Search with Google:

Recent Hydrologic Conditions -- Hawaii

Latest update July 3, 2008

Rainfall | Streamflow | Ground Water | Map

 

RAINFALL Kauai--Below-average rainfall. During April - June 2008, rainfall was about 57 percent of average. As of June 2008, rainfall near the summit of Mt. Waialeale on Kauai was below average 9 of the last 12 months. During July 2007 - June 2008, rainfall was about 86 percent of average. Oahu--Below-average rainfall. During April - June 2008, rainfall was 42 percent of average. As of June 2008, rainfall at Poamoho, near the crest of the Koolau Range on Oahu, was below average 9 of the last 12 months. During July 2007 - June 2008, rainfall was about 70 percent of average. Maui--Below-average rainfall. During April - June 2008, rainfall was 31 percent of average. As of June 2008, rainfall at Puu Kukui, the summit of the West Maui Mountains, was below average 9 of the last 12 months. During July 2007 - June 2008, rainfall was about 70 percent of average. Link to Drought Monitor from NOAA, USDA, and the National Drought Mitigation Center which includes rainfall data from Hawaii.

STREAMFLOW

Kauai-Normal streamflow for June. June 2008 flow in the North Fork Wailua River was 112 percent of the median for June (1912-2008). Streamflow over the past 3 months (April - June 2008) was 65 percent of the median for those months and over the past year (July 2007 - June 2008) was 90 percent of the yearly median.

Oahu-Honolulu--Well below-normal streamflow for June. June 2008 flow in Kalihi Stream was 33 percent of the median for June (1912-2008).Streamflow over the past 3 months (April - June 2008) was 33 percent of the median for those months and over the past year (July 2007 - June 2008) was 113 percent of the yearly median..

Oahu-Windward--Normal streamflow for June. June 2008 flow in Kahana Stream was 89 percent of the median for June (1958-2008). Streamflow over the past 3 months (April - June 2008) was 65 percent of the median for those months and over the past year (July 2007 - June 2008) was 98 percent of the yearly median.

Molokai--Below normal streamflow for June. June 2008 streamflow in Halawa Stream was 53 percent of the median for June (1917-2008).Streamflow over the past 3 months (April - June 2008) was 47 percent of the median for those months and over the past year (July 2007 - June 2008) was 101 percent of the yearly median.

Maui--Well below-normal streamflow for June. June 2008 flow in Honopou Stream was 20 percent of the median for June (1912-2008). This was the second lowest June streamflow ever recorded. Streamflow over the past 3 months (April - June 2008) was 18 percent of the median for those months and over the past year (July 2007 - June 2008) was 104 percent of the yearly median. This previous April-June had the lowest April-June total ever recorded.

Hawaii--Well below-normal streamflow for June. June 2008 flow in Honolii Stream was 38 percent of the median for June (1967-2008).This was the lowest June streamflow since 1981. Streamflow over the past 3 months (April - June 2008) was 44 percent of the median for those months and over the past year (July 2007 - June 2008) was 140 percent of the median for the year.

Link to Water Watch showing national streamflow conditions (including floods and droughts) across the United States and incorporating real-time streamflow data from Hawaii.

GROUND-WATER LEVELS

Kauai--Increasing water levels through June. Water levels in the Lihue Basin (at the Northwest Kilohana monitor well) decreased from February through June and are at record lows. Near Hanapepe, water levels increased during June 2008 and are nearing median water levels.

Oahu-Increasing water levels in Pearl Harbor area. Near Pearl Harbor (at the Aiea US Navy well), water levels increased from October 2007 through June 2008 and are now above median water levels. Varying salinity in the aquifer was apparent at the Halekauwila Street monitor well in downtown Honolulu..

Maui--Decreasing water levels through May. Water levels in the Iao area (at Waiehu test hole B) decreased during April and May 2008 to near record low levels for this time of year.

Hawaii--Water levels in the Waiohinu well in the southern part of Hawaii island show seasonal changes in an area with limited ground-water withdrawal.

Link to USGS Ground-Water Climate Response Network that includes some of these wells for Hawaii.

In addition to the USGS streamflow, ground-water level, and rainfall data for the sites shown above, the National Weather Service, Weather Forecast Office in Honolulu provides rainfall hydrology data and graphics for Hawaii.