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USGS Current Water Data for Guam

Daily Streamflow Conditions

Select a site to retrieve data and station information.
Stream gage levels in Guam, relative to 30 year average. 16848100168096001684700016848500168650001685450016849000
[color code for] High
[color code for] > 90th percentile
[color code for] 76th - 90th percentile
[color code for] 25th - 75th percentile
[color code for] 10th - 24th percentile
[color code for] < 10th percentile
[color code for] Low
[color code for] Not ranked
The colored dots on this map depict streamflow conditions as a percentile, which is computed from the period of record for the current day of the year. Only stations with at least 30 years of record are used.
The gray circles indicate other stations that were not ranked in percentiles either because they have fewer than 30 years of record or because they report parameters other than streamflow. Some stations, for example, measure stage only.

Guam Streamflow Current Conditions

Guam Precipitation Current Conditions

Guam Reservoir Current Conditions

Guam Groundwater Current Condtions

All Guam Current Condition sites

Current data typically are recorded at 5- to 15-minute intervals, stored onsite, and then transmitted to USGS offices every 15-minutes to an hour, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events. Data from current sites are relayed to USGS offices via satellite, telephone, and/or iridium telemetry and are available for viewing within minutes of arrival.

All real-time data are provisional and subject to revision.

Build Current Conditions Table Show a custom current conditions summary table for one or more stations.
Build Time Series Show custom graphs or tables for a series of recent data for one or more stations.