Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 147, NWS Buffalo, NY

August 10, 2008Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 10, 2008, 6:26 PM EDT for Ontario County, New York. It was in force for 49 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
Aug 10, 2008, 6:26 PM EDT (22:26 UTC)
Expired
Aug 10, 2008, 7:15 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Ontario County, NY

The radar

The Buffalo radar (KBUF), 106 km from the middle of the area, began a volume at 22:27 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

TimeReportWhereRemark
Aug 10, 6:45 PM EDTHAIL 0.75Victor, NY
Aug 10, 6:45 PM EDTHAIL 1.752 Sw Victor, NYBROKEN WINDSHIELD IN AUTOMOBILE

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, 10.4 hours before the alert went out and 103 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2008-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 400 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2008-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
400 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 102226
SVRBUF
NYC069-102315-
/O.NEW.KBUF.SV.W.0147.080810T2226Z-080810T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
626 PM EDT SUN AUG 10 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL ONTARIO COUNTY IN WESTERN NEW YORK

* UNTIL 715 PM EDT

* AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  VICTOR...OR 9 MILES WEST OF CANANDAIGUA...AND MOVING NORTHEAST AT
  12 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  VICTOR BY 640 PM EDT...

THIS STORM WILL ALSO CROSS THE NEW YORK STATE THRUWAY BETWEEN THE 
VICTOR AND MANCHESTER EXITS.

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 4293 7751 4294 7750 4294 7748 4295 7748
      4296 7748 4303 7742 4304 7713 4286 7743
TIME...MOT...LOC 2222Z 232DEG 10KT 4294 7744

$$

HITCHCOCK
3 follow-up statements
000 
WWUS51 KBUF 102244
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
644 PM EDT SUN AUG 10 2008

NYC069-102315-
/O.CON.KBUF.SV.W.0147.000000T0000Z-080810T2315Z/
ONTARIO NY-
643 PM EDT SUN AUG 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTH CENTRAL ONTARIO COUNTY...

AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR VICTOR...OR 8 MILES NORTHWEST OF CANANDAIGUA...MOVING
NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  TOWNS OF VICTOR AND FARMINGTON THROUGH 700 PM EDT...
  THE NEW YORK STATE THRUWAY BETWEEN THE VICTOR AND MANCHESTER       
  EXITS...

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 4296 7748 4303 7742 4304 7719 4292 7740
TIME...MOT...LOC 2243Z 232DEG 10KT 4297 7739

$$

HITCHCOCK
000 
WWUS51 KBUF 102302
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
702 PM EDT SUN AUG 10 2008

NYC069-102315-
/O.CON.KBUF.SV.W.0147.000000T0000Z-080810T2315Z/
ONTARIO NY-
702 PM EDT SUN AUG 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTH CENTRAL ONTARIO COUNTY...

AT 659 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED OVER NORTH CENTRAL ONTARIO COUNTY...OR
8 MILES NORTH OF CANANDAIGUA...MOVING NORTHEAST AT 20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  THE WAYNE COUNTY LINE NORTHEAST OF VICTOR THROUGH 715 PM EDT...

THIS IS A DANGEROUS STORM. 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 4299 7743 4303 7742 4304 7719 4298 7730
TIME...MOT...LOC 2302Z 232DEG 10KT 4300 7733

$$

HITCHCOCK
000 
WWUS51 KBUF 102320 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
720 PM EDT SUN AUG 10 2008

NYC069-102331-
/O.EXP.KBUF.SV.W.0147.000000T0000Z-080810T2315Z/
ONTARIO NY-
721 PM EDT SUN AUG 10 2008

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

AT 721 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4299 7743 4303 7742 4304 7719 4298 7730
TIME...MOT...LOC 2302Z 232DEG 10KT 4300 7733

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:19 PM EDTSevere Thunderstorm WarningBUFCattaraugus27 min
Aug 9, 8:20 PM EDTSpecial Marine WarningBUF40 min
Aug 9, 8:22 PM EDTSevere Thunderstorm WarningBUFChautauqua31 min
Aug 9, 8:33 PM EDTSpecial Marine WarningBUF57 min
Aug 9, 9:04 PM EDTSpecial Marine WarningBUF86 min
Aug 9, 9:32 PM EDTAreal Flood AdvisoryBUFChautauqua, Erie3 hr
Aug 10, 11:01 AM EDTSpecial Marine WarningBUF119 min
Aug 10, 11:18 AM EDTAreal Flood AdvisoryBUFErie117 min
Aug 10, 1:07 PM EDTSpecial Marine WarningBUF3 hr
Aug 10, 1:15 PM EDTSpecial Marine WarningBUF3 hr
Aug 10, 1:25 PM EDTFlash Flood WarningBUFErie2 hr
Aug 10, 3:53 PM EDTSevere Thunderstorm WarningBUFWayne52 min
Aug 10, 3:56 PM EDTSevere Thunderstorm WarningBUFMonroe34 min
Aug 10, 4:08 PM EDTSpecial Marine WarningBUF82 min
Aug 10, 4:45 PM EDTSevere Thunderstorm WarningBUFCayuga, Wayne60 min
Aug 10, 5:49 PM EDTAreal Flood AdvisoryBUFCayuga3 hr
Aug 10, 6:50 PM EDTAreal Flood AdvisoryBUFOswego3 hr
Aug 10, 6:53 PM EDTSevere Thunderstorm WarningBUFOswego45 min
Aug 10, 7:00 PM EDTSevere Thunderstorm WarningBUFWayne20 min
Aug 10, 7:11 PM EDTSpecial Marine WarningBUF85 min

Nearby

Severe Thunderstorm Warnings in New York, 2008Every 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.