A winter weather advisory is in now in effect for all of MoCo until 4am Saturday morning for C/SE MoCo and until 1am for NW MoCo.
MCPS UPDATE: MCPS Schools Close on Time; After-School and Evening Activities Canceled, Today, Jan. 28. Montgomery County Public Schools will close at the regularly scheduled time today. All after-school and evening school and community activities in school buildings are canceled. Childcare programs in school buildings may remain open as scheduled.
A Winter Weather Advisory has been issued for SE Montgomery County from 4pm today until 4am tomorrow.
Per the National Weather Service:
The most recent maps from the National Weather Service shows quite a difference from their “reasonable worst case scenario” to the “low end amount” showing just how much uncertainty there is with this storm.
With so much uncertainty, timing beyond “Friday into Saturday” will become a bit clearer tomorrow.
The National Weather Service has released its first maps regarding potential snowfall this Friday into Saturday. (At approximately 4:30am and updated at 9:30am).
The expected snowfall map MoCo shows 2-3 inches for almost all of MoCo with just a few areas at 3-4 inches:
We remain in the “slight winter storm” threat category for potential winter weather this Friday into Saturday, according to the National Weather Service.
As we mentioned in yesterday’s update, this thing can go either way…and it already has. The GFS showed a major storm, took it away, brought it back, took it away (late yesterday), and has kind of brought it back again this morning with the model output showing a general 2-4″ for our area. The Euro didn’t show much, then started bringing the storm our way, took it away, and brought it back overnight for a model output of a general 4-6″ for our area.
For the last few days we’ve been tracking a storm that’ll be headed up the coast Friday evening into Saturday.
Early on, the GFS had the coastal storm bringing snow our way, but eventually moved it out east, missing us with most of the moisture. Recent runs have tended west, putting us back into play for measurable snow. The Euro didn’t have this storm coming our way, but has also trended in the favor of snow lovers, though not as much as the GFS.
The National Weather Service expects “scattered to numerous” snow showers this afternoon through this evening and into tonight.
Per the NWS, snow could coat the ground in some areas, especially north of I66 and US 50 in Northern Virginia:
The National Weather Service has canceled the Winter Weather Advisory for C/SW MoCo, but the advisory remains in effect for NW MoCo until 11am.
The advisory now calls for up to an inch of snow to accumulate on grassy surfaces.
A Winter Weather Advisory remains in effect for us tomorrow morning. From 4am in Upper MoCo and 6am in C/SW MoCo until 11am.
The National Weather Service has once again slightly increased its latest maps. About two thirds of MoCo is in the 2-3” range with a third in the 1-2” range. The “reasonable worst case scenario” map now shows up to 4 inches possible.
A winter weather advisory has been issued for MoCo starting 6am Thursday morning and going until 1pm (4am until 1pm for Upper MoCo).
The latest National Weather Service maps show most of MoCo in the 1-2” range with the upper third of the county in the 2-3” range. The “reasonable worst case scenario” map shows 3 inches for the entire county.
The National Weather Service updated its maps overnight, increasing potential snow totals for most of the area.
Per the maps, all of MoCo is in the 1-2” range for snowfall tomorrow morning. The “reasonable worst case scenario” map is now at just about 2 inches so confidence is increasing for 1-2” all around.