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FORECAST IN DETAIL
If you hadn’t heard, we’ve been trying to predict a rather unpredictable storm. We’re leaning toward a low-impact scenario based on the latest information, with some light snow possible during the day tomorrow, but having a tough time sticking to roads or sidewalks. Things could still change a bit, however. First things first, though, as we start with a partly sunny and enjoyable Sunday.
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Today (Sunday): It’s the proverbial calm before the storm, as we’re looking at a partly sunny and overall fine day to close out the weekend. We’ll see morning temperatures climb through the 30s to near 40, with afternoon highs in the upper 40s to near 50, and just a hint of a breeze from the north at about 5 mph. Enjoy that extra hour of evening daylight as the sun sets about 7:10 p.m. Confidence: Medium-High
Tonight: The approaching storm sends partly to mostly cloudy skies our way this evening and overnight. Any snow looks like it holds off until around or after sunrise, but we’ll keep a slight chance for some light snow showers to break out before dawn. Winds are light from the northeast, and lows drop down to near 30 to the mid-30s. Confidence: Medium-High
Tomorrow (Monday): Heavier snow lurks to the south and southwest but may have trouble moving into the Washington area in a meaningful way. This has been a difficult forecast and could still change a bit. For now, we’re favoring a low-impact scenario, with areas of light snow possible but having a tough time sticking to roads and sidewalks, given temperatures rising through the 30s to near 40 and the strengthening March sun. That said, can’t rule out a bit of road slush if we get an early-morning burst of snow. Grassy accumulations could total a dusting to about an inch. We’ll of course be watching the models today in case things trend colder and snowier. Confidence: Low-Medium
Tomorrow night: Snow showers may linger into the evening before exiting to the east. Temperatures should still be above freezing, but again a bit of road slush isn’t out of the question if we get a heavier evening burst of snow. The storm then moves off and becomes New England’s problem, leaving us with partial clearing and overnight lows in the upper 20s to low 30s. Confidence: Medium
A LOOK AHEAD
In what has been the calling card of this D.C. winter, winds pick up Tuesday and Wednesday as the storm intensifies off the Northeast and New England coast. Partly to mostly sunny skies look warmer than it is, with highs only reaching the low to mid-40s and winds gusting from the west-northwest near or past 30 mph. A few flurries or a snow shower may flutter past from time to time as well. Tuesday night and Wednesday night are partly to mostly clear with lows in the upper 20s to low 30s. Confidence: Medium-High
SNOW POTENTIAL INDEX
A daily assessment of the potential for at least an inch of snow in the next week, on a 0-10 scale.
5/10 (→): Someone could get an inch Monday in the Washington metro area, but at this point it seems more likely on grass than anywhere else.
Dan Stillman contributed to this forecast.