Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 41, NWS Buffalo, NY

June 19, 2007Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 19, 2007, 4:17 PM EDT for Chautauqua County, New York. It was in force for 58 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 19, 2007, 4:17 PM EDT (20:17 UTC)
Expired: Jun 19, 2007, 5:15 PM EDT
In force: 58 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 80 km from the middle of the area, began a volume at 20:19 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
Jun 19, 4:55 PM EDT	TSTM WND DMG	7 E Westfield, NY	TREES DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 19, 12:19 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.3 hours before the alert went out and 81 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: 150 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1612 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 192017
SVRBUF
NYC013-192115-
/O.NEW.KBUF.SV.W.0041.070619T2017Z-070619T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
417 PM EDT TUE JUN 19 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 515 PM EDT

* AT 415 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 19 MILES SOUTHWEST OF FINDLEY
  LAKE...OR ABOUT 8 MILES SOUTH OF ERIE...AND MOVING EAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FINDLEY LAKE BY 435 PM EDT...
  CHAUTAUQUA INSTITUTE BY 450 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4254 7906 4201 7908 4200 7975 4228 7974
      4236 7954 4242 7947 4241 7945 4250 7935
      4257 7918 4257 7911

$$

TMA

2 follow-up statements

000 
WWUS51 KBUF 192050
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
450 PM EDT TUE JUN 19 2007

NYC013-192115-
/O.CON.KBUF.SV.W.0041.000000T0000Z-070619T2115Z/
CHAUTAUQUA NY-
450 PM EDT TUE JUN 19 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CHAUTAUQUA COUNTY...

AT 448 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR RIPLEY...OR ABOUT 22
MILES EAST OF ERIE...MOVING NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MAYVILLE BY 455 PM EDT...
  WESTFIELD BY 500 PM EDT...
  BROCTON BY 505 PM EDT...
  CASSADAGA BY 510 PM EDT...
  FREDONIA BY 515 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4254 7906 4201 7908 4200 7975 4228 7974
      4236 7954 4242 7947 4241 7945 4250 7935
      4257 7918 4257 7911

$$

TJP

000 
WWUS51 KBUF 192115
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
514 PM EDT TUE JUN 19 2007

NYC013-192124-
/O.EXP.KBUF.SV.W.0041.000000T0000Z-070619T2115Z/
CHAUTAUQUA NY-
514 PM EDT TUE JUN 19 2007

...THE SEVERE THUNDERSTORM WARNING FOR CHAUTAUQUA COUNTY EXPIRES AT
515 PM EDT...

AT 514 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

HOWEVER...HEAVY RAIN AND GUSTY WINDS ARE STILL POSSIBLE FROM 
THUNDERSTORMS THROUGH 615 PM EDT. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4254 7906 4201 7908 4200 7975 4228 7974
      4236 7954 4242 7947 4241 7945 4250 7935
      4257 7918 4257 7911

$$

TJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 11:43 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	47 min
Jun 19, 11:55 AM EDT	Severe Thunderstorm Warning	BUF	Erie	35 min
Jun 19, 11:59 AM EDT	Severe Thunderstorm Warning	BUF	Wyoming	51 min
Jun 19, 12:16 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	50 min
Jun 19, 12:21 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	54 min
Jun 19, 12:41 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	41 min
Jun 19, 12:45 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	60 min
Jun 19, 1:25 PM EDT	Special Marine Warning	BUF		65 min
Jun 19, 1:34 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	56 min
Jun 19, 2:17 PM EDT	Special Marine Warning	BUF		58 min
Jun 19, 2:27 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	48 min
Jun 19, 2:44 PM EDT	Special Marine Warning	BUF		61 min
Jun 19, 2:51 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	54 min
Jun 19, 3:00 PM EDT	Special Marine Warning	BUF		30 min
Jun 19, 3:07 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	38 min
Jun 19, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	55 min
Jun 19, 3:23 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	67 min
Jun 19, 3:32 PM EDT	Tornado Warning	BUF	Chautauqua	28 min
Jun 19, 3:43 PM EDT	Severe Thunderstorm Warning	BUF	Erie	62 min
Jun 19, 3:57 PM EDT	Special Marine Warning	BUF		63 min
Jun 19, 4:04 PM EDT	Special Marine Warning	BUF		86 min
Jun 19, 4:30 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Wyoming	69 min
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	56 min
Jun 19, 4:45 PM EDT	Severe Thunderstorm Warning	BUF	Erie	30 min
Jun 19, 4:47 PM EDT	Special Marine Warning	BUF		88 min
Jun 19, 4:47 PM EDT	Severe Thunderstorm Warning	BUF	Orleans	58 min
Jun 19, 5:00 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	90 min
Jun 19, 5:09 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	66 min
Jun 19, 5:31 PM EDT	Special Marine Warning	BUF		89 min
Jun 19, 5:58 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	77 min
Jun 19, 6:30 PM EDT	Special Marine Warning	BUF		2 hr
Jun 19, 7:05 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Oswego	40 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.