Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 55, NWS Buffalo, NY

August 5, 2012Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 5, 2012, 1:24 PM EDT for Erie County, New York. It was in force for 51 min. 3 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
Aug 5, 2012, 1:24 PM EDT (17:24 UTC)
Expired
Aug 5, 2012, 2:15 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Erie County, NY

The radar

The Buffalo radar (KBUF), 22 km from the middle of the area, began a volume at 17:25 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
Aug 5, 1:35 PM EDTTSTM WND DMGHamburg, NYTREE LIMBS AND POWER LINES DOWN
Aug 5, 1:38 PM EDTTSTM WND DMG1 S Windom, NYREPORT OF A TREE ON A TRUCK
Aug 5, 1:50 PM EDTTSTM WND DMGEast Aurora, NYTREE LIMBS AND POWER LINES DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 5, 12:42 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.4 hours before the alert went out and 20 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 2012-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 128 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
128 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

065 
WUUS51 KBUF 051724
SVRBUF
NYC029-051815-
/O.NEW.KBUF.SV.W.0055.120805T1724Z-120805T1815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
124 PM EDT SUN AUG 5 2012

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ERIE COUNTY IN WESTERN NEW YORK

* UNTIL 215 PM EDT

* AT 120 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 11 MILES WEST OF ATHOL SPRINGS TO 7 MILES SOUTHWEST OF NORTH  
  COLLINS...AND MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  NORTH COLLINS...
  ATHOL SPRINGS...
  WEST SENECA...
  ORCHARD PARK...
  EAST AURORA...  
  LANCASTER...
  ELMA...
  WALES CENTER...
  ALDEN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4253 7894 4273 7897 4274 7892 4279 7886
      4281 7888 4287 7888 4295 7847 4287 7847
      4286 7849 4278 7849 4278 7846 4254 7847
TIME...MOT...LOC 1723Z 259DEG 43KT 4279 7905 4256 7902

$$

ZAFF
2 follow-up statements
066 
WWUS51 KBUF 051801
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
201 PM EDT SUN AUG 5 2012

NYC029-051815-
/O.CON.KBUF.SV.W.0055.000000T0000Z-120805T1815Z/
ERIE NY-
201 PM EDT SUN AUG 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR EAST CENTRAL ERIE COUNTY...

AT 157 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 MARILLA TO 9 MILES SOUTH OF WALES CENTER...MOVING 
EAST AT 50 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

&&

LAT...LON 4291 7866 4295 7847 4287 7847 4285 7849
      4278 7849 4278 7846 4267 7847 4266 7865
TIME...MOT...LOC 1801Z 259DEG 43KT 4287 7844 4264 7841

$$

ZAFF
056 
WWUS51 KBUF 051813
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
213 PM EDT SUN AUG 5 2012

NYC029-051823-
/O.EXP.KBUF.SV.W.0055.000000T0000Z-120805T1815Z/
ERIE NY-
213 PM EDT SUN AUG 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ERIE COUNTY WILL
EXPIRE AT 215 PM EDT...

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4291 7866 4295 7847 4287 7847 4285 7849
      4278 7849 4278 7846 4267 7847 4266 7865
TIME...MOT...LOC 1813Z 259DEG 43KT 4289 7825 4266 7822

$$

ZAFF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 11:53 AM EDTSpecial Marine WarningBUF2 hr
Aug 5, 12:55 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie50 min
Aug 5, 1:36 PM EDTSevere Thunderstorm WarningBUFErie39 min
Aug 5, 1:56 PM EDTSevere Thunderstorm WarningBUFMonroe49 min
Aug 5, 2:12 PM EDTSevere Thunderstorm WarningBUFGenesee28 min
Aug 5, 2:27 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Wyoming33 min
Aug 5, 2:34 PM EDTSpecial Marine WarningBUF56 min
Aug 5, 2:40 PM EDTSevere Thunderstorm WarningBUFWayne50 min
Aug 5, 2:44 PM EDTSevere Thunderstorm WarningBUFMonroe21 min
Aug 5, 2:54 PM EDTSpecial Marine WarningBUF96 min
Aug 5, 2:57 PM EDTSevere Thunderstorm WarningBUFMonroe, Ontario33 min
Aug 5, 3:11 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego64 min
Aug 5, 3:42 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego63 min
Aug 5, 3:49 PM EDTSevere Thunderstorm WarningBUFJefferson26 min
Aug 5, 3:57 PM EDTFlash Flood WarningBUFJefferson111 min
Aug 5, 4:11 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis49 min
Aug 5, 4:13 PM EDTSevere Thunderstorm WarningBUFOswego32 min
Aug 5, 4:32 PM EDTAreal Flood AdvisoryBUFJefferson77 min
Aug 5, 7:04 PM EDTSpecial Weather StatementBUFMonroe56 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.