Alert archive / New York / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 60, NWS Buffalo, NY

September 20, 2005Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 20, 2005, 6:36 AM EDT for Jefferson County, New York. It was in force for 24 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 20, 2005, 6:36 AM EDT (10:36 UTC)
Expired: Sep 20, 2005, 7:00 AM EDT
In force: 24 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 37 km from the middle of the area, began a volume at 10:37 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

Albany, NY (KALY), launched 00:00Z, 10.6 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1666 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 94 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.

000 
WUUS51 KBUF 201036
SVRBUF
NYC045-201100-
/O.NEW.KBUF.SV.W.0060.050920T1036Z-050920T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
636 AM EDT TUE SEP 20 2005

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 700 AM EDT

* AT 632 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PHILADELPHIA...OR ABOUT 6 MILES NORTHEAST OF FORT DRUM...AND WAS
  MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANTWERP BY 640 AM 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.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BUFFALO.

LAT...LON 4412 7555 4407 7549 4406 7550 4405 7549
      4401 7551 4399 7569 4398 7571 4415 7577
      4422 7545

$$

LEVAN

1 follow-up statement

000 
WWUS51 KBUF 201101
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
701 AM EDT TUE SEP 20 2005

NYC045-201111-
/O.EXP.KBUF.SV.W.0060.000000T0000Z-050920T1100Z/
JEFFERSON NY-
701 AM EDT TUE SEP 20 2005

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY EXPIRES AT
700 AM EDT...

AT 701 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED THE 
WARNED AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4412 7555 4407 7549 4406 7550 4405 7549
      4401 7551 4399 7569 4398 7571 4415 7577
      4422 7545

$$

LEVAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 20, 1:57 AM EDT	Special Marine Warning	BUF		63 min
Sep 20, 2:19 AM EDT	Severe Thunderstorm Warning	BUF	Erie	47 min
Sep 20, 5:26 AM EDT	Special Marine Warning	BUF		34 min
Sep 20, 5:40 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	38 min
Sep 20, 6:15 AM EDT	Special Marine Warning	BUF		45 min

Nearby

Severe Thunderstorm Warnings in New York, 2005 Every severe thunderstorm warning in 2005

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.