DAYS 1-5 (JANUARY 9-13)<\/p>\n\n\n\n
After a briefly colorful sunrise for eastern areas today, clouds advance and grey the sky in advance of our next storm system, which will have quite a different personality than its predecessor. Low pressure which sat in the southern Plains early this morning will race northeastward through the Great Lakes and down the St. Lawrence Valley in the next 24 hours. This system’s impact here will be significant, occurring mostly between dusk today and dawn tomorrow, so let’s break down the aspects of it…<\/p>\n\n\n\n
Snow: The only minor part really, and it can start as snow this evening anywhere from the Boston area north and west, with 1 to 3 inches in the higher elevations of central MA to southwestern NH and no appreciable accumulation elsewhere. This will be short-lived, with rain quickly taking its place.<\/p>\n\n\n\n
Rain: Heaviest rain comes in the 6 hours between midnight and dawn, and there may be embedded thunder. General rain amounts of 1 to 3 inches. <\/p>\n\n\n\n
Flooding: The potential for this is actually highest over interior areas where the rain potential is highest (2-3 inches) and the snow pack is deepest, with lots of melting of that to combine with the heavy rainfall. Poor drainage flooding will be nearly immediate, small stream flooding follows quickly after, and river flooding follows soon after and may last up to several days. Coastal flooding will be much less of an issue with just some high tide splash over in prone areas.<\/p>\n\n\n\n
Wind: The greatest potential for damaging wind gusts resides along the coast, both the South Coast and the East Coast, and the wind potential drops off quite a bit inland. Ironically, the same snow pack that can enhance flooding over inland locations can act to limit the strong wind due to an inversion that forms because of the “refrigeration” near the surface, creating a barrier in which the strong wind just above struggles to mix down to the surface through the colder layer there. So wind gusts should be much less the further inland you go.<\/p>\n\n\n\n
Power outages: Highest potential will be where winds are strongest – east of I-95, but cannot rule out isolated outages in locations to the west as well.<\/p>\n\n\n\n
Post storm… During the day on Wednesday, we\u2019ll be in a southwest to west wind flow, a little less strong than during the storm, but still notably gusty. Much of the ground should dry out during the afternoon but any remaining water can freeze Wednesday night \/ early Thursday as the temperature drops, so keep note of that if you need to be out walking or driving and can come across any of these slippery surfaces. As for Thursday’s weather, a disturbance and cold front passing by during the afternoon or evening can trigger a rain or snow shower. Friday starts with sun which is followed by clouds as the next storm system approaches. This one brings a round of precipitation Friday night into Saturday. The majority of this storm looks like more of a rain event for the bulk of the region, but as I believe guidance may not be completely correct in resolving this storm’s track just yet, we have to keep in mind there is the chance that the system is further south, we are colder, and there is at least some frozen precipitation involved for some areas for part of the event, so the forecast wording will reflect this by being intentionally vague. Fine-tuning will follow in future posts.<\/p>\n\n\n\n
TODAY: Clouds thicken. Highs 36-43. Wind calm becoming SE 5-15 MPH.<\/p>\n\n\n\n
TONIGHT: Overcast. Rain arriving evening except a period of snow possible Boston area and probable northwest of Boston where 1-3 inches can fall in higher elevations of central MA to southwestern NH. Moderate to heavy rain and a chance of thunder overnight. Lows 32-39 evening, then rising temperature overnight. Wind SE increasing to 25-35 MPH, gusts 45-55 MPH inland and 55-65 MPH coast, with peak gusts 65-70 MPH possible in a few coastal locations.<\/p>\n\n\n\n
WEDNESDAY: Sun\/cloud mix. Highs 50-57. Wind SW 15-35 MPH, higher gusts.<\/p>\n\n\n\n
WEDNESDAY NIGHT: Partly cloudy. Lows 30-37. Wind W 10-20 MPH.<\/p>\n\n\n\n
THURSDAY: Partly cloudy. A late-day rain or snow shower possible. Highs 40-47. Wind W 10-20 MPH.<\/p>\n\n\n\n
THURSDAY NIGHT: Partly cloudy with an early snow shower possible, then clearing. Lows 25-32. Wind NW 5-15 MPH.<\/p>\n\n\n\n
FRIDAY: Sun followed by clouds. Highs 36-43. Wind W 5-15 MPH.<\/p>\n\n\n\n
FRIDAY NIGHT AND SATURDAY: Cloudy. Rain\/mix\/snow likely. Lows 30-37. Highs 37-44. Wind variable 10-20 MPH, higher gusts possible.<\/p>\n\n\n\n
DAYS 6-10 (JANUARY 14-18)<\/p>\n\n\n\n
Watching storm threats January 15-16 and January 17-18 but guidance may be “confused” as to which disturbance to key on, so will work this out soon. Temperatures variable but near to slightly above normal for the period.<\/p>\n\n\n\n
DAYS 11-15 (JANUARY 19-22)<\/p>\n\n\n\n
Colder trend with a potential messy storm before the period is over.<\/p>\n","protected":false},"excerpt":{"rendered":"
DAYS 1-5 (JANUARY 9-13) After a briefly colorful sunrise for eastern areas today, clouds advance and grey the sky in advance of our next storm system, which will have quite a different personality than its predecessor. Low pressure which sat in the southern Plains early this morning will race northeastward through the Great Lakes and … Continue reading Tuesday January 9 2024 Forecast (7:53AM)<\/span>