Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 55, NWS Buffalo, NY

July 3, 2013Monroe County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 3, 2013, 4:52 PM EDT for Monroe County, Wayne County, New York. It was in force for 38 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 3, 2013, 4:52 PM EDT (20:52 UTC)
Expired
Jul 3, 2013, 5:30 PM EDT
In force
38 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Monroe County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 119 km from the middle of the area, began a volume at 20:52 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.

What was reported inside it

TimeReportWhereRemark
Jul 3, 5:05 PM EDTTSTM WND DMGFairport, NYLARGE TREE DOWN...REPORTED BY YNN.
Jul 3, 5:26 PM EDTTSTM WND DMGFairport, NYMULTIPLE REPORTS OF WIRES DOWN.
Jul 3, 5:26 PM EDTTSTM WND DMGRochester, NYMULTIPLE REPORTS OF WIRES DOWN.
Jul 3, 5:28 PM EDTTSTM WND DMGPittsford, NYMULTIPLE REPORTS OF WIRES DOWN.
Jul 3, 5:40 PM EDTHAIL 0.88Brighton, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.9 hours before the alert went out and 117 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 2013-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1393 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 2013-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1393 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

151 
WUUS51 KBUF 032052
SVRBUF
NYC055-117-032130-
/O.NEW.KBUF.SV.W.0055.130703T2052Z-130703T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
452 PM EDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL MONROE COUNTY IN WESTERN NEW YORK
  SOUTHWESTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 530 PM EDT

* AT 447 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
  BRIGHTON...AND MOVING EAST AT 20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  EAST ROCHESTER...
  FAIRPORT...
  PALMYRA...

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 4323 7706 4304 7706 4303 7764 4319 7764
TIME...MOT...LOC 2052Z 269DEG 18KT 4309 7754

$$

JJR
1 follow-up statement
794 
WWUS51 KBUF 032113
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
513 PM EDT WED JUL 3 2013

NYC055-117-032130-
/O.CON.KBUF.SV.W.0055.000000T0000Z-130703T2130Z/
WAYNE NY-MONROE NY-
513 PM EDT WED JUL 3 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT 
FOR EASTERN MONROE AND WESTERN WAYNE COUNTIES...

AT 509 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 FAIRPORT...MOVING EAST AT 20 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  MACEDON...
  PALMYRA...

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 4320 7753 4323 7707 4304 7706 4303 7753
TIME...MOT...LOC 2113Z 269DEG 18KT 4309 7737

$$

JJR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 4:23 PM EDTSpecial Weather StatementBUFMonroe52 min
Jul 3, 5:05 PM EDTAreal Flood AdvisoryBUFGenesee, Orleans3 hr
Jul 3, 5:29 PM EDTSevere Thunderstorm WarningBUFOntario, Wayne61 min
Jul 3, 5:30 PM EDTSevere Thunderstorm WarningBUFOrleans45 min
Jul 3, 5:42 PM EDTSpecial Marine WarningBUF63 min
Jul 3, 5:46 PM EDTAreal Flood AdvisoryBUFMonroe3 hr
Jul 3, 5:58 PM EDTAreal Flood AdvisoryBUFWayne3 hr
Jul 3, 6:29 PM EDTSevere Thunderstorm WarningBUFCayuga, Wayne61 min
Jul 3, 7:53 PM EDTAreal Flood WarningBUFMonroe6 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.