A Winter Weather Advisory has been issued for MoCo from 7pm this evening until 10am Monday. 1-2 inches of snow and less than a tenth of an inch of ice is expected. I expect something to come out tonight that will either extend this or add something for Monday into Tuesday.

There have been changes with almost every run of every model. As it looks now, some winter precipitation will enter our area at some point between 8pm-11pm tonight and will continue into the morning before a flip to rain later in the morning.

In these images from NBC4 and WUSA9 (my apologies to Melissa Nord for the screen grab 😳😊), you’ll see that NBC expects about half of MoCo to be in the “most icy” zone and WUSA has about a third of MoCo in the “slick and dangerous” zone for the morning commute.

ABC7’s Alex Liggitt said he’s “not really expecting much, but enough for some travel disruptions into the morning commute” so not everyone thinks this will be a complete mess.

This is another situation where we aren’t expected to get a lot of precipitation, but the timing makes for another difficult decision for school systems.

I expect to have another update tonight, but check out the free iOS MoCoSnow app for predictions that include specific percentages for school delays and closings (updated as necessary throughout the day).

We’re also going to be doing this again tomorrow night because a similar situation is expected Monday night into Tuesday…possibly a bit icier than tomorrow morning!

MoCoSnow Prediction for Monday, 2/11 (Rating system is available in the “rating system” tab of the website):

If there’s wintry precipitation into the morning, I can’t see schools opening on time. If temps remain colder for a little longer, this can easily lead to a whole day off.

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Sunday-Tuesday Possibilities (with Pencil Prediction)

28 thoughts on “Sunday-Tuesday Possibilities (with Pencil Prediction)

  • 02/10/2019 at 11:21 am
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    Hello! I have been listening to your predictions from 2016/2017 and this prediction is probably one of the weirdest one. By that I mean how it’s 3 pencils with an even chance of a delay and closure. How’s Monday into Tuesday looking because I need school on Wednesday!

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    • 02/10/2019 at 11:26 am
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      Hey, I’m not sure what you mean by even chance.

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      • 02/10/2019 at 11:28 am
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        50% for delay, 40% for closure, it’s pretty close. Also, does that mean that delay is in play, or a more likely chance of closure than delay.

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        • 02/10/2019 at 11:31 am
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          The pencil Prediction is a very general prediction.

          The app predictions get a bit more specific, so they can’t really be covered by any one pencil prediction.

          As of now, on the app, it’s a 50% chance of at least a delay (50% chance of a full day) and a 40% of having chance of a day off.

          That will be updated as the day goes on.

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        • 02/10/2019 at 1:06 pm
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          I thought the same thing! Confused on this prediction, but sticking with the pencil descriptions (very likely for delay and 50% of a closure).

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  • 02/10/2019 at 2:21 pm
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    The information meeting for the Poolesville magnet programs is scheduled for tomorrow at 7 pm.
    Do you think it will have to be rescheduled? As of right now it’s supposed to be regular rain in the evening but would they cancel it just to be safe?

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    • 02/10/2019 at 2:23 pm
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      They may. We’ll see if temps end up any colder than expected

      Reply
  • 02/10/2019 at 2:35 pm
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    If we don’t have school tomorrow and Tuesday, will the county add days to the end of the year or take away from spring break?

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    • 02/10/2019 at 2:36 pm
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      Probably end of the year

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    • 02/10/2019 at 4:22 pm
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      Next snow day will be made up on June 5th. Then they start taking away the first 2 day of Spring Break. After that there is legally nothing they can do. We just don’t make them up

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      • 02/10/2019 at 4:23 pm
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        They’ve added time to the school day in the past

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      • 02/10/2019 at 7:24 pm
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        That’s no longer true. School districts now have the option to extend the year past June 15th if (and only if) they have had to use more than their allotted number of snow days.

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  • 02/10/2019 at 2:48 pm
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    Great! If there is a delay, do you think they would announce it tonight or at 5:00 AM tomorrow? I can’t wait for tonight’s prediction!!!

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    • 02/10/2019 at 3:03 pm
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      Probably tomorrow

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  • 02/10/2019 at 3:13 pm
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    I believe I read If we miss another day they will take away the work day scheduled for the 1st week in June. Which I don’t mind losing because we have never had a day in June like that before so I won’t miss it. Bring on one more snow day!

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    • 02/10/2019 at 3:40 pm
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      Incorrect. Last year in June there was a professional day so students didn’t go to school. Yeah you won’t miss it, but it HAS happened before.

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  • 02/10/2019 at 5:52 pm
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    @MocoSnow check out fox 5 for delays and closings. It says that PG county has a 2 hour early dismissal.

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    • 02/10/2019 at 5:54 pm
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      They don’t as of 5:54pm

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  • 02/10/2019 at 6:29 pm
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    Fox5 actually does list a couple of early closures. Perhaps those are for today, rather than tomorrow? Arlington is listed as having a 2 hour delay.

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    • 02/10/2019 at 6:31 pm
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      PG hasn’t announced anything for tomorrow. Fairfax has announced a delay (out of bordering counties)

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  • 02/10/2019 at 7:10 pm
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    Can I expect the new post to come before 9:00 PM?

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    • 02/10/2019 at 7:11 pm
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      I don’t know

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  • 02/10/2019 at 7:43 pm
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    Weather Channel has changed their accumulation forecast to 1-3 inches. And the snow and freezing rain will last for longer than originally thought. Does this affect the delay/closure chance?

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  • 02/10/2019 at 8:30 pm
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    Come on delay!!!

    Cute shirts, but can you explain the significance of #textorojo ?

    Reply
    • 02/10/2019 at 8:31 pm
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      The font is red when there’s “good news” in regards to school closings and delays.

      Reply
  • 02/10/2019 at 9:04 pm
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    will it snow tomorrow morning?

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  • 02/11/2019 at 8:16 am
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    Could they make a closer by 8:30 today

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    • 02/11/2019 at 8:18 am
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      It has happened before

      Reply

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