Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 28, NWS Buffalo, NY

June 24, 2014Livingston County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 24, 2014, 5:41 PM EDT for Livingston County, Ontario County, New York. It was in force for 49 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 24, 2014, 5:41 PM EDT (21:41 UTC)
Expired
Jun 24, 2014, 6:30 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Livingston County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 83 km from the middle of the area, began a volume at 21:43 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, 9.7 hours before the alert went out and 80 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 2014-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 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 12:00Z on 2014-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.193958Sfc1 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
52 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
99 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.

243 
WUUS51 KBUF 242141
SVRBUF
NYC051-069-242230-
/O.NEW.KBUF.SV.W.0028.140624T2141Z-140624T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
541 PM EDT TUE JUN 24 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LIVINGSTON COUNTY IN WESTERN NEW YORK
  WEST CENTRAL ONTARIO COUNTY IN WESTERN NEW YORK

* UNTIL 630 PM EDT

* AT 540 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
  MOUNT MORRIS...OR 9 MILES SOUTH OF GENESEO...AND MOVING NORTHEAST
  AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  CONESUS...
  HEMLOCK...
  LIMA...

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 4270 7794 4299 7777 4299 7773 4294 7773
      4294 7751 4289 7732 4259 7786
TIME...MOT...LOC 2141Z 225DEG 29KT 4268 7785

$$

THOMAS
2 follow-up statements
680 
WWUS51 KBUF 242156
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
556 PM EDT TUE JUN 24 2014

NYC051-069-242230-
/O.CON.KBUF.SV.W.0028.000000T0000Z-140624T2230Z/
LIVINGSTON NY-ONTARIO NY-
556 PM EDT TUE JUN 24 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR WEST CENTRAL ONTARIO AND NORTHERN LIVINGSTON COUNTIES...

AT 554 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 CONESUS...OR NEAR GENESEO...MOVING NORTHEAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  LIVONIA...
  LIMA...
  EAST BLOOMFIELD...

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 4278 7789 4294 7773 4294 7751 4289 7732
      4267 7773
TIME...MOT...LOC 2156Z 225DEG 29KT 4277 7773

$$

THOMAS
729 
WWUS51 KBUF 242224
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
624 PM EDT TUE JUN 24 2014

NYC051-069-242232-
/O.EXP.KBUF.SV.W.0028.000000T0000Z-140624T2230Z/
LIVINGSTON NY-ONTARIO NY-
624 PM EDT TUE JUN 24 2014

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ONTARIO AND
NORTHERN LIVINGSTON COUNTIES WILL EXPIRE AT 630 PM EDT...

AT 622 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 ALLOWED TO EXPIRE.

LAT...LON 4278 7789 4294 7773 4294 7751 4289 7732
      4267 7773
TIME...MOT...LOC 2222Z 225DEG 29KT 4290 7744

$$

THOMAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 5:56 AM EDTSpecial Weather StatementBUFLivingston, Ontario64 min
Jun 24, 11:32 AM EDTFlash Flood WatchBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more28 hr
Jun 24, 3:58 PM EDTSpecial Weather StatementBUFGenesee62 min
Jun 24, 5:16 PM EDTSevere Thunderstorm WarningBUFCayuga, Ontario, Wayne44 min
Jun 24, 5:51 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne54 min
Jun 24, 6:03 PM EDTSpecial Marine WarningBUF57 min
Jun 24, 6:04 PM EDTSpecial Weather StatementBUFErie, Genesee, Wyoming56 min
Jun 24, 6:33 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego57 min
Jun 24, 6:54 PM EDTSpecial Marine WarningBUF51 min
Jun 24, 7:26 PM EDTSpecial Marine WarningBUF34 min
Jun 24, 7:28 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis62 min
Jun 24, 7:53 PM EDTSpecial Weather StatementBUFChautauqua, Erie52 min
Jun 24, 7:56 PM EDTSpecial Weather StatementBUFNiagara64 min

Nearby

Severe Thunderstorm Warnings in New York, 2014Every severe thunderstorm warning in 2014

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.