Alert archive / New York / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 19, NWS Buffalo, NY

June 26, 2009Cayuga County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 26, 2009, 5:43 AM EDT for Cayuga County, Wayne County, New York. It was in force for 62 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
Jun 26, 2009, 5:43 AM EDT (09:43 UTC)
Expired
Jun 26, 2009, 6:45 AM EDT
In force
62 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Cayuga County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 117 km from the middle of the area, began a volume at 09:45 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
Jun 26, 5:45 AM EDTTSTM WND DMGLyons, NYSEVERAL POWER LINES DOWN

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.7 hours before the alert went out and 154 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, Buffalo Intl Airport, NY at 00:00Z on 2009-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2009-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.1939587897Sfc1 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
127 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
1645 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 260943
SVRBUF
NYC011-117-261045-
/O.NEW.KBUF.SV.W.0019.090626T0943Z-090626T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
543 AM EDT FRI JUN 26 2009

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CAYUGA COUNTY IN CENTRAL NEW YORK
  SOUTHEASTERN WAYNE COUNTY IN WESTERN NEW YORK

* UNTIL 645 AM EDT

* AT 541 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
  LYONS...OR 15 MILES NORTHWEST OF WATERLOO...AND MOVING EAST AT 40
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLYDE BY 555 AM EDT...
  WEEDSPORT BY 615 AM EDT...

LAT...LON 4301 7707 4302 7709 4318 7700 4326 7656
      4325 7649 4305 7648
TIME...MOT...LOC 0943Z 271DEG 34KT 4308 7700

$$

SFM
2 follow-up statements
000 
WWUS51 KBUF 261013
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
613 AM EDT FRI JUN 26 2009

NYC011-117-261045-
/O.CON.KBUF.SV.W.0019.000000T0000Z-090626T1045Z/
WAYNE NY-CAYUGA NY-
613 AM EDT FRI JUN 26 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR NORTH CENTRAL CAYUGA AND SOUTHEASTERN WAYNE COUNTIES...

AT 612 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 CONQUEST...OR 8 MILES NORTH OF MONTEZUMA...MOVING EAST 
AT 45 MPH. THIS STORM HAS A HISTORY OF DAMAGING WINDS.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CATO BY 620 AM EDT...
  MERIDIAN BY 625 AM EDT...

LAT...LON 4301 7707 4302 7709 4318 7700 4326 7656
      4325 7649 4305 7648
TIME...MOT...LOC 1013Z 259DEG 39KT 4313 7669

$$

SFM
000 
WWUS51 KBUF 261037
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
637 AM EDT FRI JUN 26 2009

NYC011-117-261046-
/O.EXP.KBUF.SV.W.0019.000000T0000Z-090626T1045Z/
WAYNE NY-CAYUGA NY-
637 AM EDT FRI JUN 26 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CAYUGA AND
SOUTHEASTERN WAYNE COUNTIES WILL EXPIRE AT 645 AM EDT...

AT 636 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED 
AREA...THUS THE WARNING WILL BE ALLOWED TO EXPIRE.


LAT...LON 4301 7707 4302 7709 4318 7700 4326 7656
      4325 7649 4305 7648
TIME...MOT...LOC 1036Z 259DEG 39KT 4317 7636

$$

SFM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:01 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Erie, Wyoming31 min
Jun 25, 8:10 PM EDTSpecial Marine WarningBUF37 min
Jun 25, 8:14 PM EDTSpecial Marine WarningBUF31 min
Jun 26, 12:10 PM EDTSevere Thunderstorm WarningBUFGenesee, Monroe65 min
Jun 26, 12:17 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston37 min
Jun 26, 12:28 PM EDTSpecial Marine WarningBUF44 min
Jun 26, 12:41 PM EDTSevere Thunderstorm WarningBUFMonroe, Orleans, Wayne64 min
Jun 26, 12:50 PM EDTSpecial Marine WarningBUF55 min
Jun 26, 1:06 PM EDTSpecial Marine WarningBUF84 min
Jun 26, 1:09 PM EDTSevere Thunderstorm WarningBUFMonroe66 min
Jun 26, 1:32 PM EDTFlash Flood WarningBUFMonroe, Ontario, Wayne3 hr
Jun 26, 1:34 PM EDTSevere Thunderstorm WarningBUFCayuga, Monroe, Ontario, Wayne56 min
Jun 26, 1:34 PM EDTSevere Thunderstorm WarningBUFAllegany29 min
Jun 26, 1:47 PM EDTFlash Flood WarningBUFAllegany3 hr
Jun 26, 2:23 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario67 min
Jun 26, 2:47 PM EDTSpecial Marine WarningBUF88 min
Jun 26, 3:11 PM EDTSevere Thunderstorm WarningBUFJefferson49 min
Jun 26, 3:46 PM EDTSevere Thunderstorm WarningBUFJefferson, Oswego31 min
Jun 26, 4:13 PM EDTSpecial Marine WarningBUF30 min
Jun 26, 4:39 PM EDTFlash Flood WarningBUFWyoming87 min
Jun 26, 5:27 PM EDTSpecial Marine WarningBUF32 min

Nearby

Severe Thunderstorm Warnings in New York, 2009Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.