Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 18, NWS Buffalo, NY

April 12, 2008Monroe County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 12, 2008, 1:56 AM EDT for Monroe County, Ontario County, Wayne County, New York. It was in force for 19 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: Apr 12, 2008, 1:56 AM EDT (05:56 UTC)
Expired: Apr 12, 2008, 2:15 AM EDT
In force: 19 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Monroe County, NY, Ontario County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 123 km from the middle of the area, began a volume at 05:56 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, 5.9 hours before the alert went out and 120 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: 81 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1292 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 192 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 120556
SVRBUF
NYC055-069-117-120615-
/O.NEW.KBUF.SV.W.0018.080412T0556Z-080412T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
156 AM EDT SAT APR 12 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MONROE COUNTY IN WESTERN NEW YORK
  NORTH CENTRAL ONTARIO COUNTY IN WESTERN NEW YORK
  WESTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 215 AM EDT

* AT 155 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
  WERE LOCATED ALONG A LINE EXTENDING FROM PENFIELD TO 5 MILES WEST 
  OF VICTOR...AND MOVING NORTHEAST AT 60 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WILLIAMSON AND MARION BY 205 AM EDT...

LAT...LON 4329 7708 4305 7710 4295 7754 4324 7749
TIME...MOT...LOC 0556Z 239DEG 61KT 4323 7731 4304 7735

$$

RSH

2 follow-up statements

000 
WWUS51 KBUF 120603
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
203 AM EDT SAT APR 12 2008

NYC055-069-120613-
/O.CAN.KBUF.SV.W.0018.000000T0000Z-080412T0615Z/
ONTARIO NY-MONROE NY-
203 AM EDT SAT APR 12 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONROE AND NORTH
CENTRAL ONTARIO COUNTIES IS CANCELLED...

LAT...LON 4329 7708 4305 7710 4304 7717 4304 7723
      4303 7725 4303 7736 4314 7736 4315 7739
      4325 7738
TIME...MOT...LOC 0603Z 239DEG 61KT 4328 7716 4309 7721

$$

NYC117-120615-
/O.CON.KBUF.SV.W.0018.000000T0000Z-080412T0615Z/
WAYNE NY-
203 AM EDT SAT APR 12 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EDT
FOR WESTERN WAYNE COUNTY...

AT 200 AM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ONTARIO TO MACEDON...
MOVING NORTHEAST AT 60 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RURAL WAYNE COUNTY.

LAT...LON 4329 7708 4305 7710 4304 7717 4304 7723
      4303 7725 4303 7736 4314 7736 4315 7739
      4325 7738
TIME...MOT...LOC 0603Z 239DEG 61KT 4328 7716 4309 7721

$$

RSH

000 
WWUS51 KBUF 120614
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
214 AM EDT SAT APR 12 2008

NYC117-120624-
/O.EXP.KBUF.SV.W.0018.000000T0000Z-080412T0615Z/
WAYNE NY-
214 AM EDT SAT APR 12 2008

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WAYNE COUNTY WILL
EXPIRE AT 215 AM EDT...

AT 214 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4329 7708 4305 7710 4304 7717 4304 7723
      4303 7725 4303 7736 4314 7736 4315 7739
      4325 7738
TIME...MOT...LOC 0614Z 239DEG 61KT 4337 7693 4318 7699

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 12:51 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	24 min
Apr 12, 1:15 AM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Wyoming	30 min
Apr 12, 1:34 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	26 min
Apr 12, 1:43 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Wyoming	32 min
Apr 12, 2:08 AM EDT	Special Marine Warning	BUF		37 min
Apr 12, 2:37 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Jefferson, Oswego	23 min
Apr 12, 3:11 AM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	34 min

Nearby

Severe Thunderstorm Warnings in New York, 2008 Every 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.