208 PM EDT TUE MAY 29 2012

NYC051-291817-
/O.CAN.KBUF.SV.W.0026.000000T0000Z-120529T1830Z/
LIVINGSTON NY-
208 PM EDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LIVINGSTON
COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4200 7816 4236 7788 4244 7772 4199 7776
TIME...MOT...LOC 1807Z 234DEG 50KT 4204 7782

$$

NYC003-291830-
/O.CON.KBUF.SV.W.0026.000000T0000Z-120529T1830Z/
ALLEGANY NY-
208 PM EDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR SOUTHEASTERN ALLEGANY COUNTY...

AT 206 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR WHITESVILLE...OR 8 MILES SOUTHEAST OF WELLSVILLE...
MOVING NORTHEAST AT 60 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  WHITESVILLE...
  ANDOVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. 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 4200 7816 4236 7788 4244 7772 4199 7776
TIME...MOT...LOC 1807Z 234DEG 50KT 4204 7782

$$

HITCHCOCK

855 
WWUS51 KBUF 291822
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
222 PM EDT TUE MAY 29 2012

NYC003-291833-
/O.EXP.KBUF.SV.W.0026.000000T0000Z-120529T1830Z/
ALLEGANY NY-
222 PM EDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ALLEGANY COUNTY
WILL EXPIRE AT 230 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4200 7816 4236 7788 4244 7772 4199 7776
TIME...MOT...LOC 1823Z 234DEG 50KT 4217 7757

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 3:51 AM EDT	Special Weather Statement	BUF	Lewis	54 min
May 29, 4:24 AM EDT	Special Weather Statement	BUF	Wyoming	66 min
May 29, 4:33 AM EDT	Special Marine Warning	BUF		27 min
May 29, 4:41 AM EDT	Special Weather Statement	BUF	Jefferson	34 min
May 29, 5:09 AM EDT	Special Weather Statement	BUF	Wyoming	36 min
May 29, 5:17 AM EDT	Special Weather Statement	BUF	Lewis	28 min
May 29, 6:34 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	22 min
May 29, 11:01 AM EDT	Special Weather Statement	BUF	Chautauqua	44 min
May 29, 11:24 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	66 min
May 29, 11:39 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Wyoming	51 min
May 29, 12:11 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	64 min
May 29, 12:13 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	62 min
May 29, 12:20 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Wyoming	41 min
May 29, 12:41 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	44 min
May 29, 12:47 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	58 min
May 29, 12:49 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	41 min
May 29, 12:54 PM EDT	Special Marine Warning	BUF		36 min
May 29, 1:17 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	58 min
May 29, 1:20 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	55 min
May 29, 1:24 PM EDT	Areal Flood Advisory	BUF	Oswego	3 hr
May 29, 1:47 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	38 min
May 29, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	43 min

Nearby

Severe Thunderstorm Warnings in New York, 2012 Every severe thunderstorm warning in 2012

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.