Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 14, NWS Buffalo, NY

May 3, 2012Cayuga County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 3, 2012, 11:42 PM EDT for Cayuga County, Wayne County, New York. It was in force for 29 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 3, 2012, 11:42 PM EDT (03:42 UTC)
Expired
May 4, 2012, 12:11 AM EDT
In force
29 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 103 km from the middle of the area, began a volume at 03:47 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 00:00Z, 3.7 hours before the alert went out and 172 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 00:00Z on 2012-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 842 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 00:00Z on 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
842 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1453 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

982 
WUUS51 KBUF 040342
SVRBUF
NYC011-117-040445-
/O.NEW.KBUF.SV.W.0014.120504T0342Z-120504T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1142 PM EDT THU MAY 3 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CAYUGA COUNTY IN CENTRAL NEW YORK
  SOUTHEASTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 1245 AM EDT

* AT 1141 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 10
  MILES WEST OF WEEDSPORT...OR NEAR MONTEZUMA...AND MOVING EAST AT 30
  MPH.

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

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 4310 7649 4303 7649 4301 7687 4316 7687
      4323 7668 4326 7649 4310 7647
TIME...MOT...LOC 0342Z 258DEG 28KT 4305 7675

$$

HITCHCOCK
2 follow-up statements
578 
WWUS51 KBUF 040358
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1158 PM EDT THU MAY 3 2012

NYC117-040408-
/O.CAN.KBUF.SV.W.0014.000000T0000Z-120504T0445Z/
WAYNE NY-
1158 PM EDT THU MAY 3 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAYNE COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORMS WHICH PROMTED THE WARNING HAVE MOVED EAST 
OF THE COUNTY.

LAT...LON 4310 7649 4303 7649 4303 7667 4323 7668
      4326 7649 4325 7649 4310 7647
TIME...MOT...LOC 0358Z 258DEG 28KT 4307 7658

$$

NYC011-040445-
/O.CON.KBUF.SV.W.0014.000000T0000Z-120504T0445Z/
CAYUGA NY-
1158 PM EDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR NORTH CENTRAL CAYUGA COUNTY...

AT 1154 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 PORT BYRON...OR 6 MILES NORTHEAST OF MONTEZUMA...MOVING
EAST AT 30 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  WEEDSPORT...
  CROSS LAKE...

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 4310 7649 4303 7649 4303 7667 4323 7668
      4326 7649 4325 7649 4310 7647
TIME...MOT...LOC 0358Z 258DEG 28KT 4307 7658

$$

HITCHCOCK
813 
WWUS51 KBUF 040411
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1211 AM EDT FRI MAY 4 2012

NYC011-040421-
/O.CAN.KBUF.SV.W.0014.000000T0000Z-120504T0445Z/
CAYUGA NY-
1211 AM EDT FRI MAY 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CAYUGA COUNTY IS
CANCELLED...

AT 1211 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN CANCELLED.

LAT...LON 4310 7649 4303 7649 4303 7667 4323 7668
      4326 7649 4325 7649 4310 7647
TIME...MOT...LOC 0411Z 258DEG 28KT 4309 7644

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 10:40 PM EDTSpecial Marine WarningBUF80 min
May 3, 10:43 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne62 min
May 3, 11:22 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario37 min
May 3, 11:40 PM EDTSpecial Weather StatementBUFJefferson, Oswego65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.