This article is from the source 'washpo' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.washingtonpost.com/local/second-wave-of-storm-snow-accumulation-possible-through-tonight-pm-commute-could-be-slick-updates/2015/01/26/3e0bfd75-4341-4c94-a0e5-9251796a089d_story.html?wprss=rss_homepage

The article has changed 8 times. There is an RSS feed of changes available.

Version 2 Version 3
Storm’s second wave: Snow accumulation possible through tonight, PM commute could be slick (UPDATES) Storm’s second wave: Snow accumulation possible through tonight, PM commute could be slick (UPDATES)
(about 1 hour later)
* Winter weather advisory through 10 a.m. Tuesday ** Winter weather advisory through 10 a.m. Tuesday *
1:10 p.m. update: Outside of D.C.’s northern suburbs, where light snow and mixed precipitation is falling, there’s a lull in the precipitation. As the afternoon wears on, we should keep an eye to the east and northeast to see if bands start to redevelop, and rotate southwestward. This will happen as the coastal storm – already developing (see the falling pressures off the coast in the image below) – cranks up.
Pressures off Mid-Atlantic coast falling about 1mb per hour now. pic.twitter.com/9EIH3Lj3X2 — Anthony Sagliani (@anthonywx) January 26, 2015
Pressures off Mid-Atlantic coast falling about 1mb per hour now. pic.twitter.com/9EIH3Lj3X2
— Anthony Sagliani (@anthonywx) January 26, 2015
Temperatures at 1 p.m. are mostly in the low 30s (although Reagan National Airport – frequently a warm spot – reports 35). Such temperatures near the freezing mark are not an issue during the middle of the day – and roads are mostly just wet. But I am concerned about slick spots becoming common on untreated roads late this afternoon and this evening as the sun goes down, temperatures fall a few degrees, and snow bands potentially re-develop.
Noon update: A band of snow from D.C. to near Laurel continues to drift northeast. It is reducing the visibility in spots and even coating some side roads on its north side. After it passes, we’ll likely see snow intensity diminish and our southern suburbs may continue to have just spotty mixed precipitation. However, new waves of snow should build as the afternoon wears on. Late afternoon into this evening is the time period we’re most concerned about for the possibility of meaningful accumulating snow that could cause travel issues.Noon update: A band of snow from D.C. to near Laurel continues to drift northeast. It is reducing the visibility in spots and even coating some side roads on its north side. After it passes, we’ll likely see snow intensity diminish and our southern suburbs may continue to have just spotty mixed precipitation. However, new waves of snow should build as the afternoon wears on. Late afternoon into this evening is the time period we’re most concerned about for the possibility of meaningful accumulating snow that could cause travel issues.
@capitalweather coming down pretty good in Laurel. pic.twitter.com/yc6ATpLQ0E — michael curtin (@mcurtin00) January 26, 2015@capitalweather coming down pretty good in Laurel. pic.twitter.com/yc6ATpLQ0E — michael curtin (@mcurtin00) January 26, 2015
@capitalweather coming down pretty good in Laurel. pic.twitter.com/yc6ATpLQ0E@capitalweather coming down pretty good in Laurel. pic.twitter.com/yc6ATpLQ0E
— michael curtin (@mcurtin00) January 26, 2015— michael curtin (@mcurtin00) January 26, 2015
@capitalweather snow now sticking to sidewalks in downtown Silver Spring. pic.twitter.com/wkAmzIyXzH — Starlight Geek (@starlightgeek) January 26, 2015@capitalweather snow now sticking to sidewalks in downtown Silver Spring. pic.twitter.com/wkAmzIyXzH — Starlight Geek (@starlightgeek) January 26, 2015
@capitalweather snow now sticking to sidewalks in downtown Silver Spring. pic.twitter.com/wkAmzIyXzH@capitalweather snow now sticking to sidewalks in downtown Silver Spring. pic.twitter.com/wkAmzIyXzH
— Starlight Geek (@starlightgeek) January 26, 2015— Starlight Geek (@starlightgeek) January 26, 2015
Original post from 11:05 a.m.Original post from 11:05 a.m.
The first wave of the storm this morning may have been underwhelming, dropping just coating or so of snow in the immediate metro area. But this wave is transferring its energy into a new bigger storm off the coast, causing snow to redevelop over the area through the afternoon and continuing, at times, overnight. This is the same storm forecast to wallop the Northeast with one to three feet of snow.The first wave of the storm this morning may have been underwhelming, dropping just coating or so of snow in the immediate metro area. But this wave is transferring its energy into a new bigger storm off the coast, causing snow to redevelop over the area through the afternoon and continuing, at times, overnight. This is the same storm forecast to wallop the Northeast with one to three feet of snow.
Temperatures near freezing and snow could make for a difficult rush hour. Although snow has mostly not stuck on roads so far, as the day wears on, falling temperatures could change that.Temperatures near freezing and snow could make for a difficult rush hour. Although snow has mostly not stuck on roads so far, as the day wears on, falling temperatures could change that.
Our general forecast is for a coating to 2 inches from this second wave, although some new model information coming suggests the upper end of that range may be likely and that the “boom” scenario (of 2-4 inches) is in play – especially along and east of I-95.Our general forecast is for a coating to 2 inches from this second wave, although some new model information coming suggests the upper end of that range may be likely and that the “boom” scenario (of 2-4 inches) is in play – especially along and east of I-95.
Some localized moderate to heavy snow bands are possible – especially late this afternoon into this evening. It is difficult to say exactly where and when these bands will set up, so stay tuned for updates.Some localized moderate to heavy snow bands are possible – especially late this afternoon into this evening. It is difficult to say exactly where and when these bands will set up, so stay tuned for updates.
We encourage you to allow extra time for the commute home and consider leaving either early or late.We encourage you to allow extra time for the commute home and consider leaving either early or late.