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San Juan Radar Outage Impacts Precipitation Estimates.. read more here
Hydrograph River at a Glance Download
Rio Loco at Las Latas Stage (ft)Observed: 2.22 ft at 5:45AM May 13, 2022Observed: 2.22 ft at 6:00AM May 13, 2022Observed: 2.22 ft at 6:15AM May 13, 2022Highest Observation: 2.23 ft at 6:30AM May 13, 2022Observed: 2.22 ft at 6:45AM May 13, 2022Observed: 2.22 ft at 7:00AM May 13, 2022Observed: 2.22 ft at 7:06AM May 13, 2022Highest Observation: 2.23 ft at 7:15AM May 13, 2022Observed: 2.22 ft at 7:30AM May 13, 2022Observed: 2.22 ft at 7:45AM May 13, 2022Observed: 2.22 ft at 8:00AM May 13, 2022Observed: 2.22 ft at 8:15AM May 13, 2022Observed: 2.22 ft at 8:30AM May 13, 2022Observed: 2.22 ft at 8:45AM May 13, 2022Observed: 2.22 ft at 9:00AM May 13, 2022Observed: 2.2 ft at 9:15AM May 13, 2022Observed: 2.22 ft at 9:30AM May 13, 2022Observed: 2.22 ft at 9:45AM May 13, 2022Observed: 2.21 ft at 10:00AM May 13, 2022Observed: 2.21 ft at 10:15AM May 13, 2022Observed: 2.21 ft at 10:30AM May 13, 2022Observed: 2.22 ft at 10:45AM May 13, 2022Observed: 2.22 ft at 11:00AM May 13, 2022Highest Observation: 2.23 ft at 11:15AM May 13, 2022Observed: 2.21 ft at 11:30AM May 13, 2022Observed: 2.21 ft at 11:45AM May 13, 2022Observed: 2.22 ft at 12:00PM May 13, 2022Observed: 2.22 ft at 12:15PM May 13, 2022Highest Observation: 2.23 ft at 12:30PM May 13, 2022Highest Observation: 2.23 ft at 12:45PM May 13, 2022Observed: 2.21 ft at 1:00PM May 13, 2022Observed: 2.21 ft at 1:15PM May 13, 2022Observed: 2.22 ft at 1:30PM May 13, 2022Observed: 2.22 ft at 1:45PM May 13, 2022Observed: 2.22 ft at 2:00PM May 13, 2022Observed: 2.22 ft at 2:15PM May 13, 2022Observed: 2.21 ft at 2:30PM May 13, 2022Observed: 2.22 ft at 2:45PM May 13, 2022Observed: 2.22 ft at 3:00PM May 13, 2022Observed: 2.22 ft at 3:15PM May 13, 2022Observed: 2.22 ft at 3:16PM May 13, 2022Observed: 2.22 ft at 3:21PM May 13, 2022Observed: 2.22 ft at 3:30PM May 13, 2022Observed: 2.22 ft at 3:45PM May 13, 2022Observed: 2.22 ft at 4:00PM May 13, 2022Highest Observation: 2.23 ft at 5:15PM May 13, 2022Observed: 2.21 ft at 5:30PM May 13, 2022Observed: 2.22 ft at 5:45PM May 13, 2022Observed: 2.21 ft at 6:00PM May 13, 2022Observed: 2.21 ft at 6:15PM May 13, 2022Observed: 2.22 ft at 6:30PM May 13, 2022Observed: 2.21 ft at 6:45PM May 13, 2022Observed: 2.2 ft at 7:00PM May 13, 2022Observed: 2.21 ft at 7:15PM May 13, 2022Observed: 2.2 ft at 7:30PM May 13, 2022Observed: 2.2 ft at 7:45PM May 13, 2022Observed: 2.2 ft at 8:00PM May 13, 2022Observed: 2.2 ft at 8:15PM May 13, 2022Observed: 2.21 ft at 8:30PM May 13, 2022Observed: 2.19 ft at 8:45PM May 13, 2022Observed: 2.19 ft at 9:00PM May 13, 2022Observed: 2.19 ft at 10:15PM May 13, 2022Observed: 2.19 ft at 10:30PM May 13, 2022Observed: 2.19 ft at 10:45PM May 13, 2022Observed: 2.2 ft at 11:00PM May 13, 2022Observed: 2.19 ft at 11:15PM May 13, 2022Observed: 2.19 ft at 11:30PM May 13, 2022Observed: 2.19 ft at 11:45PM May 13, 2022Observed: 2.18 ft at 12:00AM May 14, 2022Observed: 2.19 ft at 12:15AM May 14, 2022Observed: 2.19 ft at 12:30AM May 14, 2022Observed: 2.18 ft at 12:45AM May 14, 2022Observed: 2.19 ft at 1:00AM May 14, 2022Observed: 2.18 ft at 1:15AM May 14, 2022Observed: 2.17 ft at 1:30AM May 14, 2022Observed: 2.19 ft at 1:45AM May 14, 2022Observed: 2.17 ft at 2:00AM May 14, 2022Observed: 2.18 ft at 2:15AM May 14, 2022Observed: 2.18 ft at 2:30AM May 14, 2022Observed: 2.18 ft at 2:45AM May 14, 2022Observed: 2.18 ft at 3:00AM May 14, 2022Observed: 2.16 ft at 3:15AM May 14, 2022Observed: 2.18 ft at 3:30AM May 14, 2022Observed: 2.16 ft at 3:45AM May 14, 2022Observed: 2.17 ft at 4:00AM May 14, 2022Observed: 2.18 ft at 4:15AM May 14, 2022Observed: 2.15 ft at 4:30AM May 14, 2022Observed: 2.17 ft at 4:45AM May 14, 2022Observed: 2.15 ft at 5:00AM May 14, 2022Observed: 2.16 ft at 5:15AM May 14, 2022Observed: 2.17 ft at 5:30AM May 14, 2022Observed: 2.16 ft at 5:45AM May 14, 2022Observed: 2.15 ft at 6:00AM May 14, 2022Observed: 2.16 ft at 6:15AM May 14, 2022Observed: 2.15 ft at 6:30AM May 14, 2022Observed: 2.16 ft at 6:45AM May 14, 2022Observed: 2.13 ft at 7:00AM May 14, 2022Observed: 2.15 ft at 7:15AM May 14, 2022Observed: 2.16 ft at 7:20AM May 14, 2022Observed: 2.14 ft at 7:30AM May 14, 2022Observed: 2.15 ft at 7:45AM May 14, 2022Observed: 2.14 ft at 8:00AM May 14, 2022Observed: 2.15 ft at 8:15AM May 14, 2022Observed: 2.14 ft at 8:30AM May 14, 2022Observed: 2.15 ft at 8:45AM May 14, 2022Observed: 2.15 ft at 9:00AM May 14, 2022Observed: 2.15 ft at 9:15AM May 14, 2022Observed: 2.13 ft at 9:30AM May 14, 2022Observed: 2.15 ft at 9:45AM May 14, 2022Observed: 2.15 ft at 10:00AM May 14, 2022Observed: 2.14 ft at 10:15AM May 14, 2022Observed: 2.15 ft at 10:30AM May 14, 2022Observed: 2.15 ft at 10:45AM May 14, 2022Observed: 2.13 ft at 11:00AM May 14, 2022Observed: 2.14 ft at 11:15AM May 14, 2022Observed: 2.12 ft at 11:30AM May 14, 2022Observed: 2.12 ft at 11:45AM May 14, 2022Observed: 2.13 ft at 12:00PM May 14, 2022Observed: 2.15 ft at 12:15PM May 14, 2022Observed: 2.13 ft at 12:30PM May 14, 2022Observed: 2.12 ft at 12:45PM May 14, 2022Observed: 2.11 ft at 1:00PM May 14, 2022Observed: 2.12 ft at 1:15PM May 14, 2022Observed: 2.12 ft at 1:30PM May 14, 2022Observed: 2.11 ft at 1:45PM May 14, 2022Observed: 2.12 ft at 2:00PM May 14, 2022Observed: 2.11 ft at 2:15PM May 14, 2022Observed: 2.11 ft at 2:30PM May 14, 2022Observed: 2.11 ft at 3:00PM May 14, 2022Observed: 2.1 ft at 3:15PM May 14, 2022Observed: 2.11 ft at 3:21PM May 14, 2022Observed: 2.1 ft at 3:30PM May 14, 2022Observed: 2.11 ft at 3:45PM May 14, 2022Observed: 2.1 ft at 4:00PM May 14, 2022Observed: 2.12 ft at 4:15PM May 14, 2022Observed: 2.11 ft at 4:30PM May 14, 2022Observed: 2.11 ft at 4:45PM May 14, 2022Observed: 2.1 ft at 5:00PM May 14, 2022Observed: 2.1 ft at 5:15PM May 14, 2022Observed: 2.11 ft at 5:30PM May 14, 2022Observed: 2.11 ft at 5:45PM May 14, 2022Observed: 2.09 ft at 6:00PM May 14, 2022Observed: 2.09 ft at 6:15PM May 14, 2022Observed: 2.09 ft at 6:30PM May 14, 2022Observed: 2.1 ft at 6:45PM May 14, 2022Observed: 2.09 ft at 7:00PM May 14, 2022Observed: 2.09 ft at 7:15PM May 14, 2022Observed: 2.1 ft at 7:30PM May 14, 2022Observed: 2.09 ft at 7:45PM May 14, 2022Observed: 2.09 ft at 8:00PM May 14, 2022Observed: 2.08 ft at 8:15PM May 14, 2022Observed: 2.09 ft at 8:30PM May 14, 2022Observed: 2.08 ft at 8:45PM May 14, 2022Observed: 2.07 ft at 9:00PM May 14, 2022Observed: 2.11 ft at 9:15PM May 14, 2022Observed: 2.09 ft at 9:30PM May 14, 2022Observed: 2.08 ft at 9:45PM May 14, 2022Observed: 2.09 ft at 10:00PM May 14, 2022Observed: 2.08 ft at 10:15PM May 14, 2022Observed: 2.07 ft at 10:30PM May 14, 2022Observed: 2.08 ft at 10:45PM May 14, 2022Observed: 2.07 ft at 11:00PM May 14, 2022Observed: 2.07 ft at 11:15PM May 14, 2022Observed: 2.06 ft at 11:25PM May 14, 2022Observed: 2.06 ft at 11:30PM May 14, 2022Observed: 2.06 ft at 11:45PM May 14, 2022Observed: 2.05 ft at 12:00AM May 15, 2022Observed: 2.05 ft at 12:15AM May 15, 2022Observed: 2.04 ft at 12:30AM May 15, 2022Observed: 2.04 ft at 12:45AM May 15, 2022Observed: 2.04 ft at 1:00AM May 15, 2022Observed: 2 ft at 3:15AM May 15, 2022Observed: 2 ft at 3:30AM May 15, 2022Observed: 1.99 ft at 3:45AM May 15, 2022Observed: 1.98 ft at 4:00AM May 15, 2022Observed: 1.97 ft at 4:15AM May 15, 2022Observed: 1.96 ft at 4:30AM May 15, 2022Observed: 1.96 ft at 4:45AM May 15, 2022Observed: 1.95 ft at 5:00AM May 15, 2022Observed: 1.95 ft at 5:15AM May 15, 2022Observed: 1.94 ft at 5:30AM May 15, 2022Observed: 1.94 ft at 5:45AM May 15, 2022Observed: 1.93 ft at 6:00AM May 15, 2022Observed: 1.92 ft at 6:15AM May 15, 2022Observed: 1.92 ft at 6:30AM May 15, 2022Observed: 1.89 ft at 6:45AM May 15, 2022Observed: 1.88 ft at 7:00AM May 15, 2022Observed: 1.88 ft at 7:26AM May 15, 2022Observed: 1.88 ft at 8:15AM May 15, 2022Observed: 1.88 ft at 8:30AM May 15, 2022Observed: 1.88 ft at 8:45AM May 15, 2022Observed: 1.88 ft at 9:00AM May 15, 2022Observed: 1.88 ft at 9:15AM May 15, 2022Observed: 1.89 ft at 9:30AM May 15, 2022Observed: 1.88 ft at 9:45AM May 15, 2022Observed: 1.88 ft at 10:00AM May 15, 2022Observed: 1.88 ft at 10:15AM May 15, 2022Observed: 1.89 ft at 10:30AM May 15, 2022Observed: 1.89 ft at 10:45AM May 15, 2022Observed: 1.88 ft at 11:00AM May 15, 2022Observed: 1.88 ft at 11:15AM May 15, 2022Observed: 1.88 ft at 11:30AM May 15, 2022Observed: 1.88 ft at 11:45AM May 15, 2022Observed: 1.88 ft at 12:00PM May 15, 2022Observed: 1.88 ft at 12:15PM May 15, 2022Observed: 1.88 ft at 12:30PM May 15, 2022Observed: 1.88 ft at 12:45PM May 15, 2022Observed: 1.88 ft at 1:00PM May 15, 2022Observed: 1.88 ft at 1:15PM May 15, 2022Observed: 1.88 ft at 1:30PM May 15, 2022Observed: 1.89 ft at 1:45PM May 15, 2022Observed: 1.88 ft at 2:00PM May 15, 2022Observed: 1.89 ft at 2:15PM May 15, 2022Observed: 1.89 ft at 2:30PM May 15, 2022Observed: 1.89 ft at 2:45PM May 15, 2022Observed: 1.89 ft at 3:00PM May 15, 2022Observed: 1.88 ft at 3:15PM May 15, 2022Observed: 1.88 ft at 3:26PM May 15, 2022Observed: 1.88 ft at 3:30PM May 15, 2022Observed: 1.88 ft at 3:45PM May 15, 2022Observed: 1.88 ft at 4:00PM May 15, 2022Observed: 1.88 ft at 4:15PM May 15, 2022Observed: 1.88 ft at 4:30PM May 15, 2022Observed: 1.88 ft at 4:45PM May 15, 2022Observed: 1.88 ft at 5:00PM May 15, 2022Observed: 1.89 ft at 5:15PM May 15, 2022Observed: 1.88 ft at 5:30PM May 15, 2022Observed: 1.88 ft at 5:45PM May 15, 2022Observed: 1.88 ft at 6:00PM May 15, 2022Observed: 1.88 ft at 6:15PM May 15, 2022Observed: 1.88 ft at 6:30PM May 15, 2022Observed: 1.88 ft at 6:45PM May 15, 2022Observed: 1.88 ft at 7:00PM May 15, 2022Observed: 1.87 ft at 8:15PM May 15, 2022Observed: 1.88 ft at 8:30PM May 15, 2022Observed: 1.88 ft at 8:45PM May 15, 2022Observed: 1.88 ft at 9:00PM May 15, 2022Observed: 1.87 ft at 9:15PM May 15, 2022Observed: 1.87 ft at 9:30PM May 15, 2022Observed: 1.88 ft at 9:45PM May 15, 2022Observed: 1.88 ft at 10:00PM May 15, 2022Observed: 1.88 ft at 10:15PM May 15, 2022Observed: 1.88 ft at 10:30PM May 15, 2022Observed: 1.88 ft at 10:45PM May 15, 2022Observed: 1.88 ft at 11:00PM May 15, 2022Observed: 1.87 ft at 11:15PM May 15, 2022Observed: 1.87 ft at 11:30PM May 15, 2022Observed: 1.87 ft at 11:31PM May 15, 2022Observed: 1.87 ft at 11:45PM May 15, 2022Observed: 1.88 ft at 12:00AM May 16, 2022Observed: 1.87 ft at 12:15AM May 16, 2022Observed: 1.87 ft at 12:30AM May 16, 2022Observed: 1.87 ft at 12:45AM May 16, 2022Observed: 1.87 ft at 1:00AM May 16, 2022Observed: 1.88 ft at 1:15AM May 16, 2022Observed: 1.88 ft at 1:30AM May 16, 2022Observed: 1.88 ft at 1:45AM May 16, 2022Observed: 1.88 ft at 2:00AM May 16, 2022Observed: 1.88 ft at 3:15AM May 16, 2022Observed: 1.88 ft at 3:30AM May 16, 2022Observed: 1.88 ft at 3:45AM May 16, 2022Observed: 1.87 ft at 4:00AM May 16, 2022Observed: 1.88 ft at 4:15AM May 16, 2022Observed: 1.88 ft at 4:30AM May 16, 2022Observed: 1.87 ft at 4:45AM May 16, 2022Observed: 1.88 ft at 5:00AM May 16, 2022USGS--Water Resources of the United StatesLOGP4(plotting HGIRG) Graph Created (5:36AM May 16, 2022)ObservedLatest observed value: 1.88 ft at 5:00 AM AST 16-May-2022.
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About this graph
Tabular Data (UTC)
Tabular Data (AST)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the Rio Loco at Las Latas. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Not Available

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 6.91 ft on 06/06/2007
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
About This Location Collapse

Latitude: 18.007182° N, Longitude: 66.876320° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 95 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
San Juan Weather Forecast Office
4000 Carreterra 190
San Juan, PR 00979
(787) 253-4586
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