Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 83, NWS Buffalo, NY

June 29, 2008Livingston County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 29, 2008, 4:11 PM EDT for Livingston County, Ontario County, New York. It was in force for 79 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: Jun 29, 2008, 4:11 PM EDT (20:11 UTC)
Expired: Jun 29, 2008, 5:30 PM EDT
In force: 79 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Livingston County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 116 km from the middle of the area, began a volume at 20:14 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
Jun 29, 4:50 PM EDT	TSTM WND DMG	Honeoye, NY	TREES 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
Jun 29, 12:11 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.2 hours before the alert went out and 113 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: 25 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1174 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 292012
SVRBUF
NYC051-069-292130-
/O.NEW.KBUF.SV.W.0083.080629T2011Z-080629T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
411 PM EDT SUN JUN 29 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME EASTERN LIVINGSTON COUNTY IN WESTERN NEW YORK  
  ONTARIO COUNTY IN WESTERN NEW YORK

* UNTIL 530 PM EDT

* AT 409 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE      
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE  
  LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST OF GENESEO   
  TO DANSVILLE...AND MOVING NORTHEAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  HONEOYE BY 425 PM EDT...
  BRISTOL AND NAPLES BY 435 PM EDT...
  CANANDAIGUA BY 450 PM EDT...
  CLIFTON SPRINGS BY 505 PM EDT...
  PHELPS BY 510 PM EDT...
  GENEVA BY 520 PM EDT...

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 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4267 7752 4268 7760 4278 7762 4285 7768
      4304 7726 4304 7713 4301 7712 4301 7696
      4291 7694 4277 7697 4276 7731 4269 7736
      4258 7737 4258 7749
TIME...MOT...LOC 2011Z 245DEG 31KT 4274 7768 4258 7769

$$

HITCHCOCK

3 follow-up statements

000 
WWUS51 KBUF 292037
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
437 PM EDT SUN JUN 29 2008

NYC051-292047-
/O.CAN.KBUF.SV.W.0083.000000T0000Z-080629T2130Z/
LIVINGSTON NY-
437 PM EDT SUN JUN 29 2008

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LIVINGSTON COUNTY
IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4268 7752 4295 7747 4304 7726 4304 7714
      4301 7711 4301 7696 4287 7695 4286 7696
      4277 7697 4276 7731 4265 7736
TIME...MOT...LOC 2037Z 245DEG 31KT 4292 7737 4267 7741

$$

NYC069-292130-
/O.CON.KBUF.SV.W.0083.000000T0000Z-080629T2130Z/
ONTARIO NY-
437 PM EDT SUN JUN 29 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR ONTARIO COUNTY...

AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM HOLCOMB TO BRISTOL
MOUNTAIN...OR ALONG A LINE EXTENDING FROM CANANDAIGUA TO 8 MILES WEST
OF MIDDLESEX...MOVING NORTHEAST AT 36 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CANANDAIGUA BY 445 PM EDT...
  COTTAGE CITY AND SHORTSVILLE AND MANCHESTER BY 450 PM EDT...
  CLIFTON SPRINGS BY 500 PM EDT...
  GORHAM AND PHELPS BY 505 PM EDT...
  GENEVA BY 515 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4268 7752 4295 7747 4304 7726 4304 7714
      4301 7711 4301 7696 4287 7695 4286 7696
      4277 7697 4276 7731 4265 7736
TIME...MOT...LOC 2037Z 245DEG 31KT 4292 7737 4267 7741

$$

ZAFF

000 
WWUS51 KBUF 292113
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
513 PM EDT SUN JUN 29 2008

NYC069-292130-
/O.CON.KBUF.SV.W.0083.000000T0000Z-080629T2130Z/
ONTARIO NY-
513 PM EDT SUN JUN 29 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR ONTARIO COUNTY...

AT 509 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING NICKEL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM PHELPS TO
GORHAM...OR ALONG A LINE EXTENDING FROM 10 MILES NORTH OF GENEVA TO 8
MILES SOUTHWEST OF GENEVA...MOVING NORTHEAST AT 36 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  GENEVA BY 520 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4268 7752 4295 7747 4304 7726 4304 7714
      4301 7711 4301 7696 4287 7695 4286 7696
      4277 7697 4276 7731 4265 7736
TIME...MOT...LOC 2113Z 245DEG 31KT 4301 7699 4280 7707

$$

APB

000 
WWUS51 KBUF 292130
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
530 PM EDT SUN JUN 29 2008

NYC069-292140-
/O.EXP.KBUF.SV.W.0083.000000T0000Z-080629T2130Z/
ONTARIO NY-
530 PM EDT SUN JUN 29 2008

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO COUNTY HAS EXPIRED...

AT 530 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 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4268 7752 4295 7747 4304 7726 4304 7714
      4301 7711 4301 7696 4287 7695 4286 7696
      4277 7697 4276 7731 4265 7736
TIME...MOT...LOC 2130Z 245DEG 31KT 4307 7681 4286 7689

$$

APB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 8:35 PM EDT	Areal Flood Advisory	BUF	Allegany, Cattaraugus	84 min
Jun 29, 1:00 PM EDT	Special Marine Warning	BUF		112 min
Jun 29, 1:03 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	57 min
Jun 29, 1:07 PM EDT	Special Marine Warning	BUF		103 min
Jun 29, 1:13 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	77 min
Jun 29, 1:46 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	74 min
Jun 29, 2:07 PM EDT	Severe Thunderstorm Warning	BUF	Orleans	53 min
Jun 29, 2:23 PM EDT	Special Marine Warning	BUF		97 min
Jun 29, 2:25 PM EDT	Severe Thunderstorm Warning	BUF	Erie	35 min
Jun 29, 2:33 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	27 min
Jun 29, 2:55 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Wyoming	65 min
Jun 29, 3:34 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Wyoming	56 min
Jun 29, 3:51 PM EDT	Special Marine Warning	BUF		54 min
Jun 29, 4:01 PM EDT	Special Marine Warning	BUF		89 min
Jun 29, 4:24 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	21 min
Jun 29, 4:31 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	74 min
Jun 29, 4:43 PM EDT	Special Marine Warning	BUF		32 min
Jun 29, 4:49 PM EDT	Special Marine Warning	BUF		116 min
Jun 29, 4:54 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	63 min
Jun 29, 5:01 PM EDT	Special Marine Warning	BUF		89 min
Jun 29, 5:10 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	48 min
Jun 29, 5:18 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	47 min
Jun 29, 5:18 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	72 min
Jun 29, 5:39 PM EDT	Tornado Warning	BUF	Cattaraugus, Chautauqua	41 min
Jun 29, 5:43 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	22 min
Jun 29, 6:44 PM EDT	Special Marine Warning	BUF		41 min

Nearby

Severe Thunderstorm Warnings in New York, 2008 Every severe thunderstorm warning in 2008

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.