Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 11, NWS Buffalo, NY

May 10, 2013Allegany County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 10, 2013, 6:28 PM EDT for Allegany County, New York. It was in force for 47 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, 6:28 PM EDT (22:28 UTC)
Expired
May 10, 2013, 7:15 PM EDT
In force
47 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 91 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 88 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2013-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2013-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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.

088 
WUUS51 KBUF 102228
SVRBUF
NYC003-102315-
/O.NEW.KBUF.SV.W.0011.130510T2228Z-130510T2315Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ALLEGANY COUNTY IN WESTERN NEW YORK

* UNTIL 715 PM EDT

* AT 625 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 8 MILES
  SOUTHWEST OF FRIENDSHIP...OR 9 MILES NORTHEAST OF OLEAN...AND
  MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  FRIENDSHIP...
  BELMONT...
  ANGELICA...
  BIRDSALL...

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 4249 7792 4230 7774 4211 7830 4217 7830
TIME...MOT...LOC 2228Z 237DEG 32KT 4217 7825

$$

RSH
2 follow-up statements
637 
WWUS51 KBUF 102257
SVSBUF

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

NYC003-102315-
/O.CON.KBUF.SV.W.0011.000000T0000Z-130510T2315Z/
ALLEGANY NY-
657 PM EDT FRI MAY 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CENTRAL ALLEGANY COUNTY...

AT 653 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 ANGELICA...OR 12 MILES NORTH OF WELLSVILLE...MOVING
NORTHEAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  BIRDSALL...

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 4243 7788 4230 7774 4220 7805 4234 7802
TIME...MOT...LOC 2257Z 237DEG 32KT 4231 7796

$$

JJR
079 
WWUS51 KBUF 102313
SVSBUF

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

NYC003-102323-
/O.EXP.KBUF.SV.W.0011.000000T0000Z-130510T2315Z/
ALLEGANY NY-
713 PM EDT FRI MAY 10 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ALLEGANY COUNTY WILL
EXPIRE AT 715 PM EDT...

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

LAT...LON 4243 7788 4230 7774 4220 7805 4234 7802
TIME...MOT...LOC 2313Z 237DEG 32KT 4239 7780

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 2:48 PM EDTSpecial Weather StatementBUFCattaraugus42 min
May 10, 3:47 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus43 min
May 10, 4:06 PM EDTSpecial Marine WarningBUF54 min
May 10, 4:21 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Orleans, Wyoming54 min
May 10, 4:22 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua38 min
May 10, 4:27 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Wyoming63 min
May 10, 4:33 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie57 min
May 10, 4:39 PM EDTTornado WarningBUFChautauqua36 min
May 10, 4:52 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus53 min
May 10, 5:06 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans24 min
May 10, 5:29 PM EDTSevere Thunderstorm WarningBUFCattaraugus46 min
May 10, 5:34 PM EDTSpecial Marine WarningBUF26 min
May 10, 5:35 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario55 min
May 10, 5:51 PM EDTSpecial Marine WarningBUF54 min
May 10, 6:02 PM EDTSevere Thunderstorm WarningBUFCattaraugus28 min
May 10, 6:08 PM EDTAreal Flood AdvisoryBUFErie, Genesee, Niagara, Orleans3 hr
May 10, 6:21 PM EDTAreal Flood AdvisoryBUFCattaraugus, Chautauqua3 hr
May 10, 6:30 PM EDTSevere Thunderstorm WarningBUFCattaraugus45 min
May 10, 7:34 PM EDTSpecial Marine WarningBUF41 min
May 10, 7:38 PM EDTSpecial Weather StatementBUFOswego67 min
May 10, 7:49 PM EDTSpecial Weather StatementBUFErie, Wyoming56 min

Nearby

Severe Thunderstorm Warnings in New York, 2013Every 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.