The guesses are still all over the map as to just how much snow we'll get out of this storm. What does seem apparent is that we will get a brief return to normal February temperatures (low 40s) Monday, followed by, perhaps, some rain, then falling temperatures overnight Monday into Tuesday with rain changing to snow overnight, then snow for Tuesday into Wednesday, and maybe longer.

Just how much we get depends on whose computer models you want to believe, and which track the storm finally decides to take.

Here is the National Weather Service forecast for Baltimore. They have posted a Hazardous Weather Outlook statement. Here's a bit of their discussion late Saturday (edited by me for clarity):

"(COMPUTER GUIDANCE) SUGGESTS THAT BOUNDARY LAYER TEMPS COULD BE
WARM ENOUGH FOR RAIN EAST OF MOUNTAINS LATE MONDAY...CHANGING TO SNOW OVERNIGHT. SUSPECT
EFFECTS OF COLD AIR DAMMING NOT BEING CONSIDERING IN GUIDANCE SOLUTIONS. (MEANING THE COMPUTERS MAY NOT BE TAKING THE ENTRENCHED COLD AIR INTO ACCOUNT IN THEIR TEMPERATURE FORECASTS)

AS MAIN SYSTEM APPROACHES TUES ...THIS GUIDANCE CYCLE... SUGGESTS THAT CHANCE FOR MIXED PRECIPITATION SPREADS AS FAR NORTH AS
(WASHINGTON) TUES. (COMPUTER MODEL) THEN POINTS TO A LOCATION NEAR
MASON- DIXON LINE FOR BEST BANDED (HEAVY) PRECIPITATION TUES AFTERNOON...

(STORM) SYSTEM HAS POTENTIAL TO PAINT SOME GOOD SNOW
TOTALS...BUT IT'S STILL TO BE DETERMINED EXACTLY WHERE THAT WILL BE. WE NEED ANOTHER
(COMPUTER) RUN /OR TWO/ ... BEFORE HEADLINES CAN BE RAISED."

And here's AccuWeather's take. One of their bloggers is guessing a foot of snow for Baltimore and Washington. But I wouldn't take that to the bank. Yet.