Alert archive / Massachusetts / High Wind Watches in 2018
High Wind Watch 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this high wind watch at Nov 26, 2018, 3:16 AM EST for 7 counties in Massachusetts. It took effect at Nov 26, 2018, 9:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 26, 2018, 3:16 AM EST (08:16 UTC)
- In effect from
- Nov 26, 2018, 9:00 PM EST
- Expired
- Nov 26, 2018, 3:19 PM EST
- In force
- Issued by
- NWS Boston/Norton, MA
Counties Barnstable County, MA, Dukes County, MA, Essex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA
The radar
The Boston radar (KBOX), 37 km from the middle of the area, began a volume at 08:21 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, 8.3 hours before the alert went out and 66 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 459 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
649 WWUS71 KBOX 260816 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 316 AM EST Mon Nov 26 2018 MAZ020-021-RIZ006-007-261630- /O.NEW.KBOX.FG.Y.0036.181126T0816Z-181126T1500Z/ /O.NEW.KBOX.WI.Y.0032.181127T0200Z-181127T0900Z/ Southern Bristol MA-Southern Plymouth MA-Washington RI-Newport RI- Including the cities of Fall River, New Bedford, Mattapoisett, Narragansett, Westerly, and Newport 316 AM EST Mon Nov 26 2018 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... ...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 4 AM EST TUESDAY... The National Weather Service in Boston/Norton has issued a Dense Fog Advisory, which is in effect until 10 AM EST this morning. A Wind Advisory has also been issued. This Wind Advisory is in effect from 9 PM this evening to 4 AM EST Tuesday. * VISIBILITIES...One quarter or less at times. * WINDS...East 15 to 30 mph with gusts up to 50 mph. * TIMING...Dense fog through 10 am this morning. Strong winds later this evening into the overnight hours. * IMPACTS...Hazardous travel this morning with poor visibility. Strong winds may result in isolated downed trees and isolated power outages. * LOCATION...The south coasts of both Rhode Island and Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Dense Fog Advisory means visibilities will frequently be reduced to less than one quarter mile, for at least 3 hours. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. 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. && $$ MAZ019-261630- /O.NEW.KBOX.FG.Y.0036.181126T0816Z-181126T1500Z/ /O.NEW.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ Eastern Plymouth MA- Including the city of Plymouth 316 AM EST Mon Nov 26 2018 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... The National Weather Service in Boston/Norton has issued a Dense Fog Advisory, which is in effect until 10 AM EST this morning. A High Wind Watch has also been issued. This High Wind Watch is in effect from this evening through late tonight. * VISIBILITIES...One quarter or less at times. * WINDS...East 20 to 30 mph with gusts between 50 and 60 mph possible. * TIMING...Dense fog through 10 am this morning. Strong winds later this evening into the overnight hours. * IMPACTS...Hazardous travel this morning with poor visibility. Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...Eastern Plymouth county. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Dense Fog Advisory means visibilities will frequently be reduced to less than one quarter mile, for at least 3 hours. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. A High Wind Watch means the potential exists for a damaging wind event. These strong winds are capable of downing trees and power lines, as well causing property damage. If a high wind warning is issued, stay inside and away from windows. && $$ MAZ002>005-008>013-017-018-026-RIZ001>005-261500- /O.NEW.KBOX.FG.Y.0036.181126T0816Z-181126T1500Z/ Western Franklin MA-Eastern Franklin MA-Northern Worcester MA- Central Middlesex MA-Western Hampshire MA-Western Hampden MA- Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA- Western Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Bristol RI- Including the cities of Charlemont, Greenfield, Orange, Barre, Fitchburg, Framingham, Lowell, Chesterfield, Blandford, Amherst, Northampton, Springfield, Milford, Worcester, Foxborough, Norwood, Taunton, Brockton, Ayer, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, and Bristol 316 AM EST Mon Nov 26 2018 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... The National Weather Service in Boston/Norton has issued a Dense Fog Advisory, which is in effect until 10 AM EST this morning. * VISIBILITIES...One quarter of a mile or less at times. * TIMING...Through 10 am. * IMPACTS...Hazardous travel this morning with poor visibility. Freezing fog is also possible across portions of far western and interior northern MA. This may result in some black ice...so drive with extra caution. * LOCATION...Large portions of both Massachusetts and Rhode Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Dense Fog Advisory means visibilities will frequently be reduced to less than one quarter mile, for at least 3 hours. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ RIZ008-261630- /O.NEW.KBOX.WI.Y.0032.181127T0200Z-181127T0900Z/ Block Island RI- Including the city of New Shoreham 316 AM EST Mon Nov 26 2018 ...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 4 AM EST TUESDAY... The National Weather Service in Boston/Norton has issued a Wind Advisory, which is in effect from 9 PM this evening to 4 AM EST Tuesday. * WINDS...Southeast 25 to 35 mph with gusts up to 50 mph. * TIMING...Later this evening through the overnight hours * IMPACTS...Strong winds may result in isolated tree damage and isolated power outages. * LOCATION...Block Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ007-015-016-022>024-261630- /O.NEW.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Barnstable MA- Dukes MA-Nantucket MA- Including the cities of Gloucester, Boston, Quincy, Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 316 AM EST Mon Nov 26 2018 ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... The National Weather Service in Boston/Norton has issued a High Wind Watch, which is in effect from this evening through late tonight. * WINDS...East 25 to 35 mph with gusts between 50 and 60 mph possible. * TIMING...Later this evening through the overnight hours. * IMPACTS...Damaging winds may knock down some trees and result in scattered power outages. * LOCATION...The eastern Massachusetts coastline including the Cape and Islands. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Watch means the potential exists for a damaging wind event. These strong winds are capable of downing trees and power lines, as well causing property damage. If a high wind warning is issued, stay inside and away from windows. && $$ Frank For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
2 follow-up statements
107 WWUS71 KBOX 261517 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1017 AM EST Mon Nov 26 2018 MAZ020-021-RIZ006-007-262330- /O.EXP.KBOX.FG.Y.0036.000000T0000Z-181126T1500Z/ /O.CON.KBOX.WI.Y.0032.181127T0200Z-181127T0900Z/ Southern Bristol MA-Southern Plymouth MA-Washington RI-Newport RI- Including the cities of Fall River, New Bedford, Mattapoisett, Narragansett, Westerly, and Newport 1017 AM EST Mon Nov 26 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 4 AM EST TUESDAY... ...DENSE FOG ADVISORY HAS EXPIRED... * WINDS...East 15 to 25 mph with gusts up to 50 mph. * TIMING...Strong winds later this evening into the overnight hours. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...The south coasts of both Rhode Island and Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ019-262330- /O.EXP.KBOX.FG.Y.0036.000000T0000Z-181126T1500Z/ /O.CON.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ Eastern Plymouth MA- Including the city of Plymouth 1017 AM EST Mon Nov 26 2018 ...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 PM EST THIS EVENING THROUGH LATE TONIGHT... ...DENSE FOG ADVISORY HAS EXPIRED... * WINDS...East 20 to 30 mph with gusts up to 55 mph. * TIMING...Strong winds later this evening into the overnight hours. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...Eastern Plymouth county. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Watch means the potential exists for a damaging wind event. These strong winds are capable of downing trees and power lines, as well causing property damage. If a high wind warning is issued, stay inside and away from windows. && $$ MAZ002>005-008>013-017-018-026-RIZ001>005-261630- /O.EXP.KBOX.FG.Y.0036.000000T0000Z-181126T1500Z/ Western Franklin MA-Eastern Franklin MA-Northern Worcester MA- Central Middlesex MA-Western Hampshire MA-Western Hampden MA- Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA- Western Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Bristol RI- Including the cities of Charlemont, Greenfield, Orange, Barre, Fitchburg, Framingham, Lowell, Chesterfield, Blandford, Amherst, Northampton, Springfield, Milford, Worcester, Foxborough, Norwood, Taunton, Brockton, Ayer, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, and Bristol 1017 AM EST Mon Nov 26 2018 ...DENSE FOG ADVISORY HAS EXPIRED... Low clouds and fog are still in place over Massachusetts and Rhode Island. Dense fog lingered at Worcester Airport at 10 AM as well as at North Central Airport at 10 AM. Visibility at all other areas had improved to between 1 and 3 miles. Patches of poor visibility may continue through midday. Travelers should continue to allow extra time to reach their destinations. $$ RIZ008-262330- /O.CON.KBOX.WI.Y.0032.181127T0200Z-181127T0900Z/ Block Island RI- Including the city of New Shoreham 1017 AM EST Mon Nov 26 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 4 AM EST TUESDAY... * WINDS...Southeast 25 to 35 mph with gusts up to 50 mph. * TIMING...Later this evening through the overnight hours * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...Block Island. 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. && $$ MAZ007-015-016-022>024-262330- /O.CON.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Barnstable MA- Dukes MA-Nantucket MA- Including the cities of Gloucester, Boston, Quincy, Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 1017 AM EST Mon Nov 26 2018 ...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 PM EST THIS EVENING THROUGH LATE TONIGHT... * WINDS...East 25 to 35 mph with gusts up to 60 mph. * TIMING...Later this evening through the overnight hours. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. * LOCATION...The eastern Massachusetts coastline including the Cape and Islands. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Watch means the potential exists for a damaging wind event. These strong winds are capable of downing trees and power lines, as well causing property damage. If a high wind warning is issued, stay inside and away from windows. && $$ 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
547 WWUS71 KBOX 262019 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 319 PM EST Mon Nov 26 2018 MAZ019-022>024-270430- /O.UPG.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ /O.NEW.KBOX.HW.W.0014.181127T0200Z-181127T1000Z/ Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Plymouth, Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 319 PM EST Mon Nov 26 2018 ...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 AM EST TUESDAY... The National Weather Service in Boston/Norton has issued a High Wind Warning, which is in effect from 9 PM this evening to 5 AM EST Tuesday. The High Wind Watch is no longer in effect. * WINDS...Southeast 20 to 30 mph with gusts up to 60 mph. * TIMING...Strong winds later this evening into the overnight hours. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. * LOCATION...Eastern Plymouth county, Cape Cod, and Islands. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning is issued when sustained winds of 40 mph are expected for at least one hour, with gusts of 58 mph or greater at any time. Damage to trees, power lines, and property are possible with winds of this magnitude. Power outages are likely. Take action to secure loose outdoor objects. && $$ MAZ007-015-016-270430- /O.UPG.KBOX.HW.A.0009.181127T0200Z-181127T1000Z/ /O.EXB.KBOX.WI.Y.0032.181127T0100Z-181127T1100Z/ Eastern Essex MA-Suffolk MA-Eastern Norfolk MA- Including the cities of Gloucester, Boston, and Quincy 319 PM EST Mon Nov 26 2018 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 6 AM EST TUESDAY... The National Weather Service in Boston/Norton has issued a Wind Advisory, which is in effect from 8 PM this evening to 6 AM EST Tuesday. The High Wind Watch is no longer in effect. * WINDS...East 15 to 25 mph with gusts up to 50 mph. * TIMING...Later this evening through the overnight hours. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...The eastern Massachusetts coastline north of Plymouth County. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ MAZ014-270430- /O.EXB.KBOX.WI.Y.0032.181127T0100Z-181127T1100Z/ Southeast Middlesex MA- Including the city of Cambridge 319 PM EST Mon Nov 26 2018 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 6 AM EST TUESDAY... The National Weather Service in Boston/Norton has issued a Wind Advisory, which is in effect from 8 PM this evening to 6 AM EST Tuesday. * WINDS...East 10 to 20 mph with gusts up to 45 mph. * TIMING...Strong winds later this evening into the overnight hours. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * LOCATION...Southeast Middlesex County in Massachusetts. 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. && $$ MAZ020-021-RIZ006>008-270430- /O.EXT.KBOX.WI.Y.0032.181127T0100Z-181127T0900Z/ Southern Bristol MA-Southern Plymouth MA-Washington RI-Newport RI- Block Island RI- Including the cities of Fall River, New Bedford, Mattapoisett, Narragansett, Westerly, Newport, and New Shoreham 319 PM EST Mon Nov 26 2018 ...WIND ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 4 AM EST TUESDAY... * WINDS...East 15 to 25 mph with gusts up to 50 mph. * TIMING...Strong winds later this evening into the overnight hours. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. * LOCATION...The south coasts of both Rhode Island and Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained winds of 31 to 39 mph are expected, with gusts between 46 to 57 mph. Winds this strong are capable of downing small tree limbs and branches, possibly causing isolated power outages. Driving can also be difficult, especially for high profile vehicles. Use extra caution. && $$ 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
What forecasters said that day
The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before this high wind watch went out at Nov 26, 12:59 AM EST, 2 hours 17 minutes earlier.
Area forecast discussion, Nov 26, 12:59 AM EST, 2 hours 17 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
1259 AM EST Mon Nov 26 2018
.SYNOPSIS...
Another low pressure will bring a soaking rain to the region
Monday afternoon into early Tuesday, with any threat of wet snow
confined to the highest terrain. There may also be a period of
strong winds along the coast Monday night into early Tuesday.
Mid-upper level low lingers Tuesday through Wednesday with scattered
shower activity and breezy W winds. High pressure and drier weather
for Thursday through Saturday. Stormy pattern returns Sunday into
early next week. Milder and faster weather pattern, expecting
quick bouts of rainfall to add to our already soaked region.
&&
.NEAR TERM /UNTIL 6 AM THIS MORNING/...
10 pm update...
Drizzle and low clouds continue, especially over eastern
MA...regions of fog beginning to develop as well. Otherwise a
quiet night expected ahead of the next system for
Monday...forecast on track.
Previous Discussion...
Low, drizzly conditions overnight. Localized convergence across
E coastal MA of a moist boundary layer profile. The slight amount
of ascent yielding patchy drizzle across the region through this
evening, a lull potentially overnight, but then with E onshore
flow, albeit light, developing, with upslope along the terrain,
drizzle likely to re-emerge. Throughout, low clouds hang as there
is hardly opportunity between the two storms for conditions to
improve beneath the subtle rising heights in-between.
Given recent antecedent rains, higher dewpoints, it is more than
likely that temperatures where low clouds and drizzle reside will
remain fairly stable, only falling slightly. However more to the
W, slightly drier, lighter winds, less upslope and/or localized
convergence, a bit more opportunity for cooling conditions towards
the dewpoint. May see some patchy fog issues out that way as well.
Lows around the mid 30s.
&&
.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TUESDAY/...
Looking for the next low pressure to impact our region late Monday
into Tuesday. Strong forcing and high moisture content. Looking
at another soaking rain of about 1-1.5 inches, with locally higher
amounts. Greatest rainfall amounts should be across interior S
New England.
There is also a potent low level jet on the E side of this low
pressure. Have moderate confidence in the need for another Wind
Advisory for the Cape and Islands, and perhaps Cape Ann, too.
Slightly less confidence for other portions of the MA coast.
With most of the leaves likely off the trees by now, not
expecting a tremendous impact. However, there could be some
minor tree damage, which may lead to isolated power outages.
This low pressure moves into northern New England Tuesday, allowing
our region to start to dry out. Greatest risk for rain showers on
Tuesday will be north of the MA Pike.
Near to slightly above normal temperatures expected through this
period.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
*/ Highlights...
- Scattered shower and breezy W wind activity through Wednesday
- Mostly dry, comfortable Thursday through Saturday
- Stormy, wet pattern emerges Sunday going into early next week
- Overall, milder pattern evolving, inside-runner storms ... rain
*/ Overview...
Reiterating yesterdays overview discussion with a bit more context.
Presently, -NAO / N Atlantic +H5 height anomaly has yielded upstream
buckled pattern especially with preferred Eastern N America H5 trof.
Beneath which, continual SW-NE storm development downshear of +PNA /
W CONUS H5 ridge. Stratospheric vortex stretched S through C Canada,
an opportunistic cross-polar flow amplified through any PV anomalies
and trop-folds behind and through the H5 preferred trof, promoting
further sub-tropical digging and tighter baroclinicity, a stronger
fetch of deeper moisture N, convergently focused, ascending beneath
favorable dynamics and diffluence. Subsequent excessive rainfall, it
has been a very wet month of November.
But change is coming. Progressive N Pacific pattern, accompanying H3
jet streak. Split-flow in advance pushing E, an usherance of warmer
air into Canada emphasized via +H85 temperature anomalies whether it
be ahead of Gulf of AK or Rocky Mountain lee cyclones, advance mild
SW fetch / S-stream energy emphasis. Over time, Arctic air deflects
E coinciding with a stratospheric vortex shift towards N Europe. The
NAO becoming positive as an Icelandic low becomes dominant, better
area for PV anomalies / trop-folds develops over the Davis Straight
and N Atlantic. This pattern shift going into December.
An active pattern persists. Continual Pacific-origin energy sweeps E
obtaining cyclonic curvature E of the Rockies. However, NW Atlantic
ridge builds given a prolonging persistence of milder SW flow, less
deep, colder air to work with per discussion above, and a wide-open
N Atlantic with +NAO. Overall, with any storms, inside-runners, wet
outcomes for our area, no snow to speak of unless storms manifest
there own cold, however much less Arctic air in advance promoting
wet-bulb processes to below-freezing. Fast-moving, the hope is that
rainfall amounts will hold below an inch limiting additions to an
already soaked region with rainfall amounts so far for November of
around 2 to 3 times above that which normally is observed.
Daily-detail discussion below.
*/ Discussion...
Tuesday night through Wednesday night...
Scattered rain / snow showers. Impact majority over the Berkshires
and perhaps the Worcester Hills with potential accumulating snows,
reduced visibility. Breezy W winds. Until the mid-upper level low
lifts out, likely ascent aided by terrain upon continental-Arctic
moist airmass. Convectively driven by steep lapse rates nearly up
around H4 given cold air advection throughout, will easily see the
mix-down of breezy W winds around 25 mph. Perhaps not as cold as the
low occludes aloft, warmer air wrapping in, steer away from coldest
forecast guidance, hold it a bit milder closer to average for late
November.
Thursday through Saturday...
Keeping it mostly dry. Certainly for Thursday and Friday, actually
lean milder with temperatures given the airmass aloft hardly Arctic.
Plenty of sunshine along with it, keep it close to average highs for
late November. 25.12z GFS suggesting wet-weather outcomes around
Friday night. Hesitant as dry air lingers and heights are rising out
ahead of a late weekend / early week storm. Mid to high cloud with
ascent along isentropes but holding back from chance PoPs. Feel high
pressure will win out.
Sunday onward...
Series of inside-runner lows. Milder, faster, looking at periods of
rain, brief across the area per evolving progressive storm pattern.
Uncertain exact timing and impacts, but consistent signals, rainfall
will only add to an already soaked region. Also uncertain, wintry
weather outcomes. Thermal fields pretty mild, even in advance, maybe
perhaps some cold can manifest per wet-bulbing to yield wet snow but
a marginal setup, if any impacts would be across the high terrain,
likely hard to come by given on the cusp of freezing.
&&
.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06z update...
Short Term /through Tuesday/...High Confidence.
This morning... IFR-LIFR widespread over coastal TAF sites and
along the coastal plain in widespread fog. This fog and low VSBY
will spread west through the morning. Light winds.
Monday...
Widespread MVFR-IFR with patchy BR. Will lower with onset of -RA
after 16-18Z becoming RA with embedded +RA late. Increasing E
wind 10 to 15 kts with gust up to 35 kts.
Monday night...
Widespread IFR with -RA/RA, embedded +RA. Wet SN possible for
the Berkshires. Height of E winds 25 to 30 kts with highest
gusts along the shoreline upwards of around 50 kts. Will see
winds taper shortly after 07Z then shift out of the W towards
morning. By then, could begin to see an improving trend towards
VFR.
Tuesday...
W winds around 10 kts with gusts up around 25 kft especially
along the S/SE coast. VSBYs quickly improving as CIGs rise
towards VFR.
KBOS Terminal...Moderate confidence in TAF.
KBDL Terminal....Moderate confidence in TAF.
Outlook /Tuesday Night through Friday/...
Tuesday Night: VFR. Breezy.
Wednesday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA, slight chance SHSN.
Wednesday Night through Thursday Night: VFR. Breezy.
Friday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Short Term /through Tuesday/...High confidence.
Winds and seas continue to diminish overnight, small craft advisory
conditions lessening. However a brief improvement prior to another
potent storm center with E gale force gusts developing, the height
of which will be around Monday evening, 15 to 25 kt sustained with
gusts up to 50 kts over the outer waters. Seas building 8 to 14
feet on unsheltered, open waters. GALE WATCHES posted for potential
threats. Rough seas linger as winds shift W early Tuesday morning,
continued 10 to 15 kts sustained with gusts up around 25 kts.
Outlook /Tuesday Night through Friday/...
Tuesday Night: Low risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of rough seas. Slight chance of rain
showers.
Wednesday: Low risk for Small Craft Advisory winds with local
gusts up to 30 kt. Local rough seas. Slight chance of rain
showers.
Wednesday Night: Moderate risk for Small Craft Advisory winds
with local gusts up to 30 kt. Local rough seas. Slight chance
of rain showers.
Thursday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Local rough seas.
Thursday Night: Winds less than 25 kt. Local rough seas.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
&&
.HYDROLOGY...
We will continue to monitor the potential for some minor river /
stream flooding through early this week with another soaking
rainfall anticipated Monday afternoon into early Tuesday.
&&
.TIDES/COASTAL FLOODING...
Will have to monitor another potential round of coastal flooding
Monday night. The late night high tide on the east coast is the
lower of the high tides. Although up to 2 feet of surge is
possible, this may prevent any impactful coastal flood issues.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Gale Watch from this afternoon through Tuesday afternoon for
ANZ231>234-254>256.
Gale Watch from this evening through late tonight for ANZ230.
Gale Watch from this afternoon through late tonight for ANZ236.
Gale Watch from this afternoon through Tuesday afternoon for
ANZ235-237.
Small Craft Advisory until 1 AM EST early this morning for
ANZ235-237.
Gale Watch from this evening through Tuesday afternoon for
ANZ250.
Small Craft Advisory until 9 PM EST this evening for ANZ250.
Gale Watch from this evening through Tuesday morning for
ANZ251.
Small Craft Advisory until 5 PM EST this afternoon for
ANZ254>256.
&&
SYNOPSIS...Belk/Sipprell
NEAR TERM...Sipprell/BW
SHORT TERM...Belk
LONG TERM...Sipprell
AVIATION...Sipprell/BW
MARINE...Belk/Sipprell
HYDROLOGY...
TIDES/COASTAL FLOODING...Hazardous weather outlook, Nov 25, 5:11 PM EST, 10 hours 5 minutes before
Hazardous Weather Outlook National Weather Service Boston/Norton MA 511 PM EST Sun Nov 25 2018 CTZ002>004-MAZ002>024-026-RIZ001>008-262215- Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Eastern Essex MA-Western Hampshire MA- Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA- Southern Worcester MA-Western Norfolk MA-Southeast Middlesex MA- Suffolk MA-Eastern Norfolk MA-Northern Bristol MA- Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA- Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI- Washington RI-Newport RI-Block Island RI- 511 PM EST Sun Nov 25 2018 This Hazardous Weather Outlook is for northern Connecticut, all of Massachusetts east of Berkshire County, and Rhode Island. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday through early Tuesday... Stout storm system sweeping S New England, the threat of nuisance, isolated urban and small stream flooding with moderate to heavy rain forecast. In addition, strong easterly onshore flow, potential for strong to damaging winds and pockets of coastal flooding in the form of minor inundation of shoreline roadways during high tides. Lower risk accumulating wet snow over Northwest MA high terrain. Most of the impacts centered around Monday evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ231>234-254>256-262215- Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ251-262215- Massachusetts Bay and Ipswich Bay- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY EVENING THROUGH TUESDAY MORNING... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. Easterly gale force wind gusts are likely Monday night into early Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ250-262215- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ235-237-262215- Rhode Island Sound-Block Island Sound- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for Rhode Island coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ236-262215- Narragansett Bay- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY AFTERNOON THROUGH LATE MONDAY NIGHT... This Hazardous Weather Outlook is for Rhode Island coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230-262215- Boston Harbor- 511 PM EST Sun Nov 25 2018 ...GALE WATCH FROM MONDAY EVENING THROUGH LATE MONDAY NIGHT... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. 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 |
|---|---|---|---|---|
| Nov 26, 2:54 AM EST | Coastal Flood Advisory | BOX | Barnstable, Essex, Nantucket, Norfolk, Plymouth, Suffolk | 26 hr |
| Nov 26, 3:16 AM EST | Dense Fog Advisory | BOX | Bristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 7 hr |
| Nov 26, 3:16 AM EST | Wind Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more | 36 hr |
| Nov 26, 3:31 AM EST | Winter Weather Advisory | BOX | Franklin, Hampshire | 30 hr |
| Nov 26, 3:36 AM EST | Gale Warning | BOX | 36 hr | |
| Nov 26, 3:36 AM EST | Storm Warning | BOX | 23 hr | |
| Nov 26, 3:19 PM EST | High Wind Warning | BOX | Barnstable, Dukes, Nantucket, Norfolk, Plymouth | 10 hr |
| Nov 26, 3:37 PM EST | River Flood Warning | BOX | Middlesex, Worcester | 68 hr |
Nearby
High Wind Watches in Massachusetts, 2018Every high wind watch 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.