As discussed on the home page, a period of below to very below normal temperatures is likely following the storm system this weekend.
Quick update on the teleconnections:
PNA is now neutral and rising. Both the NAO and AO are below -1SD, however have started to rise. The switch to a positive state for the NAO and AO will be too gradual for any notable pattern changing storm system such as the one leading the PNA to a positive state this weekend, however the pattern will be very supportive of winter-like weather at least through the 19th.
So far there arent any great signals for storm systems during this period. The storm train from the Pacific Ocean and west to China has been fairly inactive as of late, and blocking in the west will prevent any large pieces of energy from moving across the nation. However, the trough in the east will be baggy, allowing for shortwaves to amplify along it. Both the Euro and GFS have suggested a possible Miller-B type event, but with different short waves in different time frames. Based on the at least the potential, I am confident in accumulating snow to add to the seasons total over the next 10 days.
|posted by Sam Lillo @ 4/09/2008 04:43:00 PM
