Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 33, NWS Buffalo, NY

May 28, 2017Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 28, 2017, 7:00 PM EDT for Erie County, New York. It was in force for 45 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: May 28, 2017, 7:00 PM EDT (23:00 UTC)
Expired: May 28, 2017, 7:45 PM EDT
In force: 45 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Erie County, NY

The radar

The Buffalo radar (KBUF), 42 km from the middle of the area, began a volume at 22:59 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, 7:09 PM EDT	HAIL 1	1 Ne North Collins, 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, 11.0 hours before the alert went out and 41 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.

712 
WUUS51 KBUF 282300
SVRBUF
NYC029-282345-
/O.NEW.KBUF.SV.W.0033.170528T2300Z-170528T2345Z/

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

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southwestern Erie County in western New York...

* Until 745 PM EDT.

* At 700 PM EDT, a severe thunderstorm was located near North
  Collins, or 13 miles southwest of Hamburg, moving northeast at 20
  mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Hamburg, Boston, Eden, North Collins, North Boston and Langford. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4255 7903 4274 7885 4262 7867 4249 7894
TIME...MOT...LOC 2300Z 225DEG 18KT 4255 7896 

HAIL...1.00IN
WIND...60MPH
 
$$

Apffel

3 follow-up statements

951 
WWUS51 KBUF 282307
SVSBUF

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

NYC029-282345-
/O.CON.KBUF.SV.W.0033.000000T0000Z-170528T2345Z/
Erie NY-
707 PM EDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTH CENTRAL ERIE COUNTY...

At 707 PM EDT, a severe thunderstorm was located over North Collins,
or 11 miles southwest of Hamburg, 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...
Hamburg, Boston, Eden, North Collins, North Boston and Langford. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4259 7898 4274 7885 4262 7867 4253 7889
TIME...MOT...LOC 2307Z 225DEG 18KT 4258 7892 

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

Apffel

261 
WWUS51 KBUF 282321
SVSBUF

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

NYC029-282345-
/O.CON.KBUF.SV.W.0033.000000T0000Z-170528T2345Z/
Erie NY-
721 PM EDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTH CENTRAL ERIE COUNTY...

At 721 PM EDT, a severe thunderstorm was located over Eden, or near
Hamburg, moving northeast at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Hamburg, Boston, Eden, North Boston and Langford. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4264 7892 4273 7883 4262 7867 4257 7882
TIME...MOT...LOC 2321Z 225DEG 18KT 4263 7885 

HAIL...1.00IN
WIND...60MPH
 
$$

Apffel

726 
WWUS51 KBUF 282339
SVSBUF

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

NYC029-282347-
/O.EXP.KBUF.SV.W.0033.000000T0000Z-170528T2345Z/
Erie NY-
739 PM EDT SUN MAY 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ERIE COUNTY WILL
EXPIRE AT 745 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore the warning will be
allowed to expire.

LAT...LON 4264 7892 4273 7883 4262 7867 4257 7882
TIME...MOT...LOC 2337Z 225DEG 18KT 4268 7879 

$$

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, 6:11 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	49 min
May 28, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	47 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.