Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 113, NWS Buffalo, NY

September 28, 2007Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 28, 2007, 7:31 AM EDT for Erie County, New York. It was in force for 59 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
Sep 28, 2007, 7:31 AM EDT (11:31 UTC)
Expired
Sep 28, 2007, 8:30 AM EDT
In force
59 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Erie County, NY

The radar

The Buffalo radar (KBUF), 40 km from the middle of the area, began a volume at 11:32 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

TimeReportWhereRemark
Sep 28, 8:06 AM EDTHAIL 0.75Boston, NY

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, 11.5 hours before the alert went out and 38 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 00:00Z on 2007-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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 00:00Z on 2007-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939587897Sfc1 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
28 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
649 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
-70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 281131
SVRBUF
NYC029-281230-
/O.NEW.KBUF.SV.W.0113.070928T1131Z-070928T1230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
731 AM EDT FRI SEP 28 2007

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 830 AM EDT

* AT 728 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR LAKE ERIE BEACH...OR ABOUT 14 MILES
  NORTHEAST OF DUNKIRK...AND MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANGOLA BY 740 AM EDT...
  NORTH COLLINS BY 750 AM EDT...
  EDEN BY 800 AM EDT...
  BOSTON BY 825 AM EDT...
  COLDEN BY 830 AM EDT...

LAT...LON 4254 7849 4250 7885 4258 7916 4269 7904
      4269 7853
TIME...MOT...LOC 1131Z 266DEG 17KT 4259 7907

$$

LEVAN
4 follow-up statements
000 
WWUS51 KBUF 281146
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
745 AM EDT FRI SEP 28 2007

NYC029-281230-
/O.CON.KBUF.SV.W.0113.000000T0000Z-070928T1230Z/
ERIE NY-
745 AM EDT FRI SEP 28 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM EDT
FOR ERIE COUNTY...

AT 741 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE HAIL. 
THE STORMS WERE BETWEEN STURGEON POINT AND NORTH COLLINS...MOVING 
EAST AT 20 MPH.

THE SEVERE THUNDERSTORMS WILL BE NEAR...
  NORTH COLLINS BY 750 AM EDT...
  EDEN BY 800 AM EDT...
  NORTH BOSTON BY 815 AM EDT...
  BOSTON BY 825 AM EDT...
  COLDEN BY 830 AM EDT...

LAT...LON 4254 7849 4250 7885 4258 7916 4269 7904
      4269 7853
TIME...MOT...LOC 1145Z 266DEG 17KT 4259 7898

$$

LEVAN
000 
WWUS51 KBUF 281202
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
802 AM EDT FRI SEP 28 2007

NYC029-281230-
/O.CON.KBUF.SV.W.0113.000000T0000Z-070928T1230Z/
ERIE NY-
802 AM EDT FRI SEP 28 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM EDT
FOR ERIE COUNTY...

AT 758 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING PENNY SIZE HAIL.  THIS STORM WAS LOCATED NEAR BOSTON...OR
ABOUT 9 MILES SOUTH OF HAMBURG...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  EAST CONCORD BY 810 AM EDT...
  HOLLAND BY 820 AM EDT...

LAT...LON 4263 7852 4262 7851 4257 7851 4256 7849
      4254 7849 4250 7885 4269 7886 4269 7852
TIME...MOT...LOC 1202Z 273DEG 28KT 4260 7874

$$

LEVAN
000 
WWUS51 KBUF 281218
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
815 AM EDT FRI SEP 28 2007

NYC029-281230-
/O.CON.KBUF.SV.W.0113.000000T0000Z-070928T1230Z/
ERIE NY-
815 AM EDT FRI SEP 28 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM EDT
FOR ERIE COUNTY...

AT 811 AM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY 
SIZE HAIL WAS LOCATED OVER SOUTHEAST ERIE COUNTY...ABOUT 12 MILES 
SOUTH OF EAST AURORA...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHAFFEE BY 830 AM...

LAT...LON 4263 7851 4256 7851 4255 7849 4255 7850
      4257 7869 4263 7868
TIME...MOT...LOC 1215Z 273DEG 28KT 4259 7860

$$

LEVAN
000 
WWUS51 KBUF 281231
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
830 AM EDT FRI SEP 28 2007

NYC029-281240-
/O.EXP.KBUF.SV.W.0113.000000T0000Z-070928T1230Z/
ERIE NY-
830 AM EDT FRI SEP 28 2007

...THE SEVERE THUNDERSTORM WARNING FOR ERIE COUNTY EXPIRES AT 830 AM
EDT...

AT 830 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED THE 
WARNED AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4263 7851 4256 7851 4255 7849 4255 7850
      4257 7869 4263 7868
TIME...MOT...LOC 1218Z 273DEG 28KT 4259 7857

$$

LEVAN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 6:45 AM EDTSpecial Marine WarningBUF30 min
Sep 28, 7:15 AM EDTSpecial Marine WarningBUF30 min
Sep 28, 4:55 PM EDTSpecial Marine WarningBUF31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.