Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 39, NWS Buffalo, NY

June 8, 2011Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2011, 8:53 PM EDT for Jefferson County, New York. It was in force for 52 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
Jun 8, 2011, 8:53 PM EDT (00:53 UTC)
Expired
Jun 8, 2011, 9:45 PM EDT
In force
52 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 61 km from the middle of the area, began a volume at 00:54 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 8, 4:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.9 hours before the alert went out and 215 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 2011-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1674 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 00:00Z on 2011-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
1674 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1692 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
133 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.

977 
WUUS51 KBUF 090053
SVRBUF
NYC045-090145-
/O.NEW.KBUF.SV.W.0039.110609T0053Z-110609T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
853 PM EDT WED JUN 8 2011

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN CENTRAL NEW YORK

* UNTIL 945 PM EDT

* AT 848 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 16 MILES NORTHWEST OF CLAYTON TO 20 MILES WEST OF   
  STONY POINT...AND MOVING EAST AT 75 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  STONY POINT...
  SOUTHWICK BEACH...
  WATERTOWN...
  ADAMS...
  SACKETS HARBOR...
  CAPE VINCENT...
  CLAYTON...
  ALEXANDRIA BAY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WINDS...AND DEADLY CLOUD TO GROUND 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4430 7562 4370 7592 4371 7622 4380 7624
      4391 7636 4388 7645 4393 7641 4388 7629
      4391 7622 4390 7614 4398 7622 4396 7630
      4405 7631 4410 7638 4420 7629 4419 7624
      4424 7612 4426 7617 4430 7614 4441 7585
TIME...MOT...LOC 0052Z 287DEG 65KT 4431 7628 4380 7660

$$

HITCHCOCK
2 follow-up statements
104 
WWUS51 KBUF 090119
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
919 PM EDT WED JUN 8 2011

NYC045-090145-
/O.CON.KBUF.SV.W.0039.000000T0000Z-110609T0145Z/
JEFFERSON NY-
919 PM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR JEFFERSON COUNTY...

AT 915 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 9 MILES NORTHEAST OF PHILADELPHIA TO 
MANNSVILLE...MOVING EAST AT 75 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  FORT DRUM...
  PHILADELPHIA...
  THERESA...
  ADAMS...
  MANNSVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WINDS...AND DEADLY CLOUD TO GROUND 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4430 7562 4370 7592 4371 7622 4388 7629
      4391 7620 4390 7620 4387 7621 4392 7614
      4398 7622 4397 7630 4404 7623 4403 7619
      4401 7619 4402 7617 4406 7616 4405 7621
      4440 7584
TIME...MOT...LOC 0119Z 287DEG 65KT 4425 7553 4368 7596

$$

HITCHCOCK
537 
WWUS51 KBUF 090142
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
942 PM EDT WED JUN 8 2011

NYC045-090152-
/O.EXP.KBUF.SV.W.0039.000000T0000Z-110609T0145Z/
JEFFERSON NY-
942 PM EDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY WILL EXPIRE
AT 945 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 100 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4430 7562 4370 7592 4371 7622 4388 7629
      4391 7620 4390 7620 4387 7621 4392 7614
      4398 7622 4397 7630 4404 7623 4403 7619
      4401 7619 4402 7617 4406 7616 4405 7621
      4440 7584
TIME...MOT...LOC 0142Z 287DEG 65KT 4412 7498 4355 7542

$$

ZAFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 8:39 PM EDTSpecial Marine WarningBUF64 min
Jun 8, 8:43 PM EDTSpecial Marine WarningBUF62 min
Jun 8, 9:13 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis62 min
Jun 8, 9:32 PM EDTSevere Thunderstorm WarningBUFLewis, Oswego43 min
Jun 8, 10:10 PM EDTSevere Thunderstorm WarningBUFWayne17 min
Jun 8, 10:52 PM EDTSevere Thunderstorm WarningBUFOntario25 min
Jun 9, 3:59 PM EDTSpecial Marine WarningBUF61 min

Nearby

Severe Thunderstorm Warnings in New York, 2011Every severe thunderstorm warning in 2011

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.