Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 31, NWS Buffalo, NY

May 28, 2017Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 28, 2017, 6:11 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 49 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: May 28, 2017, 6:11 PM EDT (22:11 UTC)
Expired: May 28, 2017, 7:00 PM EDT
In force: 49 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 67 km from the middle of the area, began a volume at 22:12 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	Remark
May 28, 6:24 PM EDT	HAIL 2	2 Se Forestville, NY
May 28, 6:29 PM EDT	HAIL 1.75	1 Nne Forestville, NY
May 28, 6:45 PM EDT	HAIL 1.75	Perrysburg, NY	REPORT RELAYED BY WKBW MET

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, 10.2 hours before the alert went out and 67 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

026 
WUUS51 KBUF 282211
SVRBUF
NYC009-013-029-282300-
/O.NEW.KBUF.SV.W.0031.170528T2211Z-170528T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
611 PM EDT SUN MAY 28 2017

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cattaraugus County in western New York...
  Southwestern Erie County in western New York...
  Northeastern Chautauqua County in western New York...

* Until 700 PM EDT.

* At 611 PM EDT, a severe thunderstorm was located near Fredonia,
  moving northeast at 20 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to trees and power lines. 

* Locations impacted include...
  Gowanda, Silver Creek, Evangola State Park, Collins, Sheridan,
  Dayton, Arkwright and Forestville.

This includes Interstate 90 near exit 58.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4230 7918 4239 7933 4263 7910 4248 7886
TIME...MOT...LOC 2211Z 221DEG 19KT 4239 7922 

HAIL...1.25IN
WIND...60MPH
 
$$

Apffel

3 follow-up statements

777 
WWUS51 KBUF 282218
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
618 PM EDT SUN MAY 28 2017

NYC009-013-029-282300-
/O.CON.KBUF.SV.W.0031.000000T0000Z-170528T2300Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
618 PM EDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHWESTERN CATTARAUGUS...SOUTHWESTERN ERIE AND NORTHEASTERN
CHAUTAUQUA COUNTIES...

At 617 PM EDT, a severe thunderstorm was located 8 miles east of
Fredonia, moving northeast at 20 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines. 

Locations impacted include...
Gowanda, Silver Creek, Evangola State Park, Collins, Dayton,
Arkwright, Forestville and South Dayton.

This includes Interstate 90 near exit 58.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4241 7929 4263 7910 4248 7886 4232 7914
TIME...MOT...LOC 2217Z 225DEG 19KT 4240 7917 

HAIL...1.75IN
WIND...60MPH
 
$$

Apffel

490 
WWUS51 KBUF 282230
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
630 PM EDT SUN MAY 28 2017

NYC009-013-029-282300-
/O.CON.KBUF.SV.W.0031.000000T0000Z-170528T2300Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
630 PM EDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHWESTERN CATTARAUGUS...SOUTHWESTERN ERIE AND NORTHEASTERN
CHAUTAUQUA COUNTIES...

At 630 PM EDT, a severe thunderstorm was located 7 miles southeast of
Silver Creek, or 11 miles east of Fredonia, moving northeast at 20
mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines. 

Locations impacted include...
Gowanda, Collins, Forestville, Perrysburg, Versailles and Silver
Creek Reservoir.

This includes Interstate 90 near exit 58.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4244 7920 4261 7907 4248 7886 4237 7908
TIME...MOT...LOC 2230Z 221DEG 19KT 4245 7911 

HAIL...1.75IN
WIND...60MPH
 
$$

Apffel

512 
WWUS51 KBUF 282301
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
701 PM EDT SUN MAY 28 2017

NYC009-013-029-282310-
/O.EXP.KBUF.SV.W.0031.000000T0000Z-170528T2300Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
701 PM EDT SUN MAY 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CATTARAUGUS...
SOUTHWESTERN ERIE AND NORTHEASTERN CHAUTAUQUA COUNTIES HAS EXPIRED...
    
The severe thunderstorm which prompted the warning has been replaced 
by another warning. Therefore, the warning has been allowed to 
expire.

LAT...LON 4244 7920 4261 7907 4248 7886 4237 7908
TIME...MOT...LOC 2300Z 221DEG 19KT 4257 7897 

$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 3:57 PM EDT	Special Weather Statement	BUF	Cattaraugus, Chautauqua	78 min
May 28, 5:26 PM EDT	Special Weather Statement	BUF	Cattaraugus	34 min
May 28, 6:05 PM EDT	Special Weather Statement	BUF	Cattaraugus	55 min
May 28, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	47 min
May 28, 7:00 PM EDT	Severe Thunderstorm Warning	BUF	Erie	45 min

Nearby

Severe Thunderstorm Warnings in New York, 2017 Every severe thunderstorm warning in 2017

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.