Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 85, NWS Buffalo, NY

June 29, 2008Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 29, 2008, 4:31 PM EDT for Jefferson County, New York. It was in force for 74 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 29, 2008, 4:31 PM EDT (20:31 UTC)
Expired
Jun 29, 2008, 5:45 PM EDT
In force
74 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 47 km from the middle of the area, began a volume at 20:33 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 29, 5:21 PM EDTTSTM WND DMG5 Se Cape Vincent, 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 29, 12:11 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.5 hours before the alert went out and 238 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 2008-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 594 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, Albany, NY at 12:00Z on 2008-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 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
594 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 292032
SVRBUF
NYC045-292145-
/O.NEW.KBUF.SV.W.0085.080629T2031Z-080629T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
431 PM EDT SUN JUN 29 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 545 PM EDT

* AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 25 MILES NORTHWEST OF     
  STONY POINT TO 35 MILES SOUTHWEST OF SOUTHWICK BEACH...AND         
  MOVING NORTHEAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  STONY POINT BY 500 PM EDT...
  HENDERSON HARBOR BY 510 PM EDT...
  SOUTHWICK BEACH BY 515 PM EDT...
  CLAYTON BY 520 PM EDT...
  ADAMS CENTER AND ADAMS BY 530 PM EDT...
  WATERTOWN BY 535 PM EDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4411 7585 4370 7586 4371 7603 4367 7604
      4368 7621 4386 7631 4390 7646 4393 7640
      4387 7621 4390 7615 4399 7607 4395 7629
      4405 7631 4404 7640 4411 7638 4431 7607
      4424 7611 4425 7607 4432 7607 4436 7599
TIME...MOT...LOC 2031Z 238DEG 32KT 4409 7664 4382 7655
          4345 7675

$$

HITCHCOCK
1 follow-up statement
000 
WWUS51 KBUF 292104
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
504 PM EDT SUN JUN 29 2008

NYC045-292145-
/O.CON.KBUF.SV.W.0085.000000T0000Z-080629T2145Z/
JEFFERSON NY-
504 PM EDT SUN JUN 29 2008

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

AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM CAPE VINCENT TO STONY POINT 
TO 18 MILES SOUTHWEST OF SOUTHWICK BEACH...MOVING NORTHEAST AT 37 
MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  STONY POINT BY 510 PM EDT...
  CHAUMONT BY 515 PM EDT...
  HENDERSON HARBOR BY 520 PM EDT...
  DEPAUVILLE BY 525 PM EDT...
  PERCH RIVER BY 530 PM EDT...
  LA FARGEVILLE BY 535 PM EDT...
  ADAMS CENTER BY 545 PM EDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR WESTERN NEW YORK.

LAT...LON 4410 7585 4371 7586 4368 7621 4381 7625
      4391 7637 4390 7645 4393 7639 4387 7621
      4392 7612 4399 7608 4395 7629 4405 7631
      4404 7640 4411 7638 4430 7607 4424 7611
      4425 7607 4432 7607 4436 7599
TIME...MOT...LOC 2104Z 238DEG 32KT 4422 7628 4393 7627
          4364 7648

$$

APB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:35 PM EDTAreal Flood AdvisoryBUFAllegany, Cattaraugus84 min
Jun 29, 1:00 PM EDTSpecial Marine WarningBUF112 min
Jun 29, 1:03 PM EDTSevere Thunderstorm WarningBUFChautauqua57 min
Jun 29, 1:07 PM EDTSpecial Marine WarningBUF103 min
Jun 29, 1:13 PM EDTSevere Thunderstorm WarningBUFNiagara77 min
Jun 29, 1:46 PM EDTSevere Thunderstorm WarningBUFErie, Niagara74 min
Jun 29, 2:07 PM EDTSevere Thunderstorm WarningBUFOrleans53 min
Jun 29, 2:23 PM EDTSpecial Marine WarningBUF97 min
Jun 29, 2:25 PM EDTSevere Thunderstorm WarningBUFErie35 min
Jun 29, 2:33 PM EDTSevere Thunderstorm WarningBUFMonroe27 min
Jun 29, 2:55 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Erie, Wyoming65 min
Jun 29, 3:34 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston, Wyoming56 min
Jun 29, 3:51 PM EDTSpecial Marine WarningBUF54 min
Jun 29, 4:01 PM EDTSpecial Marine WarningBUF89 min
Jun 29, 4:11 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario79 min
Jun 29, 4:24 PM EDTSevere Thunderstorm WarningBUFWayne21 min
Jun 29, 4:43 PM EDTSpecial Marine WarningBUF32 min
Jun 29, 4:49 PM EDTSpecial Marine WarningBUF116 min
Jun 29, 4:54 PM EDTSevere Thunderstorm WarningBUFWayne63 min
Jun 29, 5:01 PM EDTSpecial Marine WarningBUF89 min
Jun 29, 5:10 PM EDTSevere Thunderstorm WarningBUFOswego48 min
Jun 29, 5:18 PM EDTSevere Thunderstorm WarningBUFChautauqua47 min
Jun 29, 5:18 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis72 min
Jun 29, 5:39 PM EDTTornado WarningBUFCattaraugus, Chautauqua41 min
Jun 29, 5:43 PM EDTSevere Thunderstorm WarningBUFJefferson22 min
Jun 29, 6:44 PM EDTSpecial Marine WarningBUF41 min

Nearby

Severe Thunderstorm Warnings in New York, 2008Every severe thunderstorm warning in 2008

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.