Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 32, NWS Buffalo, NY

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

NWS Buffalo, NY issued this severe thunderstorm warning at May 28, 2017, 6:28 PM EDT for Cattaraugus County, Erie County, Wyoming County, New York. It was in force for 47 min. 2 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, 6:28 PM EDT (22:28 UTC)
Expired
May 28, 2017, 7:15 PM EDT
In force
47 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cattaraugus County, NY, Erie County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 57 km from the middle of the area, began a volume at 22:28 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
May 28, 6:51 PM EDTHAIL 1Delevan, NY
May 28, 6:55 PM EDTHAIL 2Sardinia, NYSPOTTER REPORT WITH PICTURES OF 2 INCH HAIL NEAR ROUTE 39 AND 16 IN SARDINA

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, 10.5 hours before the alert went out and 54 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 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.19395878Sfc1 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
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.

248 
WUUS51 KBUF 282228
SVRBUF
NYC009-029-121-282315-
/O.NEW.KBUF.SV.W.0032.170528T2228Z-170528T2315Z/

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

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southwestern Wyoming County in western New York...
  Northeastern Cattaraugus County in western New York...
  Southeastern Erie County in western New York...

* Until 715 PM EDT.

* At 627 PM EDT, a severe thunderstorm was located over Ashford
  Hollow, or 17 miles north of Salamanca, moving northeast at 25 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...
  Arcade, Chaffee, Yorkshire, Holland, Sardinia, Delevan, West Valley
  and Lime Lake-Machias.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4235 7859 4242 7870 4265 7852 4251 7832
TIME...MOT...LOC 2227Z 220DEG 21KT 4242 7864 

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

Apffel
2 follow-up statements
763 
WWUS51 KBUF 282252
SVSBUF

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

NYC009-029-121-282315-
/O.CON.KBUF.SV.W.0032.000000T0000Z-170528T2315Z/
Wyoming NY-Cattaraugus NY-Erie NY-
652 PM EDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHWESTERN WYOMING...NORTHEASTERN CATTARAUGUS AND SOUTHEASTERN
ERIE COUNTIES...

At 652 PM EDT, a severe thunderstorm was located over Chaffee, or 17
miles south of East Aurora, moving northeast at 25 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...
Arcade, Chaffee, Yorkshire, Holland, Sardinia, Delevan and Sandusky. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4245 7847 4252 7856 4265 7852 4251 7832
TIME...MOT...LOC 2252Z 220DEG 21KT 4253 7851 

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

Apffel
857 
WWUS51 KBUF 282311
SVSBUF

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

NYC009-029-121-282321-
/O.EXP.KBUF.SV.W.0032.000000T0000Z-170528T2315Z/
Wyoming NY-Cattaraugus NY-Erie NY-
711 PM EDT SUN MAY 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WYOMING...
NORTHEASTERN CATTARAUGUS AND SOUTHEASTERN ERIE COUNTIES WILL EXPIRE
AT 715 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.

LAT...LON 4245 7847 4252 7856 4265 7852 4251 7832
TIME...MOT...LOC 2311Z 220DEG 21KT 4261 7841 

$$

Apffel

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 3:57 PM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua78 min
May 28, 5:26 PM EDTSpecial Weather StatementBUFCattaraugus34 min
May 28, 6:05 PM EDTSpecial Weather StatementBUFCattaraugus55 min
May 28, 6:11 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie49 min
May 28, 7:00 PM EDTSevere Thunderstorm WarningBUFErie45 min

Nearby

Severe Thunderstorm Warnings in New York, 2017Every 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.