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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


The program name that you tried to access is not recognized.
The valid program names available in the NwisWeb system include:
Program Name Description
annual Water Year Statistics
calendar Calendar Year Statistics
current Real-Time Data
doc Water Data for the Nation HelpSystem
docs Water Data for the Nation HelpSystem
dv Daily Data
dvstat Water Year Statistics
gw Water Data for the Nation
gwlevel Groundwater levels
gwlevels Groundwater levels
inventory Site Inventory
man Station Home Page
map Site Map
measurement Streamflow Measurements
measurements Streamflow Measurements
monthly Water Year Statistics
notes Revision Notes
nwis Water Data for the Nation
nwisman Station Home Page
nwismap Site Map
peak Peak Streamflow
peaks Peak Streamflow
pmcode Parameter Code Definition
pmcodes Parameter Code Definition
qw Water Data for the Nation
qwdata Water Quality Samples
realtime Real-Time Data
review Site Inventory
revision Revision Notes
revisions Revision Notes
rt Water Data for the Nation
si Water Data for the Nation
site Site Inventory
stat Water Year Statistics
stats Water Year Statistics
subscribe Subscribe
sw Water Data for the Nation
uv Daily Data
water Water Year Statistics
water_use Water Use for the Nation
wu Water Use for the Nation
wys USGS Water-Year Summary
wys_rpt USGS Water-Year Summary