Alert archive / Massachusetts / Wind Advisories in 2021
Wind Advisory 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this wind advisory at Mar 17, 2021, 3:46 PM EDT for 5 counties in Massachusetts; Washington County, Rhode Island. It took effect at Mar 19, 2021, 2:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Mar 17, 2021, 3:46 PM EDT (19:46 UTC)
- In effect from
- Mar 19, 2021, 2:00 AM EDT
- Expired
- Mar 19, 2021, 10:58 AM EDT
- In force
- 9 hr
- Issued by
- NWS Boston/Norton, MA
Counties Barnstable County, MA, Dukes County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Washington County, RI
The radar
The Boston radar (KBOX), 46 km from the middle of the area, began a volume at 19:46 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 12:00Z, 7.8 hours before the alert went out and 65 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 971 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
421 WWUS71 KBOX 171946 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 346 PM EDT Wed Mar 17 2021 MAZ019-022>024-RIZ008-180900- /O.NEW.KBOX.WI.Y.0009.210319T0600Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket, and New Shoreham 346 PM EDT Wed Mar 17 2021 ...WIND ADVISORY IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Massachusetts, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. In Rhode Island, Block Island RI County. * WHEN...From 2 AM to 11 AM EDT Friday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
5 follow-up statements
779 WWUS71 KBOX 180633 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 233 AM EDT Thu Mar 18 2021 MAZ024-181945- /O.UPG.KBOX.WI.Y.0009.210319T0600Z-210319T1500Z/ /O.NEW.KBOX.HW.W.0002.210319T0600Z-210319T1500Z/ Nantucket MA- Including the city of Nantucket 233 AM EDT Thu Mar 18 2021 ...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... * WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Nantucket MA County. * WHEN...From 2 AM to 11 AM EDT Friday. * IMPACTS...Damaging winds will result in some tree and power line damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ MAZ019-022-023-RIZ008-181945- /O.CON.KBOX.WI.Y.0009.210319T0600Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, and New Shoreham 233 AM EDT Thu Mar 18 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...In Massachusetts, Eastern Plymouth MA, Barnstable MA and Dukes MA Counties. In Rhode Island, Block Island RI County. * WHEN...From 2 AM to 11 AM EDT Friday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
018 WWUS71 KBOX 182012 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 412 PM EDT Thu Mar 18 2021 MAZ024-190915- /O.CON.KBOX.HW.W.0002.210319T0600Z-210319T1500Z/ Nantucket MA- Including the city of Nantucket 412 PM EDT Thu Mar 18 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... * WHAT...North winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Nantucket MA County. * WHEN...From 2 AM to 11 AM EDT Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ MAZ019-022-023-RIZ008-190915- /O.CON.KBOX.WI.Y.0009.210319T0600Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, and New Shoreham 412 PM EDT Thu Mar 18 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... * WHAT...North winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...In Massachusetts, Eastern Plymouth MA, Barnstable MA and Dukes MA Counties. In Rhode Island, Block Island RI County. * WHEN...From 2 AM to 11 AM EDT Friday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
669 WWUS71 KBOX 190743 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 343 AM EDT Fri Mar 19 2021 MAZ024-191500- /O.CON.KBOX.HW.W.0002.000000T0000Z-210319T1500Z/ Nantucket MA- Including the city of Nantucket 343 AM EDT Fri Mar 19 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...North winds 30 to 40 mph with gusts up to 55 mph. * WHERE...Nantucket MA County. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Strong winds may result in some tree and power line damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ MAZ019-022-023-RIZ008-191500- /O.CON.KBOX.WI.Y.0009.000000T0000Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, and New Shoreham 343 AM EDT Fri Mar 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...North winds 25 to 35 mph with gusts up to 50 mph. * WHERE...In Massachusetts, Eastern Plymouth MA, Barnstable MA and Dukes MA Counties. In Rhode Island, Block Island RI County. * WHEN...Until 11 AM EDT this morning. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
305 WWUS71 KBOX 191036 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 636 AM EDT Fri Mar 19 2021 MAZ024-191500- /O.CAN.KBOX.HW.W.0002.000000T0000Z-210319T1500Z/ /O.EXA.KBOX.WI.Y.0009.000000T0000Z-210319T1500Z/ Nantucket MA- Including the city of Nantucket 636 AM EDT Fri Mar 19 2021 ...WIND ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...HIGH WIND WARNING IS CANCELLED... * WHAT...North winds 30 to 35 mph with gusts up to 45 mph. * WHERE...Nantucket. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MAZ019-022-023-RIZ008-191500- /O.CON.KBOX.WI.Y.0009.000000T0000Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, and New Shoreham 636 AM EDT Fri Mar 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...North winds 20 to 30 mph with gusts up to 40 mph. * WHERE...Coastal Plymouth County, Cape Cod, Marthas Vineyard, and Block Island. * WHEN...Until 11 AM EDT this morning. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
711 WWUS71 KBOX 191458 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1058 AM EDT Fri Mar 19 2021 MAZ019-022>024-RIZ008-191600- /O.CAN.KBOX.WI.Y.0009.000000T0000Z-210319T1500Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Block Island RI- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket, and New Shoreham 1058 AM EDT Fri Mar 19 2021 ...WIND ADVISORY IS CANCELLED... Winds have diminished below advisory criteria, therefore the advisory has been cancelled. $$ 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:35 AM EDT | Gale Watch | BOX | 12 hr | |
| Mar 17, 3:45 PM EDT | Gale Warning | BOX | 49 hr |
Nearby
Wind Advisories in Massachusetts, 2021Wind Advisories in Rhode Island, 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.