Wisconsin streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Wisconsin. Built for paddlers, anglers, water managers, and flood researchers.
Streamflow levels across Wisconsin are currently 92% of normal, with the Mississippi River At Prescott reporting the highest discharge in the state at 22,600 cfs and a gauge stage of 26.04 ft.
Meanwhile, the Black River At Neillsville is seeing a spike today — up 128% 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 Wisconsin's named rivers.
State-wide streamflow overview
The Wisconsin 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
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 26.04 ft
Biggest 24h spike
Now 367 cfs
Network coverage
USGS gauges feeding 0 named rivers in Wisconsin.
Wisconsin USGS streamgauges
Every USGS gauge Snoflo tracks in Wisconsin. 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 Prescott, Wi
20 hours ago · USGS 05344500 |
21,600 cfs | 25.98 ft | · | 71°F | 679 ft | Rush-Vermillion |
|
Wisconsin River At Muscoda, Wi
20 hours ago · USGS 05407000 |
7,560 cfs | 2.02 ft | 62°F | 62°F | 672 ft | Lower Wisconsin |
|
Fox River At Oshkosh, Wi
20 hours ago · USGS 04082400 |
7,010 cfs | 6.58 ft | 78°F | 65°F | 745 ft | Upper Fox |
|
Wisconsin River Near Wisconsin Dells, Wi
20 hours ago · USGS 05404000 |
5,560 cfs | 3.27 ft | 35°F | 63°F | 810 ft | Castle Rock |
|
Fox River At Appleton, Wi
20 hours ago · USGS 04084445 |
4,860 cfs | 5.65 ft | 82°F | 65°F | 735 ft | Lower Fox |
|
Chippewa River At Durand, Wi
20 hours ago · USGS 05369500 |
4,170 cfs | 3.24 ft | · | 70°F | 695 ft | Lower Chippewa |
|
St. Croix River At St. Croix Falls, Wi
20 hours ago · USGS 05340500 |
4,140 cfs | 3.82 ft | 81°F | 71°F | 682 ft | Lower St. Croix |
|
Wisconsin River At Wisconsin Rapids, Wi
20 hours ago · USGS 05400760 |
3,060 cfs | 3.02 ft | · | 63°F | 971 ft | Castle Rock |
|
Menominee River Near Mc Allister, Wi
20 hours ago · USGS 04067500 |
2,650 cfs | 9.69 ft | 74°F | 61°F | 643 ft | Menominee |
|
Chippewa River At Chippewa Falls, Wi
20 hours ago · USGS 05365500 |
2,430 cfs | 3.67 ft | · | 69°F | 807 ft | Lower Chippewa |
|
Wisconsin River At Rothschild, Wi
21 hours ago · USGS 05398000 |
2,280 cfs | 13.01 ft | · | 63°F | 1,138 ft | Lake Dubay |
|
Wolf River At New London, Wi
20 hours ago · USGS 04079000 |
1,930 cfs | 4.18 ft | 78°F | 63°F | 751 ft | Wolf |
|
Wisconsin River At Merrill, Wi
20 hours ago · USGS 05395000 |
1,720 cfs | 4.64 ft | · | 62°F | 1,232 ft | Lake Dubay |
|
Rock River At Afton, Wi
20 hours ago · USGS 05430500 |
1,530 cfs | 4.08 ft | · | 61°F | 778 ft | Upper Rock |
|
Menominee River At Niagara, Wi
20 hours ago · USGS 04065106 |
1,480 cfs | 5.70 ft | · | 62°F | 869 ft | Menominee |
|
Red Cedar River At Menomonie, Wi
20 hours ago · USGS 05369000 |
1,120 cfs | 6.70 ft | · | 69°F | 781 ft | Red Cedar |
|
Flambeau River Near Bruce, Wi
20 hours ago · USGS 05360500 |
1,000 cfs | 5.71 ft | · | 67°F | 1,066 ft | Flambeau |
|
Fox River At Berlin, Wi
20 hours ago · USGS 04073500 |
958 cfs | 9.21 ft | 84°F | 63°F | 748 ft | Upper Fox |
|
Black River Near Galesville, Wi
20 hours ago · USGS 05382000 |
943 cfs | 4.08 ft | · | 65°F | 659 ft | Black |
|
Pecatonica River At Martintown, Wi
20 hours ago · USGS 05434500 |
909 cfs | 6.70 ft | · | 62°F | 804 ft | Pecatonica |
|
St. Croix River Near Danbury, Wi
20 hours ago · USGS 05333500 |
906 cfs | · | 32°F | 68°F | 894 ft | Upper St. Croix |
|
Black River Ds St Hwy 54 @ Black River Falls, Wi
20 hours ago · USGS 053813595 |
814 cfs | 36.62 ft | · | 63°F | 738 ft | Black |
|
Peshtigo River At Peshtigo, Wi
20 hours ago · USGS 04069500 |
745 cfs | 2.02 ft | 79°F | 64°F | 620 ft | Peshtigo |
|
Fox River At Princeton, Wi
20 hours ago · USGS 04073365 |
732 cfs | 4.72 ft | · | 62°F | 754 ft | Upper Fox |
|
Kickapoo River At Steuben, Wi
20 hours ago · USGS 05410490 |
732 cfs | 7.61 ft | · | 63°F | 672 ft | Kickapoo |
|
Rock River At Robert Street At Fort Atkinson, Wi
20 hours ago · USGS 05427085 |
707 cfs | 11.52 ft | · | 61°F | 774 ft | Upper Rock |
|
Peshtigo River At Porterfield, Wi
21 hours ago · USGS 04069416 |
635 cfs | 8.21 ft | · | 62°F | 647 ft | Peshtigo |
|
Trempealeau River At Dodge, Wi
20 hours ago · USGS 05379500 |
622 cfs | 6.25 ft | · | 69°F | 675 ft | Trempealeau |
|
Fox River At Oil Tank Depot At Green Bay, Wi
20 hours ago · USGS 040851385 |
606 cfs | 579.74 ft | 81°F | 64°F | 576 ft | Lower Fox |
|
Red Cedar River Near Colfax, Wi
20 hours ago · USGS 05367500 |
599 cfs | 2.57 ft | · | 69°F | 941 ft | Red Cedar |
|
Chippewa River Near Bruce, Wi
20 hours ago · USGS 05356500 |
577 cfs | 1.78 ft | · | 67°F | 1,077 ft | Upper Chippewa |
|
Trempealeau River At Arcadia, Wi
20 hours ago · USGS 05379400 |
509 cfs | 3.84 ft | · | 66°F | 728 ft | Trempealeau |
|
Brule River Near Commonwealth, Wi
21 hours ago · USGS 04062011 |
488 cfs | 6.99 ft | · | 62°F | 1,200 ft | Brule |
|
Lemonweir River At New Lisbon, Wi
20 hours ago · USGS 05403500 |
488 cfs | 5.18 ft | · | 63°F | 889 ft | Castle Rock |
|
Wisconsin River @ Rainbow Lake Nr Lake Tomahawk, Wi
20 hours ago · USGS 05391000 |
486 cfs | 1.57 ft | · | 63°F | 1,582 ft | Upper Wisconsin |
|
La Crosse River Near La Crosse, Wi
20 hours ago · USGS 05383075 |
481 cfs | 3.26 ft | · | 69°F | 647 ft | La Crosse-Pine |
|
Oconto River Near Oconto, Wi
20 hours ago · USGS 04071765 |
456 cfs | 4.54 ft | 75°F | 62°F | 609 ft | Oconto |
|
Milwaukee River At Milwaukee, Wi
20 hours ago · USGS 04087000 |
431 cfs | · | 79°F | 65°F | 609 ft | Milwaukee |
|
Wolf River At Langlade, Wi
20 hours ago · USGS 04074950 |
410 cfs | 8.03 ft | · | 61°F | 1,253 ft | Wolf |
|
Yahara River Near Fulton, Wi
20 hours ago · USGS 05430175 |
388 cfs | 4.82 ft | 43°F | 61°F | 797 ft | Upper Rock |
|
Oconto River Near Gillett, Wi
20 hours ago · USGS 04071000 |
379 cfs | 1.13 ft | 74°F | 62°F | 741 ft | Oconto |
|
Fox River Near New Munster, Wi
20 hours ago · USGS 05545750 |
352 cfs | 5.71 ft | 79°F | 62°F | 750 ft | Upper Fox |
|
Peshtigo River Near Wabeno, Wi
20 hours ago · USGS 04067958 |
338 cfs | 4.25 ft | 54°F | 61°F | 987 ft | Peshtigo |
|
Baraboo River Near Baraboo, Wi
20 hours ago · USGS 05405000 |
331 cfs | 7.73 ft | · | 63°F | 806 ft | Baraboo |
|
Milwaukee River Near Cedarburg, Wi
20 hours ago · USGS 04086600 |
312 cfs | 6.05 ft | · | 64°F | 672 ft | Milwaukee |
|
Black River At Neillsville, Wi
20 hours ago · USGS 05381000 |
311 cfs | 3.75 ft | · | 64°F | 985 ft | Black |
|
Chippewa River At Bishops Bridge Near Winter, Wi
20 hours ago · USGS 05356000 |
292 cfs | 4.38 ft | · | 67°F | 1,276 ft | Upper Chippewa |
|
Grant River At Burton, Wi
20 hours ago · USGS 05413500 |
287 cfs | 6.15 ft | · | 64°F | 622 ft | Grant-Little Maquoketa |
|
Sugar River Near Brodhead, Wi
20 hours ago · USGS 05436500 |
285 cfs | 1.10 ft | · | 62°F | 780 ft | Sugar |
|
Embarrass River Near Embarrass, Wi
20 hours ago · USGS 04078500 |
274 cfs | 3.19 ft | · | 63°F | 815 ft | Wolf |
|
Yellow River At Necedah, Wi
20 hours ago · USGS 05403000 |
270 cfs | 9.93 ft | · | 64°F | 907 ft | Castle Rock |
|
Rock River At Watertown, Wi
20 hours ago · USGS 05425500 |
269 cfs | 1.68 ft | · | 61°F | 804 ft | Upper Rock |
|
Yahara River At Mc Farland, Wi
20 hours ago · USGS 05429500 |
265 cfs | 4.55 ft | 44°F | 63°F | 846 ft | Upper Rock |
|
Crawfish River At Milford, Wi
20 hours ago · USGS 05426000 |
258 cfs | 2.38 ft | · | 61°F | 785 ft | Crawfish |
|
Pine River Below Pine R Powerplant Nr Florence, Wi
20 hours ago · USGS 04064500 |
254 cfs | 2.20 ft | · | 62°F | 1,094 ft | Menominee |
|
Pecatonica River At Darlington, Wi
20 hours ago · USGS 05432500 |
246 cfs | 3.44 ft | · | 63°F | 827 ft | Pecatonica |
|
Kickapoo River At La Farge, Wi
20 hours ago · USGS 05408000 |
241 cfs | 3.49 ft | · | 63°F | 794 ft | Kickapoo |
|
Hay River At Wheeler, Wi
20 hours ago · USGS 05368000 |
233 cfs | 3.73 ft | · | 69°F | 914 ft | Red Cedar |
|
Yahara River At East Main Street At Madison, Wi
20 hours ago · USGS 05428500 |
214 cfs | 5.42 ft | 46°F | 63°F | 852 ft | Upper Rock |
|
La Crosse River At Sparta, Wi
20 hours ago · USGS 05382325 |
191 cfs | 3.84 ft | · | 63°F | 788 ft | La Crosse-Pine |
|
White River Near Ashland, Wi
19 hours ago · USGS 04027500 |
188 cfs | · | · | 69°F | 697 ft | Bad-Montreal |
|
Prairie River Near Merrill, Wi
20 hours ago · USGS 05394500 |
187 cfs | 2.47 ft | 63°F | 62°F | 1,300 ft | Lake Dubay |
|
Pike River At Amberg, Wi
20 hours ago · USGS 04066500 |
163 cfs | 2.68 ft | · | 61°F | 888 ft | Menominee |
|
Jump River At Sheldon, Wi
20 hours ago · USGS 05362000 |
163 cfs | 3.53 ft | · | 67°F | 1,109 ft | Jump |
|
Rock River At Horicon, Wi
20 hours ago · USGS 05424057 |
158 cfs | 6.74 ft | · | 62°F | 879 ft | Upper Rock |
|
Nemadji River Near South Superior, Wi
20 hours ago · USGS 04024430 |
157 cfs | 4.92 ft | · | 65°F | 626 ft | Beartrap-Nemadji |
|
East Br Pecatonica River Near Blanchardville, Wi
20 hours ago · USGS 05433000 |
157 cfs | 4.82 ft | · | 63°F | 815 ft | Pecatonica |
|
Platte River Near Rockville, Wi
20 hours ago · USGS 05414000 |
155 cfs | 4.66 ft | · | 63°F | 665 ft | Grant-Little Maquoketa |
|
Yahara River At Forton St. Bridge At Stoughton, Wi
20 hours ago · USGS 05429700 |
154 cfs | 6.89 ft | · | 62°F | 840 ft | Upper Rock |
|
Eau Claire River At Kelly, Wi
20 hours ago · USGS 05397500 |
141 cfs | · | · | 63°F | 1,205 ft | Lake Dubay |
|
Red River At Morgan Road Near Morgan, Wi
21 hours ago · USGS 04077630 |
125 cfs | 5.92 ft | 71°F | 63°F | 1,036 ft | Wolf |
|
Bois Brule River At Brule, Wi
20 hours ago · USGS 04025500 |
112 cfs | 1.49 ft | · | 68°F | 990 ft | Beartrap-Nemadji |
|
Sheboygan River At Sheboygan, Wi
20 hours ago · USGS 04086000 |
101 cfs | 2.06 ft | · | 65°F | 634 ft | Manitowoc-Sheboygan |
|
Badfish Creek Near Cooksville, Wi
20 hours ago · USGS 05430150 |
99 cfs | 5.38 ft | · | 62°F | 821 ft | Upper Rock |
|
Bad River Near Odanah, Wi
19 hours ago · USGS 04027000 |
98 cfs | 2.29 ft | 50°F | 69°F | 692 ft | Bad-Montreal |
|
Rib River At Rib Falls, Wi
20 hours ago · USGS 05396000 |
92 cfs | 2.29 ft | · | 62°F | 1,237 ft | Lake Dubay |
|
Cedar Creek Near Cedarburg, Wi
20 hours ago · USGS 04086500 |
92 cfs | 6.01 ft | · | 63°F | 818 ft | Milwaukee |
|
Kinnickinnic River Near River Falls, Wi
20 hours ago · USGS 05342000 |
91 cfs | 8.11 ft | · | 71°F | 703 ft | Lower St. Croix |
|
Tenmile Creek Near Nekoosa, Wi
20 hours ago · USGS 05401050 |
83 cfs | 5.02 ft | · | 62°F | 985 ft | Castle Rock |
|
Turtle Creek At Carvers Rock Road Near Clinton, Wi
20 hours ago · USGS 05431486 |
80 cfs | 3.86 ft | · | 61°F | 853 ft | Upper Rock |
|
Namekagon River At Leonards, Wi
20 hours ago · USGS 05331833 |
72 cfs | 1.53 ft | 68°F | 67°F | 1,287 ft | Namekagon |
|
Manitowoc River At Manitowoc, Wi
20 hours ago · USGS 04085427 |
68 cfs | 4.40 ft | 46°F | 63°F | 610 ft | Manitowoc-Sheboygan |
|
Bark River Near Rome, Wi
1 day ago · USGS 05426250 |
67 cfs | 1.96 ft | · | 61°F | 819 ft | Upper Rock |
|
Yahara River At State Hwy 113 At Madison, Wi
20 hours ago · USGS 05427850 |
61 cfs | 10.00 ft | 42°F | 62°F | 846 ft | Upper Rock |
|
Bear River Near Manitowish Waters, Wi
20 hours ago · USGS 05357335 |
59 cfs | 3.84 ft | · | 64°F | 1,579 ft | Flambeau |
|
Beaver Dam River At Beaver Dam, Wi
20 hours ago · USGS 05425912 |
56 cfs | 839.36 ft | · | 61°F | 858 ft | Crawfish |
|
Fox River At Waukesha, Wi
20 hours ago · USGS 05543830 |
52 cfs | 2.89 ft | · | 62°F | 810 ft | Upper Fox |
|
Yellow River At Babcock, Wi
20 hours ago · USGS 05402000 |
50 cfs | 2.30 ft | · | 62°F | 1,024 ft | Castle Rock |
|
Kewaunee River Near Kewaunee, Wi
20 hours ago · USGS 04085200 |
46 cfs | 9.00 ft | 72°F | 64°F | 605 ft | Door-Kewaunee |
|
Big Eau Pleine River At Stratford, Wi
20 hours ago · USGS 05399500 |
41 cfs | 2.73 ft | · | 62°F | 1,169 ft | Lake Dubay |
|
Popple River Near Fence, Wi
20 hours ago · USGS 04063700 |
40 cfs | 2.05 ft | 75°F | 62°F | 1,419 ft | Menominee |
|
Black Earth Creek At Black Earth, Wi
20 hours ago · USGS 05406500 |
40 cfs | 2.06 ft | 56°F | 62°F | 819 ft | Lower Wisconsin |
|
Mukwonago River At Mukwonago, Wi
20 hours ago · USGS 05544200 |
39 cfs | 2.25 ft | · | 62°F | 794 ft | Upper Fox |
|
Tomorrow River Near Nelsonville, Wi
20 hours ago · USGS 04080798 |
33 cfs | 8.68 ft | 51°F | 63°F | 1,085 ft | Wolf |
|
Bark River At Nagawicka Road At Delafield, Wi
20 hours ago · USGS 05426067 |
28 cfs | 12.59 ft | · | 62°F | 901 ft | Upper Rock |
|
Menomonee River At Wauwatosa, Wi
20 hours ago · USGS 04087120 |
26 cfs | 1.64 ft | 32°F | 65°F | 629 ft | Milwaukee |
|
Eau Galle River At Spring Valley, Wi
20 hours ago · USGS 05370000 |
21 cfs | 12.25 ft | 74°F | 69°F | 916 ft | Lower Chippewa |
|
Whittlesey Creek Near Ashland, Wi
20 hours ago · USGS 040263205 |
20 cfs | 2.35 ft | · | 69°F | 613 ft | Beartrap-Nemadji |
|
Spirit River At Spirit Falls, Wi
20 hours ago · USGS 05393500 |
20 cfs | 1.49 ft | · | 62°F | 1,457 ft | Upper Wisconsin |
|
Root River At Racine, Wi
20 hours ago · USGS 04087240 |
17 cfs | 2.34 ft | · | 66°F | 644 ft | Pike-Root |
|
Pike River Near Racine, Wi
1 day ago · USGS 04087257 |
16 cfs | 1.37 ft | · | 65°F | 643 ft | Pike-Root |
|
Yahara River At Windsor, Wi
20 hours ago · USGS 05427718 |
15 cfs | 1.96 ft | 63°F | 62°F | 875 ft | Upper Rock |
|
South Branch Rock River At Waupun, Wi
20 hours ago · USGS 05423500 |
12 cfs | 2.18 ft | · | 62°F | 885 ft | Upper Rock |
|
Root River Canal Near Franklin, Wi
20 hours ago · USGS 04087233 |
9 cfs | 2.15 ft | · | 63°F | 693 ft | Pike-Root |
|
Menomonee River At Menomonee Falls, Wi
20 hours ago · USGS 04087030 |
6 cfs | 2.98 ft | 33°F | 62°F | 772 ft | Milwaukee |
|
Badger Mill Creek At Verona, Wi
20 hours ago · USGS 05435943 |
5 cfs | 4.46 ft | 62°F | 63°F | 940 ft | Sugar |
|
Piscasaw Creek Near Walworth, Wi
20 hours ago · USGS 05438283 |
4 cfs | 5.77 ft | · | 62°F | 939 ft | Kishwaukee |
|
Jackson Creek At Mound Road Near Elkhorn, Wi
20 hours ago · USGS 05431016 |
4 cfs | 8.42 ft | 62°F | 61°F | 932 ft | Upper Rock |
|
Spring Creek Near Waunakee, Wi
20 hours ago · USGS 05427930 |
4 cfs | 10.72 ft | 45°F | 62°F | 861 ft | Upper Rock |
|
Kinnickinnic River @ S. 11th Street @ Milwaukee, Wi
20 hours ago · USGS 04087159 |
4 cfs | 5.98 ft | 73°F | 66°F | 601 ft | Milwaukee |
|
Oak Creek At South Milwaukee, Wi
20 hours ago · USGS 04087204 |
3 cfs | 2.30 ft | · | 66°F | 637 ft | Pike-Root |
|
White Creek @ Spring Grove Road Nr Green Lake, Wi
20 hours ago · USGS 04073462 |
3 cfs | 4.23 ft | · | 63°F | 833 ft | Upper Fox |
|
Brewery Creek-Upstream Site-At Cross Plains, Wi
20 hours ago · USGS 05406469 |
3 cfs | 2.38 ft | 212°F | 62°F | 917 ft | Lower Wisconsin |
|
Underwood Creek At Wauwatosa, Wi
20 hours ago · USGS 04087088 |
3 cfs | 8.12 ft | 32°F | 64°F | 684 ft | Milwaukee |
|
East River At Ct Highway Zz Near Greenleaf, Wi
20 hours ago · USGS 04085108 |
2 cfs | 4.64 ft | 36°F | 62°F | 631 ft | Lower Fox |
|
Pheasant Branch At Airport Road Nr Middleton, Wi
20 hours ago · USGS 05427943 |
2 cfs | 3.98 ft | 46°F | 63°F | 924 ft | Upper Rock |
|
Pheasant Branch At Middleton, Wi
20 hours ago · USGS 05427948 |
2 cfs | 3.49 ft | 75°F | 63°F | 912 ft | Upper Rock |
|
Little Menomonee River At Milwaukee, Wi
20 hours ago · USGS 04087070 |
2 cfs | 3.20 ft | · | 63°F | 704 ft | Milwaukee |
|
Root River Near Franklin, Wi
20 hours ago · USGS 04087220 |
1 cfs | 1.88 ft | · | 63°F | 678 ft | Pike-Root |
|
Honey Creek At Wauwatosa, Wi
20 hours ago · USGS 04087119 |
1 cfs | 9.36 ft | 56°F | 65°F | 644 ft | Milwaukee |
|
Lincoln Creek At Sherman Boulevard At Milwaukee, Wi
20 hours ago · USGS 040869416 |
1 cfs | 3.54 ft | · | 65°F | 638 ft | Milwaukee |
|
Little Menomonee River Near Freistadt, Wi
20 hours ago · USGS 04087050 |
1 cfs | 2.08 ft | 32°F | 62°F | 729 ft | Milwaukee |
|
Root River At Grange Avenue At Greenfield, Wi
20 hours ago · USGS 04087214 |
1 cfs | 10.47 ft | · | 64°F | 720 ft | Pike-Root |
|
Wilson Park Creek @ Gmia Outfall #7 @ Milwaukee, Wi
20 hours ago · USGS 040871475 |
0 cfs | 10.77 ft | 65°F | 66°F | · | Milwaukee |
See every Wisconsin gauge ranked against normal.
- Percentile rank & % of median for all 124 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About Wisconsin streamflow
Where does the Wisconsin 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 Wisconsin 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 Wisconsin 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.