Severe Thunderstorms and Possible Flooding in the East; Extreme Heat in the West.

Scattered severe storms with wind damage, large hail, and a few tornadoes will be possible this afternoon and evening across much of the Mid Atlantic and Southeast. Heavy rain may cause instances of flash flooding from eastern Kentucky to southern New York. Out west, dangerous heat will develop through Saturday, with record-breaking temperatures expected. Read More >

WFO Great Falls Hydrograph Page

Use the drop down menu to select the Hydrograph for the desired creek or river.

Some select sites will have Probability of Exceedence Plots below the Hydrographs.

Select Here

How To Read The Hydrograph Images - See More	How to Read The Probability of Exceedence Plot Images - See More

Missouri Basin

Red Rock Creek

Seasonally maintained site Gauge reading may be affected by ice Red Rock Creek above Lakes near Lakeview	Seasonally maintained site Gauge reading may be affected by ice Red Rock River at Lima Reservoir near Lima	Seasonally maintained site Gauge reading may be affected by ice Red Rock River above Clark Canyon Reservoir

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Grass Hopper Creek

Gauge reading may be affected by ice Grasshopper Creek at Bannack SP

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Beaverhead River

Gauge reading may be affected by ice Clark Canyon Dam on the Beaverhead River near Dillon	Seasonally maintained site Gauge reading may be affected by ice Beaverhead River at Barretts	Gauge reading may be affected by ice Beaverhead River near Dillon

Gauge reading may be affected by ice Beaverhead River near Twin Bridges

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Wise River

Gauge reading may be affected by ice Wise River at Wise River

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Ruby River

Seasonally maintained site Gauge reading may be affected by ice Ruby River near Twin Bridges

Gauge reading may be affected by ice Ruby River above Ruby Reservoir near Alder	Gauge reading may be affected by ice Ruby River below Ruby Reservoir near Alder	Gauge reading may be affected by ice Ruby River at Harrington nr Silver Star

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Big Hole River

Seasonally maintained site Gauge reading may be affected by ice Big Hole River below Hamilton Ditch near Twin Bridges

Seasonally maintained site Gauge reading may be affected by ice Big Hole River near Jackson	Seasonally maintained site Gauge reading may be affected by ice Big Hole River above Spring Creek near Jackson	Seasonally maintained site Gauge reading may be affected by ice Big Hole River at Miner Creek near Jackson

Seasonally maintained site Gauge reading may be affected by ice Big Hole River below Big Lake Creek at Wisdom	Seasonally maintained site Gauge reading may be affected by ice Big Hole River below Mudd Creek near Wisdom	Seasonally maintained site Gauge reading may be affected by ice Big Hole River near Wise River

Gauge reading may be affected by ice Big Hole River at Maiden Rock near Divide	Gauge reading may be affected by ice Big Hole River near Melrose	Seasonally maintained site Gauge reading may be affected by ice Big Hole River near Glen

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Jefferson River

Gauge reading may be affected by ice Jefferson River near Twin Bridges	Seasonally maintained site Gauge reading may be affected by ice Jefferson River at Parsons Bridge near Silver Star	Gauge reading may be affected by ice Jefferson River near Three Forks

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Boulder River

Gauge reading may be affected by ice Boulder River near Boulder

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Willow Creek

Seasonally maintained site Gauge reading may be affected by ice Willow Creek near Harrison

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Madison River

Gauge reading may be affected by ice Madison River below Ennis Lake/Powerplant near McAllister

Gauge reading may be affected by ice Madison River near West Yellowstone	Gauge reading may be affected by ice Hebgen Dam near West Yellowstone	Gauge reading may be affected by ice Madison River below Hebgen Dam near Grayling

Gauge reading may be affected by ice Madison River at Kirby Ranch near Cameron	Gauge reading may be affected by ice Madison River Cameron	Gauge reading may be affected by ice Madison River above Ennis Lake/Powerplant near McAllister

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Gallatin River

Gauge reading may be affected by ice Gallatin River near Gallatin Gateway	Gauge reading may be affected by ice Gallatin River near Logan

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East Gallatin River

Gauge reading may be affected by ice East Gallatin River above Water Reclamation Facility near Bozeman

Gauge reading may be affected by ice East Gallatin River near Manhattan

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Missouri River

Gauge reading may be affected by ice Missouri River at Toston	Gauge reading may be affected by ice Canyon Ferry Reservoir near Helena	Gauge reading may be affected by ice Helena Valley Reservoir

Gauge reading may be affected by ice Missouri River below Hauser Dam near Helena	Gauge reading may be affected by ice Missouri River below Holter Dam near Wolf Creek	Gauge reading may be affected by ice Missouri River near Ulm

Gauge reading may be affected by ice Missouri River at Cascade	Gauge reading may be affected by ice Missouri River at Great Falls	Gauge reading may be affected by ice Missouri River near Great Falls

Gauge reading may be affected by ice Missouri River at Fort Benton	Gauge reading may be affected by ice Missouri River at Virgelle	Gauge reading may be affected by ice Missouri River near Landusky
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Prickly Pear Creek

Gauge reading may be affected by ice Prickly Pear Creek near Clancy

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Tenmile Creek

Gauge reading may be affected by ice Tenmile Creek near Rimini

Gauge reading may be affected by ice Tenmile Creek near Helena

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Little Prickly Pear Creek

Gauge reading may be affected by ice Little Prickly Pear Creek at Wolf Creek

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Dearborn River

Gauge reading may be affected by ice Dearborn River near Craig

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Smith River

Gauge reading may be affected by ice Smith River near Ulm

Seasonally maintained site Gauge reading may be affected by ice Smith River near Fort Logan	Gauge reading may be affected by ice Smith River below Eagle Creek near Fort Logan	Gauge site has been discontinued Gauge reading may be affected by ice Smith River near Eden
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Sun River

Gauge reading may be affected by ice North Fork of Sun River near Augusta	Gauge reading may be affected by ice South Fork of Sun River above Augusta	Gauge reading may be affected by ice Gibson Dam on the Sun River near Augusta

Gauge reading may be affected by ice Sun River below Diversion Dam near Augusta	Gauge reading may be affected by ice Pishkun Reservoir near Augusta	Gauge reading may be affected by ice Willow Creek Reservoir

Gauge reading may be affected by ice Sun River below Willow Creek near Augusta	Gauge reading may be affected by ice Sun River at Simms	Gauge reading may be affected by ice Big Coulee below Beale Canal

Gauge reading may be affected by ice Sun River near Vaughn	Gauge reading may be affected by ice Mill Coulee Ck nr Sun River	Gauge reading may be affected by ice Duck Creek abv Simms Ashuelot Rd Bridge

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Muddy Creek

Gauge reading may be affected by ice Tank Coulee near Power	Gauge reading may be affected by ice Muddy Creek near Power	Gauge reading may be affected by ice Muddy Creek at Vaughn

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Belt Creek

Gauge reading may be affected by ice Belt Creek near Monarch

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Lake Creek

Seasonally maintained site Gauge reading may be affected by ice Lake Creek near Power

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Two Medicine River

Gauge reading may be affected by ice Two Medicine River below South Fork

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Birch Creek

Gauge reading may be affected by ice Swift Reservoir near Dupuyer

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Lake Frances

Gauge reading may be affected by ice Lake Frances Reservoir near Valier

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Badger Creek

Gauge reading may be affected by ice Badger Creek below Four Horns Canal near Browning

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Cut Bank Creek

Gauge reading may be affected by ice Cut Bank Creek at Cut Bank

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Marias River

Gauge reading may be affected by ice Marias River near Loma

Gauge reading may be affected by ice Marias River near Shelby	Gauge reading may be affected by ice Tiber Reservoir/Lake Elwell	Gauge reading may be affected by ice Marias River near Chester

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Teton River

Gauge reading may be affected by ice Teton River near Dutton

Seasonally maintained site Gauge reading may be affected by ice Teton River at Loma

Seasonally maintained site Gauge reading may be affected by ice Teton River below South Fork near Choteau	Gauge reading may be affected by ice Teton River above Hwy 221 bridge near Choteau	Gauge reading may be affected by ice Teton River above Springhill

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Judith River

Gauge reading may be affected by ice Judith River above Carr Creek near Utica

Gauge reading may be affected by ice Judith River near Winifred near mouth

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Big Spring Creek

Gauge reading may be affected by ice Big Spring Creek at R&B Trading Post near Lewistown

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NF Musselshell River

Gauge reading may be affected by ice NF Musselshell River below Bair Reserv

Gauge reading may be affected by ice NF Musselshell River near Delphine

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SF Musselshell River

Gauge reading may be affected by ice SF Musselshell River above Martinsdale

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Musselshell River

Gauge reading may be affected by ice Musselshell River Martinsdale Supply Canal

Gauge reading may be affected by ice Musselshell River near Martinsdale

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South Fork Milk River

Gauge site has been discontinued Gauge reading may be affected by ice South Fork Milk River near Babb

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North Fork Milk River

Seasonally maintained site Gauge reading may be affected by ice North Fork Milk River above St Mary Canal near Browning

Seasonally maintained site Gauge reading may be affected by ice North Fork Milk River near international boundary near Browning

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Milk River

Gauge reading may be affected by ice Milk River at Havre

Seasonally maintained site Gauge reading may be affected by ice Milk River at Harlem

Seasonally maintained site Gauge reading may be affected by ice Milk River at Del Bonita... Western Crossing	Seasonally maintained site Gauge reading may be affected by ice Milk River at Eastern Crossing of International Boundary	Gauge reading may be affected by ice Fresno Reservoir near Havre

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Big Sandy Creek

Seasonally maintained site Gauge reading may be affected by ice Big Sandy Creek near Havre

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Clear Creek

Seasonally maintained site Gauge reading may be affected by ice Clear Creek near Chinook near mouth

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Lodge Creek

Seasonally maintained site Gauge reading may be affected by ice Lodge Creek below McRae Creek at international boundary

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Battle Creek

Gauge reading may be affected by ice Battle Creek near Chinook

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Peoples Creek

Gauge reading may be affected by ice Peoples Creek near Hays

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Hudson Bay - Saskatchewan Basin

Swiftcurrent Creek

Gauge reading may be affected by ice Swiftcurrent Ck above Swiftcurrent Lake at Many Glacier	Gauge reading may be affected by ice Swiftcurrent Creek at Many Glacier	Gauge reading may be affected by ice Swiftcurrent Creek at Sherburne Reservoir near Babb

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Saint Mary River

Gauge reading may be affected by ice Saint Mary River at International Boundary

Gauge reading may be affected by ice Saint Mary Canal at Intake near Babb	Gauge reading may be affected by ice Saint Mary Canal at St Mary Crossing near Babb	Gauge reading may be affected by ice Saint Mary Canal near Babb