Alert archive / Massachusetts / Gale Warnings in 2020
Gale Warning 24, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this gale warning at Apr 10, 2020, 10:14 AM EDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 10, 2020, 10:14 AM EDT (14:14 UTC)
- Expired
- Apr 10, 2020, 7:52 PM EDT
- In force
- 10 hr
- Issued by
- NWS Boston/Norton, MA
The text
As transmitted.
458 WHUS71 KBOX 101414 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1014 AM EDT Fri Apr 10 2020 ANZ236-102215- /O.UPG.KBOX.SC.Y.0057.000000T0000Z-200410T2300Z/ /O.NEW.KBOX.GL.W.0024.200410T1414Z-200410T2300Z/ Narragansett Bay- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING... * WHAT...West winds 15 to 20 kt with gusts up to 35 kt and seas 3 to 5 feet. * WHERE...Narragansett Bay. * WHEN...Until 7 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ230-102215- /O.UPG.KBOX.SC.Y.0057.000000T0000Z-200410T2300Z/ /O.EXB.KBOX.GL.W.0023.000000T0000Z-200410T2300Z/ Boston Harbor- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING... * WHAT...West winds 15 to 20 kt with gusts up to 35 kt and seas around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 7 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-254-255-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 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- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West 20 to 30 kt with gusts up to 40 kt early this evening. Seas building to 7 to 10 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ251-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Massachusetts Bay and Ipswich Bay- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas building to 4 to 7 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ231-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Cape Cod Bay- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 3 to 5 feet expected. * WHERE...Cape Cod Bay. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Nantucket Sound- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 4 to 7 feet expected. * WHERE...Nantucket Sound. * WHEN...From 2 PM Thursday to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ233>235-237-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 7 to 10 feet expected. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound, Block Island Sound and Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ256-102215- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1014 AM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 7 to 10 feet expected. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound, Block Island Sound and Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
2 follow-up statements
321 WHUS71 KBOX 101959 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 359 PM EDT Fri Apr 10 2020 ANZ230-110000- /O.EXT.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Boston Harbor- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 15 to 20 kt with gusts up to 35 kt and seas around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ236-110000- /O.EXT.KBOX.GL.W.0024.000000T0000Z-200411T0000Z/ Narragansett Bay- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 15 to 20 kt with gusts up to 35 kt and seas 3 to 5 feet. * WHERE...Narragansett Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-254-255-110400- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 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- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West 20 to 30 kt with gusts up to 40 kt early this evening. Seas building to 7 to 10 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ251-110000- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Massachusetts Bay and Ipswich Bay- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas building to 4 to 7 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ231-110000- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Cape Cod Bay- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 3 to 5 feet expected. * WHERE...Cape Cod Bay. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232-110000- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ Nantucket Sound- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 4 to 7 feet expected. * WHERE...Nantucket Sound. * WHEN...From 2 PM Thursday to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ233>235-237-110400- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 7 to 10 feet expected. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound, Block Island Sound and Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ256-110400- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 359 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...West winds 20 to 25 kts with gusts to 40 kts. Seas 7 to 10 feet expected. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound, Block Island Sound and Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
985 WHUS71 KBOX 102352 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 752 PM EDT Fri Apr 10 2020 ANZ251-110800- /O.CAN.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ /O.NEW.KBOX.SC.Y.0058.200410T2352Z-200411T1400Z/ Massachusetts Bay and Ipswich Bay- 752 PM EDT Fri Apr 10 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...West winds 15 to 20 kt with gusts up to 30 kt and seas 2 to 4 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 10 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-110800- /O.CAN.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ /O.NEW.KBOX.SC.Y.0058.200410T2352Z-200411T1400Z/ Cape Cod Bay- 752 PM EDT Fri Apr 10 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...West winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE...Cape Cod Bay. * WHEN...Until 10 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-110700- /O.CAN.KBOX.GL.W.0023.000000T0000Z-200411T0000Z/ /O.NEW.KBOX.SC.Y.0058.200410T2352Z-200411T0700Z/ Boston Harbor- 752 PM EDT Fri Apr 10 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-110700- /O.CAN.KBOX.GL.W.0024.000000T0000Z-200411T0000Z/ /O.NEW.KBOX.SC.Y.0058.200410T2352Z-200411T0700Z/ Narragansett Bay- 752 PM EDT Fri Apr 10 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 15 kt with gusts up to 30 kt and seas 1 to 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232-110700- /O.EXT.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Nantucket Sound- 752 PM EDT Fri Apr 10 2020 ...GALE WARNING NOW IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE...Nantucket Sound. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-254-255-110700- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 752 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and seas 6 to 9 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ233>235-237-110700- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound- 752 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 4 to 7 feet. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Block Island Sound and Rhode Island Sound. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ ANZ256-110700- /O.CON.KBOX.GL.W.0023.000000T0000Z-200411T0700Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 752 PM EDT Fri Apr 10 2020 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 25 kt with gusts up to 40 kt and seas 7 to 10 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 3 AM EDT Saturday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
What forecasters said that day
The local office's own words before this gale warning 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 gale warning went out at Apr 10, 7:02 AM EDT, 3 hours 12 minutes earlier.
Area forecast discussion, Apr 10, 7:02 AM EDT, 3 hours 12 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
702 AM EDT Fri Apr 10 2020
.SYNOPSIS...
Powerful low pressure over Nova Scotia will maintain cool and
blustery weather across southern New England today along with
scattered rain showers. Dry weather Saturday but remaining cool and
brisk. High pressure south of New England provides milder
temperatures for Sunday with highs 55-60. Powerful low pressure then
tracks thru the Great Lakes Monday with heavy showers and strong
winds to impact southern New England. Dry and seasonable weather
returns Tuesday.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
7am update ... no changes to previous forecast. Earlier
discussion below.
Previous Discussion ...
Today ...
Mainly dry conditions this morning with just some lake effect
rain/snow showers from NY state spilling over the Berkshires and
Litchfield Hills into the CT river valley. Impressive cold pool of
-36C at 500 mb streaming S-SW of New England and yielding scattered
rain showers currently across northern NJ/NYC into western LI. This
activity will track south of New England this morning. As this cold
pool moves offshore, wrap around moisture and warmer air aloft
(TROWAL) pivoting cyclonically around mid level low into southern
New England this afternoon. Thus expect morning sunshine to give way
to afternoon clouds and scattered rain showers with scattered snow
showers over the high terrain. Not a wash out but definitely have to
dodge a few chilly showers/sprinkles this afternoon and early
evening.
Cool temps aloft (-5C at 850 mb) combined with mostly cloudy
conditions this afternoon will limit highs to 45-50, low 40s in the
high terrain. Normal high for April 10th is 52-58, so a few degs
cooler than normal but it will feel even cooler given brisk west
winds today sustained 15 mph but gusting 25-35 mph at times.
Strongest winds will be across the Islands given stronger wind
fields aloft and deeper boundary layer with gusts up to 50 mph at
times. Therefore have posted a Wind Advisory for Block Island,
Marthas Vineyard and Nantucket.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/...
Tonight ...
Any leftover sprinkles/light rain showers (light snow showers high
terrain) during the early evening will move offshore and give way to
dry weather. CAA continues with 850 mb temps lowering to about -7C.
Lows will be in the 30s but a NW breeze will yield wind chills in
the 20s. Strongest NW winds over Cape Cod and Islands with gusts up
to 30 mph.
Saturday ...
Another northern stream trough moves across the area in the morning
but its cold pool remains north of region over northern VT/NH into
ME. Thus column not as cold and drier than today. As a result more
sunshine Saturday than today yielding temperatures a few degs warmer
with highs in the low 50s. Not quite as windy as well with WNW winds
10-15 mph with gusts up to 25 mph. So overall some improvement and
more pleasant than today.
&&
.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
Highlights...
* Temperatures running near to below normal Saturday, then a warm up
Sunday-Tuesday
* Rain, thunderstorms, and gusty winds on Monday
* Drier and cooler through mid week
Details...
Saturday night and Sunday...
The ridge axis moves overhead Saturday night bringing light winds,
clear skies, and efficient radiational cooling. MOS guidance has
been given more weight with the low temperatures for this reason;
we're looking at most interior locations dipping to near or
below freezing.
By Sunday on the back side of the ridge warm SW flow advects in
milder air and mid/upper level moisture. So, while clouds will be on
the increase through the day, temperatures will be quite a bit
warmer than Saturday, in the upper 50s...closer to the low 60s for
the CT Valley. The exception, as per usual, will be the Cape and
islands where southerly flow off the ocean keeps temps in the low
50s. Also on Sunday a modest 25-35 kt LLJ moves overhead. Given WAA
at the sfc, the BL should be well mixed to near 800 mb leading to
wind gusts of 25 to 35 mph at the surface. Overall, a mild, partly
cloudy, and breezy end to the weekend.
Sunday night and Monday...
Late Sunday night and Monday our next strong storm system will
impact southern New England bringing widespread heavy rain, strong
winds, and thunderstorms. At the synoptic scale we see the merging
to two distinct disturbances; one, a cutoff low spinning over the
desert southwest all weekend which is finally pulled into the
steering flow Sunday and eventually phases with a digging trough
over the northern Plains, lifting through the Great Lakes on Monday.
This will be a very strong and expansive system. Global guidance
progs the sfc MSLP around 992 mb at 00Z Monday and by 00Z Tuesday
its around or sub 970 mb. Jet dynamics are very strong as a
result...850mb jet of 80-90 kts! GEFS ensemble guidance shows v
(southerly) component of the jet at 5-6 standard deviations above
normal. The EC isn't quite as bullish, but still very strong.
Regardless of the exact values, this together with a large moisture
plume (PWATs near 1.5" and dewpoints in the upper 50s) and cold
frontal forcing will bring widespread heavy rain to the region
starting Monday morning and exiting by the early hours of Tuesday.
While model soundings show enough of a slight inversion to keep the
very strong winds aloft as a whole, heavy downpours could bring
strong to damaging winds from aloft down to the surface. Convection
likely makes a return as well, with modest elevated instability (200-
500 J/kg CAPE) and strong shear (50-60 kts 0-6 km bulk shear).
Thunderstorm chances increase late Monday morning in western MA/CT
and move east through the day. The cold front then moves through
Monday night into Tuesday morning ushering in a drier and cooler
airmass. Rainfall totals look to be from 0.5-1.0" with locally
higher amounts possible under heavy downpours.
Tuesday through Thursday...
The low pressure exits into Quebec by daybreak on Tuesday leaving us
under a broad east coast trough through mid week. At the surface
high pressure edges its way east into the areas helping keep precip
away, and suppressing a storm system to our south over the Atlantic
on Wednesday. Overall a dry period is expected with the return of
cooler temperatures, down into the low 50s by Wednesday. Tuesday
will be dry but windy as CAA aids in mixing down some gusty west
winds, generally 20-30 mph. By Thursday another trough brings our
next shot of rain to the region.
&&
.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12z update...
Today ...
VFR this morning then some MVFR develops this afternoon along
with light scattered rain showers (snow showers high terrain).
West winds 15-20 kt with gusts up to 30 kt, possibly up to 40 kt
across the Islands. Wind shift from west to northwest around
21z.
Tonight ... Marginal MVFR/VFR with scattered evening rain
showers (snow showers high terrain) then drying trend late
evening and overnight. NW winds 10-15 kt gusting to 25kt then
diminishing overnight except remaining windy over Cape Cod and
Islands.
Saturday ... WNW winds 10-15 kt gusting to 25 kt. Dry with
VFR diurnal clouds.
KBOS Terminal...high confidence in the TAF.
KBDL Terminal...high confidence in the TAF.
Outlook /Saturday Night through Tuesday/...
Saturday Night: VFR.
Sunday: VFR. Breezy.
Sunday Night: Mainly VFR, with local MVFR possible. Breezy.
Chance SHRA.
Monday: Mainly VFR, with local IFR possible. Strong winds with
gusts up to 50 kt. SHRA likely, chance TSRA.
Monday Night: Mainly VFR, with local MVFR possible. Strong
winds with gusts up to 50 kt. Chance SHRA.
Tuesday: VFR. Breezy.
&&
.MARINE...
Today thru Saturday...
*** Gale Warnings Remain Posted ***
Powerful low pressure over Nova Scotia slowly weakens and moves
farther inland with time. NW winds 15-20 kt with gusts 30 to 40 kt
then not quite as strong tonight and Saturday, perhaps subgale
force. Other than a few scattered rain showers this afternoon and
evening, mainly dry weather and good vsby prevail.
Outlook /Saturday Night through Tuesday/...
Saturday Night through Sunday: Winds less than 25 kt. Seas
locally approaching 5 ft.
Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of rough seas. Chance of rain showers.
Monday: Low risk for storm force winds with gusts up to 50 kt.
Rough seas up to 18 ft. Rain showers, chance of thunderstorms.
Monday Night: Low risk for gale force winds with gusts up to
45 kt. Rough seas up to 18 ft. Chance of rain showers.
Tuesday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Rough seas up to 12 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Wind Advisory from noon today to 8 PM EDT this evening for
MAZ023-024.
RI...Wind Advisory from noon today to 8 PM EDT this evening for
RIZ008.
MARINE...Gale Warning until 8 PM EDT this evening for ANZ231-232-251.
Gale Warning until 3 AM EDT Saturday for ANZ233>235-237-250-
254>256.
Small Craft Advisory until 7 PM EDT this evening for ANZ230-
236.
&&
SYNOPSIS...Nocera/BW
NEAR TERM...Nocera/BW
SHORT TERM...Nocera
LONG TERM...BW
AVIATION...Nocera/BW
MARINE...Nocera/BWHazardous weather outlook, Apr 10, 4:21 AM EDT, 5 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Boston/Norton MA 421 AM EDT Fri Apr 10 2020 MAZ007-015-016-019-022-110830- Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth MA- Barnstable MA- 421 AM EDT Fri Apr 10 2020 This Hazardous Weather Outlook is for eastern Massachusetts, northeastern Massachusetts and southeastern Massachusetts. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ023-024-110830- Dukes MA-Nantucket MA- 421 AM EDT Fri Apr 10 2020 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeastern Massachusetts. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CTZ002>004-MAZ002>006-008>014-017-018-020-021-026-RIZ001>007-110830- Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Western Hampshire MA-Western Hampden MA- Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA- Western Norfolk MA-Southeast Middlesex MA-Northern Bristol MA- Western Plymouth MA-Southern Bristol MA-Southern Plymouth MA- Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI- Washington RI-Newport RI- 421 AM EDT Fri Apr 10 2020 This Hazardous Weather Outlook is for northern Connecticut, central Massachusetts, eastern Massachusetts, northeastern Massachusetts, southeastern Massachusetts, western Massachusetts, northern Rhode Island and southern Rhode Island. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. RIZ008-110830- Block Island RI- 421 AM EDT Fri Apr 10 2020 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southern Rhode Island. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ233>235-237-250-254>256-110830- Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 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- 421 AM EDT Fri Apr 10 2020 ...GALE WARNING IN EFFECT UNTIL 3 AM EDT SATURDAY... This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ231-232-251-110830- Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay- 421 AM EDT Fri Apr 10 2020 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230-236-110830- Boston Harbor-Narragansett Bay- 421 AM EDT Fri Apr 10 2020 This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For more information on upcoming hazardous weather, please see the Area Forecast Discussion on our webpage for the latest forecast thinking. There is also our Enhanced Hazardous Weather Outlook at www.weather.gov/box/ehwo For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov 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 |
|---|---|---|---|---|
| Apr 10, 3:54 AM EDT | Wind Advisory | BOX | Dukes, Nantucket | 16 hr |
| Apr 10, 4:15 AM EDT | Small Craft Advisory | BOX | 6 hr | |
| Apr 10, 7:52 PM EDT | Small Craft Advisory | BOX | 30 hr |
Nearby
Gale Warnings in Massachusetts, 2020Every gale warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.