Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 721 AM EST Sun Dec 04 2016 Valid 00Z Mon Dec 05 2016 - 00Z Mon Dec 12 2016 ...Continued Heavy Rainfall Pattern for Hawai'i... Upper trough currently to the northwest of the state will continue to bring in tropical moisture over Hawai'i for the next couple of days as it slowly lifts to the northeast. Another trough is forecast to dig around 170W by midweek an potentially close off an upper low, though the models have been back and forth on this idea and whether to close off the northern portion (around 30N) or the southern portion (around 20-22N). Recent GFS runs focus more on the southern portion while the ECMWF has focused no the northern portion and the recent 00Z Canadian/UKMET close off both. Given the uncertainty, a blend/compromise position via the ensembles (NAEFS mean lies close to the ECMWF ensemble mean) may have to suffice. Waves of rainfall, heavy at times, will continue to lift over the region for the next seven days, though with intermittent drier periods. Ensembles still favor an upper trough axis around 165-170W by next Sunday with yet another trough or closed low digging southeastward from the central Pacific. Fracasso