Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 69, NWS Buffalo, NY

July 9, 2007Cayuga County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 9, 2007, 2:10 AM EDT for Cayuga County, New York. It was in force for 50 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: Jul 9, 2007, 2:10 AM EDT (06:10 UTC)
Expired: Jul 9, 2007, 3:00 AM EDT
In force: 50 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Cayuga County, NY

The radar

The Ft Drum radar (KTYX), 94 km from the middle of the area, began a volume at 06:13 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

Time	Report	Where	Remark
Jul 9, 2:50 AM EDT	TSTM WND DMG	Conquest, NY	WIRES 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, 6.2 hours before the alert went out and 174 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: 1033 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 1283 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 297 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 090611
SVRBUF
NYC011-090700-
/O.NEW.KBUF.SV.W.0069.070709T0610Z-070709T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
210 AM EDT MON JUL 9 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 300 AM EDT

* AT 205 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
  WERE LOCATED ALONG A LINE EXTENDING FROM 23 MILES NORTHWEST OF 
  OSWEGO TO 14 MILES NORTHEAST OF WEBSTER...AND MOVING EAST AT 50
  MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CATO BY 245 AM EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. 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 4305 7650 4308 7670 4333 7669 4334 7670
      4340 7664 4340 7662 4336 7661 4326 7661
      4324 7651

$$

RSH

2 follow-up statements

000 
WWUS51 KBUF 090637
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
237 AM EDT MON JUL 9 2007

NYC011-090700-
/O.CON.KBUF.SV.W.0069.000000T0000Z-070709T0700Z/
CAYUGA NY-
237 AM EDT MON JUL 9 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM EDT
FOR CAYUGA COUNTY...

AT 235 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF OSWEGO 
TO 20 MILES SOUTHWEST OF OSWEGO...MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  IRA AND CONQUEST AND MERIDIAN BY 245 AM EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. 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 4305 7650 4308 7670 4333 7669 4334 7670
      4340 7664 4340 7662 4336 7661 4326 7661
      4324 7651

$$

RSH

000 
WWUS51 KBUF 090658
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
258 AM EDT MON JUL 9 2007

NYC011-090708-
/O.EXP.KBUF.SV.W.0069.000000T0000Z-070709T0700Z/
CAYUGA NY-
258 AM EDT MON JUL 9 2007

...THE SEVERE THUNDERSTORM WARNING FOR CAYUGA COUNTY EXPIRES AT 300
AM EDT...

AT 258 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING WILL MOVE OUT OF THE AREA 
AFTER 3 AM EDT. 

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

LAT...LON 4305 7650 4308 7670 4333 7669 4334 7670
      4340 7664 4340 7662 4333 7661 4326 7661
      4324 7651

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 11:51 PM EDT	Special Marine Warning	BUF		84 min
Jul 9, 1:52 AM EDT	Special Marine Warning	BUF		53 min
Jul 9, 2:13 AM EDT	Severe Thunderstorm Warning	BUF	Oswego	62 min
Jul 9, 2:30 AM EDT	Special Marine Warning	BUF		60 min
Jul 9, 2:33 AM EDT	Severe Thunderstorm Warning	BUF	Wayne	27 min
Jul 9, 2:53 AM EDT	Special Marine Warning	BUF		52 min
Jul 9, 3:15 AM EDT	Severe Thunderstorm Warning	BUF	Oswego	30 min
Jul 9, 3:23 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	67 min
Jul 9, 4:12 PM EDT	Special Marine Warning	BUF		33 min
Jul 9, 4:23 PM EDT	Special Marine Warning	BUF		67 min
Jul 9, 4:34 PM EDT	Special Marine Warning	BUF		56 min
Jul 9, 5:34 PM EDT	Special Marine Warning	BUF		50 min
Jul 9, 5:43 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	62 min
Jul 9, 6:28 PM EDT	Special Marine Warning	BUF		81 min

Nearby

Severe Thunderstorm Warnings in New York, 2007 Every severe thunderstorm warning in 2007

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.