Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 85, NWS Buffalo, NY

September 14, 2012Cayuga County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 14, 2012, 5:40 PM EDT for Cayuga County, Ontario County, Wayne County, New York. It was in force for 50 min. 1 report 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
Sep 14, 2012, 5:40 PM EDT (21:40 UTC)
Expired
Sep 14, 2012, 6:30 PM EDT
In force
50 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Ontario County, NY, Wayne County, NY

The radar

The Binghamton radar (KBGM), 114 km from the middle of the area, began a volume at 21:40 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
Sep 14, 5:53 PM EDTTSTM WND DMG1 Se Butler Center, NYMULTIPLE REPORTS OF TREES DOWN.

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, 9.7 hours before the alert went out and 140 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 2012-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 86 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 2012-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
86 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
82 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.

852 
WUUS51 KBUF 142140
SVRBUF
NYC011-069-117-142230-
/O.NEW.KBUF.SV.W.0085.120914T2140Z-120914T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
540 PM EDT FRI SEP 14 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL CAYUGA COUNTY IN CENTRAL NEW YORK
  NORTHEASTERN ONTARIO COUNTY IN WESTERN NEW YORK
  SOUTHEASTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 630 PM EDT

* AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTH OF CLIFTON
  SPRINGS...OR 7 MILES SOUTHEAST OF CANANDAIGUA...AND MOVING EAST AT
  40 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  GENEVA...
  WEEDSPORT...

LAT...LON 4276 7724 4305 7730 4320 7662 4303 7653
      4301 7696 4287 7695 4286 7697 4276 7697
TIME...MOT...LOC 2140Z 251DEG 36KT 4284 7714

$$

APFFEL
2 follow-up statements
974 
WWUS51 KBUF 142157
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
557 PM EDT FRI SEP 14 2012

NYC011-069-117-142230-
/O.CON.KBUF.SV.W.0085.000000T0000Z-120914T2230Z/
ONTARIO NY-WAYNE NY-CAYUGA NY-
557 PM EDT FRI SEP 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR WEST CENTRAL CAYUGA...SOUTHEASTERN WAYNE AND NORTHEASTERN ONTARIO
COUNTIES...

AT 552 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 GENEVA...MOVING EAST
AT 35 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  PORT BYRON...

LAT...LON 4276 7719 4292 7719 4308 7705 4320 7662
      4303 7653 4301 7696 4287 7695 4286 7697
      4276 7697
TIME...MOT...LOC 2156Z 251DEG 32KT 4288 7699

$$

APFFEL
302 
WWUS51 KBUF 142222
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
622 PM EDT FRI SEP 14 2012

NYC011-069-117-142231-
/O.EXP.KBUF.SV.W.0085.000000T0000Z-120914T2230Z/
ONTARIO NY-WAYNE NY-CAYUGA NY-
622 PM EDT FRI SEP 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CAYUGA...
SOUTHEASTERN WAYNE AND NORTHEASTERN ONTARIO COUNTIES WILL EXPIRE AT
630 PM EDT...

AT 621 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING WILL CONTINUE TO MOVE EAST 
AND EXIT THE AREA AROUND 630 PM. THE WARNING WILL BE ALLOWED TO 
EXPIRE.

LAT...LON 4276 7719 4292 7719 4308 7705 4320 7662
      4303 7653 4301 7696 4287 7695 4286 7697
      4276 7697
TIME...MOT...LOC 2221Z 251DEG 32KT 4295 7670

$$

APFFEL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 3:41 PM EDTSpecial Marine WarningBUF49 min
Sep 14, 4:20 PM EDTSpecial Weather StatementBUFJefferson40 min
Sep 14, 4:57 PM EDTSpecial Marine WarningBUF93 min
Sep 14, 5:05 PM EDTSpecial Weather StatementBUFOntario55 min
Sep 14, 6:06 PM EDTSpecial Weather StatementBUFOswego54 min
Sep 14, 7:10 PM EDTSpecial Weather StatementBUFLewis65 min

Nearby

Severe Thunderstorm Warnings in New York, 2012Every severe thunderstorm warning in 2012

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.