This week the Duero river is well over their record high, yesterday Valladolid suffered a flood, today is Zamora.The Duero river is carrying 6times normal levels. River is flooding the areas as the same time the water reaches for the sea in Portugal.
It is seriously adviced for anyone that goes to Duero's flatland (Zamora, Salamanca, Toro, Porto)to be constantly informed by the national services.
In fact it has been advised that unless is necesary, not to travel from Madrid towards center north by car (That is Leon,Asturias, Galicia,...) It is only for this week.
There is also "water excess" conditions in the South, Seville specially but it is less severe.
Everything is supposed to go back to normal next week,
Take care and listen to the news if you are traveling in Castilla Leon outside the big cities