Alert archive / Massachusetts / Wind Advisories in 2021

Wind Advisory 15, NWS Boston/Norton, MA

September 1, 20215 counties in Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Sep 1, 2021, 4:00 PM EDT for 5 counties in Massachusetts. It took effect at Sep 2, 2021, 3:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Sep 1, 2021, 4:00 PM EDT (20:00 UTC)
In effect from
Sep 2, 2021, 3:00 AM EDT
Expired
Sep 2, 2021, 10:43 AM EDT
In force
8 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Essex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA

The radar

The Boston radar (KBOX), 35 km from the middle of the area, began a volume at 20:02 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

Gray, ME (KGYX), launched 12:00Z, 8.0 hours before the alert went out and 197 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, Gray, ME at 12:00Z on 2021-09-01Temperature 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, Gray, ME at 12:00Z on 2021-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
1379 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

730 
WWUS71 KBOX 012000
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
400 PM EDT Wed Sep 1 2021

MAZ007-015-016-019-022-020900-
/O.NEW.KBOX.WI.Y.0015.210902T0700Z-210902T1700Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-
Including the cities of Gloucester, Boston, Quincy, Plymouth, 
Chatham, Falmouth, and Provincetown
400 PM EDT Wed Sep 1 2021

...WIND ADVISORY IN EFFECT FROM 3 AM TO 1 PM EDT THURSDAY...

* WHAT...North to Northeast winds 20 to 30 mph with gusts up to 
  40 mph expected.

* WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, 
  Eastern Plymouth MA and Barnstable MA Counties.

* WHEN...From 3 AM to 1 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  These wind speeds are less than typical wind advisory criteria,
  however given fully leaved trees and saturated ground, the
  threshold may be lower for wind and tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/box
2 follow-up statements
267 
WWUS71 KBOX 020758
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
358 AM EDT Thu Sep 2 2021

MAZ007-015-016-019-022-021700-
/O.CON.KBOX.WI.Y.0015.000000T0000Z-210902T1700Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-
Including the cities of Gloucester, Boston, Quincy, Plymouth, 
Chatham, Falmouth, and Provincetown
358 AM EDT Thu Sep 2 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM EDT THIS
AFTERNOON...

* WHAT...North winds 15 to 25 mph with gusts up to 45 mph.

* WHERE...Suffolk MA, Eastern Essex MA, Barnstable MA, Eastern 
  Norfolk MA and Eastern Plymouth MA Counties.

* WHEN...Until 1 PM EDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/box
949 
WWUS71 KBOX 021443
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1043 AM EDT Thu Sep 2 2021

MAZ007-015-016-019-022-021545-
/O.CAN.KBOX.WI.Y.0015.000000T0000Z-210902T1700Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-
Including the cities of Gloucester, Boston, Quincy, Plymouth, 
Chatham, Falmouth, and Provincetown
1043 AM EDT Thu Sep 2 2021

...WIND ADVISORY IS CANCELLED...

Winds will continue to diminish this afternoon as the remnants of
Ida moves farther offshore.

$$

For more information from the National Weather Service visit
https://weather.gov/box

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 3:26 AM EDTGale WatchBOX31 hr
Sep 1, 3:26 AM EDTGale WarningBOX35 hr
Sep 1, 2:34 PM EDTSpecial Marine WarningBOX56 min
Sep 1, 3:29 PM EDTSpecial Marine WarningBOX61 min
Sep 1, 4:13 PM EDTSpecial Marine WarningBOX62 min
Sep 1, 4:52 PM EDTSevere Thunderstorm WarningBOXNantucket38 min
Sep 1, 5:10 PM EDTSpecial Marine WarningBOX65 min
Sep 1, 5:49 PM EDTSpecial Weather StatementBOXNantucket41 min
Sep 1, 6:09 PM EDTSpecial Marine WarningBOX66 min

Nearby

Wind Advisories in Massachusetts, 2021Every wind advisory in 2021

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.