Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 16, NWS Buffalo, NY

June 17, 2014Livingston County, Ontario County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 17, 2014, 2:28 PM EDT for Livingston County, Ontario County, Wyoming County, New York. It was in force for 62 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 17, 2014, 2:28 PM EDT (18:28 UTC)
Expired
Jun 17, 2014, 3:30 PM EDT
In force
62 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Livingston County, NY, Ontario County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 101 km from the middle of the area, began a volume at 18:27 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, 6.5 hours before the alert went out and 98 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 2014-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 128 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 2014-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
128 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1154 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

580 
WUUS51 KBUF 171828
SVRBUF
NYC051-069-121-171930-
/O.NEW.KBUF.SV.W.0016.140617T1828Z-140617T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
228 PM EDT TUE JUN 17 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

THIS ALSO INCLUDES INTERSTATE 390 BETWEEN EXITS 6 AND 7.

* UNTIL 330 PM EDT

* AT 225 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 SOUTHWEST OF GENESEO...AND MOVING EAST AT
  35 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4271 7800 4297 7719 4276 7701 4276 7731
      4273 7734 4263 7736 4259 7802
TIME...MOT...LOC 1828Z 257DEG 32KT 4269 7783

$$

RSH
2 follow-up statements
692 
WWUS51 KBUF 171901
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
301 PM EDT TUE JUN 17 2014

NYC121-171911-
/O.CAN.KBUF.SV.W.0016.000000T0000Z-140617T1930Z/
WYOMING NY-
301 PM EDT TUE JUN 17 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WYOMING COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4270 7770 4276 7731 4273 7734 4263 7736
      4261 7771
TIME...MOT...LOC 1901Z 266DEG 28KT 4263 7755

$$

NYC051-069-171930-
/O.CON.KBUF.SV.W.0016.000000T0000Z-140617T1930Z/
LIVINGSTON NY-ONTARIO NY-
301 PM EDT TUE JUN 17 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHWESTERN ONTARIO AND EAST CENTRAL LIVINGSTON COUNTIES...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR SPRINGWATER...OR NEAR
DANSVILLE...MOVING EAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  RURAL LIVINGSTON COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4270 7770 4276 7731 4273 7734 4263 7736
      4261 7771
TIME...MOT...LOC 1901Z 266DEG 28KT 4263 7755

$$

RSH
082 
WWUS51 KBUF 171926
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
326 PM EDT TUE JUN 17 2014

NYC051-069-171936-
/O.EXP.KBUF.SV.W.0016.000000T0000Z-140617T1930Z/
LIVINGSTON NY-ONTARIO NY-
326 PM EDT TUE JUN 17 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ONTARIO AND EAST
CENTRAL LIVINGSTON COUNTIES WILL EXPIRE AT 330 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4270 7770 4276 7731 4273 7734 4263 7736
      4261 7771
TIME...MOT...LOC 1926Z 266DEG 28KT 4264 7729

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 2:15 PM EDTSpecial Weather StatementBUFMonroe60 min
Jun 17, 2:20 PM EDTSpecial Weather StatementBUFLivingston55 min
Jun 17, 2:40 PM EDTSevere Thunderstorm WarningBUFMonroe, Ontario, Wayne65 min
Jun 17, 2:41 PM EDTSpecial Marine WarningBUF64 min
Jun 17, 3:15 PM EDTSpecial Marine WarningBUF45 min
Jun 17, 3:58 PM EDTSpecial Marine WarningBUF62 min
Jun 17, 6:28 PM EDTSpecial Marine WarningBUF92 min
Jun 17, 6:33 PM EDTSpecial Marine WarningBUF57 min
Jun 17, 7:00 PM EDTSpecial Marine WarningBUF60 min
Jun 17, 7:08 PM EDTSevere Thunderstorm WarningBUFMonroe, Niagara, Orleans67 min
Jun 17, 7:27 PM EDTSpecial Marine WarningBUF33 min
Jun 17, 7:29 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis46 min
Jun 17, 7:39 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Monroe, Niagara, Orleans, Wyoming66 min
Jun 17, 7:56 PM EDTSpecial Marine WarningBUF64 min
Jun 17, 7:59 PM EDTSpecial Marine WarningBUF91 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.