What Boston meteorologists are saying about the timing and impacts of Tuesday’s storm

Accumulating snow is expected late tonight-Tue. The snow is expected to change to sleet & freezing rain around midday along and a bit west of I-95 corridor, and to plain rain S&E of I-95 in the morning. Total snow accum will be 1-3" south of the MA Pike and 3-5" to the north. pic.twitter.com/KFd63fMq26

— NWS Boston (@NWSBoston) January 15, 2024

Most recent simulation of radar/precipitation type for today. Keep in mind this is a simulation and the actual outcome will differ from what is displayed, but this animation provides a good estimate of what can be expected this morning and afternoon. pic.twitter.com/7v7I0P85E8

— NWS Boston (@NWSBoston) January 16, 2024

We can use Correlation Coefficient to better analyze the rain/snow line.

Snow was mixing w/rain & sleet along the south coast while parts of Outer Cape Cod & Islands were mainly rain. This changeover line will head north this morning, roughly to Providence & Boston by midday. pic.twitter.com/bwsLhFovqC

— NWS Boston (@NWSBoston) January 16, 2024

HIGHS TODAY…
Big range in temps as cold air remains locked in to north but the storm pulls in milder air from the ocean. Temps jump to 40° or higher in far SE MA as we change to rain this afternoon. Colder air will rush back in behind the storm this evening- will be slick #WCVB pic.twitter.com/60qwLyxUGH

— Cindy Fitzgibbon (@Met_CindyFitz) January 16, 2024

SNOW TODAY…
Highest amounts expected N&W of 128 where the change to sleet and rain will be slower allowing for 3-5" snow. Elsewhere generally 1-3" then sleet and rain on top. Temps will climb >40° Plymouth to Cape/Islands washing away the snow #WCVB pic.twitter.com/NEIym53zGH

— Cindy Fitzgibbon (@Met_CindyFitz) January 16, 2024

ICY GLAZE…
Likely on top of the snow this afternoon as we change over to sleet and freezing rain for a time. Any ice accretion is under .10" but enough to make it slippery #WCVB pic.twitter.com/irQucwWc7S

— Cindy Fitzgibbon (@Met_CindyFitz) January 16, 2024

NEXT 7 DAYS…
Once today's snow and icy mix moves out we will stay dry and cold for a couple of days. A storm developing offshore Friday *may* come close enough to bring some more snow- watching track. Another surge of cold, dry air follows for the weekend. #WCVB pic.twitter.com/NwMua3pV4J

— Cindy Fitzgibbon (@Met_CindyFitz) January 16, 2024

7AM snow map refresh… Remember, that snow in southeastern MA will turn to rain later this morning, which is why totals will stay lower. @boston25 #mawx #nhwx pic.twitter.com/3LD0n9Feiq

— Shiri Spear (@ShiriSpear) January 16, 2024

Southeastern MA will flip to rain this afternoon. But a mix of snow, sleet, and freezing rain is expected from northeastern MA to RI and CT. Light snow will continue all day inland. @Boston25 pic.twitter.com/lcStKUx92K

— Shiri Spear (@ShiriSpear) January 16, 2024

Good news… no coastal flooding, no flooding rains, no wind damage/power outages with this one. Slick/slow travel the main issue. pic.twitter.com/Tm2k736zZn

— Chris Lambert (@clamberton7) January 16, 2024

Light to pockets of moderate snow through the morning. 20s to low 30s. Mixed with freezing rain and rain along the south coast mid to late morning. pic.twitter.com/QkncL2ieqI

— Chris Lambert (@clamberton7) January 16, 2024

Light snow to a light mix of freezing rain/rain near and east of I-95 this afternoon. Stays mostly snow out near/northwest of 495. pic.twitter.com/8ltv8LlTZK

— Chris Lambert (@clamberton7) January 16, 2024

Temps dip back below freezing near/east of I-95 early this evening. Watch for redeveloping icy spots then in those areas. Snow tapers off early this evening. pic.twitter.com/hDNytj0nvz

— Chris Lambert (@clamberton7) January 16, 2024

2-3" of snow for many towns/cities today. Highest #s in northern Worcester County/southern NH. 3-4" widespread there, few spots around 5". pic.twitter.com/YQQCZDuv1H

— Chris Lambert (@clamberton7) January 16, 2024

Cold pattern this week. Coldest over the weekend. pic.twitter.com/SXJo4OsvyF

— Chris Lambert (@clamberton7) January 16, 2024

Finally! A good week for those backyard skating rinks. Cold air start to finish. pic.twitter.com/UVINHpUvy1

— Chris Lambert (@clamberton7) January 16, 2024

2-4” of snow through the day, some mix with rain/freezing rain later this am/afternoon. ⁦@7News⁩ pic.twitter.com/9QAXXLtE2i

— Chris Lambert (@clamberton7) January 16, 2024