Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 87, NWS Buffalo, NY

August 3, 2007Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 3, 2007, 7:28 PM EDT for Lewis County, New York. It was in force for 49 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 3, 2007, 7:28 PM EDT (23:28 UTC)
Expired
Aug 3, 2007, 8:17 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Lewis County, NY

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 3, 12:56 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 11.5 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2007-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1646 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, Albany, NY at 12:00Z on 2007-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
1646 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 032329
SVRBUF
NYC049-040045-
/O.NEW.KBUF.SV.W.0087.070803T2328Z-070804T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
728 PM EDT FRI AUG 3 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LEWIS COUNTY IN CENTRAL NEW YORK

* UNTIL 845 PM EDT

* AT 726 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 17
  MILES SOUTHWEST OF HIGHMARKET...OR ABOUT 11 MILES NORTHWEST OF
  CAMDEN...AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OSCEOLA AND LEWIS BY 740 PM EDT...
  HIGHMARKET AND CONSTABLEVILLE BY 755 PM EDT...
  PORT LEYDEN BY 820 PM EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. 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 4362 7577 4347 7576 4343 7554 4360 7512
      4388 7515

$$

HITCHCOCK
2 follow-up statements
000 
WWUS51 KBUF 040002
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
800 PM EDT FRI AUG 3 2007

NYC049-040045-
/O.CON.KBUF.SV.W.0087.000000T0000Z-070804T0045Z/
LEWIS NY-
800 PM EDT FRI AUG 3 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR LEWIS COUNTY...

AT 755 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR HIGHMARKET...OR ABOUT 13 MILES WEST OF BOONVILLE...
MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CONSTABLEVILLE BY 805 PM EDT...
  TURIN BY 810 PM EDT...
  PORT LEYDEN BY 815 PM EDT...
  GRIEG AND LYONSDALE BY 825 PM EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. 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 4359 7565 4346 7567 4343 7554 4360 7512
      4388 7515

$$

HITCHCOCK
000 
WWUS51 KBUF 040017
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
816 PM EDT FRI AUG 3 2007

NYC049-040026-
/O.CAN.KBUF.SV.W.0087.000000T0000Z-070804T0045Z/
LEWIS NY-
816 PM EDT FRI AUG 3 2007

...THE SEVERE THUNDERSTORM WARNING FOR LEWIS COUNTY IS CANCELLED...

AT 816 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 CANCELLED.

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO PRODUCE LOCALLY 
HEAVY RAINFALL AND DANGEROUS CLOUD TO GROUND LIGHTNING STRIKES 
ACROSS SOUTHERN LEWIS COUNTY THROUGH 900 PM EDT...HOWEVER NO 
ADDITIONAL SEVERE THUNDERSTORMS ARE EXPECTED.

LAT...LON 4359 7565 4346 7567 4343 7554 4360 7512
      4388 7515

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:22 PM EDTSevere Thunderstorm WarningBUFNiagara68 min

Nearby

Severe Thunderstorm Warnings in New York, 2007Every 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.