Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 8, NWS Buffalo, NY

May 14, 2014Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 14, 2014, 6:49 PM EDT for Niagara County, New York. It was in force for 56 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 14, 2014, 6:49 PM EDT (22:49 UTC)
Expired
May 14, 2014, 7:45 PM EDT
In force
56 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Niagara County, NY

The radar

The Buffalo radar (KBUF), 34 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 37 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 2014-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 2014-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
56 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
11 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.

893 
WUUS51 KBUF 142249
SVRBUF
NYC063-142345-
/O.NEW.KBUF.SV.W.0008.140514T2249Z-140514T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
649 PM EDT WED MAY 14 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN NIAGARA COUNTY IN WESTERN NEW YORK

* UNTIL 745 PM EDT

* AT 645 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE          
  EXTENDING FROM 21 MILES WEST OF NIAGARA FALLS TO PORT              
  COLBORNE...AND MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  NIAGARA FALLS...
  YOUNGSTOWN...
  SANBORN...
  NEWFANE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. 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 4312 7907 4313 7906 4325 7906 4326 7908
      4327 7907 4329 7894 4333 7883 4337 7857
      4331 7856 4306 7893 4307 7908
TIME...MOT...LOC 2249Z 226DEG 30KT 4320 7938 4311 7928
          4303 7921 4288 7916

$$

JJR
2 follow-up statements
779 
WWUS51 KBUF 142323
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
723 PM EDT WED MAY 14 2014

NYC063-142345-
/O.CON.KBUF.SV.W.0008.000000T0000Z-140514T2345Z/
NIAGARA NY-
723 PM EDT WED MAY 14 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR WESTERN NIAGARA COUNTY...

AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM 10 MILES NORTHWEST OF YOUNGSTOWN TO RANSOMVILLE TO 
SANBORN...MOVING NORTHEAST AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  WILSON...
  NEWFANE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4312 7907 4313 7906 4325 7906 4326 7908
      4327 7907 4329 7894 4333 7883 4337 7857
      4331 7856 4306 7893 4307 7908
TIME...MOT...LOC 2323Z 226DEG 30KT 4340 7910 4331 7900
          4323 7893 4308 7888

$$

JJR
123 
WWUS51 KBUF 142345
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
745 PM EDT WED MAY 14 2014

NYC063-142354-
/O.EXP.KBUF.SV.W.0008.000000T0000Z-140514T2345Z/
NIAGARA NY-
745 PM EDT WED MAY 14 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN NIAGARA COUNTY WILL
EXPIRE AT 745 PM EDT...

AT 744 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE LINE OF 
SEVERE THUNDERSTORMS THAT PROMPTED THE WARNING HAD WEAKENED AND WAS 
NO LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

RADAR INDICATED THAT HEAVY RAIN AND GUSTY WINDS WERE STILL POSSIBLE 
FROM THE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4312 7907 4313 7906 4325 7906 4326 7908
      4327 7907 4329 7894 4333 7883 4337 7857
      4331 7856 4306 7893 4307 7908
TIME...MOT...LOC 2344Z 226DEG 30KT 4352 7893 4343 7883
          4335 7876 4320 7871

$$

JJR

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 8:51 PM EDTSevere Thunderstorm WarningBUFOntario, Wayne39 min
May 13, 9:32 PM EDTFlash Flood WarningBUFCayuga, Livingston, Ontario, Wayne5 hr
May 13, 9:50 PM EDTSevere Thunderstorm WarningBUFOswego40 min
May 14, 1:54 AM EDTAreal Flood AdvisoryBUFCattaraugus, Chautauqua, Erie4 hr
May 14, 3:11 AM EDTSpecial Weather StatementBUFAllegany, Livingston, Wyoming64 min
May 14, 10:33 AM EDTFlash Flood WatchBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 7 more18 hr
May 14, 4:46 PM EDTSevere Thunderstorm WarningBUFErie, Niagara, Orleans59 min
May 14, 5:44 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Monroe, Niagara, Orleans61 min
May 14, 6:09 PM EDTAreal Flood AdvisoryBUFErie, Genesee, Niagara, Orleans4 hr
May 14, 6:40 PM EDTSpecial Marine WarningBUF95 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.