Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 61, NWS Buffalo, NY

August 5, 2012Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 5, 2012, 2:44 PM EDT for Monroe County, New York. It was in force for 21 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: Aug 5, 2012, 2:44 PM EDT (18:44 UTC)
Expired: Aug 5, 2012, 3:05 PM EDT
In force: 21 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 93 km from the middle of the area, began a volume at 18:47 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
Aug 5, 3:01 PM EDT	TSTM WND DMG	1 S Irondequoit, NY	TREE 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
Aug 5, 12:42 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.7 hours before the alert went out and 91 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: 128 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1179 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

083 
WUUS51 KBUF 051844
SVRBUF
NYC055-051930-
/O.NEW.KBUF.SV.W.0061.120805T1844Z-120805T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
244 PM EDT SUN AUG 5 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MONROE COUNTY IN WESTERN NEW YORK

* UNTIL 330 PM EDT

* AT 243 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 NEAR SPENCERPORT...OR NEAR
  HILTON...AND MOVING EAST AT 55 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  GREECE...
  HILTON...
  BRADDOCK BAY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4333 7771 4329 7766 4324 7755 4328 7739
      4328 7738 4322 7738 4313 7791 4314 7794
      4328 7798 4335 7779
TIME...MOT...LOC 1844Z 248DEG 48KT 4324 7780

$$

ZAFF

1 follow-up statement

721 
WWUS51 KBUF 051905
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
305 PM EDT SUN AUG 5 2012

NYC055-051915-
/O.CAN.KBUF.SV.W.0061.000000T0000Z-120805T1930Z/
MONROE NY-
305 PM EDT SUN AUG 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MONROE COUNTY IS
CANCELLED...

AT 305 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4333 7771 4329 7766 4324 7755 4328 7739
      4328 7738 4322 7738 4313 7791 4314 7794
      4328 7798 4335 7779
TIME...MOT...LOC 1905Z 248DEG 48KT 4334 7744

$$

TJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 11:53 AM EDT	Special Marine Warning	BUF		2 hr
Aug 5, 12:55 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	50 min
Aug 5, 1:24 PM EDT	Severe Thunderstorm Warning	BUF	Erie	51 min
Aug 5, 1:36 PM EDT	Severe Thunderstorm Warning	BUF	Erie	39 min
Aug 5, 1:56 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	49 min
Aug 5, 2:12 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	28 min
Aug 5, 2:27 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Wyoming	33 min
Aug 5, 2:34 PM EDT	Special Marine Warning	BUF		56 min
Aug 5, 2:40 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	50 min
Aug 5, 2:54 PM EDT	Special Marine Warning	BUF		96 min
Aug 5, 2:57 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario	33 min
Aug 5, 3:11 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	64 min
Aug 5, 3:42 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	63 min
Aug 5, 3:49 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	26 min
Aug 5, 3:57 PM EDT	Flash Flood Warning	BUF	Jefferson	111 min
Aug 5, 4:11 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	49 min
Aug 5, 4:13 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	32 min
Aug 5, 4:32 PM EDT	Areal Flood Advisory	BUF	Jefferson	77 min
Aug 5, 7:04 PM EDT	Special Weather Statement	BUF	Monroe	56 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.