Alert archive / Massachusetts / Wind Advisories in 2018

Wind Advisory 36, NWS Boston/Norton, MA

December 28, 2018Nantucket County, Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Dec 28, 2018, 3:46 AM EST for Nantucket County, Massachusetts. It took effect at Dec 28, 2018, 1:00 PM EST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Dec 28, 2018, 3:46 AM EST (08:46 UTC)
In effect from
Dec 28, 2018, 1:00 PM EST
Expired
Dec 28, 2018, 7:06 PM EST
In force
6 hr
Issued by
NWS Boston/Norton, MA

County Nantucket County, MA

The radar

The Boston radar (KBOX), 120 km from the middle of the area, began a volume at 08:47 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

Chatham, MA (KCHH), launched 00:00Z, 8.8 hours before the alert went out and 45 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, Chatham, MA at 00:00Z on 2018-12-28Temperature 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, Chatham, MA at 00:00Z on 2018-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939587897117Sfc1 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
776 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

836 
WWUS71 KBOX 280846
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
346 AM EST Fri Dec 28 2018

MAZ024-281700-
/O.NEW.KBOX.WI.Y.0036.181228T1800Z-181229T0300Z/
Nantucket MA-
Including the city of Nantucket
346 AM EST Fri Dec 28 2018

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM EST
THIS EVENING...

The National Weather Service in Boston/Norton has issued a Wind
Advisory, which is in effect from 1 PM this afternoon to 10 PM
EST this evening.

* WINDS...South 20 to 30 mph with a few gusts between 40 and 50
  mph.

* TIMING...This afternoon into this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* LOCATION...Nantucket.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 31 to 39 mph are
expected, with gusts between 46 to 57 mph. Winds this strong are
capable of downing small tree limbs and branches, possibly
causing isolated power outages. Driving can also be difficult,
especially for high profile vehicles. Use extra caution.

&&

$$

Frank

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
2 follow-up statements
910 
WWUS71 KBOX 281604
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1104 AM EST Fri Dec 28 2018

MAZ024-290015-
/O.CON.KBOX.WI.Y.0036.181228T1800Z-181229T0300Z/
Nantucket MA-
Including the city of Nantucket
1104 AM EST Fri Dec 28 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...

* WINDS...South 20 to 30 mph with gusts up to 50 mph.

* TIMING...This afternoon into this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* LOCATION...Nantucket.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 31 to 39 mph are
expected, with gusts between 46 to 57 mph. Winds this strong are
capable of downing small tree limbs and branches, possibly
causing isolated power outages. Driving can also be difficult,
especially for high profile vehicles. Use extra caution.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
326 
WWUS71 KBOX 290006
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
706 PM EST Fri Dec 28 2018

MAZ024-290115-
/O.CAN.KBOX.WI.Y.0036.000000T0000Z-181229T0300Z/
Nantucket MA-
Including the city of Nantucket
706 PM EST Fri Dec 28 2018

...WIND ADVISORY FOR NANTUCKET IS CANCELLED...

The National Weather Service in Boston/Norton has cancelled the
Wind Advisory for Nantucket.

Although winds will gust to 30 to 35 mph this evening, the threat
of wind gusts to 50 mph has diminished. 

$$
Field

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

Nearby

Wind Advisories in Massachusetts, 2018Every wind advisory in 2018

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.