Alert archive / New York / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 4, NWS Buffalo, NY

May 8, 2009Cayuga County, Oswego County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 8, 2009, 3:24 PM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 54 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
May 8, 2009, 3:24 PM EDT (19:24 UTC)
Expired
May 8, 2009, 4:18 PM EDT
In force
54 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 83 km from the middle of the area, began a volume at 19:24 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
May 8, 3:30 PM EDTHAIL 0.751 N Wolcott, NYREPORTS FROM PORT BAY GOLF COURSE JUST NORTH OF WOLCOTT AND ALSO IN WOLCOTT

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, 7.4 hours before the alert went out and 188 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 2009-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 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 2009-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
36 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1116 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
124 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 081924
SVRBUF
NYC011-075-117-082030-
/O.NEW.KBUF.SV.W.0004.090508T1924Z-090508T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
324 PM EDT FRI MAY 8 2009

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CAYUGA COUNTY IN CENTRAL NEW YORK
  SOUTHWESTERN OSWEGO COUNTY IN CENTRAL NEW YORK
  NORTHEASTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 430 PM EDT

* AT 322 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 25 MILES WEST OF FULTON...OR 17 MILES NORTHWEST
  OF MONTEZUMA...AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  VICTORY BY 345 PM EDT...
  FULTON BY 415 PM EDT...

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 4326 7621 4323 7620 4320 7622 4322 7625
      4320 7629 4323 7632 4322 7648 4318 7647
      4315 7696 4325 7699 4325 7696 4347 7622
      4325 7615
TIME...MOT...LOC 1923Z 257DEG 24KT 4322 7689

$$

LEVAN
2 follow-up statements
000 
WWUS51 KBUF 081948
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
348 PM EDT FRI MAY 8 2009

NYC117-081958-
/O.CAN.KBUF.SV.W.0004.000000T0000Z-090508T2030Z/
WAYNE NY-
348 PM EDT FRI MAY 8 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WAYNE COUNTY IS
CANCELLED...

LAT...LON 4326 7621 4323 7620 4320 7622 4322 7625
      4320 7629 4323 7632 4322 7648 4318 7647
      4319 7668 4332 7671 4347 7622 4325 7615
TIME...MOT...LOC 1948Z 257DEG 24KT 4326 7666

$$

NYC011-075-082030-
/O.CON.KBUF.SV.W.0004.000000T0000Z-090508T2030Z/
OSWEGO NY-CAYUGA NY-
348 PM EDT FRI MAY 8 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHWESTERN CAYUGA AND WESTERN OSWEGO COUNTIES...

AT 348 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
THIS STORM WAS LOCATED NEAR VICTORY...OR 13 MILES WEST OF 
FULTON...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HANNIBAL BY 400 PM EDT...
  FULTON BY 415 PM EDT...
  PALERMO BY 430 PM EDT...

LAT...LON 4326 7621 4323 7620 4320 7622 4322 7625
      4320 7629 4323 7632 4322 7648 4318 7647
      4319 7668 4332 7671 4347 7622 4325 7615
TIME...MOT...LOC 1948Z 257DEG 24KT 4326 7666

$$

LEVAN
000 
WWUS51 KBUF 082018
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
418 PM EDT FRI MAY 8 2009

NYC011-075-082028-
/O.CAN.KBUF.SV.W.0004.000000T0000Z-090508T2030Z/
OSWEGO NY-CAYUGA NY-
418 PM EDT FRI MAY 8 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAYUGA AND
WESTERN OSWEGO COUNTIES IS CANCELLED...

AT 418 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 CANCELLED.

LAT...LON 4326 7621 4323 7620 4320 7622 4322 7625
      4320 7629 4323 7632 4322 7648 4318 7647
      4319 7668 4332 7671 4347 7622 4325 7615
TIME...MOT...LOC 2018Z 257DEG 24KT 4330 7639

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:21 AM EDTSpecial Marine WarningBUF54 min
May 8, 3:16 PM EDTGale WatchBUF19 hr
May 8, 4:47 PM EDTSpecial Marine WarningBUF85 min

Nearby

Severe Thunderstorm Warnings in New York, 2009Every severe thunderstorm warning in 2009

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.