Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 2, NWS Buffalo, NY

May 10, 20134 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 10, 2013, 4:21 PM EDT for 4 counties in New York. It was in force for 54 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: May 10, 2013, 4:21 PM EDT (20:21 UTC)
Expired: May 10, 2013, 5:15 PM EDT
In force: 54 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Orleans County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 14 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 10 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: 2256 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 105 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.

747 
WUUS51 KBUF 102021
SVRBUF
NYC029-037-073-121-102115-
/O.NEW.KBUF.SV.W.0002.130510T2021Z-130510T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
421 PM EDT FRI MAY 10 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ERIE COUNTY IN WESTERN NEW YORK
  GENESEE COUNTY IN WESTERN NEW YORK
  SOUTH CENTRAL ORLEANS COUNTY IN WESTERN NEW YORK
  NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 515 PM EDT

* AT 419 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 NEAR
  HAMBURG...AND MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  WEST SENECA...
  EAST AURORA...
  ELMA CENTER...
  MARILLA...
  ALDEN...
  BENNINGTON...
  DARIEN...
  BATAVIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4279 7886 4281 7888 4283 7888 4319 7809
      4295 7792 4263 7885 4274 7893
TIME...MOT...LOC 2022Z 241DEG 31KT 4276 7879

$$

JJR

3 follow-up statements

800 
WUUS51 KBUF 102025 CCA
SVRBUF
NYC029-037-073-121-102115-
/O.COR.KBUF.SV.W.0002.130510T2021Z-130510T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE BUFFALO NY
421 PM EDT FRI MAY 10 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ERIE COUNTY IN WESTERN NEW YORK
  GENESEE COUNTY IN WESTERN NEW YORK
  SOUTH CENTRAL ORLEANS COUNTY IN WESTERN NEW YORK
  NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 515 PM EDT

* AT 419 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 NEAR
  HAMBURG...AND MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  WEST SENECA...
  EAST AURORA...
  ELMA CENTER...
  MARILLA...
  ALDEN...
  BENNINGTON...
  DARIEN...
  BATAVIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4279 7886 4281 7888 4283 7888 4319 7809
      4295 7792 4263 7885 4274 7893
TIME...MOT...LOC 2022Z 241DEG 31KT 4276 7879

$$

JJR

479 
WWUS51 KBUF 102054
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
454 PM EDT FRI MAY 10 2013

NYC029-037-073-121-102115-
/O.CON.KBUF.SV.W.0002.000000T0000Z-130510T2115Z/
GENESEE NY-WYOMING NY-ORLEANS NY-ERIE NY-
454 PM EDT FRI MAY 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL ERIE...SOUTHEASTERN ORLEANS...NORTHWESTERN WYOMING AND
GENESEE COUNTIES...

AT 449 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 ALDEN...OR 8 MILES EAST OF LANCASTER...MOVING NORTHEAST 
AT 35 MPH. IN ADDITION...A SECOND AND SIMILAR STORM WAS NEAR WEST 
SENECA...AND ALSO MOVING NORTHEAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  DARIEN...
  EAST PEMBROKE...
  BATAVIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4279 7886 4281 7888 4283 7888 4319 7809
      4295 7792 4263 7885 4274 7893
TIME...MOT...LOC 2054Z 241DEG 31KT 4289 7846

$$

JJR

051 
WWUS51 KBUF 102113
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
513 PM EDT FRI MAY 10 2013

NYC029-037-073-121-102123-
/O.CAN.KBUF.SV.W.0002.000000T0000Z-130510T2115Z/
GENESEE NY-WYOMING NY-ORLEANS NY-ERIE NY-
513 PM EDT FRI MAY 10 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ERIE...SOUTHEASTERN
ORLEANS...NORTHWESTERN WYOMING AND GENESEE COUNTIES IS CANCELLED...

AT 513 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORMS THAT PROMPTED THE WARNING HAD WEAKENED AND WERE NO 
LONGER SEVERE...THUS THE WARNING HAS BEEN CANCELLED. THIS STATED... 
ANOTHER SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN 
ERIE AND GENESEE COUNTIES UNTIL 530 PM.

LAT...LON 4279 7886 4281 7888 4283 7888 4319 7809
      4295 7792 4263 7885 4274 7893
TIME...MOT...LOC 2113Z 241DEG 31KT 4297 7826

$$

JJR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 2:48 PM EDT	Special Weather Statement	BUF	Cattaraugus	42 min
May 10, 3:47 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	43 min
May 10, 4:06 PM EDT	Special Marine Warning	BUF		54 min
May 10, 4:22 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	38 min
May 10, 4:27 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Wyoming	63 min
May 10, 4:33 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	57 min
May 10, 4:39 PM EDT	Tornado Warning	BUF	Chautauqua	36 min
May 10, 4:52 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	53 min
May 10, 5:06 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	24 min
May 10, 5:29 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	46 min
May 10, 5:34 PM EDT	Special Marine Warning	BUF		26 min
May 10, 5:35 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	55 min
May 10, 5:51 PM EDT	Special Marine Warning	BUF		54 min
May 10, 6:02 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	28 min
May 10, 6:08 PM EDT	Areal Flood Advisory	BUF	Erie, Genesee, Niagara, Orleans	3 hr
May 10, 6:21 PM EDT	Areal Flood Advisory	BUF	Cattaraugus, Chautauqua	3 hr
May 10, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	47 min
May 10, 6:30 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	45 min
May 10, 7:34 PM EDT	Special Marine Warning	BUF		41 min
May 10, 7:38 PM EDT	Special Weather Statement	BUF	Oswego	67 min
May 10, 7:49 PM EDT	Special Weather Statement	BUF	Erie, Wyoming	56 min

Nearby

Severe Thunderstorm Warnings in New York, 2013 Every severe thunderstorm warning in 2013

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.