Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 90, NWS Buffalo, NY

August 16, 2007Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 16, 2007, 4:47 PM EDT for Monroe County, New York. It was in force for 28 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 16, 2007, 4:47 PM EDT (20:47 UTC)
Expired
Aug 16, 2007, 5:15 PM EDT
In force
28 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 20:49 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.8 hours before the alert went out and 86 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 12:00Z on 2007-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 571 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2007-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 square meters per square second.1939587897117Sfc1 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
571 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
893 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
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 162047
SVRBUF
NYC055-162115-
/O.NEW.KBUF.SV.W.0090.070816T2047Z-070816T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
447 PM EDT THU AUG 16 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTHERN MONROE COUNTY IN WESTERN NEW YORK

* UNTIL 515 PM EDT

* AT 444 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 NEAR
  SCOTTSVILLE...OR ABOUT 13 MILES SOUTHWEST OF BRIGHTON...AND MOVING
  EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HONEOYE FALLS BY 500 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 4294 7749 4294 7762 4294 7763 4295 7775
      4298 7772 4299 7779 4302 7778 4303 7749
TIME...MOT...LOC 2047Z 281DEG 30KT 4298 7772

$$

HITCHCOCK
2 follow-up statements
000 
WWUS51 KBUF 162100
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
459 PM EDT THU AUG 16 2007

NYC055-162115-
/O.CON.KBUF.SV.W.0090.000000T0000Z-070816T2115Z/
MONROE NY-
459 PM EDT THU AUG 16 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT 
FOR EXTREME SOUTHERN MONROE COUNTY...

AT 457 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 HONEOYE FALLS...OR ABOUT 11 MILES SOUTH OF BRIGHTON...
MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HONEOYE FALLS THROUGH 510 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 4300 7749 4299 7750 4298 7749 4294 7749
      4294 7763 4295 7764 4302 7760 4303 7749
TIME...MOT...LOC 2059Z 281DEG 30KT 4296 7759

$$

HITCHCOCK
000 
WWUS51 KBUF 162111
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
511 PM EDT THU AUG 16 2007

NYC055-162121-
/O.EXP.KBUF.SV.W.0090.000000T0000Z-070816T2115Z/
MONROE NY-
511 PM EDT THU AUG 16 2007

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

AT 511 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

PLEASE REPORT SEVERE WEATHER TO LAW ENFORCEMENT FOR RELAY TO THE 
NATIONAL WEATHER SERVICE IN BUFFALO.

LAT...LON 4300 7749 4299 7750 4298 7749 4294 7749
      4294 7763 4295 7764 4302 7760 4303 7749
TIME...MOT...LOC 2111Z 281DEG 30KT 4294 7746

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 2:27 PM EDTSpecial Marine WarningBUF63 min
Aug 16, 2:49 PM EDTSpecial Marine WarningBUF41 min
Aug 16, 4:00 PM EDTSevere Thunderstorm WarningBUFGenesee45 min
Aug 16, 4:38 PM EDTSevere Thunderstorm WarningBUFLivingston37 min
Aug 16, 4:55 PM EDTSevere Thunderstorm WarningBUFOntario54 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; radar from the NEXRAD Level II archive.