Alert archive / Vermont / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 13, NWS Albany, NY

May 28, 2015Windham County, Vermont

NWS Albany, NY issued this severe thunderstorm warning at May 28, 2015, 2:36 PM EDT for Windham County, Vermont. It was in force for 24 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, 2015, 2:36 PM EDT (18:36 UTC)
Expired: May 28, 2015, 3:00 PM EDT
In force: 24 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Windham County, VT

The radar

The Albany radar (KENX), 125 km from the middle of the area, began a volume at 18:39 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, 2:50 PM EDT	HAIL 1	Vernon, VT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.6 hours before the alert went out and 104 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: 153 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 670 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

259 
WUUS51 KALY 281836
SVRALY
VTC025-281900-
/O.NEW.KALY.SV.W.0013.150528T1836Z-150528T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALBANY NY
236 PM EDT THU MAY 28 2015

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN WINDHAM COUNTY IN SOUTHERN VERMONT...

* UNTIL 300 PM EDT

* AT 236 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GUILFORD
  CENTER...OR NEAR BRATTLEBORO...MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  BRATTLEBORO AND VERNON AROUND 245 PM EDT.
  HINSDALE AROUND 255 PM EDT.
  CHESTERFIELD AROUND 300 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE GROVE...
DUMMERSTON CENTER...NAULAHKA...GUILFORD...EAST DUMMERSTON...AMES
HILL...WEST DUMMERSTON...HARRISVILLE...WEST GUILFORD AND GREEN RIVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

PLEASE REPORT HAIL SIZE...DAMAGING WINDS AND REPORTS OF TREES DOWN TO
THE NATIONAL WEATHER SERVICE BY EMAIL AT ALB.STORMREPORT@NOAA.GOV...
ON FACEBOOK AT WWW.FACEBOOK.COM/NWSALBANY OR TWITTER @NWSALBANY.
&&

LAT...LON 4273 7271 4288 7277 4295 7253 4292 7252
      4290 7253 4288 7255 4285 7256 4284 7255
      4281 7254 4277 7252 4276 7251 4277 7249
      4273 7246
TIME...MOT...LOC 1836Z 255DEG 24KT 4281 7264 

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

TAW/LFM

1 follow-up statement

380 
WWUS51 KALY 281907
SVSALY

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
307 PM EDT THU MAY 28 2015

VTC025-281917-
/O.EXP.KALY.SV.W.0013.000000T0000Z-150528T1900Z/
WINDHAM VT-
307 PM EDT THU MAY 28 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WINDHAM COUNTY
HAS EXPIRED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHERN VERMONT.

LAT...LON 4273 7271 4288 7277 4295 7253 4292 7252
      4290 7253 4288 7255 4285 7256 4284 7255
      4281 7254 4277 7252 4276 7251 4277 7249
      4273 7246
TIME...MOT...LOC 1904Z 255DEG 24KT 4281 7264 

$$


TAW/LFM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 2:19 PM EDT	Special Weather Statement	ALY	Windham	26 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2015 Every severe thunderstorm warning in 2015

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.