Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 155, NWS Buffalo, NY

August 15, 2008Erie County, Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 15, 2008, 4:20 PM EDT for Erie County, Niagara County, New York. It was in force for 55 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
Aug 15, 2008, 4:20 PM EDT (20:20 UTC)
Expired
Aug 15, 2008, 5:15 PM EDT
In force
55 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Erie County, NY, Niagara County, NY

The radar

The Buffalo radar (KBUF), 13 km from the middle of the area, began a volume at 20:22 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 15, 4:35 PM EDTHAIL 0.75Snyder, NY

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, 8.3 hours before the alert went out and 16 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 2008-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 2008-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939587897Sfc1 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
39 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
0 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.

000 
WUUS51 KBUF 152020
SVRBUF
NYC029-063-152115-
/O.NEW.KBUF.SV.W.0155.080815T2020Z-080815T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
420 PM EDT FRI AUG 15 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ERIE COUNTY IN WESTERN NEW YORK
  SOUTH CENTRAL NIAGARA COUNTY IN WESTERN NEW YORK

* UNTIL 515 PM EDT

* AT 417 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE HAIL. 
  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 4 MILES WEST
  OF BUFFALO TO DEPEW...AND MOVING NORTHEAST AT 7 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MARILLA BY 440 PM EDT...
  WILLIAMSVILLE BY 450 PM EDT...
  GRAND ISLAND AND HARRIS HILL BY 455 PM EDT...
  KENMORE BY 505 PM EDT...
  TONAWANDA BY 510 PM EDT...
  AMHERST...NORTH TONAWANDA AND AKRON BY 515 PM EDT...

LAT...LON 4307 7899 4308 7902 4314 7899 4308 7848
      4270 7848 4278 7888 4285 7887 4291 7892
      4295 7893 4295 7895 4297 7902 4301 7904
TIME...MOT...LOC 2021Z 227DEG 6KT 4291 7894 4294 7872

$$

TJP
2 follow-up statements
000 
WWUS51 KBUF 152040
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
440 PM EDT FRI AUG 15 2008

NYC029-063-152115-
/O.CON.KBUF.SV.W.0155.000000T0000Z-080815T2115Z/
NIAGARA NY-ERIE NY-
438 PM EDT FRI AUG 15 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHERN ERIE AND SOUTH CENTRAL NIAGARA COUNTIES...

AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 
KENMORE TO CLARENCE...MOVING NORTHEAST AT 7 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WILLIAMSVILLE BY 450 PM EDT...
  HARRIS HILL BY 455 PM EDT...
  GRAND ISLAND BY 500 PM EDT...
  KENMORE BY 505 PM EDT...
  NIAGARA FALLS BY 510 PM EDT...
  CLARENCE CENTER AND TONAWANDA AND AMHERST BY 515 PM EDT...

HAIL UP TO PENNY SIZE HAS BEEN REPORTED IN SNYDER. IF YOUR ARE IN 
THE PATH OF THESE STORMS...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND 
PROPERTY.

LAT...LON 4307 7899 4308 7902 4314 7899 4308 7848
      4270 7848 4278 7888 4285 7887 4291 7892
      4295 7893 4295 7895 4297 7902 4301 7904
TIME...MOT...LOC 2038Z 227DEG 6KT 4293 7891 4296 7869

$$

TJP
000 
WWUS51 KBUF 152112
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
512 PM EDT FRI AUG 15 2008

NYC029-063-152122-
/O.EXP.KBUF.SV.W.0155.000000T0000Z-080815T2115Z/
NIAGARA NY-ERIE NY-
512 PM EDT FRI AUG 15 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ERIE AND SOUTH
CENTRAL NIAGARA COUNTIES WILL EXPIRE AT 515 PM EDT...

AT 512 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 4307 7899 4308 7902 4314 7899 4308 7848
      4270 7848 4278 7888 4285 7887 4291 7892
      4295 7893 4295 7895 4297 7902 4301 7904
TIME...MOT...LOC 2112Z 227DEG 6KT 4297 7885 4300 7863

$$

TMA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 1:28 PM EDTSevere Thunderstorm WarningBUFErie47 min
Aug 15, 1:45 PM EDTSevere Thunderstorm WarningBUFJefferson34 min
Aug 15, 1:51 PM EDTSpecial Marine WarningBUF54 min
Aug 15, 2:37 PM EDTSevere Thunderstorm WarningBUFErie53 min
Aug 15, 2:47 PM EDTSpecial Marine WarningBUF33 min
Aug 15, 3:15 PM EDTAreal Flood AdvisoryBUFErie3 hr
Aug 15, 3:44 PM EDTAreal Flood AdvisoryBUFOswego91 min
Aug 15, 4:29 PM EDTFlash Flood WarningBUFErie92 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.