Alert archive / New York / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 66, NWS Buffalo, NY

September 29, 2005Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 29, 2005, 6:47 AM EDT for Ontario County, New York. It was in force for 45 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: Sep 29, 2005, 6:47 AM EDT (10:47 UTC)
Expired: Sep 29, 2005, 7:32 AM EDT
In force: 45 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Ontario County, NY

The radar

The Buffalo radar (KBUF), 116 km from the middle of the area, began a volume at 10:48 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

Time	Report	Where	Remark
Sep 29, 7:20 AM EDT	TSTM WND DMG	5 E Canandaigua, NY	TREES DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 29, 4:15 AM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 10.8 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1631 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 328 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 291048
SVRBUF
NYC069-291145-
/O.NEW.KBUF.SV.W.0066.050929T1047Z-050929T1145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
647 AM EDT THU SEP 29 2005

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 745 AM EDT

* AT 641 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A   
  LINE EXTENDING FROM VICTOR TO DANSVILLE...AND WERE MOVING EAST AT  
  45 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  NAPLES AND CANANDAIGUA BY 655 AM EDT...
  CLIFTON SPRINGS BY 705 AM EDT...
  PHELPS BY 710 AM EDT...
  GENEVA BY 720 AM EDT...

THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE AS 
THEY MOVED ACROSS THE AREA.  IF YOU ARE IN THE PATH OF THESE STORMS 
PLEASE TAKE SHELTER IMMEDIATELY. 

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BUFFALO.

LAT...LON 4277 7731 4269 7737 4259 7737 4259 7749
      4267 7747 4268 7758 4276 7760 4293 7752
      4295 7747 4303 7747 4304 7714 4301 7712
      4301 7697 4301 7697 4277 7697

$$

NIZIOL

1 follow-up statement

000 
WWUS51 KBUF 291132
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
731 AM EDT THU SEP 29 2005

NYC069-291141-
/O.CAN.KBUF.SV.W.0066.000000T0000Z-050929T1145Z/
ONTARIO NY-
731 AM EDT THU SEP 29 2005

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO COUNTY IS CANCELLED...

THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND MOVED 
OUT OF THE AREA. THUS...THE WARNING HAS BEEN CANCELED. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON FOR
CENTRAL NEW YORK.

LAT...LON 4277 7731 4269 7737 4259 7737 4259 7749
      4267 7747 4268 7758 4276 7760 4293 7752
      4295 7747 4303 7747 4304 7714 4301 7712
      4301 7697 4301 7697 4277 7697

$$

TJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 29, 4:18 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	57 min
Sep 29, 4:22 AM EDT	Special Marine Warning	BUF		83 min
Sep 29, 4:41 AM EDT	Special Marine Warning	BUF		94 min
Sep 29, 4:49 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Niagara	71 min
Sep 29, 5:23 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Orleans, Wyoming	62 min
Sep 29, 5:51 AM EDT	Special Marine Warning	BUF		84 min
Sep 29, 5:52 AM EDT	Severe Thunderstorm Warning	BUF	Allegany	53 min
Sep 29, 6:08 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe	67 min
Sep 29, 6:54 AM EDT	Severe Thunderstorm Warning	BUF	Wayne	66 min
Sep 29, 6:58 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Oswego	62 min
Sep 29, 7:37 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga	23 min
Sep 29, 7:43 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	62 min
Sep 29, 7:50 AM EDT	Special Marine Warning	BUF		40 min
Sep 29, 7:58 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Oswego	47 min
Sep 29, 8:35 AM EDT	Special Marine Warning	BUF		40 min
Sep 29, 8:48 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	33 min
Sep 29, 3:46 PM EDT	Frost Advisory	BUF	Allegany, Cattaraugus	16 hr

Nearby

Severe Thunderstorm Warnings in New York, 2005 Every severe thunderstorm warning in 2005

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.