Flow report
Iowa River Levels & Streamflow
As of Aug 15, 2026, Iowa rivers are running at 190% of normal across 117 USGS gauges — the highest is 36,400 cfs on the Mississippi River At Clinton. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Iowa.
USGS gauges
117
State percent normal
190%
Paddle runs
0
Updated
Aug 15
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Every USGS streamgauge filtered to Iowa.
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August
15
2026
Flow briefing
Streamflow levels across Iowa are currently 190% of normal, with the Mississippi River At Clinton reporting the highest discharge in the state at 36,400 cfs and a gauge stage of 9.62 ft.
Meanwhile, the English Creek Near Knoxville is seeing a spike today — up 28431% 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 Storm Center Report
Iowa is experiencing significant flooding threats across multiple regions on August 15, 2026. A Flood Warning is currently active in Lee County (southeastern Iowa) until 2:30 PM CDT, with flooding already occurring in Fort Madison, West Point, Donnellson, and surrounding areas; rural roads are impassable and low-water crossings are inundated. Flood Watches remain in effect until 10:00 AM CDT across central and southern Iowa south of Interstate 80, as well as east-central counties including Linn, Johnson, Cedar, and Scott counties, where 3-5 inches of rainfall has already fallen in hardest-hit areas. Additionally, multiple river systems are under Flood Warnings through August 16-19, including the Iowa River at Oakville and Wapello (Louisa County) and the English River at Kalona (Johnson/Washington counties), with minor to moderate flooding forecast. Residents in affected areas should avoid flooded roadways, monitor water levels, and be prepared for possible evacuations.
Iowa is experiencing significant flooding threats across multiple regions on August 15, 2026. A Flood Warning is currently active in Lee County (southeastern Iowa) until 2:30 PM CDT, with flooding already occurring in Fort Madison, West Point, Donnellson, and surrounding areas; rural roads are impassable and low-water crossings are inundated. Flood Watches remain in effect until 10:00 AM CDT across central and southern Iowa south of Interstate 80, as well as east-central counties including Linn, Johnson, Cedar, and Scott counties, where 3-5 inches of rainfall has already fallen in hardest-hit areas. Additionally, multiple river systems are under Flood Warnings through August 16-19, including the Iowa River at Oakville and Wapello (Louisa County) and the English River at Kalona (Johnson/Washington counties), with minor to moderate flooding forecast. Residents in affected areas should avoid flooded roadways, monitor water levels, and be prepared for possible evacuations.
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
190%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Clinton
36,400 cfs
Gauge stage 9.62 ft
Biggest 24h spike
English Creek Near Knoxville
+28431%
Now 408 cfs
Network coverage
Gauges + rivers tracked
117 + 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
14 hours ago · USGS 05420500 |
30,500 cfs | 9.44 ft | 77°F | 70°F | 593 ft | Copperas-Duck |
|
Iowa River At Wapello, Ia
14 hours ago · USGS 05465500 |
24,700 cfs | 18.69 ft | 49°F | 72°F | 554 ft | Lower Iowa |
|
Des Moines River Near Tracy, Ia
14 hours ago · USGS 05488500 |
15,300 cfs | 7.52 ft | · | 72°F | 676 ft | Lower Des Moines |
|
Des Moines River Near Pella, Ia
14 hours ago · USGS 05488110 |
15,000 cfs | 90.89 ft | 79°F | 72°F | 689 ft | Lower Des Moines |
|
Des Moines River At Ottumwa, Ia
14 hours ago · USGS 05489500 |
10,700 cfs | 4.78 ft | 78°F | 73°F | 635 ft | Lower Des Moines |
|
Des Moines River Blw Raccoon Riv At Des Moines, Ia
14 hours ago · USGS 05485500 |
9,930 cfs | 15.49 ft | · | 72°F | 779 ft | Lake Red Rock |
|
Cedar River At Cedar Rapids, Ia
14 hours ago · USGS 05464500 |
9,910 cfs | 6.33 ft | 62°F | 71°F | 712 ft | Middle Cedar |
|
Cedar River Near Conesville, Ia
1 day ago · USGS 05465000 |
9,350 cfs | 9.28 ft | · | 72°F | 593 ft | Lower Cedar |
|
Cedar River At Waterloo, Ia
14 hours ago · USGS 05464000 |
7,060 cfs | 7.55 ft | · | 69°F | 823 ft | Middle Cedar |
|
Raccoon River At Fleur Drive, Ia
15 hours ago · USGS 05484900 |
6,700 cfs | 7.20 ft | · | 72°F | 797 ft | North Raccoon |
|
Iowa River Near Lone Tree, Ia
14 hours ago · USGS 05455700 |
6,150 cfs | 9.89 ft | · | 72°F | 601 ft | Lower Iowa |
|
Cedar River At Cedar Falls, Ia
15 hours ago · USGS 05463050 |
5,890 cfs | 78.70 ft | · | 69°F | 853 ft | Middle Cedar |
|
Des Moines River At Keosauqua, Ia
14 hours ago · USGS 05490500 |
5,800 cfs | 12.18 ft | 80°F | 73°F | 579 ft | Lower Des Moines |
|
Des Moines River At 2nd Avenue, Ia
14 hours ago · USGS 05482000 |
5,070 cfs | 17.04 ft | 32°F | 72°F | 808 ft | Middle Des Moines |
|
Skunk River At Augusta, Ia
15 hours ago · USGS 05474000 |
4,940 cfs | 5.90 ft | · | 72°F | 553 ft | Skunk |
|
Raccoon River At 63rd Street At Des Moines, Ia
14 hours ago · USGS 05484650 |
4,860 cfs | 24.58 ft | · | 72°F | 797 ft | North Raccoon |
|
Des Moines River Near Saylorville, Ia
14 hours ago · USGS 05481650 |
4,820 cfs | 6.43 ft | · | 71°F | 819 ft | Middle Des Moines |
|
Wapsipinicon River Near De Witt, Ia
14 hours ago · USGS 05422000 |
4,550 cfs | 10.03 ft | · | 70°F | 646 ft | Lower Wapsipinicon |
|
Raccoon River At Van Meter, Ia
14 hours ago · USGS 05484500 |
4,520 cfs | 6.64 ft | 32°F | 74°F | 862 ft | North Raccoon |
|
South Skunk River Near Oskaloosa, Ia
14 hours ago · USGS 05471500 |
4,060 cfs | 15.56 ft | · | 72°F | 692 ft | South Skunk |
|
Middle River Near Indianola, Ia
14 hours ago · USGS 05486490 |
3,980 cfs | 16.14 ft | · | 72°F | 794 ft | Lake Red Rock |
|
Iowa River At Iowa City, Ia
14 hours ago · USGS 05454500 |
3,570 cfs | 13.10 ft | · | 72°F | 643 ft | Lower Iowa |
|
Iowa River At Marengo, Ia
14 hours ago · USGS 05453100 |
3,490 cfs | 10.90 ft | · | 70°F | 729 ft | Middle Iowa |
|
South Skunk River At Colfax, Ia
14 hours ago · USGS 05471050 |
3,460 cfs | 13.70 ft | · | 72°F | 793 ft | South Skunk |
|
Wapsipinicon River Near Anamosa, Ia
14 hours ago · USGS 05421740 |
3,300 cfs | 9.09 ft | · | 69°F | 779 ft | Lower Wapsipinicon |
|
Wapsipinicon River At Independence, Ia
14 hours ago · USGS 05421000 |
3,180 cfs | 7.26 ft | · | 68°F | 889 ft | Upper Wapsipinicon |
|
Iowa River Below Coralville Dam Nr Coralville, Ia
14 hours ago · USGS 05453520 |
3,120 cfs | 51.56 ft | · | 71°F | 669 ft | Middle Iowa |
|
Iowa River Near Belle Plaine, Ia
14 hours ago · USGS 05452500 |
3,120 cfs | 10.66 ft | · | 69°F | 748 ft | Middle Iowa |
|
Des Moines River Near Stratford, Ia
14 hours ago · USGS 05481300 |
3,030 cfs | 7.55 ft | · | 69°F | 902 ft | Middle Des Moines |
|
South Skunk River Below Squaw Creek Near Ames, Ia
14 hours ago · USGS 05471000 |
2,950 cfs | 16.08 ft | · | 70°F | 872 ft | South Skunk |
|
North River Near Norwalk, Ia
14 hours ago · USGS 05486000 |
2,890 cfs | 18.38 ft | · | 72°F | 811 ft | Lake Red Rock |
|
Maquoketa River Near Maquoketa, Ia
14 hours ago · USGS 05418500 |
2,620 cfs | 13.56 ft | · | 68°F | 646 ft | Maquoketa |
|
Cedar River At Janesville, Ia
14 hours ago · USGS 05458500 |
2,620 cfs | 3.30 ft | · | 68°F | 859 ft | Upper Cedar |
|
Turkey River At Garber, Ia
14 hours ago · USGS 05412500 |
2,330 cfs | 8.86 ft | 71°F | 68°F | 646 ft | Turkey |
|
Iowa River At Marshalltown, Ia
14 hours ago · USGS 05451500 |
2,260 cfs | 12.69 ft | · | 69°F | 853 ft | Middle Iowa |
|
South Raccoon River At Redfield, Ia
15 hours ago · USGS 05484000 |
2,100 cfs | 5.53 ft | 32°F | 71°F | 917 ft | South Raccoon |
|
English River At Kalona, Ia
14 hours ago · USGS 05455500 |
1,890 cfs | 9.70 ft | · | 72°F | 655 ft | Lower Iowa |
|
Cedar River At Waverly, Ia
14 hours ago · USGS 05458300 |
1,840 cfs | 5.11 ft | 71°F | 70°F | 895 ft | Upper Cedar |
|
South Skunk River Near Ames, Ia
14 hours ago · USGS 05470000 |
1,830 cfs | 7.49 ft | · | 70°F | 928 ft | South Skunk |
|
Shell Rock River At Shell Rock, Ia
14 hours ago · USGS 05462000 |
1,700 cfs | 8.93 ft | · | 70°F | 882 ft | Shell Rock |
|
East Nishnabotna River At Red Oak, Ia
13 hours ago · USGS 06809500 |
1,700 cfs | 9.43 ft | · | 71°F | 1,013 ft | East Nishnabotna |
|
South River Near Ackworth, Ia
14 hours ago · USGS 05487470 |
1,500 cfs | 10.15 ft | · | 73°F | 805 ft | Lake Red Rock |
|
East Nishnabotna River Near Atlantic, Ia
14 hours ago · USGS 06809210 |
1,410 cfs | 5.75 ft | · | 71°F | 1,109 ft | East Nishnabotna |
|
Volga River At Littleport, Ia
14 hours ago · USGS 05412400 |
1,320 cfs | 7.82 ft | · | 68°F | 694 ft | Turkey |
|
Raccoon River Near West Des Moines, Ia
2 days ago · USGS 05484600 |
1,280 cfs | 31.19 ft | · | 72°F | 844 ft | North Raccoon |
|
West Fork Cedar River At Finchford, Ia
14 hours ago · USGS 05458900 |
1,100 cfs | 8.91 ft | · | 68°F | 859 ft | West Fork Cedar |
|
Nishnabotna River Above Hamburg, Ia
13 hours ago · USGS 06810000 |
1,100 cfs | 9.30 ft | · | 72°F | 904 ft | Nishnabotna |
|
Squaw Creek At Ames, Ia
14 hours ago · USGS 05470500 |
1,050 cfs | 4.20 ft | · | 70°F | 907 ft | South Skunk |
|
Nodaway River At Clarinda, Ia
14 hours ago · USGS 06817000 |
932 cfs | 11.67 ft | · | 73°F | 966 ft | West Nodaway |
|
Little Sioux River Near Turin, Ia
14 hours ago · USGS 06607500 |
917 cfs | 7.84 ft | · | 71°F | 1,029 ft | Little Sioux |
|
South Fork Iowa River Ne Of New Providence, Ia
14 hours ago · USGS 05451210 |
908 cfs | 6.66 ft | · | 71°F | 963 ft | Upper Iowa |
|
Cedar Creek Near Oakland Mills, Ia
14 hours ago · USGS 05473400 |
870 cfs | 6.96 ft | · | 72°F | 590 ft | Skunk |
|
Black Hawk Creek At Hudson, Ia
15 hours ago · USGS 05463500 |
867 cfs | 10.25 ft | · | 71°F | 897 ft | Middle Cedar |
|
Cedar River At Charles City, Ia
14 hours ago · USGS 05457700 |
794 cfs | 3.20 ft | · | 71°F | 977 ft | Upper Cedar |
|
Turkey River Above French Hollow Cr At Elkader, Ia
14 hours ago · USGS 05412020 |
780 cfs | 6.25 ft | · | 67°F | 726 ft | Turkey |
|
Salt Creek Near Elberon, Ia
14 hours ago · USGS 05452000 |
778 cfs | 10.35 ft | · | 69°F | 802 ft | Middle Iowa |
|
Boyer River At Logan, Ia
13 hours ago · USGS 06609500 |
764 cfs | 5.62 ft | · | 72°F | 1,014 ft | Boyer |
|
Indian Creek Near Mingo, Ia
14 hours ago · USGS 05471200 |
756 cfs | 6.05 ft | · | 71°F | 827 ft | South Skunk |
|
Big Creek Near Mt. Pleasant, Ia
14 hours ago · USGS 05473450 |
753 cfs | 7.59 ft | · | 72°F | 672 ft | Skunk |
|
Beaver Creek Near Grimes, Ia
14 hours ago · USGS 05481950 |
748 cfs | 6.34 ft | · | 71°F | 829 ft | Middle Des Moines |
|
Boone River Near Webster City, Ia
14 hours ago · USGS 05481000 |
733 cfs | 3.56 ft | 35°F | 71°F | 1,028 ft | Boone |
|
Maquoketa River At Manchester, Ia
14 hours ago · USGS 05416900 |
710 cfs | 6.29 ft | · | 67°F | 920 ft | Maquoketa |
|
Monona-Harrison Ditch Near Turin, Ia
14 hours ago · USGS 06602400 |
693 cfs | 6.78 ft | · | 71°F | 1,021 ft | Monona-Harrison Ditch |
|
West Nishnabotna River At Randolph, Ia
13 hours ago · USGS 06808500 |
693 cfs | 8.78 ft | 78°F | 72°F | 956 ft | West Nishnabotna |
|
Soldier River At Pisgah, Ia
14 hours ago · USGS 06608500 |
690 cfs | 5.09 ft | · | 71°F | 1,047 ft | Blackbird-Soldier |
|
Wolf Creek Near Dysart, Ia
14 hours ago · USGS 05464220 |
685 cfs | 4.27 ft | · | 69°F | 835 ft | Middle Cedar |
|
English Creek Near Knoxville, Ia
14 hours ago · USGS 05488200 |
648 cfs | 14.30 ft | · | 72°F | 749 ft | Lower Des Moines |
|
Wapsipinicon River Near Tripoli, Ia
14 hours ago · USGS 05420680 |
633 cfs | 10.41 ft | · | 67°F | 1,019 ft | Upper Wapsipinicon |
|
Fourmile Creek At Des Moines, Ia
14 hours ago · USGS 05485640 |
612 cfs | 6.27 ft | · | 72°F | 813 ft | Lake Red Rock |
|
Upper Iowa River Near Dorchester, Ia
14 hours ago · USGS 05388250 |
567 cfs | 7.38 ft | · | 66°F | 668 ft | Upper Iowa |
|
Cedar Creek Near Bussey, Ia
14 hours ago · USGS 05489000 |
556 cfs | 6.81 ft | · | 73°F | 696 ft | Lower Des Moines |
|
Turkey River Near Eldorado, Ia
14 hours ago · USGS 05411850 |
553 cfs | 6.18 ft | · | 67°F | 897 ft | Turkey |
|
North Fork Maquoketa River Near Fulton, Ia
14 hours ago · USGS 05418400 |
479 cfs | 3.65 ft | 39°F | 68°F | 689 ft | Maquoketa |
|
Big Sioux River At Akron, Ia
14 hours ago · USGS 06485500 |
479 cfs | 4.86 ft | · | 71°F | 1,151 ft | Lower Big Sioux |
|
Des Moines River At Fort Dodge, Ia
14 hours ago · USGS 05480500 |
474 cfs | 3.99 ft | · | 71°F | 974 ft | Middle Des Moines |
|
West Nishnabotna River At Hancock, Ia
13 hours ago · USGS 06807410 |
471 cfs | 3.45 ft | · | 71°F | 1,089 ft | West Nishnabotna |
|
Fourmile Creek Near Ankeny, Ia
14 hours ago · USGS 05485605 |
470 cfs | 5.52 ft | · | 71°F | 911 ft | Lake Red Rock |
|
Beaver Creek At New Hartford, Ia
14 hours ago · USGS 05463000 |
408 cfs | 3.82 ft | · | 68°F | 890 ft | Middle Cedar |
|
Walnut Creek At Des Moines, Ia
15 hours ago · USGS 05484800 |
402 cfs | 5.31 ft | · | 72°F | 808 ft | North Raccoon |
|
White Breast Creek Near Dallas, Ia
14 hours ago · USGS 05487980 |
400 cfs | 8.04 ft | · | 73°F | 773 ft | Lake Red Rock |
|
North Raccoon River Near Jefferson, Ia
14 hours ago · USGS 05482500 |
399 cfs | 5.44 ft | 37°F | 72°F | 978 ft | North Raccoon |
|
North Skunk River Near Sigourney, Ia
14 hours ago · USGS 05472500 |
389 cfs | 5.63 ft | · | 72°F | 664 ft | North Skunk |
|
Old Mans Creek Near Iowa City, Ia
14 hours ago · USGS 05455100 |
368 cfs | 4.89 ft | 46°F | 72°F | 654 ft | Lower Iowa |
|
Middle Raccoon River At Panora, Ia
14 hours ago · USGS 05483600 |
346 cfs | 4.99 ft | 35°F | 73°F | 997 ft | South Raccoon |
|
Upper Iowa River At Decorah, Ia
15 hours ago · USGS 05387500 |
319 cfs | 2.03 ft | · | 67°F | 854 ft | Upper Iowa |
|
Clear Creek Near Coralville, Ia
14 hours ago · USGS 05454300 |
318 cfs | 3.53 ft | · | 71°F | 660 ft | Lower Iowa |
|
Maple River At Mapleton, Ia
14 hours ago · USGS 06607200 |
280 cfs | 5.13 ft | · | 71°F | 1,114 ft | Maple |
|
Upper Iowa River At Bluffton, Ia
15 hours ago · USGS 05387440 |
260 cfs | 3.54 ft | · | 66°F | 970 ft | Upper Iowa |
|
Little Cedar River Near Ionia, Ia
14 hours ago · USGS 05458000 |
232 cfs | 4.31 ft | · | 71°F | 1,000 ft | Upper Cedar |
|
Little Sioux River At Correctionville, Ia
14 hours ago · USGS 06606600 |
232 cfs | 4.73 ft | · | 71°F | 1,106 ft | Little Sioux |
|
Des Moines River At Humboldt, Ia
14 hours ago · USGS 05476750 |
194 cfs | 3.22 ft | · | 71°F | 1,066 ft | Upper Des Moines |
|
Winnebago River At Mason City, Ia
14 hours ago · USGS 05459500 |
184 cfs | 5.16 ft | · | 69°F | 1,101 ft | Winnebago |
|
Floyd River At James, Ia
14 hours ago · USGS 06600500 |
161 cfs | 8.30 ft | · | 71°F | 1,117 ft | Floyd |
|
Big Bear Creek At Ladora, Ia
14 hours ago · USGS 05453000 |
157 cfs | 11.81 ft | · | 70°F | 771 ft | Middle Iowa |
|
Clear Creek Near Oxford, Ia
14 hours ago · USGS 05454220 |
146 cfs | 4.24 ft | · | 71°F | 722 ft | Lower Iowa |
|
East Fork Des Moines River At Dakota City, Ia
1 day ago · USGS 05479000 |
137 cfs | 7.86 ft | · | 71°F | 1,043 ft | East Fork Des Moines |
|
Little Sioux River At Linn Grove, Ia
14 hours ago · USGS 06605850 |
128 cfs | 4.92 ft | · | 70°F | 1,249 ft | Little Sioux |
|
Yellow River At Ion, Ia
14 hours ago · USGS 05389000 |
121 cfs | 5.76 ft | · | 66°F | 681 ft | Coon-Yellow |
|
Turkey River At Spillville, Ia
14 hours ago · USGS 05411600 |
109 cfs | 2.38 ft | · | 66°F | 1,067 ft | Turkey |
|
Middle Raccoon River Near Bayard, Ia
14 hours ago · USGS 05483450 |
102 cfs | 9.44 ft | · | 70°F | 1,054 ft | South Raccoon |
|
Thompson River At Davis City, Ia
14 hours ago · USGS 06898000 |
100 cfs | 1.20 ft | · | 73°F | 910 ft | Thompson |
|
Rock River Near Rock Valley, Ia
14 hours ago · USGS 06483500 |
86 cfs | 4.26 ft | · | 70°F | 1,238 ft | Rock |
|
Timber Creek Near Marshalltown, Ia
14 hours ago · USGS 05451700 |
75 cfs | 2.90 ft | · | 71°F | 862 ft | Middle Iowa |
|
North Raccoon River Near Sac City, Ia
14 hours ago · USGS 05482300 |
68 cfs | 6.97 ft | 75°F | 68°F | 1,179 ft | North Raccoon |
|
Iowa River Near Rowan, Ia
14 hours ago · USGS 05449500 |
66 cfs | 3.76 ft | · | 68°F | 1,187 ft | Upper Iowa |
|
Rapid Creek Near Iowa City, Ia
14 hours ago · USGS 05454000 |
64 cfs | 5.02 ft | · | 71°F | 688 ft | Lower Iowa |
|
Walnut Creek Near Hartwick, Ia
14 hours ago · USGS 05452200 |
41 cfs | 1.68 ft | · | 72°F | 806 ft | Middle Iowa |
|
Chariton River Near Moulton, Ia
14 hours ago · USGS 06904010 |
35 cfs | 18.53 ft | · | 73°F | 847 ft | Upper Chariton |
|
East Fork 102 River At Bedford, Ia
14 hours ago · USGS 06819185 |
32 cfs | 10.97 ft | · | 74°F | 1,084 ft | One Hundred And Two |
|
Ocheyedan River Near Spencer, Ia
14 hours ago · USGS 06605000 |
31 cfs | 1.82 ft | · | 70°F | 1,317 ft | Little Sioux |
|
Floyd River At Alton, Ia
14 hours ago · USGS 06600100 |
26 cfs | 5.34 ft | · | 71°F | 1,289 ft | Floyd |
|
South Fork Chariton River Near Promise City, Ia
14 hours ago · USGS 06903700 |
24 cfs | 3.27 ft | · | 73°F | 922 ft | Upper Chariton |
|
Chariton River Near Rathbun, Ia
14 hours ago · USGS 06903900 |
22 cfs | 2.35 ft | · | 74°F | 855 ft | Upper Chariton |
|
Richland Creek Near Haven, Ia
14 hours ago · USGS 05451900 |
21 cfs | 10.62 ft | · | 72°F | 817 ft | Middle Iowa |
|
Rock River Below Tom Creek At Rock Rapids, Ia
14 hours ago · USGS 06483290 |
16 cfs | 6.53 ft | · | 70°F | 1,316 ft | Rock |
|
Chariton River Near Chariton, Ia
14 hours ago · USGS 06903400 |
13 cfs | 4.71 ft | · | 73°F | 968 ft | Upper Chariton |
|
Bloody Run Creek Near Marquette, Ia
1 day ago · USGS 05389400 |
0 cfs | 3.47 ft | · | 67°F | 634 ft | Coon-Yellow |
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See every Iowa gauge ranked against normal.
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Flow report FAQ
About Iowa streamflow
What are river levels like in Iowa right now?
As of August 15, 2026, Iowa rivers are running at 190% of normal across 117 USGS streamgauges, and the Mississippi River At Clinton is reporting the highest discharge at 36,400 cfs. The full sortable gauge table is below.
Which Iowa river is running highest right now?
As of August 15, 2026, the highest discharge in Iowa is 36,400 cfs on the Mississippi River At Clinton. See the sortable gauge table for the full statewide ranking.
Are Iowa rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Iowa rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
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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