Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 150, NWS Buffalo, NY

August 11, 2008Genesee County, Monroe County, Orleans County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 11, 2008, 5:56 AM EDT for Genesee County, Monroe County, Orleans County, New York. It was in force for 64 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
Aug 11, 2008, 5:56 AM EDT (09:56 UTC)
Expired
Aug 11, 2008, 7:00 AM EDT
In force
64 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Genesee County, NY, Monroe County, NY, Orleans County, NY

The radar

The Buffalo radar (KBUF), 79 km from the middle of the area, began a volume at 09:57 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.9 hours before the alert went out and 77 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 00:00Z on 2008-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 67 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 00:00Z on 2008-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 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
67 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 110956
SVRBUF
NYC037-055-073-111100-
/O.NEW.KBUF.SV.W.0150.080811T0956Z-080811T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
556 AM EDT MON AUG 11 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GENESEE COUNTY IN WESTERN NEW YORK
  NORTHWESTERN MONROE COUNTY IN WESTERN NEW YORK
  EASTERN ORLEANS COUNTY IN WESTERN NEW YORK

* UNTIL 700 AM EDT

* AT 553 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED 5 MILES NORTHEAST OF HILTON...AND MOVING
  SOUTHWEST AT 17 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HILTON BY 610 AM EDT...
  BROCKPORT BY 645 AM EDT...
  HOLLEY BY 655 AM EDT...

IN ADDITION TO HAIL...FREQUENT 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 4295 7799 4327 7832 4338 7797 4337 7794
      4335 7785 4336 7784 4334 7781 4335 7776
      4334 7772 4330 7767 4327 7761
TIME...MOT...LOC 0955Z 053DEG 15KT 4334 7773

$$

TJP
2 follow-up statements
000 
WWUS51 KBUF 111019
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
619 AM EDT MON AUG 11 2008

NYC037-055-073-111100-
/O.CON.KBUF.SV.W.0150.000000T0000Z-080811T1100Z/
GENESEE NY-MONROE NY-ORLEANS NY-
619 AM EDT MON AUG 11 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM EDT
FOR EASTERN ORLEANS...NORTHWESTERN MONROE AND NORTHEASTERN GENESEE
COUNTIES...

AT 614 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL
AND VERY HEAVY RAIN. THIS STORM WAS LOCATED NEAR HILTON...MOVING 
SOUTHWEST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BROCKPORT BY 645 AM EDT...
  HOLLEY BY 655 AM EDT...

LAT...LON 4295 7799 4327 7832 4338 7797 4337 7794
      4335 7785 4336 7784 4334 7781 4335 7776
      4334 7772 4330 7767 4327 7761
TIME...MOT...LOC 1019Z 053DEG 15KT 4328 7784

$$

TJP
000 
WWUS51 KBUF 111059
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
659 AM EDT MON AUG 11 2008

NYC037-055-073-111108-
/O.EXP.KBUF.SV.W.0150.000000T0000Z-080811T1100Z/
GENESEE NY-MONROE NY-ORLEANS NY-
658 AM EDT MON AUG 11 2008

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ORLEANS...NORTHWESTERN
MONROE AND NORTHEASTERN GENESEE COUNTIES WILL EXPIRE AT 700 AM EDT...

AT 658 AM 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.

HOWEVER...HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS ARE STILL 
POSSIBLE FROM THUNDERSTORMS THROUGH 8 AM. 

LAT...LON 4295 7799 4327 7832 4338 7797 4337 7794
      4335 7785 4336 7784 4334 7781 4335 7776
      4334 7772 4330 7767 4327 7761
TIME...MOT...LOC 1058Z 053DEG 15KT 4333 7799

$$

TJP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:15 PM EDTAreal Flood AdvisoryBUFOntario3 hr
Aug 10, 9:47 PM EDTSpecial Marine WarningBUF88 min
Aug 11, 6:17 AM EDTAreal Flood AdvisoryBUFMonroe, Orleans88 min
Aug 11, 6:33 AM EDTAreal Flood WarningBUFMonroe106 min
Aug 11, 7:07 AM EDTSpecial Marine WarningBUF83 min
Aug 11, 8:35 AM EDTAreal Flood AdvisoryBUFMonroe, Orleans2 hr
Aug 11, 6:20 PM EDTAreal Flood AdvisoryBUFOswego3 hr
Aug 11, 7:13 PM EDTSpecial Marine WarningBUF62 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.