Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 724 AM EST Tue Feb 17 2015 Valid 00Z Wed Feb 18 2015 - 00Z Wed Feb 25 2015 The 17/00Z ECENS/GEFS and their deterministic runs were in rather good 'synch' through 22/00Z---with another frontal passage on Friday---and shortwave ridging thereafter. Keep an eye out for a broad 'Kona-type' low approaching from the east-southeast---after day 7. The deterministic guidance captures the feature invof 20N 130W around the 20/12z time frame, and drifts the closed low west-southwestward through the entire medium range period. Its location---somewhere close to 15N 140W at 24/12z (next Tuesday). Vojtesak