Flow report
Iowa streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Iowa. Built for paddlers, anglers, water managers, and flood researchers.
USGS gauges
116
State percent normal
128%
Paddle runs
0
Updated
Jul 15
Open the Iowa flow layer on the map
Every USGS streamgauge filtered to Iowa.
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July
15
2026
Flow briefing
Streamflow levels across Iowa are currently 128% of normal, with the Mississippi River At Clinton reporting the highest discharge in the state at 58,200 cfs and a gauge stage of 10.43 ft.
Meanwhile, the Cedar River At Cedar Rapids is seeing a spike today — up 21% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Iowa's named rivers.
River levels near Iowa towns
Active weather warnings for Iowa
# Iowa Natural Disaster Report
Iowa residents should prepare for significant heat and flooding threats through July 17. A Heat Advisory is in effect across northeast Iowa, including Jackson and Dubuque Counties, with heat index values reaching 100-103°F through 8 PM CDT today, creating dangerous conditions for heat-related illnesses. Additionally, a Flood Watch extends through Friday evening for the Cedar River near Conesville in Louisa and Muscatine Counties, where river stages are expected to reach flood stage by Wednesday evening. Communities near Iowa Highway 22, including Moscow, and areas around campgrounds and Jack Shuger Memorial Park should monitor conditions closely and prepare for potential water impacts on yards, access roads, and low-lying areas. Residents are urged to stay hydrated during the heat advisory and avoid flooded roadways.
Iowa residents should prepare for significant heat and flooding threats through July 17. A Heat Advisory is in effect across northeast Iowa, including Jackson and Dubuque Counties, with heat index values reaching 100-103°F through 8 PM CDT today, creating dangerous conditions for heat-related illnesses. Additionally, a Flood Watch extends through Friday evening for the Cedar River near Conesville in Louisa and Muscatine Counties, where river stages are expected to reach flood stage by Wednesday evening. Communities near Iowa Highway 22, including Moscow, and areas around campgrounds and Jack Shuger Memorial Park should monitor conditions closely and prepare for potential water impacts on yards, access roads, and low-lying areas. Residents are urged to stay hydrated during the heat advisory and avoid flooded roadways.
Iowa at a glance
State-wide streamflow overview
The Iowa flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
128%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Clinton
58,200 cfs
Gauge stage 10.43 ft
Biggest 24h spike
Cedar River At Cedar Rapids
+21%
Now 23,400 cfs
Network coverage
Gauges + rivers tracked
116 + 0
USGS gauges feeding 0 named rivers in Iowa.
Full streamgauge inventory
Iowa USGS streamgauges
Every USGS gauge Snoflo tracks in Iowa. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Mississippi River At Clinton, Ia
10 hours ago · USGS 05420500 |
59,100 cfs | 10.30 ft | 87°F | 71°F | 593 ft | Copperas-Duck |
|
Cedar River At Cedar Rapids, Ia
11 hours ago · USGS 05464500 |
27,500 cfs | 11.33 ft | 62°F | 70°F | 712 ft | Middle Cedar |
|
Iowa River At Wapello, Ia
11 hours ago · USGS 05465500 |
25,200 cfs | 18.79 ft | 49°F | 71°F | 554 ft | Lower Iowa |
|
Cedar River Near Conesville, Ia
11 hours ago · USGS 05465000 |
19,700 cfs | 12.48 ft | · | 71°F | 593 ft | Lower Cedar |
|
Skunk River At Augusta, Ia
11 hours ago · USGS 05474000 |
11,500 cfs | 10.07 ft | · | 70°F | 553 ft | Skunk |
|
Cedar River At Waterloo, Ia
11 hours ago · USGS 05464000 |
10,900 cfs | 8.60 ft | · | 69°F | 823 ft | Middle Cedar |
|
Des Moines River At Keosauqua, Ia
10 hours ago · USGS 05490500 |
10,700 cfs | 13.55 ft | 85°F | 70°F | 579 ft | Lower Des Moines |
|
Des Moines River At Ottumwa, Ia
10 hours ago · USGS 05489500 |
10,500 cfs | 4.82 ft | 84°F | 69°F | 635 ft | Lower Des Moines |
|
Cedar River At Cedar Falls, Ia
11 hours ago · USGS 05463050 |
10,200 cfs | 78.70 ft | · | 68°F | 853 ft | Middle Cedar |
|
Des Moines River Near Tracy, Ia
10 hours ago · USGS 05488500 |
9,860 cfs | 5.86 ft | · | 69°F | 676 ft | Lower Des Moines |
|
Des Moines River Near Pella, Ia
10 hours ago · USGS 05488110 |
9,840 cfs | 88.93 ft | 82°F | 69°F | 689 ft | Lower Des Moines |
|
Iowa River Near Lone Tree, Ia
11 hours ago · USGS 05455700 |
5,580 cfs | 9.47 ft | · | 70°F | 601 ft | Lower Iowa |
|
Des Moines River Blw Raccoon Riv At Des Moines, Ia
11 hours ago · USGS 05485500 |
5,420 cfs | 12.96 ft | · | 70°F | 779 ft | Lake Red Rock |
|
South Skunk River Near Oskaloosa, Ia
10 hours ago · USGS 05471500 |
4,530 cfs | 15.57 ft | · | 69°F | 692 ft | South Skunk |
|
Iowa River At Iowa City, Ia
11 hours ago · USGS 05454500 |
4,390 cfs | 13.85 ft | · | 70°F | 643 ft | Lower Iowa |
|
Cedar River At Janesville, Ia
11 hours ago · USGS 05458500 |
4,240 cfs | 4.49 ft | · | 68°F | 859 ft | Upper Cedar |
|
Iowa River Below Coralville Dam Nr Coralville, Ia
11 hours ago · USGS 05453520 |
4,150 cfs | 52.28 ft | · | 70°F | 669 ft | Middle Iowa |
|
Des Moines River At 2nd Avenue, Ia
10 hours ago · USGS 05482000 |
4,120 cfs | 14.76 ft | 78°F | 70°F | 808 ft | Middle Des Moines |
|
Cedar River At Waverly, Ia
10 hours ago · USGS 05458300 |
3,950 cfs | 5.18 ft | 77°F | 68°F | 895 ft | Upper Cedar |
|
Wapsipinicon River Near De Witt, Ia
10 hours ago · USGS 05422000 |
3,770 cfs | 9.43 ft | · | 70°F | 646 ft | Lower Wapsipinicon |
|
Iowa River At Marengo, Ia
11 hours ago · USGS 05453100 |
3,500 cfs | 10.74 ft | · | 70°F | 729 ft | Middle Iowa |
|
Des Moines River Near Saylorville, Ia
11 hours ago · USGS 05481650 |
3,500 cfs | 5.46 ft | · | 70°F | 819 ft | Middle Des Moines |
|
Iowa River Near Belle Plaine, Ia
11 hours ago · USGS 05452500 |
3,120 cfs | 10.65 ft | · | 70°F | 748 ft | Middle Iowa |
|
Wapsipinicon River Near Anamosa, Ia
10 hours ago · USGS 05421740 |
2,930 cfs | 8.47 ft | · | 69°F | 779 ft | Lower Wapsipinicon |
|
Des Moines River Near Stratford, Ia
11 hours ago · USGS 05481300 |
2,780 cfs | 7.22 ft | · | 67°F | 902 ft | Middle Des Moines |
|
Shell Rock River At Shell Rock, Ia
11 hours ago · USGS 05462000 |
2,220 cfs | 9.27 ft | · | 68°F | 882 ft | Shell Rock |
|
Cedar River At Charles City, Ia
10 hours ago · USGS 05457700 |
2,140 cfs | 4.50 ft | · | 67°F | 977 ft | Upper Cedar |
|
Iowa River At Marshalltown, Ia
11 hours ago · USGS 05451500 |
1,950 cfs | 12.37 ft | · | 68°F | 853 ft | Middle Iowa |
|
Wapsipinicon River At Independence, Ia
10 hours ago · USGS 05421000 |
1,940 cfs | 6.49 ft | · | 68°F | 889 ft | Upper Wapsipinicon |
|
Des Moines River At Fort Dodge, Ia
11 hours ago · USGS 05480500 |
1,880 cfs | 4.94 ft | · | 67°F | 974 ft | Middle Des Moines |
|
West Fork Cedar River At Finchford, Ia
11 hours ago · USGS 05458900 |
1,830 cfs | 10.33 ft | · | 67°F | 859 ft | West Fork Cedar |
|
Maquoketa River Near Maquoketa, Ia
10 hours ago · USGS 05418500 |
1,730 cfs | 12.41 ft | · | 69°F | 646 ft | Maquoketa |
|
Upper Iowa River Near Dorchester, Ia
11 hours ago · USGS 05388250 |
1,640 cfs | 8.75 ft | · | 71°F | 668 ft | Upper Iowa |
|
Raccoon River At Fleur Drive, Ia
11 hours ago · USGS 05484900 |
1,630 cfs | 3.36 ft | · | 73°F | 797 ft | North Raccoon |
|
Raccoon River At 63rd Street At Des Moines, Ia
10 hours ago · USGS 05484650 |
1,620 cfs | 21.97 ft | · | 73°F | 797 ft | North Raccoon |
|
Turkey River At Garber, Ia
10 hours ago · USGS 05412500 |
1,490 cfs | 7.94 ft | 81°F | 69°F | 646 ft | Turkey |
|
Raccoon River At Van Meter, Ia
11 hours ago · USGS 05484500 |
1,470 cfs | 4.17 ft | 76°F | 69°F | 862 ft | North Raccoon |
|
Big Sioux River At Akron, Ia
11 hours ago · USGS 06485500 |
1,430 cfs | 7.06 ft | · | 67°F | 1,151 ft | Lower Big Sioux |
|
Little Sioux River Near Turin, Ia
11 hours ago · USGS 06607500 |
1,430 cfs | 8.58 ft | · | 68°F | 1,029 ft | Little Sioux |
|
South Skunk River At Colfax, Ia
11 hours ago · USGS 05471050 |
1,380 cfs | 10.23 ft | · | 69°F | 793 ft | South Skunk |
|
Nishnabotna River Above Hamburg, Ia
11 hours ago · USGS 06810000 |
1,250 cfs | 9.62 ft | · | 68°F | 904 ft | Nishnabotna |
|
Upper Iowa River At Decorah, Ia
11 hours ago · USGS 05387500 |
1,200 cfs | 3.00 ft | · | 68°F | 854 ft | Upper Iowa |
|
Turkey River Above French Hollow Cr At Elkader, Ia
11 hours ago · USGS 05412020 |
1,050 cfs | 6.46 ft | · | 71°F | 726 ft | Turkey |
|
Wapsipinicon River Near Tripoli, Ia
11 hours ago · USGS 05420680 |
1,000 cfs | 11.64 ft | · | 68°F | 1,019 ft | Upper Wapsipinicon |
|
Little Sioux River At Correctionville, Ia
11 hours ago · USGS 06606600 |
996 cfs | 6.10 ft | · | 67°F | 1,106 ft | Little Sioux |
|
Upper Iowa River At Bluffton, Ia
11 hours ago · USGS 05387440 |
980 cfs | 4.85 ft | · | 68°F | 970 ft | Upper Iowa |
|
Des Moines River At Humboldt, Ia
10 hours ago · USGS 05476750 |
900 cfs | 4.60 ft | · | 67°F | 1,066 ft | Upper Des Moines |
|
East Fork Des Moines River At Dakota City, Ia
11 hours ago · USGS 05479000 |
736 cfs | 9.17 ft | · | 67°F | 1,043 ft | East Fork Des Moines |
|
South Skunk River Below Squaw Creek Near Ames, Ia
11 hours ago · USGS 05471000 |
672 cfs | 11.99 ft | · | 68°F | 872 ft | South Skunk |
|
West Nishnabotna River At Randolph, Ia
11 hours ago · USGS 06808500 |
662 cfs | 8.71 ft | 81°F | 71°F | 956 ft | West Nishnabotna |
|
North Raccoon River Near Jefferson, Ia
10 hours ago · USGS 05482500 |
582 cfs | 5.74 ft | 76°F | 68°F | 978 ft | North Raccoon |
|
Turkey River Near Eldorado, Ia
11 hours ago · USGS 05411850 |
577 cfs | 6.18 ft | · | 68°F | 897 ft | Turkey |
|
Little Sioux River At Linn Grove, Ia
11 hours ago · USGS 06605850 |
524 cfs | 6.82 ft | · | 66°F | 1,249 ft | Little Sioux |
|
Cedar Creek Near Oakland Mills, Ia
10 hours ago · USGS 05473400 |
514 cfs | 5.59 ft | · | 69°F | 590 ft | Skunk |
|
Little Cedar River Near Ionia, Ia
11 hours ago · USGS 05458000 |
492 cfs | 5.13 ft | · | 67°F | 1,000 ft | Upper Cedar |
|
North Fork Maquoketa River Near Fulton, Ia
11 hours ago · USGS 05418400 |
488 cfs | 3.68 ft | 39°F | 69°F | 689 ft | Maquoketa |
|
North Skunk River Near Sigourney, Ia
10 hours ago · USGS 05472500 |
487 cfs | 6.15 ft | · | 69°F | 664 ft | North Skunk |
|
Iowa River Near Rowan, Ia
11 hours ago · USGS 05449500 |
455 cfs | 6.09 ft | · | 68°F | 1,187 ft | Upper Iowa |
|
Indian Creek Near Mingo, Ia
10 hours ago · USGS 05471200 |
446 cfs | 5.17 ft | · | 69°F | 827 ft | South Skunk |
|
Floyd River At James, Ia
11 hours ago · USGS 06600500 |
429 cfs | 9.28 ft | · | 67°F | 1,117 ft | Floyd |
|
Rock River Near Rock Valley, Ia
11 hours ago · USGS 06483500 |
398 cfs | 5.41 ft | · | 66°F | 1,238 ft | Rock |
|
Wolf Creek Near Dysart, Ia
10 hours ago · USGS 05464220 |
381 cfs | 3.49 ft | · | 68°F | 835 ft | Middle Cedar |
|
Boone River Near Webster City, Ia
11 hours ago · USGS 05481000 |
381 cfs | 2.76 ft | 73°F | 68°F | 1,028 ft | Boone |
|
Black Hawk Creek At Hudson, Ia
11 hours ago · USGS 05463500 |
335 cfs | 7.42 ft | · | 69°F | 897 ft | Middle Cedar |
|
Maquoketa River At Manchester, Ia
10 hours ago · USGS 05416900 |
318 cfs | 4.77 ft | · | 68°F | 920 ft | Maquoketa |
|
Boyer River At Logan, Ia
11 hours ago · USGS 06609500 |
314 cfs | 4.11 ft | · | 68°F | 1,014 ft | Boyer |
|
Beaver Creek At New Hartford, Ia
11 hours ago · USGS 05463000 |
305 cfs | 3.29 ft | · | 68°F | 890 ft | Middle Cedar |
|
Squaw Creek At Ames, Ia
11 hours ago · USGS 05470500 |
289 cfs | 2.53 ft | · | 68°F | 907 ft | South Skunk |
|
Volga River At Littleport, Ia
11 hours ago · USGS 05412400 |
281 cfs | 5.19 ft | · | 72°F | 694 ft | Turkey |
|
South Skunk River Near Ames, Ia
11 hours ago · USGS 05470000 |
260 cfs | 3.99 ft | · | 68°F | 928 ft | South Skunk |
|
South Raccoon River At Redfield, Ia
11 hours ago · USGS 05484000 |
260 cfs | 2.85 ft | 68°F | 69°F | 917 ft | South Raccoon |
|
Beaver Creek Near Grimes, Ia
10 hours ago · USGS 05481950 |
238 cfs | 4.50 ft | · | 69°F | 829 ft | Middle Des Moines |
|
West Nishnabotna River At Hancock, Ia
11 hours ago · USGS 06807410 |
231 cfs | 2.47 ft | · | 68°F | 1,089 ft | West Nishnabotna |
|
Winnebago River At Mason City, Ia
10 hours ago · USGS 05459500 |
229 cfs | 5.37 ft | · | 67°F | 1,101 ft | Winnebago |
|
Salt Creek Near Elberon, Ia
11 hours ago · USGS 05452000 |
221 cfs | 7.26 ft | · | 69°F | 802 ft | Middle Iowa |
|
English River At Kalona, Ia
11 hours ago · USGS 05455500 |
217 cfs | 4.81 ft | · | 70°F | 655 ft | Lower Iowa |
|
Turkey River At Spillville, Ia
10 hours ago · USGS 05411600 |
195 cfs | 2.91 ft | · | 68°F | 1,067 ft | Turkey |
|
Monona-Harrison Ditch Near Turin, Ia
11 hours ago · USGS 06602400 |
190 cfs | 5.16 ft | · | 68°F | 1,021 ft | Monona-Harrison Ditch |
|
Maple River At Mapleton, Ia
11 hours ago · USGS 06607200 |
185 cfs | 4.83 ft | · | 67°F | 1,114 ft | Maple |
|
North Raccoon River Near Sac City, Ia
10 hours ago · USGS 05482300 |
178 cfs | 7.28 ft | 75°F | 68°F | 1,179 ft | North Raccoon |
|
East Nishnabotna River At Red Oak, Ia
11 hours ago · USGS 06809500 |
155 cfs | 6.08 ft | · | 72°F | 1,013 ft | East Nishnabotna |
|
Nodaway River At Clarinda, Ia
10 hours ago · USGS 06817000 |
153 cfs | 10.89 ft | 76°F | 69°F | 966 ft | West Nodaway |
|
Fourmile Creek Near Ankeny, Ia
10 hours ago · USGS 05485605 |
150 cfs | 2.79 ft | · | 69°F | 911 ft | Lake Red Rock |
|
North River Near Norwalk, Ia
10 hours ago · USGS 05486000 |
137 cfs | 6.45 ft | · | 70°F | 811 ft | Lake Red Rock |
|
Yellow River At Ion, Ia
11 hours ago · USGS 05389000 |
135 cfs | 5.84 ft | · | 69°F | 681 ft | Coon-Yellow |
|
Timber Creek Near Marshalltown, Ia
11 hours ago · USGS 05451700 |
133 cfs | 3.61 ft | · | 68°F | 862 ft | Middle Iowa |
|
Old Mans Creek Near Iowa City, Ia
11 hours ago · USGS 05455100 |
126 cfs | 2.72 ft | 46°F | 70°F | 654 ft | Lower Iowa |
|
South Fork Iowa River Ne Of New Providence, Ia
11 hours ago · USGS 05451210 |
124 cfs | 3.23 ft | · | 68°F | 963 ft | Upper Iowa |
|
Ocheyedan River Near Spencer, Ia
10 hours ago · USGS 06605000 |
123 cfs | 2.73 ft | · | 66°F | 1,317 ft | Little Sioux |
|
East Nishnabotna River Near Atlantic, Ia
11 hours ago · USGS 06809210 |
116 cfs | 2.72 ft | · | 67°F | 1,109 ft | East Nishnabotna |
|
Big Bear Creek At Ladora, Ia
11 hours ago · USGS 05453000 |
114 cfs | 11.50 ft | · | 69°F | 771 ft | Middle Iowa |
|
Middle Raccoon River At Panora, Ia
10 hours ago · USGS 05483600 |
104 cfs | 4.36 ft | 35°F | 69°F | 997 ft | South Raccoon |
|
Soldier River At Pisgah, Ia
11 hours ago · USGS 06608500 |
97 cfs | 2.98 ft | · | 67°F | 1,047 ft | Blackbird-Soldier |
|
Middle Raccoon River Near Bayard, Ia
10 hours ago · USGS 05483450 |
96 cfs | 9.39 ft | · | 68°F | 1,054 ft | South Raccoon |
|
Chariton River Near Moulton, Ia
11 hours ago · USGS 06904010 |
94 cfs | 18.62 ft | · | 68°F | 847 ft | Upper Chariton |
|
Middle River Near Indianola, Ia
10 hours ago · USGS 05486490 |
88 cfs | 7.50 ft | · | 70°F | 794 ft | Lake Red Rock |
|
Floyd River At Alton, Ia
11 hours ago · USGS 06600100 |
75 cfs | 5.89 ft | · | 66°F | 1,289 ft | Floyd |
|
Rock River Below Tom Creek At Rock Rapids, Ia
10 hours ago · USGS 06483290 |
71 cfs | 7.10 ft | · | 66°F | 1,316 ft | Rock |
|
Fourmile Creek At Des Moines, Ia
10 hours ago · USGS 05485640 |
66 cfs | 4.07 ft | · | 70°F | 813 ft | Lake Red Rock |
|
Clear Creek Near Coralville, Ia
11 hours ago · USGS 05454300 |
49 cfs | 1.31 ft | · | 70°F | 660 ft | Lower Iowa |
|
Walnut Creek At Des Moines, Ia
11 hours ago · USGS 05484800 |
43 cfs | 3.49 ft | · | 73°F | 808 ft | North Raccoon |
|
Thompson River At Davis City, Ia
11 hours ago · USGS 06898000 |
41 cfs | 1.16 ft | · | 69°F | 910 ft | Thompson |
|
Clear Creek Near Oxford, Ia
11 hours ago · USGS 05454220 |
41 cfs | 2.26 ft | · | 70°F | 722 ft | Lower Iowa |
|
South River Near Ackworth, Ia
10 hours ago · USGS 05487470 |
40 cfs | 4.89 ft | · | 70°F | 805 ft | Lake Red Rock |
|
Bloody Run Creek Near Marquette, Ia
11 hours ago · USGS 05389400 |
33 cfs | 4.23 ft | · | 69°F | 634 ft | Coon-Yellow |
|
Chariton River Near Chariton, Ia
11 hours ago · USGS 06903400 |
28 cfs | 4.27 ft | · | 69°F | 968 ft | Upper Chariton |
|
Chariton River Near Rathbun, Ia
11 hours ago · USGS 06903900 |
25 cfs | 2.33 ft | · | 69°F | 855 ft | Upper Chariton |
|
Cedar Creek Near Bussey, Ia
10 hours ago · USGS 05489000 |
25 cfs | 4.60 ft | · | 69°F | 696 ft | Lower Des Moines |
|
Walnut Creek Near Hartwick, Ia
11 hours ago · USGS 05452200 |
22 cfs | 1.23 ft | · | 69°F | 806 ft | Middle Iowa |
|
Richland Creek Near Haven, Ia
11 hours ago · USGS 05451900 |
21 cfs | 10.73 ft | · | 69°F | 817 ft | Middle Iowa |
|
White Breast Creek Near Dallas, Ia
10 hours ago · USGS 05487980 |
14 cfs | 6.05 ft | · | 69°F | 773 ft | Lake Red Rock |
|
Big Creek Near Mt. Pleasant, Ia
11 hours ago · USGS 05473450 |
14 cfs | 3.40 ft | · | 70°F | 672 ft | Skunk |
|
Rapid Creek Near Iowa City, Ia
11 hours ago · USGS 05454000 |
11 cfs | 4.02 ft | · | 70°F | 688 ft | Lower Iowa |
|
South Fork Chariton River Near Promise City, Ia
10 hours ago · USGS 06903700 |
5 cfs | 3.02 ft | · | 68°F | 922 ft | Upper Chariton |
|
English Creek Near Knoxville, Ia
10 hours ago · USGS 05488200 |
5 cfs | 8.11 ft | · | 69°F | 749 ft | Lower Des Moines |
|
East Fork 102 River At Bedford, Ia
11 hours ago · USGS 06819185 |
1 cfs | 10.74 ft | · | 68°F | 1,084 ft | One Hundred And Two |
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Flow report FAQ
About Iowa streamflow
Where does the Iowa streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Iowa data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Iowa gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
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