Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 40, NWS Buffalo, NY

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

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2012, 1:16 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 59 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: Jul 26, 2012, 1:16 PM EDT (17:16 UTC)
Expired: Jul 26, 2012, 2:15 PM EDT
In force: 59 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Cattaraugus County, NY, Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 109 km from the middle of the area, began a volume at 17:18 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, 1:30 PM EDT	TSTM WND DMG	Sherman, NY	TREE ON WIRES
Jul 26, 1:40 PM EDT	TSTM WND DMG	2 W Summerdale, NY	TREE DOWN ON WIRES
Jul 26, 2:04 PM EDT	TSTM WND DMG	Randolph, NY	TREE BLOCKING ROADWAY

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, 5.3 hours before the alert went out and 197 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.

092 
WUUS51 KBUF 261716
SVRBUF
NYC009-013-261815-
/O.NEW.KBUF.SV.W.0040.120726T1716Z-120726T1815Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  SOUTHERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 215 PM EDT

* AT 115 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10
  MILES WEST OF FINDLEY LAKE...OR 35 MILES WEST OF JAMESTOWN...AND
  MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  FINDLEY LAKE...
  LAKEWOOD...
  JAMESTOWN...
  FREWSBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4222 7977 4225 7888 4199 7890 4199 7891
      4200 7977 4203 7977
TIME...MOT...LOC 1716Z 273DEG 43KT 4213 7986

$$

RSH

2 follow-up statements

369 
WWUS51 KBUF 261740
SVSBUF

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

NYC009-013-261815-
/O.CON.KBUF.SV.W.0040.000000T0000Z-120726T1815Z/
CATTARAUGUS NY-CHAUTAUQUA NY-
140 PM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHERN CHAUTAUQUA AND SOUTHWESTERN CATTARAUGUS COUNTIES...

AT 136 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR PANAMA...OR 17 MILES WEST OF JAMESTOWN...MOVING EAST AT
50 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  LAKEWOOD...
  PANAMA...
  JAMESTOWN...
  FREWSBURG...
  FALCONER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4217 7964 4223 7949 4225 7888 4199 7890
      4200 7977 4203 7977
TIME...MOT...LOC 1739Z 273DEG 43KT 4208 7951

$$

HIBBERT

398 
WWUS51 KBUF 261815
SVSBUF

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

NYC009-013-261824-
/O.EXP.KBUF.SV.W.0040.000000T0000Z-120726T1815Z/
CATTARAUGUS NY-CHAUTAUQUA NY-
215 PM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHAUTAUQUA AND
SOUTHWESTERN CATTARAUGUS COUNTIES WILL EXPIRE AT 215 PM EDT...

AT 214 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 4217 7964 4223 7949 4225 7888 4199 7890
      4200 7977 4203 7977
TIME...MOT...LOC 1814Z 273DEG 43KT 4206 7895

$$

HIBBERT

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, 1:37 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	38 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.