Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 41, NWS Buffalo, NY

May 28, 2013Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 28, 2013, 10:10 PM EDT for Chautauqua County, New York. It was in force for 50 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 28, 2013, 10:10 PM EDT (02:10 UTC)
Expired
May 28, 2013, 11:00 PM EDT
In force
50 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 119 km from the middle of the area, began a volume at 02:13 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 00:00Z, 2.2 hours before the alert went out and 119 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 00:00Z on 2013-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2013-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
147 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
758 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
347 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

465 
WUUS51 KBUF 290210
SVRBUF
NYC013-290300-
/O.NEW.KBUF.SV.W.0041.130529T0210Z-130529T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1010 PM EDT TUE MAY 28 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK

THIS ALSO INCLUDES INTERSTATE 86 BETWEEN EXITS 4 AND 12.

* UNTIL 1100 PM EDT

* AT 1009 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
  CLYMER...OR 22 MILES WEST OF JAMESTOWN...AND MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  FREWSBURG...

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.

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 4219 7975 4210 7906 4200 7906 4199 7962
      4199 7972 4200 7977 4210 7978
TIME...MOT...LOC 0210Z 283DEG 34KT 4208 7965

$$

JJR
1 follow-up statement
027 
WWUS51 KBUF 290243
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1043 PM EDT TUE MAY 28 2013

NYC013-290253-
/O.CAN.KBUF.SV.W.0041.000000T0000Z-130529T0300Z/
CHAUTAUQUA NY-
1043 PM EDT TUE MAY 28 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHAUTAUQUA COUNTY IS
CANCELLED...

AT 1043 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.

PLEASE NOTE THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS ARE 
STILL POSSIBLE FROM THIS THUNDERSTORM.

LAT...LON 4219 7975 4210 7906 4200 7906 4199 7962
      4199 7972 4200 7977 4210 7978
TIME...MOT...LOC 0243Z 283DEG 34KT 4201 7924

$$

JJR

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 9:00 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua45 min
May 28, 9:44 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus61 min
May 28, 10:03 PM EDTFlash Flood WarningBUFCattaraugus, Chautauqua4 hr
May 28, 11:28 PM EDTSmall Craft AdvisoryBUF17 hr
May 29, 4:11 PM EDTTornado WarningBUFCayuga, Wayne34 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.