Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 100, NWS Buffalo, NY

August 25, 2007Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 25, 2007, 2:17 PM EDT for Oswego County, New York. It was in force for 58 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: Aug 25, 2007, 2:17 PM EDT (18:17 UTC)
Expired: Aug 25, 2007, 3:15 PM EDT
In force: 58 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Oswego County, NY

The radar

The Ft Drum radar (KTYX), 60 km from the middle of the area, began a volume at 18:17 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

Time	Report	Where	Remark
Aug 25, 2:31 PM EDT	TSTM WND GST 60	Cleveland, NY

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.

Issued	Product	Office	Lasted
Aug 25, 1:58 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.3 hours before the alert went out and 193 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1654 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 643 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 251817
SVRBUF
NYC075-251915-
/O.NEW.KBUF.SV.W.0100.070825T1817Z-070825T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
217 PM EDT SAT AUG 25 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 315 PM EDT

* AT 213 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  SOUTHEAST OF CENTRAL SQUARE...OR ABOUT NEAR BRIDGEPORT...AND MOVING
  NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLEVELAND BY 230 PM EDT...

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 4335 7587 4333 7585 4317 7588 4324 7611
      4323 7616 4325 7617 4323 7620 4323 7632
      4329 7634 4351 7580
TIME...MOT...LOC 1817Z 247DEG 25KT 4320 7599

$$

HITCHCOCK

2 follow-up statements

000 
WWUS51 KBUF 251835
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
233 PM EDT SAT AUG 25 2007

NYC075-251915-
/O.CON.KBUF.SV.W.0100.000000T0000Z-070825T1915Z/
OSWEGO NY-
233 PM EDT SAT AUG 25 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR OSWEGO COUNTY...

AT 231 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF STRONG TO SEVERE THUNDERSTORM CAPABLE OF 
PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  
THIS STORM WAS LOCATED NEAR CLEVELAND...OR ABOUT 7 MILES WEST OF 
SYLVAN BEACH...MOVING NORTHEAST AT 30 MPH. ADDITIONAL THUNDERSTORMS 
WERE DEVELOPING NEAR SYRACUSE AND MOVING NORTHEAST AT 30 MPH.

AT 230 PM WIND GUSTS TO 60 MPH WERE REPORTED IN CLEVELAND.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLEVELAND AND ONEIDA LAKE BY 235 PM EDT...

BOATERS AND FISHERMAN ON ONEIDA LAKE SHOULD SEEK SAFE HARBOR 
IMMEDIATELY AND REMAIN IN PORT UNTIL THESE STORMS HAVE PASSED.
  
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 4335 7587 4333 7585 4317 7588 4324 7611
      4323 7616 4325 7617 4323 7620 4323 7632
      4329 7634 4351 7580
TIME...MOT...LOC 1833Z 247DEG 25KT 4324 7585

$$

HITCHCOCK

000 
WWUS51 KBUF 251914
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
314 PM EDT SAT AUG 25 2007

NYC075-251924-
/O.EXP.KBUF.SV.W.0100.000000T0000Z-070825T1915Z/
OSWEGO NY-
314 PM EDT SAT AUG 25 2007

...THE SEVERE THUNDERSTORM WARNING FOR OSWEGO COUNTY EXPIRES AT 315
PM EDT...

AT 314 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.

PLEASE REPORT SEVERE WEATHER TO LAW ENFORCEMENT FOR RELAY TO THE 
NATIONAL WEATHER SERVICE IN BUFFALO.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT 
SATURDAY EVENING FOR PORTIONS OF CENTRAL NEW YORK.

LAT...LON 4335 7587 4333 7585 4317 7588 4324 7611
      4323 7616 4325 7617 4323 7620 4323 7632
      4329 7634 4351 7580
TIME...MOT...LOC 1914Z 247DEG 25KT 4335 7549

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 9:16 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	59 min
Aug 24, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	35 min
Aug 24, 11:01 PM EDT	Special Marine Warning	BUF		89 min
Aug 24, 11:08 PM EDT	Special Marine Warning	BUF		42 min
Aug 24, 11:13 PM EDT	Special Marine Warning	BUF		64 min
Aug 24, 11:52 PM EDT	Special Marine Warning	BUF		83 min
Aug 25, 2:39 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	66 min
Aug 25, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	36 min
Aug 25, 5:56 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	51 min

Nearby

Severe Thunderstorm Warnings in New York, 2007 Every severe thunderstorm warning in 2007

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.