Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 28, NWS Buffalo, NY

June 12, 2015Livingston County, Monroe County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 12, 2015, 2:52 PM EDT for Livingston County, Monroe County, Ontario County, New York. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 12, 2015, 2:52 PM EDT (18:52 UTC)
Expired: Jun 12, 2015, 3:30 PM EDT
In force: 38 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Livingston County, NY, Monroe County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 92 km from the middle of the area, began a volume at 18:53 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.9 hours before the alert went out and 89 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1195 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 215 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.

039 
WUUS51 KBUF 121852
SVRBUF
NYC051-055-069-121930-
/O.NEW.KBUF.SV.W.0028.150612T1852Z-150612T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
252 PM EDT FRI JUN 12 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  NORTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN MONROE COUNTY IN WESTERN NEW YORK...

* UNTIL 330 PM EDT

* AT 252 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED NEAR PAVILION...OR NEAR
  GENESEO...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CANANDAIGUA...GENESEO...FAIRPORT...AVON...VICTOR...HONEOYE FALLS...
  BRISTOL AND LIMA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 390 BETWEEN EXITS 8 AND 11.
 INTERSTATE 90 BETWEEN EXITS 45 AND 44.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4283 7796 4290 7796 4312 7743 4306 7737
      4304 7737 4303 7734 4287 7718 4279 7792
TIME...MOT...LOC 1852Z 249DEG 38KT 4284 7793 

$$

ZAFF

1 follow-up statement

531 
WWUS51 KBUF 121922
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
322 PM EDT FRI JUN 12 2015

NYC051-055-069-121932-
/O.EXP.KBUF.SV.W.0028.000000T0000Z-150612T1930Z/
ONTARIO NY-LIVINGSTON NY-MONROE NY-
322 PM EDT FRI JUN 12 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ONTARIO...
NORTHERN LIVINGSTON AND SOUTHEASTERN MONROE COUNTIES WILL EXPIRE AT
330 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4283 7796 4290 7796 4312 7743 4306 7737
      4304 7737 4303 7734 4287 7718 4279 7792
TIME...MOT...LOC 1918Z 249DEG 38KT 4284 7793 

$$

ZAFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 10:16 AM EDT	Flash Flood Watch	BUF	Allegany, Cayuga, Jefferson, Lewis, Livingston, Monroe and 3 more	8 hr
Jun 12, 2:59 PM EDT	Special Marine Warning	BUF		61 min
Jun 12, 3:14 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	61 min
Jun 12, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	55 min
Jun 12, 3:30 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	60 min
Jun 12, 4:04 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	26 min
Jun 12, 4:15 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	60 min
Jun 12, 4:35 PM EDT	Special Weather Statement	BUF	Ontario	55 min
Jun 12, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario	65 min
Jun 12, 4:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston	63 min
Jun 12, 5:20 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	32 min
Jun 12, 5:31 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	29 min
Jun 12, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	21 min
Jun 12, 5:40 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	35 min

Nearby

Severe Thunderstorm Warnings in New York, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.