Forecast & Discussion: 17DEC06
During the last 24 hours, the ARB experienced just a skiff of light snow,with liquid equivalents on the order of 0.1 inch. Temperatures werecolder than seasonal norms in the post-wave environment. Current IRsatellite imagery shows a comma-cloud head developing east of the ARB,over the Great Basin, in response to the developing midtrop cut-offcyclone. The ARB is situated beneath the dry, subsident, westernquadrant of the circulation.All forecast models show dry post-wave northerly-component flow over theARB for the remainder of the weekend. Ridge building over the easternPacific and Pacific Northwest will also contribute to the dry weather. This pattern will persist through at least Tuesday, and probably intoWednesday.The medium-range models are still suggesting that some wave energy maybreak through the ridge during the latter part of the week... most likelyon Thursday. As of now, it does not look like a big storm, although someprecip is possible. Then comes the holiday down time.