Skip Navigation Links 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center



Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Air Quality
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/

Satellite and Radar Imagery
   Satellite Images
   National Radar
Product Archive
WPC Verification
   Medium Range
   Model Diagnostics
   Event Reviews
International Desks
Development and Training
WPC Overview
   About the WPC
   WPC History
   Other Sites
Meteorological Calculators
Contact Us
   About Our Site is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
Hawaii Extended Forecast Discussion
(Caution: Version displayed is not the latest version. - Issued 1211Z Sep 09, 2014)
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
Abbreviations and acronyms used in this product

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
811 AM EDT Tue Sep 09 2014

Valid 00Z Wed Sep 10 2014 - 00Z Wed Sep 17 2014

Upper ridging should meander near the dateline and 30N, leaving
Hawai'i in relative but weak troughing. Ensembles indicate PW
values to slowly climb from just below climo values to just over
climo values by early next week. The 00Z ECMWF lies on the higher
1/3 of the ensemble spread while the 00Z GFS lies near the middle
or even on the lower 1/3 of the spread. A compromise should
suffice, but precipitation forecasts should be light regardless.
Trades should be on the weak side.