An Environment Agency spokesman said levels were continuing to rise and a high tide in Gloucester on Friday would probably cause flooding problems over the weekend.
The only plausible opportunity this week is probably to do it in New Hampshire on Friday, or over the weekend, but the telltale signs have to start emerging soon if it's a large public event.
In itself, Lord Levy's intervention probably would not unduly trouble Downing Street... had it not come on a weekend where you really wouldn't want to have been Mr Brown's paperboy.
You probably read stories over the weekend about how the Senate passed a 2014 budget just before dawn on Saturday morning, a day after the House passed its version.
Preparatory talks had been scheduled to end on Friday this week, but are now set to continue through the weekend and probably up to the point where heads of government arrive for the summit next Wednesday.