Northern California: 1-2 January 1997
Tropical Maritime Connection (Pineapple Express)
Plume of high PW’s and high ?e air directed at coast
Jet dynamics increase upward motion
Increase low-level precipitation growth due to abrupt terrain boundaries
Terrain features also result in convergence zones and barrier jets
Rising freezing levels not only increase “warm rain” production in the low levels, but result in rain-on-snow situations