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
   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 1227Z Mar 26, 2015)
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
827 AM EDT Thu Mar 26 2015

Valid 00Z Fri Mar 27 2015 - 00Z Fri Apr 03 2015

The models and ensembles reasonably agree that a building ridge
over the state over the next couple of days should gradually limit
island showers in the wake of supporting shortwave passage to the
northeast and associated trailing/stalled surface boundary
weakening. Showers should linger mostly over the southern islands
over the next 48 hours. Trades will kick in this period.
Additional shortwave passage to the north of the state around
Sunday should whittle into the ambient ridge and allow some
moisture return. This leads into stronger southern stream impulse
energy and height falls working more ernestly into the state
around Tuesday along with deeper moisture to fuel a pattern with
more widespread showers through next midweek. This is all based on
a favored guidance composite given modest forecast spread, albeit
with some latter period timing issues inherent with smaller scale