Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 3, NWS Buffalo, NY

January 17, 20125 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jan 17, 2012, 5:42 PM EST for 5 counties in New York. It was in force for 33 min. 6 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: Jan 17, 2012, 5:42 PM EST (22:42 UTC)
Expired: Jan 17, 2012, 6:15 PM EST
In force: 33 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Niagara County, NY, Orleans County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 15 km from the middle of the area, began a volume at 22:43 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
Jan 17, 6:00 PM EST	TSTM WND DMG	Buffalo, NY	TREES AND POWERLINES DOWN
Jan 17, 6:05 PM EST	TSTM WND DMG	West Seneca, NY	POWERLINES DOWN
Jan 17, 6:06 PM EST	TSTM WND GST 67	Ny Buffalo Intl Arpt, NY	ASOS
Jan 17, 6:15 PM EST	TSTM WND DMG	Alden, NY	ROOF OFF GARAGE...BLOWN INTO A FIELD 100 FEET...8 NW ALDEN.
Jan 17, 6:20 PM EST	TSTM WND DMG	Darien, NY	TREES AND POWERLINES DOWN
Jan 17, 6:20 PM EST	TSTM WND DMG	Pembroke, NY	TREES AND POWERLINES DOWN

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, 10.7 hours before the alert went out and 17 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: 479 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 321 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.

240 
WUUS51 KBUF 172242
SVRBUF
NYC029-037-063-073-121-172315-
/O.NEW.KBUF.SV.W.0003.120117T2242Z-120117T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
542 PM EST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ERIE COUNTY IN WESTERN NEW YORK
  WESTERN GENESEE COUNTY IN WESTERN NEW YORK
  SOUTHERN NIAGARA COUNTY IN WESTERN NEW YORK
  SOUTHWESTERN ORLEANS COUNTY IN WESTERN NEW YORK
  NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 615 PM EST

* AT 539 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM 10 MILES WEST OF GRAND ISLAND TO 8 MILES
  NORTHWEST OF LAKE ERIE BEACH...OR ALONG A LINE EXTENDING FROM 9
  MILES NORTHEAST OF PORT COLBORNE TO 13 MILES SOUTH OF PORT
  COLBORNE...AND MOVING EAST AT 70 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  BUFFALO...
  AMHERST...
  NORTH TONAWANDA...
  PENDLETON...
  ELMA...
  WALES CENTER...
  DARIEN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4271 7904 4271 7899 4279 7886 4294 7892
      4295 7897 4299 7903 4306 7901 4308 7908
      4318 7826 4273 7835 4262 7911
TIME...MOT...LOC 2241Z 262DEG 72KT 4299 7911 4269 7917

$$

WOOD

2 follow-up statements

695 
WWUS51 KBUF 172306
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
606 PM EST TUE JAN 17 2012

NYC029-037-063-073-121-172315-
/O.CON.KBUF.SV.W.0003.000000T0000Z-120117T2315Z/
GENESEE NY-WYOMING NY-NIAGARA NY-ORLEANS NY-ERIE NY-
606 PM EST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EST
FOR NORTHERN ERIE...SOUTHWESTERN ORLEANS...SOUTHERN NIAGARA...
NORTHWESTERN WYOMING AND WESTERN GENESEE COUNTIES...

AT 600 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM PENDLETON TO EDEN...OR ALONG A LINE
EXTENDING FROM AMHERST TO HAMBURG...MOVING EAST AT 70 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  BUFFALO...
  CHEEKTOWAGA...
  AMHERST...
  MARILLA...
  AKRON...

LAT...LON 4271 7904 4271 7899 4279 7886 4294 7892
      4295 7897 4299 7903 4306 7901 4308 7908
      4318 7826 4273 7835 4262 7911
TIME...MOT...LOC 2305Z 262DEG 72KT 4309 7864 4268 7875

$$

WOOD

980 
WWUS51 KBUF 172318
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
618 PM EST TUE JAN 17 2012

NYC029-037-063-073-121-172327-
/O.EXP.KBUF.SV.W.0003.000000T0000Z-120117T2315Z/
GENESEE NY-WYOMING NY-NIAGARA NY-ORLEANS NY-ERIE NY-
618 PM EST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ERIE...SOUTHWESTERN
ORLEANS...SOUTHERN NIAGARA...NORTHWESTERN WYOMING AND WESTERN GENESEE
COUNTIES HAS EXPIRED...

AT 617 PM EST NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD MOVED EAST OF THE WARNED 
AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

ADDITIONAL SEVERE THUNDERSTORM WARNINGS ARE IN EFFECT FOR PORTIONS 
OF ERIE...WYOMING...GENESEE...ORLEANS AND NIAGARA COUNTIES AS THIS 
LINE OF STORMS CONTINUES TO MOVE EAST ACROSS THE REGION.

LAT...LON 4271 7904 4271 7899 4279 7886 4294 7892
      4295 7897 4299 7903 4306 7901 4308 7908
      4318 7826 4273 7835 4262 7911
TIME...MOT...LOC 2306Z 262DEG 72KT 4308 7861 4267 7872

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 4:02 AM EST	Lake Effect Snow Watch	BUF	Cattaraugus, Chautauqua, Erie, Lewis, Oswego, Wyoming	11 hr
Jan 17, 4:05 AM EST	Gale Warning	BUF		30 hr
Jan 17, 4:05 AM EST	Small Craft Advisory	BUF		6 hr
Jan 17, 4:15 AM EST	Wind Advisory	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	6 hr
Jan 17, 9:57 AM EST	High Wind Warning	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	16 hr
Jan 17, 3:06 PM EST	Lake Effect Snow Advisory	BUF	Cattaraugus, Cayuga, Chautauqua, Erie, Lewis, Oswego and 2 more	19 hr
Jan 17, 5:04 PM EST	Special Marine Warning	BUF		41 min
Jan 17, 5:08 PM EST	Severe Thunderstorm Warning	BUF	Chautauqua	37 min
Jan 17, 5:24 PM EST	Special Marine Warning	BUF		51 min
Jan 17, 5:36 PM EST	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie, Wyoming	39 min
Jan 17, 6:11 PM EST	Severe Thunderstorm Warning	BUF	Erie, Genesee, Livingston, Monroe, Niagara, Orleans and 1 more	34 min
Jan 17, 6:15 PM EST	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Wyoming	30 min
Jan 17, 6:43 PM EST	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wyoming	47 min
Jan 17, 6:45 PM EST	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	45 min

Nearby

Severe Thunderstorm Warnings in New York, 2012 Every severe thunderstorm warning in 2012

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.