Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 7, NWS Buffalo, NY

May 14, 20145 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 14, 2014, 5:44 PM EDT for 5 counties in New York. It was in force for 61 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, 5:44 PM EDT (21:44 UTC)
Expired
May 14, 2014, 6:45 PM EDT
In force
61 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Monroe County, NY, Niagara County, NY, Orleans County, NY

The radar

The Buffalo radar (KBUF), 55 km from the middle of the area, began a volume at 21:45 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 54 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.

539 
WUUS51 KBUF 142144
SVRBUF
NYC029-037-055-063-073-142245-
/O.NEW.KBUF.SV.W.0007.140514T2144Z-140514T2245Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ERIE COUNTY IN WESTERN NEW YORK
  NORTHWESTERN GENESEE COUNTY IN WESTERN NEW YORK
  NORTHWESTERN MONROE COUNTY IN WESTERN NEW YORK
  SOUTHEASTERN NIAGARA COUNTY IN WESTERN NEW YORK
  ORLEANS COUNTY IN WESTERN NEW YORK

* UNTIL 645 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
  AKRON...OR 11 MILES SOUTH OF MEDINA...AND MOVING NORTHEAST AT 15
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  MEDINA...
  ALBION...

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 4338 7841 4338 7801 4337 7791 4332 7780
      4296 7840 4309 7860
TIME...MOT...LOC 2143Z 222DEG 15KT 4308 7844

$$

JJR
2 follow-up statements
616 
WWUS51 KBUF 142217
SVSBUF

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

NYC029-037-063-142227-
/O.CAN.KBUF.SV.W.0007.000000T0000Z-140514T2245Z/
GENESEE NY-NIAGARA NY-ERIE NY-
617 PM EDT WED MAY 14 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ERIE...
SOUTHEASTERN NIAGARA AND NORTHWESTERN GENESEE COUNTIES IS
CANCELLED...

LAT...LON 4314 7811 4313 7838 4318 7839 4338 7829
      4338 7801 4337 7791 4332 7780
TIME...MOT...LOC 2217Z 224DEG 18KT 4320 7829

$$

NYC055-073-142245-
/O.CON.KBUF.SV.W.0007.000000T0000Z-140514T2245Z/
ORLEANS NY-MONROE NY-
617 PM EDT WED MAY 14 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHWESTERN MONROE AND ORLEANS COUNTIES...

AT 615 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 7 MILES SOUTHWEST OF ALBION...OR NEAR MEDINA...MOVING
NORTHEAST AT 20 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  ALBION...

LAT...LON 4314 7811 4313 7838 4318 7839 4338 7829
      4338 7801 4337 7791 4332 7780
TIME...MOT...LOC 2217Z 224DEG 18KT 4320 7829

$$

JJR
405 
WWUS51 KBUF 142232
SVSBUF

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

NYC055-073-142241-
/O.CAN.KBUF.SV.W.0007.000000T0000Z-140514T2245Z/
ORLEANS NY-MONROE NY-
632 PM EDT WED MAY 14 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MONROE AND
ORLEANS COUNTIES IS CANCELLED...

AT 631 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.

LAT...LON 4314 7811 4313 7838 4318 7839 4338 7829
      4338 7801 4337 7791 4332 7780
TIME...MOT...LOC 2231Z 224DEG 18KT 4325 7822

$$

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, 6:09 PM EDTAreal Flood AdvisoryBUFErie, Genesee, Niagara, Orleans4 hr
May 14, 6:40 PM EDTSpecial Marine WarningBUF95 min
May 14, 6:49 PM EDTSevere Thunderstorm WarningBUFNiagara56 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.