Alert archive / Massachusetts / Wind Advisories in 2018
Wind Advisory 20, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this wind advisory at Oct 21, 2018, 2:15 AM EDT for Nantucket County, Massachusetts. It took effect at Oct 21, 2018, 9:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 21, 2018, 2:15 AM EDT (06:15 UTC)
- In effect from
- Oct 21, 2018, 9:00 AM EDT
- Expired
- Oct 21, 2018, 3:53 PM EDT
- In force
- 7 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 06:15 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, 6.3 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
- 18 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1002 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
720 WWUS71 KBOX 210615 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 215 AM EDT Sun Oct 21 2018 MAZ007-021-RIZ005-007-211415- /O.UPG.KBOX.FZ.A.0002.181022T0300Z-181022T1300Z/ /O.NEW.KBOX.FZ.W.0003.181022T0300Z-181022T1300Z/ Eastern Essex MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Gloucester, Mattapoisett, Bristol, and Newport 215 AM EDT Sun Oct 21 2018 ...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EDT MONDAY... The National Weather Service in Boston/Norton has issued a Freeze Warning, which is in effect from 11 PM this evening to 9 AM EDT Monday. The Freeze Watch is no longer in effect. * TEMPERATURES...As low as 29. * TIMING...Very late tonight through 9 AM Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation. * LOCATION...Coastal Essex County, Southern Plymouth County in Massachusetts. Newport and Bristol Counties in Rhode Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ MAZ024-211415- /O.NEW.KBOX.WI.Y.0020.181021T1300Z-181021T1900Z/ Nantucket MA- Including the city of Nantucket 215 AM EDT Sun Oct 21 2018 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 3 PM EDT THIS AFTERNOON... The National Weather Service in Boston/Norton has issued a Wind Advisory, which is in effect from 9 AM this morning to 3 PM EDT this afternoon. * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * TIMING...Strongest winds from late morning into the afternoon. * IMPACTS...Strong winds may result in a few downed tree limbs and perhaps isolated power outages. * LOCATION...Nantucket. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ015-016-211415- /O.CON.KBOX.FZ.A.0002.181022T0300Z-181022T1300Z/ Suffolk MA-Eastern Norfolk MA- Including the cities of Boston and Quincy 215 AM EDT Sun Oct 21 2018 ...FREEZE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING... * TEMPERATURES...As low as 30. * TIMING...Very late tonight through 9 am Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation. * LOCATION...Suffolk County and Eastern Norfolk County in Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. && $$ Frank For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
3 follow-up statements
180 WWUS71 KBOX 211108 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 708 AM EDT Sun Oct 21 2018 MAZ007-021-RIZ005-007-211915- /O.CON.KBOX.FZ.W.0003.181022T0300Z-181022T1300Z/ Eastern Essex MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Gloucester, Mattapoisett, Bristol, and Newport 708 AM EDT Sun Oct 21 2018 ...FREEZE WARNING FROM 11 PM THIS EVENING TO 9 AM EDT MONDAY... * TEMPERATURES...As low as 29. * TIMING...Very late tonight through 9 AM Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Coastal Essex County, Southern Plymouth County in Massachusetts. Newport and Bristol Counties in Rhode Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ MAZ024-211915- /O.EXT.KBOX.WI.Y.0020.181021T1300Z-181021T2200Z/ Nantucket MA- Including the city of Nantucket 708 AM EDT Sun Oct 21 2018 ...WIND ADVISORY UNTIL 6 PM EDT THIS EVENING... * WINDS...Northwest 30 to 40 mph with gusts up to 50 mph. * TIMING...Strongest winds from late morning into the afternoon. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...Nantucket. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ015-016-211915- /O.CON.KBOX.FZ.A.0002.181022T0300Z-181022T1300Z/ Suffolk MA-Eastern Norfolk MA- Including the cities of Boston and Quincy 708 AM EDT Sun Oct 21 2018 ...FREEZE WATCH FROM THIS EVENING THROUGH MONDAY MORNING... * TEMPERATURES...As low as 30. * TIMING...Very late tonight through 9 am Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Suffolk County and Eastern Norfolk County in Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. && $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
167 WWUS71 KBOX 211509 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1109 AM EDT Sun Oct 21 2018 MAZ007-021-RIZ005-007-212315- /O.CON.KBOX.FZ.W.0003.181022T0300Z-181022T1300Z/ Eastern Essex MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Gloucester, Mattapoisett, Bristol, and Newport 1109 AM EDT Sun Oct 21 2018 ...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EDT MONDAY... * TEMPERATURES...As low as 29. * TIMING...Very late tonight through 9 AM Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Coastal Essex County, Southern Plymouth County in Massachusetts. Newport and Bristol Counties in Rhode Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ MAZ024-212200- /O.CON.KBOX.WI.Y.0020.000000T0000Z-181021T2200Z/ Nantucket MA- Including the city of Nantucket 1109 AM EDT Sun Oct 21 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * TIMING...Strongest winds from late morning into the afternoon. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...Nantucket. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ015-016-212315- /O.CON.KBOX.FZ.A.0002.181022T0300Z-181022T1300Z/ Suffolk MA-Eastern Norfolk MA- Including the cities of Boston and Quincy 1109 AM EDT Sun Oct 21 2018 ...FREEZE WATCH REMAINS IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH MONDAY MORNING... * TEMPERATURES...As low as 30. * TIMING...Very late tonight through 9 am Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Suffolk County and Eastern Norfolk County in Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. && $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
457 WWUS71 KBOX 211953 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 353 PM EDT Sun Oct 21 2018 MAZ024-212100- /O.CAN.KBOX.WI.Y.0020.000000T0000Z-181021T2200Z/ Nantucket MA- Including the city of Nantucket 353 PM EDT Sun Oct 21 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Boston/Norton has cancelled the Wind Advisory. Northwest winds have diminished below advisory levels. $$ MAZ015-016-220400- /O.UPG.KBOX.FZ.A.0002.181022T0300Z-181022T1300Z/ /O.EXA.KBOX.FZ.W.0003.181022T0300Z-181022T1300Z/ Suffolk MA-Eastern Norfolk MA- Including the cities of Boston and Quincy 353 PM EDT Sun Oct 21 2018 ...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EDT MONDAY... The National Weather Service in Boston/Norton has issued a Freeze Warning, which is in effect from 11 PM this evening to 9 AM EDT Monday. The Freeze Watch is no longer in effect. * TEMPERATURES...As low as 29 degrees away from the immediate shoreline. * TIMING...Very late tonight through 9 am Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Suffolk County and Eastern Norfolk County in Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ MAZ007-021-RIZ005-007-220400- /O.CON.KBOX.FZ.W.0003.181022T0300Z-181022T1300Z/ Eastern Essex MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Gloucester, Mattapoisett, Bristol, and Newport 353 PM EDT Sun Oct 21 2018 ...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EDT MONDAY... * TEMPERATURES...As low as 28 degrees. * TIMING...Very late tonight through 9 AM Monday morning. * IMPACTS...Freezing temperatures could kill sensitive vegetation and damage unprotected outdoor plumbing. * LOCATION...Coastal Essex County, Southern Plymouth County in Massachusetts. Newport and Bristol Counties in Rhode Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 21, 2:15 AM EDT | Freeze Warning | BOX | Essex, Norfolk, Plymouth, Suffolk | 31 hr |
Nearby
Wind Advisories in Massachusetts, 2018Every wind advisory in 2018
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.