Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS Buffalo, NY

April 26, 2008Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 26, 2008, 3:24 PM EDT for Monroe County, New York. It was in force for 48 min. 3 reports 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: Apr 26, 2008, 3:24 PM EDT (19:24 UTC)
Expired: Apr 26, 2008, 4:12 PM EDT
In force: 48 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 100 km from the middle of the area, began a volume at 19:24 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
Apr 26, 3:35 PM EDT	HAIL 0.75	Irondequoit, NY
Apr 26, 3:35 PM EDT	HAIL 1	Rochester, NY
Apr 26, 3:38 PM EDT	HAIL 0.75	Brighton, 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 12:00Z, 7.4 hours before the alert went out and 98 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: 681 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1264 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 6 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 261924
SVRBUF
NYC055-262030-
/O.NEW.KBUF.SV.W.0021.080426T1924Z-080426T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
324 PM EDT SAT APR 26 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 430 PM EDT

* AT 319 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
  GATES...AND MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GREECE BY 330 PM EDT...
  ROCHESTER BY 335 PM EDT...
  IRONDEQUOIT BY 340 PM EDT...
  WEBSTER BY 355 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 4326 7759 4326 7751 4329 7742 4329 7739
      4325 7738 4311 7738 4306 7782 4330 7792
      4335 7772
TIME...MOT...LOC 1924Z 242DEG 26KT 4315 7770

$$

HITCHCOCK

2 follow-up statements

000 
WWUS51 KBUF 261940
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
338 PM EDT SAT APR 26 2008

NYC055-262030-
/O.CON.KBUF.SV.W.0021.000000T0000Z-080426T2030Z/
MONROE NY-
338 PM EDT SAT APR 26 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHEASTERN MONROE COUNTY...

AT 334 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS 
LOCATED NEAR THE CITY OF ROCHESTER...MOVING NORTHEAST AT 35 MPH.

AT 335 PM EDT...TRAINED NATIONAL WEATHER SERVICE STORM SPOTTERS 
REPORTED QUARTER SIZE HAIL ON THE SOUTHEAST SIDE OF ROCHESTER AND 
NICKEL SIZED HAIL IN IRONDEQUOIT.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  EAST SIDE OF THE CITY OF ROCHESTER BY 340 PM EDT...
  IRONDEQUOIT BAY BY 345 PM EDT...
  WEBSTER BY 355 PM EDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4326 7759 4326 7751 4329 7742 4329 7739
      4311 7738 4308 7765 4332 7778 4335 7772
TIME...MOT...LOC 1938Z 242DEG 26KT 4320 7758

$$

HITCHCOCK

000 
WWUS51 KBUF 262012
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
412 PM EDT SAT APR 26 2008

NYC055-262022-
/O.CAN.KBUF.SV.W.0021.000000T0000Z-080426T2030Z/
MONROE NY-
412 PM EDT SAT APR 26 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONROE COUNTY IS
CANCELLED...

AT 412 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE 
THUNDERSTORM THAT PROMPTED THE WARNING HAD MOVED EAST OF THE 
AREA...THUS THE WARNING HAS BEEN CANCELLED.

NUMEROUS REPORTS OF NICKEL TO QUARTER SIZED HAIL WERE REPORTED ON 
THE SOUTHEAST AND EAST SIDE OF ROCHESTER FROM THIS STORM.

LAT...LON 4326 7759 4326 7751 4329 7742 4329 7739
      4311 7738 4308 7765 4332 7778 4335 7772
TIME...MOT...LOC 2012Z 242DEG 26KT 4331 7728

$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 3:16 PM EDT	Special Marine Warning	BUF		89 min
Apr 26, 3:48 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	45 min
Apr 26, 4:57 PM EDT	Special Marine Warning	BUF		63 min
Apr 26, 4:59 PM EDT	Areal Flood Advisory	BUF	Wayne	3 hr
Apr 26, 5:05 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	55 min
Apr 26, 5:14 PM EDT	Areal Flood Advisory	BUF	Ontario	2 hr
Apr 26, 5:31 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	37 min
Apr 26, 5:32 PM EDT	Areal Flood Advisory	BUF	Cayuga, Oswego	3 hr

Nearby

Severe Thunderstorm Warnings in New York, 2008 Every severe thunderstorm warning in 2008

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.