Gee... reading through the service updates at USPS (here:
http://www.usps.com/communications/n...iceupdates.htm), it's just full of all sorts of unexpected information, such as this one regarding shipping delays to Australia:
An ash cloud from the Puyehue-Cordón Caulle volcano in Chile has disrupted air transportation to, from and within Australia. The Australian Volcanic Ash Advisory Center has advised that airspace in Tasmania and Melbourne has been affected. Mail processing also will be impacted as a result of the disruption to air services until further notice.