Alert archive / New York / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 9, NWS Buffalo, NY

May 16, 20095 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 16, 2009, 12:38 PM EDT for 5 counties in New York. It was in force for 67 min. 11 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
May 16, 2009, 12:38 PM EDT (16:38 UTC)
Expired
May 16, 2009, 1:45 PM EDT
In force
67 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Jefferson County, NY, Lewis County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 59 km from the middle of the area, began a volume at 16:37 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 16, 12:42 PM EDTTSTM WND DMG1 Se Hannibal, NYTREE DOWN ON ROAD NEAR CNTY RTE21 AND PEATBED RD.
May 16, 1:05 PM EDTTSTM WND DMG1 Se Hannibal, NYTREE DOWN ON ROAD NEAR CNTY RTE21 AND PEATBED RD.
May 16, 1:05 PM EDTTSTM WND DMG3 Se Fulton, NYTREE DOWN NEAR MULLIN RD AND RR CROSSING
May 16, 1:17 PM EDTTSTM WND DMG2 W Palermo, NY30 POPLE TREES UP TO 12 TO 15 INCHES DIAMETER FELL. GARAGE DAMAGED.
May 16, 1:20 PM EDTTSTM WND DMGPalermo, NYTREE DOWN NEAR CNTY RTE-45 AND RTE 3.
May 16, 1:25 PM EDTTSTM WND DMGPalermo, NYTREE DOWN NEAR CNTY RTE-45 AND RTE 3.
May 16, 1:30 PM EDTTSTM WND DMGPalermo, NYMULTIPLE TREES BLOWN DOWN
May 16, 1:32 PM EDTTSTM WND DMG3 Nw Parish, NYSEVERAL TREES DOWN
May 16, 1:35 PM EDTTSTM WND DMG3 Se Fulton, NYTREE DOWN NEAR MULLIN RD AND RR CROSSING
May 16, 1:37 PM EDTTSTM WND DMG3 Nw Parish, NYSEVERAL TREES DOWN
May 16, 1:51 PM EDTTSTM WND DMG1 E Williamstown, NYTREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 4.6 hours before the alert went out and 203 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, Albany, NY at 12:00Z on 2009-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Albany, NY at 12:00Z on 2009-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
157 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 161638
SVRBUF
NYC011-045-049-075-117-161745-
/O.NEW.KBUF.SV.W.0009.090516T1638Z-090516T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1238 PM EDT SAT MAY 16 2009

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 145 PM EDT

* AT 1237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED 12 MILES WEST OF FULTON...AND MOVING EAST AT 35
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FULTON BY 1255 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...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 4347 7581 4334 7587 4332 7585 4326 7586
      4323 7611 4326 7620 4321 7621 4322 7625
      4320 7630 4323 7632 4323 7646 4318 7647
      4315 7668 4330 7681 4353 7635 4353 7625
      4359 7622 4384 7569 4342 7556
TIME...MOT...LOC 1638Z 252DEG 30KT 4328 7664

$$

TJP
1 follow-up statement
000 
WWUS51 KBUF 161707
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
107 PM EDT SAT MAY 16 2009

NYC011-045-049-075-117-161745-
/O.CON.KBUF.SV.W.0009.000000T0000Z-090516T1745Z/
LEWIS NY-WAYNE NY-OSWEGO NY-JEFFERSON NY-CAYUGA NY-
107 PM EDT SAT MAY 16 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR NORTHWESTERN CAYUGA...SOUTH CENTRAL JEFFERSON...OSWEGO...
NORTHEASTERN WAYNE AND SOUTHWESTERN LEWIS COUNTIES...

AT 104 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. 
THIS STORM WAS LOCATED NEAR FULTON...MOVING EAST AT 30 MPH. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  PALERMO BY 120 PM EDT...
  PARISH BY 135 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.

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

&&

LAT...LON 4347 7581 4334 7587 4332 7585 4326 7586
      4323 7611 4326 7620 4321 7621 4322 7625
      4320 7630 4323 7632 4323 7646 4318 7647
      4315 7668 4330 7681 4353 7635 4353 7625
      4359 7622 4384 7569 4342 7556
TIME...MOT...LOC 1705Z 251DEG 25KT 4334 7641

$$

TJP

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 4:22 AM EDTSmall Craft AdvisoryBUF40 hr
May 16, 8:55 AM EDTSpecial Marine WarningBUF50 min
May 16, 12:05 PM EDTSpecial Marine WarningBUF55 min
May 16, 1:45 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego60 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.