Well keep monitoring. It should pass through during the next 30 to 45 minutes. This line will track east across the Beltway and D.C. proper during the next one to two hours before continuing on into the eastern suburbs. 10:30p: Areas around and inside the Beltway, along the I-95 and I-270 corridors, and DC proper will see the squall line move through W to E during the next 1-2 hours. Well keep you updated.
The storm was predicted to move east.
( z0 predict :ARG1 ( z1 move :ARG1 ( z2 storm ) :ARG2 ( z3 east ) ) )
(z0 / predict-01
    :ARG1 (z1 / move-01
              :ARG1 (z2 / storm)
              :ARG2 (z3 / east)))
The storm was predicted to move east .
z0 :ARG1 z1
z1 :ARG1 z2
z1 :ARG2 z3