Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 752 AM EDT Tue Jul 15 2014 Valid 00Z Wed Jul 16 2014 - 00Z Wed Jul 23 2014 Firmly in the midsummer trades, the only fly in the ointment for Hawai'i during the next week will be an approaching tropical wave this weekend. The European Centre ensemble mean is closest to the forecast coordinated between the National Hurricane Center and the National Weather Center on the routine hotline call midday yesterday. The deep-layer moisture field associated with the wave--displaced to the north of the surface trough with time--could fuel several inches of rainfall along the island chain if it tracks directly across the state. It is still too far in the future to make that call. Cisco