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610 Day outlooks are issued daily between 3pm
& 4pm Eastern Time. All forecasts issued on weekends are completely
automated while all weekday outlooks are modified by the forecaster. Please refer to the U.S. Prognostic Discussion for an explanation of terms and symbols used on these maps.



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6 to 10 Day Hawaiian Outlooks

Valid: Aug 02, 2021  Aug 06, 2021 Issued: Jul 27, 2021 


Upper Air Forecast: 500mb Heights (green) & Standardized Anomalies (red & blue)


Surface Forecast: Station Temperature (red) in F and Precipitation (green) in hundreths of an inch with observed 5day mean
SST (dashed black lines), SST anomalies (filled), and winds (arrows)


For Lihue, the forecast is calling for a mean temperature of 80.46F. There is a 0.00% chance of the 5day mean temperature being in the below normal category,
a 7.14% chance of the temperature falling into the near normal category, and a 92.86% chance of the temperature being in the above normal category. The
climatological normal temperature for Lihue is 79.03F and both categorical thresholds are 0.52 degrees F away from the mean.
For precipitation, the ensemble median forecast is for 0.51 inches of rain. There is a 1.2% chance of below normal precipitation, a 33.3% chance of
near normal precipitation, and a 65.5% chance of above normal precipitation for this period.
For Honolulu, the forecast is calling for a mean temperature of 81.84F. There is a 2.38% chance of the 5day mean temperature being in the below normal category,
a 23.81% chance of the temperature falling into the near normal category, and a 73.81% chance of the temperature being in the above normal category. The
climatological normal temperature for Honolulu is 80.98F and both categorical thresholds are 0.40 degrees F away from the mean.
For precipitation, the ensemble median forecast is for 0.05 inches of rain. There is a 0.0% chance of below normal precipitation, a 22.6% chance of
near normal precipitation, and a 77.4% chance of above normal precipitation for this period.
For Kahului, the forecast is calling for a mean temperature of 79.60F. There is a 7.14% chance of the 5day mean temperature being in the below normal category,
a 69.05% chance of the temperature falling into the near normal category, and a 23.81% chance of the temperature being in the above normal category. The
climatological normal temperature for Kahului is 79.10F and both categorical thresholds are 0.53 degrees F away from the mean.
For precipitation, the ensemble median forecast is for 0.41 inches of rain. There is a 0.0% chance of below normal precipitation, a 39.3% chance of
near normal precipitation, and a 60.7% chance of above normal precipitation for this period.
For Hilo, the forecast is calling for a mean temperature of 76.85F. There is a 0.00% chance of the 5day mean temperature being in the below normal category,
a 42.86% chance of the temperature falling into the near normal category, and a 57.14% chance of the temperature being in the above normal category. The
climatological normal temperature for Hilo is 75.75F and both categorical thresholds are 0.64 degrees F away from the mean.
For precipitation, the ensemble median forecast is for 1.24 inches of rain. There is a 10.7% chance of below normal precipitation, a 53.6% chance of
near normal precipitation, and a 35.7% chance of above normal precipitation for this period.

Related Topics:
Prognostic Discussion,
610 day Forecast for the 48 Contiguous States,
Time Series of Surface Forecast Skill,
Model Guidance Used,
8 to 14 Day Hawaiian Outlook,
Our Mission,
Who We Are,
CPC Information,
CPC Web Team 


