Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 48, NWS Buffalo, NY

July 8, 2014Erie County, Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 8, 2014, 3:35 PM EDT for Erie County, Niagara County, New York. It was in force for 55 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 8, 2014, 3:35 PM EDT (19:35 UTC)
Expired: Jul 8, 2014, 4:30 PM EDT
In force: 55 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Erie County, NY, Niagara County, NY

The radar

The Buffalo radar (KBUF), 10 km from the middle of the area, began a volume at 19:36 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 8, 4:05 PM EDT	TSTM WND DMG	Boston, NY	LARGE TREE DOWN ON BOSTON-COLDEN ROAD BLOCKING MOST OF THE 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 8, 1:04 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.6 hours before the alert went out and 11 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: 232 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

849 
WUUS51 KBUF 081935
SVRBUF
NYC029-063-082030-
/O.NEW.KBUF.SV.W.0048.140708T1935Z-140708T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
335 PM EDT TUE JUL 8 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ERIE COUNTY IN WESTERN NEW YORK
  NIAGARA COUNTY IN WESTERN NEW YORK

THIS ALSO INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 49 AND 57.

* UNTIL 430 PM EDT

* AT 333 PM EDT...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 LEWISTON TO 7 MILES WEST OF BUFFALO TO 6 MILES SOUTHWEST OF   
  BOSTON...AND MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  EAST CONCORD...
  SANBORN...
  SARDINIA...
  NEWFANE...
  ALDEN...
  AKRON...
  MIDDLEPORT...
  LEWISTON...
  NIAGARA FALLS...
  BUFFALO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THESE STORMS.
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 4248 7873 4276 7890 4279 7886 4293 7891
      4299 7903 4306 7901 4307 7906 4311 7908
      4314 7906 4326 7908 4332 7885 4337 7847
      4286 7849 4253 7846 4251 7860 4248 7870
TIME...MOT...LOC 1934Z 256DEG 43KT 4321 7905 4291 7898
          4256 7877

$$

HITCHCOCK

1 follow-up statement

831 
WWUS51 KBUF 082031
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
431 PM EDT TUE JUL 8 2014

NYC029-063-082041-
/O.EXP.KBUF.SV.W.0048.000000T0000Z-140708T2030Z/
NIAGARA NY-ERIE NY-
431 PM EDT TUE JUL 8 2014

...THE SEVERE THUNDERSTORM WARNING FOR ERIE AND NIAGARA COUNTIES HAS 
EXPIRED...

AT 431 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 REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4248 7873 4276 7890 4279 7886 4293 7891
      4299 7903 4306 7901 4307 7906 4311 7908
      4314 7906 4326 7908 4332 7885 4337 7847
      4286 7849 4253 7846 4251 7860 4248 7870
TIME...MOT...LOC 1935Z 256DEG 43KT 4321 7903 4291 7896
          4256 7875

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:12 PM EDT	Special Marine Warning	BUF		63 min
Jul 7, 9:02 PM EDT	Special Marine Warning	BUF		58 min
Jul 7, 10:20 PM EDT	Special Marine Warning	BUF		25 min
Jul 7, 10:25 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Orleans, Wyoming	65 min
Jul 8, 2:03 AM EDT	Small Craft Advisory	BUF		33 hr
Jul 8, 1:01 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	59 min
Jul 8, 1:56 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Wyoming	49 min
Jul 8, 2:43 PM EDT	Special Marine Warning	BUF		92 min
Jul 8, 2:45 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	60 min
Jul 8, 3:06 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	54 min
Jul 8, 3:08 PM EDT	Special Marine Warning	BUF		82 min
Jul 8, 3:28 PM EDT	Special Marine Warning	BUF		92 min
Jul 8, 3:46 PM EDT	Special Weather Statement	BUF	Lewis	44 min
Jul 8, 4:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie	45 min
Jul 8, 4:10 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans, Wyoming	44 min
Jul 8, 4:21 PM EDT	Special Marine Warning	BUF		84 min
Jul 8, 4:31 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming	57 min
Jul 8, 4:43 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	62 min
Jul 8, 4:51 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Oswego, Wayne	54 min
Jul 8, 4:57 PM EDT	Special Marine Warning	BUF		63 min
Jul 8, 4:58 PM EDT	Areal Flood Advisory	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming	3 hr
Jul 8, 5:02 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario, Wayne	58 min
Jul 8, 5:16 PM EDT	Special Marine Warning	BUF		89 min
Jul 8, 5:41 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	79 min
Jul 8, 5:56 PM EDT	Special Marine Warning	BUF		64 min
Jul 8, 6:03 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Oswego	57 min
Jul 8, 6:12 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	78 min
Jul 8, 6:54 PM EDT	Areal Flood Advisory	BUF	Jefferson, Lewis	3 hr
Jul 8, 7:30 PM EDT	Special Marine Warning	BUF		60 min

Nearby

Severe Thunderstorm Warnings in New York, 2014 Every severe thunderstorm warning in 2014

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.