Alert archive / Massachusetts / High Wind Warnings in 2020
High Wind Warning 5, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this high wind warning at Sep 22, 2020, 3:05 AM EDT for Nantucket County, Massachusetts. It took effect at Sep 22, 2020, 7:00 AM EDT. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 22, 2020, 3:05 AM EDT (07:05 UTC)
- In effect from
- Sep 22, 2020, 7:00 AM EDT
- Expired
- Sep 22, 2020, 6:44 PM EDT
- In force
- 12 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 07:09 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, 7.1 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1445 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
128 WWUS71 KBOX 220705 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 305 AM EDT Tue Sep 22 2020 MAZ024-221515- /O.UPG.KBOX.WI.Y.0019.200922T1000Z-200923T0300Z/ /O.NEW.KBOX.HW.W.0005.200922T1100Z-200923T0300Z/ Nantucket MA- Including the city of Nantucket 305 AM EDT Tue Sep 22 2020 ...HIGH WIND WARNING IN EFFECT FROM 7 AM THIS MORNING TO 11 PM EDT THIS EVENING... * WHAT...North winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Nantucket MA County. * WHEN...From 7 AM this morning to 11 PM EDT this evening. Strongest of the winds expected during the afternoon. * IMPACTS...Damaging winds may result in some downed trees and power lines. Scattered 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. && $$ MAZ019-021-221515- /O.EXB.KBOX.WI.Y.0019.200922T1300Z-200922T2200Z/ Eastern Plymouth MA-Southern Plymouth MA- Including the cities of Plymouth and Mattapoisett 305 AM EDT Tue Sep 22 2020 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts between 40 and 50 mph expected. * WHERE...Eastern Plymouth MA and Southern Plymouth MA Counties. * WHEN...From 9 AM this morning to 6 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CTZ002>004-MAZ004>006-009-012-013-017-221200- /O.CON.KBOX.FR.Y.0007.000000T0000Z-200922T1200Z/ Hartford CT-Tolland CT-Windham CT-Northern Worcester MA- Central Middlesex MA-Western Essex MA-Western Hampden MA- Southern Worcester MA-Western Norfolk MA-Northern Bristol MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Putnam, Willimantic, Barre, Fitchburg, Framingham, Lowell, Lawrence, Blandford, Milford, Worcester, Foxborough, Norwood, and Taunton 305 AM EDT Tue Sep 22 2020 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Connecticut, Hartford CT, Tolland CT and Windham CT Counties. In Massachusetts, Western Hampden MA, Western Essex MA, Central Middlesex MA, Western Norfolk MA, Southern Worcester MA, Northern Worcester MA and Northern Bristol MA Counties. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MAZ022-221515- /O.CON.KBOX.WI.Y.0019.200922T1300Z-200923T0300Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 305 AM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 11 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Barnstable MA County. * WHEN...From 9 AM this morning to 11 PM EDT this evening. Strongest of the winds will occur this afternoon in the Hyannis to Chatham areas. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MAZ023-221515- /O.CON.KBOX.WI.Y.0019.200922T1300Z-200923T0000Z/ Dukes MA- Including the city of Vineyard Haven 305 AM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM EDT THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Dukes MA County. * WHEN...From 9 AM this morning to 8 PM EDT this evening. Strongest of the winds will be 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. && $$ Frank For more information from the National Weather Service visit https://weather.gov/box
2 follow-up statements
468 WWUS71 KBOX 221507 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1107 AM EDT Tue Sep 22 2020 MAZ024-222200- /O.CON.KBOX.HW.W.0005.000000T0000Z-200923T0300Z/ Nantucket MA- Including the city of Nantucket 1107 AM EDT Tue Sep 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...North winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Nantucket. * WHEN...Until 11 PM EDT this evening, with the strongest occurring from mid afternoon until early evening. * IMPACTS...Damaging winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. && $$ MAZ022-222200- /O.CON.KBOX.WI.Y.0019.000000T0000Z-200923T0300Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 1107 AM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Cape Cod. * WHEN...Until 11 PM EDT this evening. * 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. && $$ MAZ023-222200- /O.CON.KBOX.WI.Y.0019.000000T0000Z-200923T0000Z/ Dukes MA- Including the city of Vineyard Haven 1107 AM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Marthas Vineyard. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MAZ019-021-222200- /O.CON.KBOX.WI.Y.0019.000000T0000Z-200922T2200Z/ Eastern Plymouth MA-Southern Plymouth MA- Including the cities of Plymouth and Mattapoisett 1107 AM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Eastern and southern portions of Plymouth County. * WHEN...Until 6 PM EDT this evening. * 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. && $$ Nash For more information from the National Weather Service visit https://weather.gov/box
098 WWUS71 KBOX 222244 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 644 PM EDT Tue Sep 22 2020 MAZ024-230300- /O.CAN.KBOX.HW.W.0005.000000T0000Z-200923T0300Z/ /O.EXA.KBOX.WI.Y.0019.000000T0000Z-200923T0300Z/ Nantucket MA- Including the city of Nantucket 644 PM EDT Tue Sep 22 2020 ...WIND ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 30 mph with gusts up to 50 mph. * WHERE...Nantucket MA County. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MAZ023-222345- /O.CAN.KBOX.WI.Y.0019.000000T0000Z-200923T0000Z/ Dukes MA- Including the city of Vineyard Haven 644 PM EDT Tue Sep 22 2020 ...WIND ADVISORY IS CANCELLED... $$ MAZ022-230300- /O.CON.KBOX.WI.Y.0019.000000T0000Z-200923T0300Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 644 PM EDT Tue Sep 22 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph. * WHERE...Barnstable MA County. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/box
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 3:10 AM EDT | Red Flag Warning | BOX | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more | 16 hr |
Nearby
High Wind Warnings in Massachusetts, 2020Every high wind warning in 2020
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.