Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 36, NWS Buffalo, NY

June 8, 2011Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 8, 2011, 4:42 PM EDT for Jefferson County, New York. It was in force for 63 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
Jun 8, 2011, 4:42 PM EDT (20:42 UTC)
Expired
Jun 8, 2011, 5:45 PM EDT
In force
63 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 53 km from the middle of the area, began a volume at 20:43 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
Jun 8, 5:28 PM EDTTSTM WND DMGWatertown, NYTREES AND WIRES 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
Jun 8, 4:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.7 hours before the alert went out and 243 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, Albany, NY at 12:00Z on 2011-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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, Albany, NY at 12:00Z on 2011-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 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
344 J/kg
Mixed-layer CIN
-215 J/kg
Mixed-layer LCL
880 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
127 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.

497 
WUUS51 KBUF 082042
SVRBUF
NYC045-082145-
/O.NEW.KBUF.SV.W.0036.110608T2042Z-110608T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
442 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 545 PM EDT

* AT 438 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 30 MILES NORTH OF CLAYTON TO 45 MILES NORTH OF FORT DRUM...   
  AND MOVING SOUTHEAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  CLAYTON...
  CALCIUM...
  LAFARGEVILLE...
  DEPAUVILLE...
  THERESA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. 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 4422 7545 4384 7589 4403 7625 4404 7624
      4404 7620 4401 7618 4402 7615 4403 7618
      4406 7616 4404 7627 4410 7638 4414 7632
      4420 7629 4419 7624 4424 7612 4426 7617
      4430 7614 4440 7585
TIME...MOT...LOC 2041Z 306DEG 44KT 4464 7602 4426 7653

$$

HITCHCOCK
3 follow-up statements
822 
WWUS51 KBUF 082103
SVSBUF

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

NYC045-082145-
/O.CON.KBUF.SV.W.0036.000000T0000Z-110608T2145Z/
JEFFERSON NY-
503 PM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR NORTHERN JEFFERSON COUNTY...

AT 500 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 6 MILES NORTHEAST OF ALEXANDRIA BAY TO DEPAUVILLE... 
MOVING SOUTHEAST AT 60 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  THERESA...
  PHILADELPHIA...
  DEFERIET...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4422 7545 4402 7568 4415 7627 4419 7624
      4424 7612 4426 7617 4430 7614 4440 7585
TIME...MOT...LOC 2103Z 310DEG 51KT 4435 7576 4408 7612

$$

HITCHCOCK
858 
WWUS51 KBUF 082133
SVSBUF

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

NYC045-082145-
/O.CON.KBUF.SV.W.0036.000000T0000Z-110608T2145Z/
JEFFERSON NY-
533 PM EDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR EAST CENTRAL JEFFERSON COUNTY...

AT 530 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE 
LOCATED ALONG A LINE EXTENDING FROM 19 MILES NORTHEAST OF FORT DRUM 
TO WATERTOWN...MOVING SOUTHEAST AT 60 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
WEDNESDAY EVENING FOR CENTRAL NEW YORK.

&&

LAT...LON 4412 7607 4422 7583 4428 7559 4422 7545
      4402 7568
TIME...MOT...LOC 2133Z 304DEG 53KT 4413 7535 4394 7578

$$

RSH
406 
WWUS51 KBUF 082143
SVSBUF

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

NYC045-082153-
/O.EXP.KBUF.SV.W.0036.000000T0000Z-110608T2145Z/
JEFFERSON NY-
543 PM EDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL JEFFERSON COUNTY
WILL EXPIRE AT 545 PM EDT...

AT 543 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

RADAR INDICATED THAT HEAVY RAIN...AND GUSTY WINDS WERE STILL 
POSSIBLE FROM ADDITIONAL SHOWERS AND THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
WEDNESDAY EVENING FOR CENTRAL NEW YORK.

LAT...LON 4412 7607 4422 7583 4428 7559 4422 7545
      4402 7568
TIME...MOT...LOC 2143Z 304DEG 53KT 4405 7518 4386 7561

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 2:00 AM EDTSpecial Marine WarningBUF64 min
Jun 8, 2:29 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie61 min
Jun 8, 3:22 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua68 min
Jun 8, 4:26 PM EDTSpecial Marine WarningBUF51 min
Jun 8, 4:29 PM EDTSpecial Marine WarningBUF69 min
Jun 8, 5:00 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis46 min
Jun 8, 5:15 PM EDTSpecial Weather StatementBUFLewis60 min
Jun 8, 5:39 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis26 min
Jun 8, 7:44 PM EDTSpecial Marine WarningBUF72 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.