Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 98, NWS Buffalo, NY

August 24, 2007Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 24, 2007, 9:16 PM EDT for Ontario County, New York. It was in force for 59 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: Aug 24, 2007, 9:16 PM EDT (01:16 UTC)
Expired: Aug 24, 2007, 10:15 PM EDT
In force: 59 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Ontario County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.3 hours before the alert went out and 115 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: 123 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 1831 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 135 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 250116
SVRBUF
NYC069-250215-
/O.NEW.KBUF.SV.W.0098.070825T0116Z-070825T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
916 PM EDT FRI AUG 24 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 1015 PM EDT

* AT 912 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR HONEOYE...OR
  ABOUT 11 MILES WEST OF MIDDLESEX...AND MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CANANDAIGUA BY 935 PM EDT...

LAT...LON 4284 7700 4275 7721 4275 7731 4268 7735
      4260 7748 4267 7749 4268 7753 4278 7758
      4299 7714
TIME...MOT...LOC 0116Z 240DEG 31KT 4274 7745

$$

TJP

2 follow-up statements

000 
WWUS51 KBUF 250139
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
939 PM EDT FRI AUG 24 2007

NYC069-250215-
/O.CON.KBUF.SV.W.0098.000000T0000Z-070825T0215Z/
ONTARIO NY-
939 PM EDT FRI AUG 24 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR ONTARIO COUNTY...

AT 928 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR BRISTOL
MOUNTAIN...OR ABOUT 7 MILES NORTHWEST OF MIDDLESEX...MOVING NORTHEAST
AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  GORHAM BY 945 PM EDT...

LAT...LON 4284 7700 4275 7721 4275 7731 4268 7735
      4260 7748 4267 7749 4268 7753 4278 7758
      4299 7714
TIME...MOT...LOC 0139Z 240DEG 31KT 4284 7722

$$

TJP

000 
WWUS51 KBUF 250215
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1014 PM EDT FRI AUG 24 2007

NYC069-250224-
/O.EXP.KBUF.SV.W.0098.000000T0000Z-070825T0215Z/
ONTARIO NY-
1014 PM EDT FRI AUG 24 2007

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO COUNTY EXPIRES AT 1015
PM EDT...

AT 1014 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...THUNDERSTORMS WILL CONTINUE TO PRODUCE BRIEF PERIODS OF 
HEAVY RAIN AS THEY CONTINUE TO TRACK EAST ACROSS THE AREA THROUGH 11 
PM EDT. 

LAT...LON 4284 7700 4275 7721 4275 7731 4268 7735
      4260 7748 4267 7749 4268 7753 4278 7758
      4299 7714
TIME...MOT...LOC 0214Z 240DEG 31KT 4299 7686

$$

TJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	35 min
Aug 24, 11:01 PM EDT	Special Marine Warning	BUF		89 min
Aug 24, 11:08 PM EDT	Special Marine Warning	BUF		42 min
Aug 24, 11:13 PM EDT	Special Marine Warning	BUF		64 min
Aug 24, 11:52 PM EDT	Special Marine Warning	BUF		83 min
Aug 25, 2:17 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	58 min
Aug 25, 2:39 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	66 min
Aug 25, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	36 min
Aug 25, 5:56 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	51 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; the sounding from the Mesonet's radiosonde archive.