Alert archive / New York / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 59, NWS Buffalo, NY

September 20, 2005Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 20, 2005, 5:40 AM EDT for Lewis County, New York. It was in force for 38 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
Sep 20, 2005, 5:40 AM EDT (09:40 UTC)
Expired
Sep 20, 2005, 6:18 AM EDT
In force
38 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 21 km from the middle of the area, began a volume at 09:43 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
Sep 20, 6:03 AM EDTTSTM WND DMGCroghan, NYTREE DOWN ON OLD STATE ROAD. LARGE HAIL REPORTED, NO SIZE GIVEN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 9.7 hours before the alert went out and 190 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 00:00Z on 2005-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2005-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
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 200940
SVRBUF
NYC049-201030-
/O.NEW.KBUF.SV.W.0059.050920T0940Z-050920T1030Z/

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

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 630 AM EDT

* AT 538 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 18 MILES SOUTHWEST OF INDIAN
  RIVER...OR ABOUT 13 MILES SOUTHEAST OF WATERTOWN...AND WAS MOVING
  EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CASTORLAND BY 545 AM EDT...
  CROGHAN BY 550 AM EDT...
  INDIAN RIVER BY 555 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 4384 7514 4382 7545 4379 7568 4380 7576
      4388 7578 4388 7573 4395 7563 4396 7555
      4400 7552 4405 7516

$$

LEVAN
2 follow-up statements
000 
WWUS51 KBUF 200955
SVSBUF

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

NYC049-201030-
/O.CON.KBUF.SV.W.0059.000000T0000Z-050920T1030Z/
LEWIS NY-
553 AM EDT TUE SEP 20 2005

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM EDT
FOR LEWIS COUNTY...

AT 547 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR CASTORLAND...MOVING EAST AT 65 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CROGHAN AND DIANA BY 6AM EDT
  HARRISVILLE BY 615 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.

LAT...LON 4384 7514 4382 7545 4379 7568 4380 7576
      4388 7578 4388 7573 4395 7563 4396 7555
      4400 7552 4405 7516

$$

LEVAN
000 
WWUS51 KBUF 201018
SVSBUF

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

NYC049-201027-
/O.CAN.KBUF.SV.W.0059.000000T0000Z-050920T1030Z/
LEWIS NY-
617 AM EDT TUE SEP 20 2005

...THE SEVERE THUNDERSTORM WARNING FOR LEWIS COUNTY IS CANCELLED...

AT 617 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN CANCELLED.

LAW ENFORCEMENT REPORTED TREES DOWN IN CROGHAN. DIME SIZE HAIL WAS 
REPORTED IN CARTHAGE.

LAT...LON 4384 7514 4382 7545 4379 7568 4380 7576
      4388 7578 4388 7573 4395 7563 4396 7555
      4400 7552 4405 7516

$$

LEVAN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 1:57 AM EDTSpecial Marine WarningBUF63 min
Sep 20, 2:19 AM EDTSevere Thunderstorm WarningBUFErie47 min
Sep 20, 5:26 AM EDTSpecial Marine WarningBUF34 min
Sep 20, 6:15 AM EDTSpecial Marine WarningBUF45 min
Sep 20, 6:36 AM EDTSevere Thunderstorm WarningBUFJefferson24 min

Nearby

Severe Thunderstorm Warnings in New York, 2005Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.