Alert archive / New York / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 87, NWS Buffalo, NY

August 25, 2011Jefferson County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 25, 2011, 12:22 AM EDT for Jefferson County, Oswego County, New York. It was in force for 53 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: Aug 25, 2011, 12:22 AM EDT (04:22 UTC)
Expired: Aug 25, 2011, 1:15 AM EDT
In force: 53 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Jefferson County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 62 km from the middle of the area, began a volume at 04:26 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 4.4 hours before the alert went out and 213 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: 352 J/kg
Mixed-layer CIN: -345 J/kg
Mixed-layer LCL: 1391 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 327 m²/s²
0-3 km storm-relative helicity: 391 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

953 
WUUS51 KBUF 250422
SVRBUF
NYC045-075-250515-
/O.NEW.KBUF.SV.W.0087.110825T0422Z-110825T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1222 AM EDT THU AUG 25 2011

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 115 AM EDT

* AT 1218 AM 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 19 MILES WEST OF CLAYTON TO 12 MILES WEST OF NINE MILE        
  POINT...AND MOVING NORTHEAST AT 55 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  NINE MILE POINT...
  STONY POINT...
  SOUTHWICK BEACH...
  PULASKI...
  ADAMS...
  REDFIELD...
  CAPE VINCENT...
  SACKETS HARBOR...
  WATERTOWN...
  CALCIUM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 500 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4437 7578 4380 7585 4351 7578 4346 7652
      4358 7621 4378 7623 4391 7636 4388 7645
      4390 7645 4393 7641 4388 7629 4390 7614
      4398 7622 4396 7630 4411 7638 4420 7629
      4424 7612 4426 7617 4430 7614 4440 7585
TIME...MOT...LOC 0421Z 245DEG 50KT 4433 7640 4354 7658

$$

HITCHCOCK

2 follow-up statements

785 
WWUS51 KBUF 250451
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1251 AM EDT THU AUG 25 2011

NYC045-075-250515-
/O.CON.KBUF.SV.W.0087.000000T0000Z-110825T0515Z/
JEFFERSON NY-OSWEGO NY-
1251 AM EDT THU AUG 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM EDT
FOR NORTHERN OSWEGO AND JEFFERSON COUNTIES...

AT 1245 AM 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 DEPAUVILLE TO NEW HAVEN...MOVING EAST AT 50 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  LORRAINE...
  THERESA...
  REDFIELD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...BE PREPARED 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 500 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

&&

LAT...LON 4437 7578 4380 7585 4351 7578 4346 7652
      4358 7621 4378 7623 4391 7636 4388 7645
      4390 7645 4393 7641 4388 7629 4390 7614
      4398 7622 4396 7630 4411 7638 4420 7629
      4424 7612 4426 7617 4430 7614 4440 7585
TIME...MOT...LOC 0450Z 245DEG 50KT 4415 7598 4352 7613

$$

TJP

949 
WWUS51 KBUF 250519
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
119 AM EDT THU AUG 25 2011

NYC045-075-250529-
/O.EXP.KBUF.SV.W.0087.000000T0000Z-110825T0515Z/
JEFFERSON NY-OSWEGO NY-
119 AM EDT THU AUG 25 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OSWEGO AND JEFFERSON
COUNTIES HAS EXPIRED...

AT 119 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND WERE NO 
LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT
THURSDAY MORNING FOR WESTERN NEW YORK.

LAT...LON 4437 7578 4380 7585 4351 7578 4346 7652
      4358 7621 4378 7623 4391 7636 4388 7645
      4390 7645 4393 7641 4388 7629 4390 7614
      4398 7622 4396 7630 4411 7638 4420 7629
      4424 7612 4426 7617 4430 7614 4440 7585
TIME...MOT...LOC 0451Z 245DEG 50KT 4415 7596 4352 7611

$$

TJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 9:47 PM EDT	Special Marine Warning	BUF		58 min
Aug 24, 9:56 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara, Orleans	64 min
Aug 24, 10:06 PM EDT	Special Marine Warning	BUF		54 min
Aug 24, 10:21 PM EDT	Special Marine Warning	BUF		54 min
Aug 24, 10:24 PM EDT	Special Marine Warning	BUF		96 min
Aug 24, 10:34 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie	56 min
Aug 24, 10:37 PM EDT	Special Weather Statement	BUF	Erie	53 min
Aug 24, 10:45 PM EDT	Severe Thunderstorm Warning	BUF	Erie	49 min
Aug 24, 10:54 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe, Orleans	41 min
Aug 24, 11:33 PM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus, Livingston, Monroe, Ontario, Wayne and 1 more	87 min
Aug 24, 11:38 PM EDT	Special Marine Warning	BUF		52 min
Aug 24, 11:59 PM EDT	Special Marine Warning	BUF		61 min
Aug 25, 12:17 AM EDT	Special Marine Warning	BUF		73 min
Aug 25, 12:27 AM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus, Chautauqua	63 min
Aug 25, 12:42 AM EDT	Areal Flood Advisory	BUF	Cattaraugus, Chautauqua, Erie	3 hr
Aug 25, 1:06 AM EDT	Special Weather Statement	BUF	Lewis	54 min
Aug 25, 1:17 AM EDT	Special Marine Warning	BUF		58 min
Aug 25, 1:58 AM EDT	Special Weather Statement	BUF	Allegany	62 min
Aug 25, 2:31 AM EDT	Special Weather Statement	BUF	Ontario	59 min
Aug 25, 3:05 AM EDT	Special Weather Statement	BUF	Oswego	55 min
Aug 25, 3:23 AM EDT	Special Weather Statement	BUF	Niagara	52 min
Aug 25, 12:12 PM EDT	Special Weather Statement	BUF	Oswego	63 min

Nearby

Severe Thunderstorm Warnings in New York, 2011 Every 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.