Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 5, NWS Buffalo, NY

January 9, 2008Genesee County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jan 9, 2008, 4:24 AM EST for Genesee County, Wyoming County, New York. It was in force for 33 min. 3 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 9, 2008, 4:24 AM EST (09:24 UTC)
Expired: Jan 9, 2008, 4:57 AM EST
In force: 33 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Genesee County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 57 km from the middle of the area, began a volume at 09:27 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 9, 4:35 AM EST	TSTM WND GST 0	Batavia, NY	TREES/POWER LINES DOWN
Jan 9, 4:40 AM EST	TSTM WND GST 70	Warsaw, NY	TREES/POWER LINES DOWN
Jan 9, 4:50 AM EST	TSTM WND DMG	Le Roy, NY	LARGE TREE AND LIMBS 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
Jan 9, 3:31 AM EST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.4 hours before the alert went out and 54 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: 15 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1361 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 275 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 090925
SVRBUF
NYC037-121-091030-
/O.NEW.KBUF.SV.W.0005.080109T0924Z-080109T1030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
424 AM EST WED JAN 9 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GENESEE COUNTY IN WESTERN NEW YORK
  WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 530 AM EST

* AT 421 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 17 MILES NORTHWEST OF DARIEN TO 10 MILES WEST OF JAVA
  CENTER...OR ALONG A LINE EXTENDING FROM AMHERST TO 10 MILES SOUTH
  OF EAST AURORA...AND MOVING EAST AT 70 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  JAVA CENTER AND BENNINGTON BY 435 AM EST...
  OAKFIELD...VARYSBURG AND DARIEN BY 440 AM EST...
  WARSAW AND BATAVIA BY 450 AM EST...
  BYRON...PORTAGEVILLE AND PAVILION BY 455 AM EST...

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 AM EST
WEDNESDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4305 7795 4304 7790 4296 7790 4295 7793
      4289 7796 4267 7796 4259 7803 4253 7804
      4253 7846 4312 7847 4313 7792
TIME...MOT...LOC 0924Z 268DEG 64KT 4302 7860 4262 7852

$$

ZAFF

1 follow-up statement

000 
WWUS51 KBUF 090957
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
457 AM EST WED JAN 9 2008

NYC037-121-091007-
/O.CAN.KBUF.SV.W.0005.000000T0000Z-080109T1030Z/
WYOMING NY-GENESEE NY-
457 AM EST WED JAN 9 2008

...THE SEVERE THUNDERSTORM WARNING FOR GENESEE AND WYOMING COUNTIES
IS CANCELLED...

AT 457 AM EST NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORMS THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN CANCELLED.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 AM EST
WEDNESDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4305 7795 4304 7790 4296 7790 4295 7793
      4289 7796 4267 7796 4259 7803 4253 7804
      4253 7846 4312 7847 4313 7792
TIME...MOT...LOC 0957Z 268DEG 64KT 4303 7780 4263 7772

$$

ZAFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 9, 3:22 AM EST	Severe Thunderstorm Warning	BUF	Chautauqua	38 min
Jan 9, 3:50 AM EST	Severe Thunderstorm Warning	BUF	Erie	55 min
Jan 9, 3:57 AM EST	Severe Thunderstorm Warning	BUF	Cattaraugus	63 min
Jan 9, 4:12 AM EST	Severe Thunderstorm Warning	BUF	Niagara	28 min
Jan 9, 4:32 AM EST	Severe Thunderstorm Warning	BUF	Orleans	36 min
Jan 9, 4:51 AM EST	Severe Thunderstorm Warning	BUF	Allegany	54 min
Jan 9, 4:53 AM EST	Severe Thunderstorm Warning	BUF	Livingston, Monroe	34 min
Jan 9, 5:10 AM EST	Severe Thunderstorm Warning	BUF	Ontario, Wayne	50 min
Jan 9, 5:40 AM EST	Severe Thunderstorm Warning	BUF	Cayuga	35 min
Jan 9, 5:46 AM EST	Severe Thunderstorm Warning	BUF	Oswego	44 min
Jan 9, 6:13 AM EST	Severe Thunderstorm Warning	BUF	Jefferson	47 min
Jan 9, 6:29 AM EST	High Wind Warning	BUF	Cattaraugus, Chautauqua, Erie, Genesee, Jefferson, Lewis and 5 more	9 hr
Jan 9, 6:32 AM EST	Severe Thunderstorm Warning	BUF	Lewis	43 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.