Point Forecast Updated Wed Nov 30, 2022 12:30am EST
A strong cold front approaches Wednesday bringing a period of heavy rain along with strong to potentially damaging wind gusts late Wednesday into Wednesday evening. Windy conditions continue on Thursday along with chilly temperatures. Another strong cold front will bring a period of rain and strong wind gusts Saturday into Saturday evening with dry and blustery conditions returning on Sunday. More showers are possible sometime Monday into Tuesday.
Lo 28 °F
Mostly cloudy, with a low around 28. Southeast wind around 3 mph.
Cloudy then Heavy Rain
Hi 58 °F
Rain after noon. Cloudy, with a high near 58. Southeast wind 6 to 22 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain then Mostly Cloudy
Lo 33 °F
Rain before 8pm, then a chance of rain showers between 8pm and 10pm. Mostly cloudy, with a low around 33. Southwest wind 14 to 24 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Hi 40 °F
Sunny, with a high near 40. West wind 14 to 23 mph, with gusts as high as 46 mph.
Lo 27 °F
Mostly clear, with a low around 27. West wind 5 to 18 mph, with gusts as high as 38 mph.
Hi 46 °F
Sunny, with a high near 46. Southwest wind 3 to 7 mph.
Lo 36 °F
Mostly cloudy, with a low around 36. Southwest wind around 9 mph.
Rain Showers Likely
Hi 57 °F
Rain showers likely after 8am. Mostly cloudy, with a high near 57. Southwest wind 9 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Chance Rain Showers
Lo 36 °F
A chance of rain showers before 2am. Partly cloudy, with a low around 36. West wind 9 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Hi 45 °F
Sunny, with a high near 45. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Lo 29 °F
Partly cloudy, with a low around 29. West wind around 5 mph.
Chance Light Rain
Hi 46 °F
A chance of rain after 11am. Partly sunny, with a high near 46. Southwest wind 2 to 6 mph. Chance of precipitation is 30%.
Chance Light Rain
Lo 37 °F
A chance of rain. Mostly cloudy, with a low around 37. Southeast wind around 3 mph. Chance of precipitation is 40%.
Chance Light Rain
Hi 52 °F
A chance of rain. Mostly cloudy, with a high near 52. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Updated Wed Nov 30, 2022 12:30am EST
000 FXUS61 KBOX 300606 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 106 AM EST Wed Nov 30 2022 .SYNOPSIS... A strong cold front approaches Wednesday bringing a period of heavy rain along with strong to potentially damaging wind gusts late Wednesday into Wednesday evening. Windy conditions continue on Thursday along with chilly temperatures. Another strong cold front will bring a period of rain and strong wind gusts Saturday into Saturday evening with dry and blustery conditions returning on Sunday. More showers are possible sometime Monday into Tuesday. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... 950 PM Update... Previous forecast is on track. High pressure slowly moves off the coast overnight as a strong shortwave digs eastward across the Great Lakes. This will allow a southerly LLJ and warm advection processes to kick in aloft; resulting in low-mid level cloudiness increasing particularly towards daybreak. Current temps only a touch below the expected lows in the outlying locations. Lows should bottom out in the middle 20s to the lower 30s across the typically colder spots. Temps will level off and even rise overnight...particularly along the immediate coast toward daybreak as southeast winds allow all these locations to warm into the 40s. && .SHORT TERM /6 AM THIS MORNING THROUGH 6 PM THURSDAY/... Tomorrow and Tomorrow Night... * Showers develop ahead of an approaching cold front tomorrow. * Strong cold front pushes through the region tomorrow evening with moderate to heavy rainfall and potentially damaging wind gusts. Winds increase out of the south throughout the day tomorrow as a very strong surface cold front approaches from the west. WAA related precipitation will overspread southern New England from west to east beginning late tomorrow morning. Precip gradually spreads east and reaches the coast by early afternoon. Winds begin to ramp up just ahead of the front by mid-afternoon tomorrow. Impressive low-level jet with 70 knots at 925 hPa will support surface wind gusts from 40 to 50 mph across much of southern New England. A wind advisory will go into effect for the entirety of southern New England beginning at 11AM for western MA/CT and 1PM for the rest of southern New England. Heaviest rainfall will occur between roughly 3 and 10 PM as the leading edge of the cold front pushes through the region. This will also coincide with the period of strongest wind gusts. The front exits east of the region by 10 PM bringing an end to precipitation and the strongest winds. West/northwest winds remain fairly gusty tomorrow night, especially across the higher terrain of western MA where the advisory will remain in effect through Thursday afternoon. There is a likelihood that the atmosphere decouples for a short time tomorrow night. Thus, there will likely be a period where wind gusts are sub-advisory level. Gusts will pick back up as the sun rises on Thursday morning. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... Highlights... * Strong winds continue on Thursday, diminishing overnight * Dry and seasonable Friday, then another round of rain and strong winds move in Saturday and Saturday evening with mild conditions * Dry and blustery Sunday * Another period of showers possible sometime Monday into Tuesday Thursday into Friday... Deep trough lifts out Thu with very dry air moving in under W/NW flow with PWATs decreasing to less than 0.25". Some diurnal clouds are expected under the cold pool aloft, especially interior otherwise partly to mostly sunny skies. Strong west wind gusts will be the main story for Thu. A deep and very well mixed boundary layer with 1000-850 mb lapse rates approaching dry adiabatic will help to bring down a lot of the 850 mb winds. The strongest wind gusts up to 45-55 mph will be focused across the higher terrain in MA with 30-40 mph gusts closer to the south coast. Wind advisories will continue for central and western MA. Below normal temps with highs upper 30s to lower 40s elsewhere. Gusty winds Thu evening will gradually diminish overnight then shift to SW during Fri as high pres moves off the mid Atlc coast. Temps moderate a bit Friday to near seasonable normals under abundant sunshine as high pres moves off the mid Atlc coast. Saturday into Sunday... Another robust mid level shortwave and strong cold front will be approaching from the Gt Lakes. This will bring another round of showers Sat into Sat evening along with gusty pre-frontal SW winds. The low level jet is a bit weaker than tomorrow evening's jet but mixing potential is greater so could see advisory level wind gusts, especially across SE New Eng. SW flow will bring mild air into SNE Sat with temps reaching into the 50s with some 60+ degree readings possible across RI and eastern MA. The cold front sweeps across SNE Sat evening bringing an end to the rain, followed clearing skies overnight through Sunday as much drier air moves in. Blustery conditions Sun with near seasonable temps. Monday into Tuesday... Active pattern continues in developing strong -NAO pattern as anomalous Greenland ridge develops. Broad but deepening upper trough sets up over central Canada to northern Plains with shortwave energy approaching from the west. At this time, an inland storm track is favored given strength of SE ridge and SW flow aloft which suggests mainly rain for ptype. The most uncertainty is with respect to the timing of rainfall. ECMWF is dry into Tue while GFS/Canadian are wet. EPS ensembles support a mainly dry day Mon then unsettled and wet Mon night/Tue. It will likely take a few more days to pin down the timing. && .AVIATION /06Z WEDNESDAY THROUGH SUNDAY/... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. 06Z TAF Update... Today & Tonight...High Confidence in trends with moderate confidence in timing. Low end VFR-MVFR conditions very early this morning will trend towards mainly MVFR with localized IFR conditions as the morning wears along. The exception will be near and especially southeast of the Boston to Providence corridor...where VFR conditions may linger at times into the afternoon. Band of widespread rain arrives later today from west to east...roughly between 16z and 20z and briefly fall heavy resulting in low end MVFR-IFR conditions along with some LLWS. Southerly winds will pickup as well with brief 35 to 45 knot wind gusts sweeping across the region. The back edge of the rain will quickly cross the area between 22z and 02z with a wind shift to the W and another brief period of 35-45 knot wind gusts. VFR conditions quickly return to all areas by mid to late evening. W winds will still gust to between 20 and 30 knots and up to 35 knots in a few of the typical spots that tend not to decouple. Thursday...High Confidence. VFR conditions despite W wind gusts of 30 to 40 knots with the strongest of those winds north of the CT/RI border. A few gusts up to 45 knots are possible in portions of western and central MA. Outlook /Thursday Night through Sunday/... Thursday Night: VFR. Windy with areas of gusts up to 30 kt. Friday: VFR. Friday Night: VFR. Breezy. Saturday: Mainly MVFR, with local IFR possible. Windy with gusts up to 35 kt. Chance SHRA. Saturday Night: Mainly VFR, with areas MVFR possible. Windy with gusts up to 35 kt. Chance SHRA. Sunday: VFR. Breezy. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Tonight through Tomorrow Night High pressure supports relatively quiet conditions across the coastal waters tonight. Winds will gradually strengthen out of the southeast early tomorrow morning as the pressure gradient strengthens in response to an approaching cold front. Gale force winds develop by tomorrow afternoon as a strong cold front pushes over the coastal waters with moderate to heavy rainfall. Winds shift to the west/northwest behind the front tomorrow evening and continue to produce gale force gusts through Thursday afternoon. Outlook /Thursday Night through Sunday/... Thursday: Strong winds with gusts up to 35 kt. Rough seas up to 10 ft. Thursday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Friday: Winds less than 25 kt. Seas locally approaching 5 ft. Friday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Saturday: Strong winds with gusts up to 30 kt. Areas of rough seas. Rain showers likely. Saturday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 10 ft. Chance of rain showers. Sunday: Winds less than 25 kt. Areas of rough seas. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...Wind Advisory from 11 AM this morning to 9 PM EST this evening for CTZ002>004. MA...Wind Advisory from 11 AM this morning to 5 PM EST Thursday for MAZ002-003-008>011. Wind Advisory from 1 PM this afternoon to 5 PM EST Thursday for MAZ004-012-026. Wind Advisory from 1 PM this afternoon to 1 AM EST Thursday for MAZ005>007-013>024. RI...Wind Advisory from 1 PM this afternoon to 1 AM EST Thursday for RIZ001>008. MARINE...Gale Warning from 1 PM this afternoon to 7 PM EST Thursday for ANZ230>237-250-251-254>256. && $$ SYNOPSIS...KJC/RM NEAR TERM...Frank SHORT TERM...KJC LONG TERM...RM AVIATION...Frank/KJC MARINE...KJC/RM
Zone forecast: https://api.weather.gov/zones/forecast/MAZ014/forecast
Hourly forecast: https://api.weather.gov/gridpoints/BOX/64,91/forecast/hourly
Hourly detail: https://api.weather.gov/gridpoints/BOX/64,91
Point detail: https://api.weather.gov/points/42.435,-71.2461