FRANKLIN—Western Tidewater could expect 1 to 3 inches of snow on Wednesday evening from a storm system blowing in from the Northern Plains and traveling through the Ohio Valley.

“There’s still some uncertainty with the situation,” National Weather Service Meteorologist Lyle Alexander said Monday.

Worst-case scenario — the storm could dump 4 to 5 inches of snow on Western Tidewater, Alexander said.

Best-case scenario could result in rain and maybe a few flurries.

The storm is expected to intensify into a coastal storm on Wednesday and move off to sea in a northeast direction. The worst of the snowfall will occur north of Richmond and the Skyline Drive area, where more than a foot is expected.

For Western Tidewater, rain is expected to start Tuesday night. An 80 percent chance of rain is forecast for Wednesday; the chance of precipitation will decrease to 70 percent by evening. The day will begin with temperatures in the mid to upper 40s and fall into the mid to upper 30s by late afternoon.

The snow is not expected to accumulate on the roads, except for those less traveled. Grassy areas also can expect to see some accumulation.

No freezing rain is expected, Alexander said.