Most of the area should see just rain through around 8 a. If the first upper-level impulse were to weaken quickly enough, then the first low might stall and wait for the second, much stronger upper-level disturbance that is forecast to amplify and strengthen as it moves east. Highs in the upper 60s and lows in the upper 50s. The severe thunderstorms will be capable of producing large hail, damaging winds and tornadoes including a few strong tornadoes possible tonight while the heavy rain may be excessive at times and produce both flash and river flooding. Note that the snow map above is only for the first wave.
. But areas farther north and west such as Loudoun, Frederick and northern Montgomery counties could change to snow or a wintry mix by 5 a. If that second low developed quickly enough and tracked far enough north, we could see light to moderate snow on Wednesday. However, there are a couple of other complicating factors that argue against completely dismissing our snow prospects. Highs in the mid 70s and lows in the mid 60s.
There is a smaller chance, but not impossible, that a heavier burst of snow or wintry mix between late morning and late afternoon on Tuesday cools temperatures enough for everyone to get a period of more significant accumulation both on grass and roads, especially north and west of the Beltway, but even some areas inside the Beltway and to the south and east. Whatever we get has a decent chance of sticking area-wide and could disrupt the Wednesday morning commute, before tapering off by midday Wednesday. Parts of the forecast have come into better focus, while significant questions still remain. Highs in the mid 60s and lows in the mid 50s. This spreads southerly winds at around 5,000 feet across the area ahead of the storm, providing just enough warming aloft to push the rain-snow line to our north for much of the storm. Wes Junker March 18, 2018 9 p. Slight chance of a rain shower.
Multi-Day Severe Weather And Heavy Rain Event To Shift From Southern Plains to Lower Mississippi River Valley Through Thursday A multi-day severe weather and heavy rain threat will continue into tonight in the Southern Plains shifting east to the Lower Mississippi River Valley for Thursday. It produces our initial storm and is the impetus for the models pulling the low out to sea. The first is forecast to weaken rapidly as it approaches the region. Wednesday and, if so, would probably be mainly snow with temperatures in the low 30s. In this scenario, total snow accumulations would most probably range from a trace to two inches from southeast to northwest across the metro area, with higher amounts far to the northwest, as shown in our map below.
Highs in the low 70s and lows in the mid 50s. Model depiction of rain, snow and a wintry mix across the Washington area on Tuesday afternoon. Jason Samenow contributed to this post. It is becoming more likely that our far north and western areas have a good chance for a significant snowfall, especially toward the Interstate 81 corridor. The chance of significant accumulating snow in and around the city has been slowly frittered away by low pressure tracking a tad too far north as it approaches from the west. Precipitation may pick up again around 4 to 8 a.
It offers the potential to initiate a second surface low near the North Carolina coast. Please upgrade your browser to improve your experience. The rain is likely to change to snow earliest Tuesday morning north and west of the city, where minor accumulations are likely, probably on the order of a dusting to 2 inches except where higher terrain might enhance accumulations a bit. The fact that precipitation is unlikely to change to snow until during the day on Tuesday is a downer for snow lovers — this late in March, your best bet for accumulating snow is overnight into the early morning. We lean toward model information that shows periods of rain or wintry mix into the afternoon, with temperatures warm enough for little to no accumulation on road surfaces inside the Beltway and to the south and east, but a continued chance of some slush on the roads north and west of the Beltway. Highs in the upper 70s and lows in the low 60s.
But closer to Interstate 95 or anywhere within a one county radius of the District, the prospects of substantial snow of more than a couple inches become iffy — but merit close watching. Winds E at 10 to 15 mph. Whatever precipitation is falling should taper by Tuesday evening. Winds S at 5 to 10 mph. There are two upper-level disturbances at play. .
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