Alert archive / Massachusetts / High Wind Warnings in 2026
High Wind Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this high wind warning at Feb 21, 2026, 12:30 PM EST for Nantucket County, Massachusetts. It took effect at Feb 22, 2026, 10:00 PM EST. It was in force for . No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 21, 2026, 12:30 PM EST (17:30 UTC)
- In effect from
- Feb 22, 2026, 10:00 PM EST
- Expired
- Feb 22, 2026, 11:18 AM EST
- In force
- 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 17:28 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
Brookhaven, NY (KOKX), launched 12:00Z, 5.5 hours before the alert went out and 242 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
- 763 m above ground
- 0-6 km bulk shear
- 123 kt
- 0-1 km storm-relative helicity
- -89 m²/s²
- 0-3 km storm-relative helicity
- -25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
052 WWUS71 KBOX 211730 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1230 PM EST Sat Feb 21 2026 MAZ024-220900- /O.NEW.KBOX.HW.W.0002.260223T0300Z-260224T0600Z/ Nantucket MA- Including the cities of Nantucket 1230 PM EST Sat Feb 21 2026 ...HIGH WIND WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 40 mph with gusts up to 70 mph expected. * WHERE...Nantucket MA County. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ Visit us at http://www.weather.gov/box Nocera
2 follow-up statements
422 WWUS71 KBOX 220649 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 149 AM EST Sun Feb 22 2026 MAZ024-222115- /O.CON.KBOX.HW.W.0002.260223T0300Z-260224T0600Z/ Nantucket MA- Including the cities of Nantucket 149 AM EST Sun Feb 22 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Nantucket County. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ Visit us at http://www.weather.gov/box Belk
413 WWUS71 KBOX 221618 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1118 AM EST Sun Feb 22 2026 MAZ024-221730- /O.CAN.KBOX.HW.W.0002.260223T0300Z-260224T0600Z/ Nantucket MA- Including the cities of Nantucket 1118 AM EST Sun Feb 22 2026 ...HIGH WIND WARNING IS CANCELLED... The High Wind Warning is now covered in the Blizzard Warning. $$ Visit us at http://www.weather.gov/box
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 12:29 PM EST | Blizzard Warning | BOX | Barnstable, Bristol, Dukes, Essex, Hampden, Hampshire and 6 more | 55 hr |
| Feb 21, 12:29 PM EST | Winter Storm Warning | BOX | Essex, Franklin, Hampden, Hampshire, Middlesex, Worcester | 52 hr |
| Feb 21, 12:37 PM EST | Storm Warning | BOX | 58 hr | |
| Feb 21, 2:03 PM EST | Coastal Flood Warning | BOX | Barnstable, Dukes, Nantucket, Norfolk, Plymouth | 41 hr |
Nearby
High Wind Warnings in Massachusetts, 2026Every high wind warning in 2026
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.