Meteorologists call it "training," not because it gives them practice in forecasting rainfall, but because it suggests a "train" of storms that keep passing over a narrow area, producing repeated downpours and high rain totals.

Anyway, that's what Baltimore and points north have been experiencing this morning. Showers and thunderstorms, some with heavy downpours, have been moving up the Chesapeake, heading inland over Baltimore and on northward. Here's how it looks this morning on the radar loop. (Later in the day things will likely change, so will the loop.)

So far, since midnight, we have recorded 0.66 inches of rain here on the WeatherDeck. The total since Thursday is 1.54 inches. Here's where to find a map of totals that will be reported shortly by National Weather Service volunteer weather observers. (The map as I write this is yesterday's, but should be updated shortly.)

For CoCoRaHS observers' reports, click here. Click on "Total Precip" at the top of the rain column and it will order them from the highest amounts, down to the lowest. Thurmont and Potomac have seen about 2 inches.

It's all being driven by that Atlantic storm that went ashore near Myrtle Beach. The low is now moving north and east along the Appalachians, still well to our southwest. But the counterclockwise flow around the center is still pumping very wet Atlantic air across the region. Here's the satellite loop.