Alert archive / New York / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 97, NWS Buffalo, NY

September 2, 2013Jefferson County, Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 2, 2013, 4:39 PM EDT for Jefferson County, Lewis County, New York. It was in force for 51 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
Sep 2, 2013, 4:39 PM EDT (20:39 UTC)
Expired
Sep 2, 2013, 5:30 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 5 km from the middle of the area, began a volume at 20:41 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
Sep 2, 3:18 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.7 hours before the alert went out and 192 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 2013-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 129 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 2013-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
129 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
31 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.

506 
WUUS51 KBUF 022039
SVRBUF
NYC045-049-022130-
/O.NEW.KBUF.SV.W.0097.130902T2039Z-130902T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
439 PM EDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 530 PM EDT

* AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BARNES CORNERS...OR 16 MILES SOUTHEAST OF WATERTOWN...AND MOVING
  NORTHEAST AT 20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  LOWVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4369 7578 4369 7583 4384 7592 4405 7538
      4382 7525
TIME...MOT...LOC 2039Z 246DEG 18KT 4378 7574

$$

WOOD
2 follow-up statements
534 
WWUS51 KBUF 022109
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
509 PM EDT MON SEP 2 2013

NYC045-049-022130-
/O.CON.KBUF.SV.W.0097.000000T0000Z-130902T2130Z/
LEWIS NY-JEFFERSON NY-
509 PM EDT MON SEP 2 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHEASTERN JEFFERSON AND NORTHERN LEWIS COUNTIES...

AT 503 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 6 MILES SOUTH OF COPENHAGEN...OR 17 MILES SOUTHEAST OF
WATERTOWN...MOVING EAST AT 15 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  COPENHANGEN...
  CASTORLAND...
  CROGHAN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4369 7578 4369 7583 4384 7592 4405 7538
      4382 7525
TIME...MOT...LOC 2108Z 248DEG 13KT 4381 7565

$$

WOOD
894 
WWUS51 KBUF 022127
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
527 PM EDT MON SEP 2 2013

NYC045-049-022137-
/O.EXP.KBUF.SV.W.0097.000000T0000Z-130902T2130Z/
LEWIS NY-JEFFERSON NY-
527 PM EDT MON SEP 2 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JEFFERSON AND
NORTHERN LEWIS COUNTIES WILL EXPIRE AT 530 PM EDT...

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

LAT...LON 4369 7578 4369 7583 4384 7592 4405 7538
      4382 7525
TIME...MOT...LOC 2127Z 248DEG 13KT 4384 7556

$$

SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 8:03 PM EDTSpecial Weather StatementBUFAllegany57 min
Sep 1, 10:40 PM EDTSpecial Weather StatementBUFWayne65 min
Sep 1, 11:43 PM EDTSpecial Weather StatementBUFOswego77 min
Sep 2, 12:20 AM EDTSevere Thunderstorm WarningBUFLewis, Oswego55 min
Sep 2, 11:06 AM EDTSpecial Marine WarningBUF54 min
Sep 2, 11:31 AM EDTSpecial Marine WarningBUF44 min
Sep 2, 11:52 AM EDTSevere Thunderstorm WarningBUFChautauqua23 min
Sep 2, 12:13 PM EDTSevere Thunderstorm WarningBUFChautauqua32 min
Sep 2, 12:39 PM EDTSevere Thunderstorm WarningBUFChautauqua36 min
Sep 2, 12:51 PM EDTSpecial Weather StatementBUFCayuga39 min
Sep 2, 1:11 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua34 min
Sep 2, 1:28 PM EDTSpecial Weather StatementBUFGenesee62 min
Sep 2, 1:35 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Ontario, Wyoming55 min
Sep 2, 2:01 PM EDTSevere Thunderstorm WarningBUFCayuga29 min
Sep 2, 2:14 PM EDTSpecial Weather StatementBUFCattaraugus61 min
Sep 2, 2:37 PM EDTSpecial Marine WarningBUF38 min
Sep 2, 2:46 PM EDTSpecial Weather StatementBUFCayuga29 min
Sep 2, 3:20 PM EDTSpecial Marine WarningBUF85 min
Sep 2, 3:31 PM EDTSevere Thunderstorm WarningBUFOswego59 min
Sep 2, 3:45 PM EDTSpecial Marine WarningBUF2 hr
Sep 2, 3:59 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne61 min
Sep 2, 4:15 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne60 min
Sep 2, 4:25 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis65 min
Sep 2, 4:31 PM EDTSevere Thunderstorm WarningBUFWayne59 min
Sep 2, 4:32 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego43 min
Sep 2, 4:36 PM EDTFlash Flood WarningBUFCayuga, Oswego3 hr
Sep 2, 4:57 PM EDTSevere Thunderstorm WarningBUFLewis, Oswego33 min
Sep 2, 4:59 PM EDTSpecial Marine WarningBUF61 min
Sep 2, 5:24 PM EDTSevere Thunderstorm WarningBUFLewis36 min
Sep 2, 5:35 PM EDTSevere Thunderstorm WarningBUFLewis25 min
Sep 2, 5:36 PM EDTAreal Flood AdvisoryBUFLewis3 hr
Sep 2, 6:24 PM EDTSmall Craft AdvisoryBUF61 hr

Nearby

Severe Thunderstorm Warnings in New York, 2013Every severe thunderstorm warning in 2013

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.