Alert archive / New York / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 59, NWS Buffalo, NY

July 26, 2009Cayuga County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2009, 5:45 PM EDT for Cayuga County, New York. It was in force for 35 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: Jul 26, 2009, 5:45 PM EDT (21:45 UTC)
Expired: Jul 26, 2009, 6:20 PM EDT
In force: 35 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Cayuga County, NY

The radar

The Ft Drum radar (KTYX), 107 km from the middle of the area, began a volume at 21:48 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 12:00Z, 9.8 hours before the alert went out and 171 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: 267 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 820 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 262145
SVRBUF
NYC011-262230-
/O.NEW.KBUF.SV.W.0059.090726T2145Z-090726T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
545 PM EDT SUN JUL 26 2009

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 630 PM EDT

* AT 545 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES WEST OF WEEDSPORT...OR
  NEAR MONTEZUMA...AND MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WEEDSPORT BY 555 PM EDT...
  CATO BY 600 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

&&

LAT...LON 4303 7659 4302 7668 4303 7670 4311 7671
      4322 7649 4304 7650
TIME...MOT...LOC 2145Z 238DEG 21KT 4306 7666

$$

RSH

1 follow-up statement

000 
WWUS51 KBUF 262220 RRA
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
620 PM EDT SUN JUL 26 2009

NYC011-262230-
/O.CAN.KBUF.SV.W.0059.000000T0000Z-090726T2230Z/
CAYUGA NY-
620 PM EDT SUN JUL 26 2009

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CAYUGA COUNTY IS
CANCELLED...

AT 620 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 CANCELLED.

LAT...LON 4303 7659 4302 7668 4303 7670 4311 7671
      4322 7649 4304 7650
TIME...MOT...LOC 2220Z 238DEG 21KT 4317 7642

$$

THOMAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 8:00 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario, Wayne	41 min
Jul 25, 8:07 PM EDT	Special Marine Warning	BUF		76 min
Jul 25, 9:35 PM EDT	Special Marine Warning	BUF		55 min
Jul 26, 1:51 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Wyoming	39 min
Jul 26, 3:12 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	50 min
Jul 26, 3:45 PM EDT	Special Marine Warning	BUF		57 min
Jul 26, 4:48 PM EDT	Areal Flood Advisory	BUF	Cayuga, Ontario, Wayne	117 min
Jul 26, 5:02 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	58 min
Jul 26, 6:05 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	55 min
Jul 26, 6:59 PM EDT	Tornado Warning	BUF	Cattaraugus	46 min
Jul 26, 7:24 PM EDT	Special Marine Warning	BUF		48 min
Jul 26, 7:46 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	37 min

Nearby

Severe Thunderstorm Warnings in New York, 2009 Every severe thunderstorm warning in 2009

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.