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There’s a light at the end of the tunnel. Sandy’s center drifts north into New York state through Wednesday, weakening along the way. Although rain ends, river flood worries grow. Not to mention, it’s quite chilly.
Through Tonight: Outer rain bands from Sandy continue cycling into the region from the northwest until around midnight. This rain is generally light and intermittent. Then it’s just cloudy and cold with lows in the mid-to-upper 30s. Winds are from the southwest at 10-15 mph.
Halloween: We remain in a chilled air mass in Sandy’s wake, but the rain bands will have moved away. Still, Sandy’s sprawling circulation throws clouds into the region. Maybe we see a peek or two of sunshine. Hgihs are in the mid-50s with a wind from the west around 10 mph.
See below for information on river flooding
River flooding risk:
Large quantities of rain from Sandy that fell to our west and northwest are collecting in the Upper Potomac and this water is headed downstream. This will cause moderate flooding the National Weather Service says.
A coastal flooding warning is in effect through 2 p.m. Friday in the Potomac for water levels 3 to 4 feet above normal.
There is a 10 percent chance of crossing the threshold for major flooding - the 10 foot level - at the Wisconsin Avenue gauge when the Potomac crests early Thursday morning. In this scenario, flood water would approach K St. in Georgetown. If levels exceed 10.5 feet, flood water would reach 17th Street and Independence Avenue along the Tidal Basin.
Upcoming high tides:
Washington Channel: 9:19 p.m. tonight and 9:48 a.m. Wednesday morning
Alexandria: 9:37 p.m. tonight and 10:06 a.m. Wednesday morning