Today's 6Z 15 day forecast shows some speculatively cold 11-15 day estimates that would be fantastically cold in the northern half of the US, much colder than anything seen in years. If these came to pass, this winter's entire warm anomaly would be offset in two short weeks. A couple more runs should either reverse this or generate some genuine concern. So far markets are not reacting much to these numbers, so there are likely competing outlooks on the last half of this forecast. However, day 8 of the forecast is getting within range of probable, and that would be a notably cold day.