Alert archive / Vermont / Special Weather Statements in 2011

Special Weather Statement, NWS Burlington, VT

June 18, 2011Chittenden County, Vermont

NWS Burlington, VT issued this special weather statement at Jun 18, 2011, 1:06 PM EDT for Chittenden County, Vermont. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 18, 2011, 1:06 PM EDT (17:06 UTC)
Expired
Jun 18, 2011, 2:00 PM EDT
In force
54 min
Issued by
NWS Burlington, VT

County Chittenden County, VT

The radar

The Burlington radar (KCXX), 20 km from the middle of the area, began a volume at 17:07 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.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.1 hours before the alert went out and 224 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, Albany, NY at 12:00Z on 2011-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2011-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897Sfc1 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
11 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
100 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Burlington, VT wrote its last area forecast discussion before this special weather statement went out at Jun 18, 12:39 PM EDT, 27 minutes earlier.

Area forecast discussion, Jun 18, 12:39 PM EDT, 27 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Jun 18, 4:36 AM EDT, 8 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
436 AM EDT SAT JUN 18 2011

NYZ026>031-034-035-087-VTZ001>012-016>019-190845-
NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-EASTERN CLINTON-
SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON-
WESTERN ESSEX-EASTERN ESSEX-SOUTHWESTERN ST. LAWRENCE-GRAND ISLE-
WESTERN FRANKLIN-ORLEANS-ESSEX-WESTERN CHITTENDEN-LAMOILLE-CALEDONIA-
WASHINGTON-WESTERN ADDISON-ORANGE-WESTERN RUTLAND-WINDSOR-
EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND-
436 AM EDT SAT JUN 18 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL
VERMONT...NORTHEAST VERMONT...NORTHWEST VERMONT AND SOUTHERN
VERMONT.

.DAY ONE...TODAY AND TONIGHT.

A FEW THUNDERSTORMS ARE POSSIBLE TODAY AS A COLD FRONT MOVES SOUTH
ACROSS THE AREA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jun 18, 1:06 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
106 PM EDT SAT JUN 18 2011

VTZ001-002-005-006-016-017-181800-
EASTERN CHITTENDEN VT-EASTERN FRANKLIN VT-GRAND ISLE VT-LAMOILLE VT-
WESTERN CHITTENDEN VT-WESTERN FRANKLIN VT-
106 PM EDT SAT JUN 18 2011

...A STRONG THUNDERSTORM WILL AFFECT THE CHAMPLAIN VALLEY OF
VERMONT...

AT 1257 PM EDT...A STRONG THUNDERSTORM WAS NEAR GEORGIA IN SOUTHERN
FRANKLIN COUNTY VERMONT...MOVING SOUTHEAST AT 20 MPH.

WIND GUSTS TO 40 MPH AND VERY HEAVY RAIN ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL BE NEAR...
  MILTON...AND FAIRFAX AROUND 110 PM EDT...
  WESTFORD...AND FLETCHER AROUND 120 PM EDT...
  NORTH UNDERHILL...AND CLOVERDALE AROUND 130 PM EDT...
  UNDERHILL...AND PLEASANT VALLEY AROUND 140 PM EDT...
  UNDERHILL STATE PARK...AND UNDERHILL CENTER AROUND 150 PM EDT...
  WEST BOLTON AROUND 200 PM EDT...

GET TO SAFETY IMMEDIATELY WHEN THREATENING WEATHER APPROACHES.

LAT...LON 4459 7273 4437 7291 4466 7327 4480 7310

BOYD/EVENSON

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 1:24 PM EDTSpecial Weather StatementBTVLamoille51 min
Jun 18, 1:26 PM EDTSpecial Weather StatementBTVFranklin, Orleans64 min
Jun 18, 1:41 PM EDTSevere Thunderstorm WarningBTVFranklin, Lamoille, Orleans64 min
Jun 18, 1:46 PM EDTSevere Thunderstorm WarningBTVCaledonia, Chittenden, Lamoille, Orange, Washington59 min
Jun 18, 1:52 PM EDTSpecial Weather StatementBTVRutland53 min
Jun 18, 2:30 PM EDTSevere Thunderstorm WarningBTVAddison, Rutland, Windsor60 min
Jun 18, 2:46 PM EDTSpecial Weather StatementBTVEssex59 min
Jun 18, 2:50 PM EDTSpecial Weather StatementBTVOrange, Washington55 min
Jun 18, 3:36 PM EDTSpecial Weather StatementBTVWindsor54 min

Nearby

Special Weather Statements in Vermont, 2011Every special weather statement in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.