Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 41, NWS Buffalo, NY

July 26, 2012Cattaraugus County, Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2012, 1:37 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 38 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: Jul 26, 2012, 1:37 PM EDT (17:37 UTC)
Expired: Jul 26, 2012, 2:15 PM EDT
In force: 38 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Cattaraugus County, NY, Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 60 km from the middle of the area, began a volume at 17:36 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
Jul 26, 2:04 PM EDT	TSTM WND DMG	1 Nw Ellicottville, NY	TREE DOWN ON WIRES

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
Jul 26, 1:16 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.6 hours before the alert went out and 246 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: 2136 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 284 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 13.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

332 
WUUS51 KBUF 261737
SVRBUF
NYC009-013-261815-
/O.NEW.KBUF.SV.W.0041.120726T1737Z-120726T1815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
137 PM EDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 215 PM EDT

* AT 136 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 15 MILES WEST OF OTTO...OR 14
  MILES EAST OF FREDONIA...AND MOVING EAST AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  OTTO...
  ASHFORD HOLLOW...
  ASHFORD...
  FRANKLINVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4231 7918 4243 7918 4245 7892 4244 7892
      4245 7890 4244 7888 4244 7884 4246 7880
      4246 7878 4247 7875 4250 7840 4225 7840
TIME...MOT...LOC 1737Z 271DEG 39KT 4237 7906

$$

RSH

2 follow-up statements

389 
WWUS51 KBUF 261758
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
158 PM EDT THU JUL 26 2012

NYC013-261806-
/O.CAN.KBUF.SV.W.0041.000000T0000Z-120726T1815Z/
CHAUTAUQUA NY-
158 PM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHAUTAUQUA COUNTY
IS CANCELLED...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN 
CHAUTAUQUA COUNTY. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT 
UNTIL 1000 PM EDT THURSDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4230 7895 4247 7873 4250 7840 4226 7840
      4225 7841
TIME...MOT...LOC 1756Z 277DEG 38KT 4241 7863 4228 7885

$$

NYC009-261815-
/O.CON.KBUF.SV.W.0041.000000T0000Z-120726T1815Z/
CATTARAUGUS NY-
158 PM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR NORTHERN CATTARAUGUS COUNTY...

AT 155 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ASHFORD HOLLOW TO CATTARAUGUS...OR ALONG A LINE
EXTENDING FROM 17 MILES NORTH OF SALAMANCA TO 11 MILES NORTHWEST OF
SALAMANCA...MOVING EAST AT 45 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  CATTARAUGUS...
  MACHIAS...
  LIME LAKE...
  FRANKLINVILLE...
  ASHFORD HOLLOW...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4230 7895 4247 7873 4250 7840 4226 7840
      4225 7841
TIME...MOT...LOC 1756Z 277DEG 38KT 4241 7863 4228 7885

$$

HIBBERT

194 
WWUS51 KBUF 261819
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
219 PM EDT THU JUL 26 2012

NYC009-261829-
/O.EXP.KBUF.SV.W.0041.000000T0000Z-120726T1815Z/
CATTARAUGUS NY-
219 PM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CATTARAUGUS COUNTY
HAS EXPIRED...

AT 219 PM 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.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT 
THURSDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4230 7895 4247 7873 4250 7840 4226 7840
      4225 7841
TIME...MOT...LOC 1758Z 277DEG 38KT 4241 7860 4228 7882

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 2:38 AM EDT	Special Marine Warning	BUF		39 min
Jul 26, 2:53 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	52 min
Jul 26, 2:59 AM EDT	Special Marine Warning	BUF		61 min
Jul 26, 3:11 AM EDT	Special Marine Warning	BUF		64 min
Jul 26, 3:20 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	55 min
Jul 26, 3:32 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Wyoming	43 min
Jul 26, 4:02 AM EDT	Special Marine Warning	BUF		43 min
Jul 26, 4:27 AM EDT	Special Weather Statement	BUF	Cattaraugus, Chautauqua	63 min
Jul 26, 4:30 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	33 min
Jul 26, 1:07 PM EDT	Special Weather Statement	BUF	Cattaraugus, Chautauqua	68 min
Jul 26, 1:16 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	59 min
Jul 26, 2:12 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	48 min
Jul 26, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	42 min
Jul 26, 2:39 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	51 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.