Alert archive / Massachusetts / Wind Advisories in 2021
Wind Advisory 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this wind advisory at Jan 23, 2021, 3:15 PM EST for Barnstable County, Massachusetts. It took effect at Jan 24, 2021, 3:00 AM EST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Jan 23, 2021, 3:15 PM EST (20:15 UTC)
- In effect from
- Jan 24, 2021, 3:00 AM EST
- Expired
- Jan 24, 2021, 1:00 PM EST
- In force
- 10 hr
- Issued by
- NWS Boston/Norton, MA
County Barnstable County, MA
The radar
The Boston radar (KBOX), 78 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 25 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
- 1109 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
876 WWUS71 KBOX 232015 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 315 PM EST Sat Jan 23 2021 MAZ022-240415- /O.NEW.KBOX.WI.Y.0003.210124T0800Z-210124T1800Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 315 PM EST Sat Jan 23 2021 ...WIND ADVISORY IN EFFECT FROM 3 AM TO 1 PM EST SUNDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Barnstable MA County. * WHEN...From 3 AM to 1 PM EST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/box
2 follow-up statements
624 WWUS71 KBOX 240204 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 904 PM EST Sat Jan 23 2021 MAZ022-241015- /O.CON.KBOX.WI.Y.0003.210124T0800Z-210124T1800Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 904 PM EST Sat Jan 23 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM TO 1 PM EST SUNDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Barnstable County. * WHEN...From 3 AM to 1 PM EST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/box
491 WWUS71 KBOX 240918 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 418 AM EST Sun Jan 24 2021 MAZ022-241800- /O.CON.KBOX.WI.Y.0003.000000T0000Z-210124T1800Z/ Barnstable MA- Including the cities of Chatham, Falmouth, and Provincetown 418 AM EST Sun Jan 24 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Barnstable MA County. * WHEN...Until 1 PM EST 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
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 4:09 AM EST | Heavy Freezing Spray Advisory | BOX | 30 hr | |
| Jan 23, 6:43 AM EST | Special Weather Statement | BOX | Essex, Middlesex, Suffolk | 62 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.