Nantucket County, MA Weather Alerts
Every National Weather Service alert issued for Nantucket County, Massachusetts, pushed to your phone within moments — county code MAC019, forecast zone MAZ024. Free with StormCast.
Download on Google PlayHow the NWS identifies Nantucket County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches MAC019 directly rather than matching on place names, which is why an alert arrives whether you are in Nantucket or anywhere else in the county.
NWS County Code
MAC019
Forecast Zone
MAZ024
Forecast Office
Norton (BOX)
Radar Station
KBOX
Towns covered in Nantucket County
An NWS alert for Nantucket County applies to all 2 of these communities. You do not need a separate alert for each one.
River gauges in and around Nantucket County
StormCast tracks 1 gauge near Nantucket County. Set a flood-stage alert on any of them to get notified before the water reaches you.
Current conditions
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Alert types issued for Nantucket County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →Nantucket County weather alert questions
Which NWS forecast zone is Nantucket County in?
Nantucket County, Massachusetts is NWS county code MAC019 and forecast zone MAZ024. Alerts for it are issued by the Norton (BOX) Weather Forecast Office, and the nearest NEXRAD radar is KBOX.
Which towns in Nantucket County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Nantucket County covers every community inside it, including Nantucket and Siasconset.
Are there river gauges in Nantucket County?
Yes — StormCast monitors 1 river gauge in and around Nantucket County, including Nantucket Harbor at Nantucket (IN MLLW). You can set a flood-stage alert on any of them and get a push notification when the water rises.
How fast are alerts for Nantucket County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for MAC019, the push notification goes out within moments — even with your screen off.