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July 1, 2011 flooding on the Wind River, Wyoming.

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In Montana

In Wyoming

In Montana

In Wyoming

 

DATA CENTER

  • Current conditions

ABOUT THE WYOMING-MONTANA WATER SCIENCE CENTER

USGS IN YOUR STATE

USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusettes South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Wyoming and Montana FloodWatch

The USGS monitors flood and high-flow conditions at more than 300 streamgages across Montana and Wyoming. Water level and flow information are used by the National Weather Service to make accurate flood forecasts. The map to the right (from USGS's WaterWatch Web site) show the location of USGS streamgages in Montana and Wyoming currently at or above flood stage (depicted as a black triangle) or measuring high-flow conditions (depicted as blue circles). Hover over any symbol for a summary of currently flow conditions; select the symbol for more data and other information. High-flow conditions are expressed as percentiles comparing current (within the past few hours) instantaneous flow to historical daily mean flow for all days of the year. Flood stages are determined by the National Weather Service; not all USGS streamgages have flood stages. Current-conditions data are provisional and subject to change. A depiction of other streamgages at or above flood stage is available the NWS River Conditions Map.

Included on this page are maps, tables, and charts that summarize current flood conditions using data from USGS streamgages; photographs of current and historic flooding; information on mobile applications for current USGS streamflow data; and links to USGS flood publications and other resources for flood information.

Flood News

  • New 20170511 The Vital Nature of Streamgaging | Feature Story |
  • Missouri April record flooding | Release |
  • California snowmelt flooding concerns | Release |

Flood and High-Flow Photographs

2017 Water Year

  • New 20170615 12329500 Flint Cr at Maxville MT
    June 14 2017: 1,120 ft3/s (measured); gage height 6.00 ft; daily mean = 193 ft3/s, 75 yrs of record Photograph by K. Finley, USGS
  • New 20170615 06225500 Wind R nr Crowheart WY
    June 9 2017: 13,300 ft3/s (mean for day); gage height 3.90 ft; historical daily mean = 3,760 ft3/s, 71 yrs of record Photograph by USGS
  • | Feb 10 2017 | Feb 11 2017 |
    February 10-11 2017: Ice flow damages USGS 06235500 Little Wind R nr Riverton WY. Photographs by USGS.

Flood Apps and Pubs

  • USGS Mobile Water Data (Beta): USGS streamflow data formatted for your smartphone
  • USGS WaterNow: On-demand, current conditions for water data directly to your mobile phone or email
  • USGS WaterAlert: Current conditions water data texted or emailed to you
    • New WaterAlert Help including information on how to manage your subscription.
  • 100-year flood--Its all about chance | Poster |
  • Flood hazards--A National threat | Fact Sheet |
  • Flood management benefits of USGS streamgaging program--National Hydrologic Warning Council | Report (4.3 MB) |

Historical Floods

  • Flood of August 1, 1985 in Cheyenne, Wyoming | Web | Atlas |
  • New 20170501 Floods of May 1981 in west-central Montana | Web |
  • Floods of May 1978 in southeastern Montana and northeastern Wyoming | Web | Report | Data |
  • Floods of June 1964 in northwestern Montana | Web | Report |
  • Reports about historical floods in Wyoming | Bibliography |
  • Video 2011: The Year of the Flood.
  • 1976 Big Thompson flood, Colorado--Thirty years later | Summary | Fact Sheet (6.4 MB) |
  • The 1972 Black Hills-Rapid City flood revisited | Web Page | Fact Sheet (5.6 MB) |
  • Large floods in the United States: Where they happen and why | Summary | Report (7.3 MB) |
  • The world's largest floods, past and present: Their causes and magnitudes | Summary | Report (0.8 MB) |

Flood Links

Map of Flood and High-Flow Conditions in Montana and Wyoming.

Map of Flood and High-Flow Conditions in Montana and Wyoming.

Map legend for below normal 7-day average streamflow condition map

Flood Tracking Charts

Selected streamgages New 20170621

  • 09205000 Jun 19, 2017 (record) | ght | q | New Fork R nr Big Piney WY
  • 06221400 Jun 17, 2017 (record) | ght | q | Dinwoody Cr ab Lakes nr Burris WY
  • 12329500 Jun 14, 2017 (record) | ght | q | Flint Cr at Maxville MT
  • 09209400 Jun 11, 2017 (2nd hi) | ght | q | Green R nr La Barge WY
  • 06218500 Jun 09, 2017 (2nd hi) | ght | q | Wind R nr Dubois WY
  • 06225500 Jun 09, 2017 (2nd hi) | ght | q | Wind R nr Crowheart WY


  • 06183450 Mar 20, 2017 (ice jam) | ght | q | Big Muddy Cr nr Antelope MT
  • 06172310 Oct 10, 2016 | ght | q | Milk R at Tampico MT
  • 06166000 Oct 07, 2016 | ght | q | Beaver Cr bel Guston Coulee nr Saco MT
  • 06167500 Oct 05, 2016 | ght | q | Beaver Cr nr Hinsdale MT

Other Current Flood and High-Flow Products

Rainfall Calculator

Find out how many gallons of water falls on an area when it rains.

All the water in floods comes from the sky—but have you ever wondered just how many gallons of water falls on an area when it rains? You might be surprised at how much water comes down. Use our Water Science rainfall calculator to see how many gallons of water falls from the sky during a rainstorm.

Historical flood photograph
^ Bighorn River at entrance to Hot Springs State Park,
Thermopolis, WY, July 24, 1923.
Maximum discharge: 29,800 ft3/s.

06311400 06037500 13022500 06278300 06279500 06289600 06298000 10020300 09196500 06289820 06191000 06429905 06224000 06311000 13023000 06289000 13018300 13015000 09213700 06313500 09217000 06036940 09224700 06228000 06274300 06657000 06233000 06622900 06282000 06309200 09205000 09218500 06305700 06187915 06218500 06253000 06299980 06220800 06634620 13011900 06280300 09211200 13046995 06278500 13010065 09257000 13016305 13025500 09223000 09220000 06317000 06635000 10028500 09229500 06225500 06659580 06622700 13011500 06425720 13013650 06228350 10020100 13018350 09253000 06428500 09209400 06318500 06392950 13027500 06279940 06227600 06324970 06652000 10032000 10038000 06276500 06430850 13016450 06646000 06674500 10039500 06324500 10016900 06317020 09255000 06037100 06429997 06429500 13014500 06755960 09217900 06221400 09188500 06623800 06207500 09210500 10011500 06259000 06660000 06392900 06225000 13018750 06630000 06634060 06430500 06430532 06625000 06638090 09213500 06036805 06209500 06630465 06281000 06306300 06620000 06268600 09215000 06285100 09258050 06186500 13011000 06190540 06632400 06188000 06036905 06670500 06639000 06386500 06426500 06297500 06235500 09258980 06038500 06037500 05017500 06287000 05014500 06066500 06016000 06118500 12323250 06020600 06041000 06289820 06154400 06033000 06294500 12305000 12362500 06326500 06090300 06191000 06035000 06101500 12388700 06065500 12375900 06062500 12342500 06061500 06289600 06050000 06204050 06289000 06307500 06019500 06142400 12306500 12358500 06177500 12329500 12374250 06077200 06307616 06089000 06140500 12323840 12302055 12323850 12371550 06130000 06126500 12340500 06012500 06211000 06108800 12354000 12340000 12323700 12352500 06023800 06209500 06327500 06200000 06132000 06211500 06167500 06040000 12334510 06102050 06334500 12301933 06188000 06077500 06110020 06023500 12323750 06085800 06025500 06090500 06090800 06017000 12335500 06080900 12323760 06308500 12381400 12392155 06175510 06052500 06295000 12365700 06074000 06204070 06288400 06127500 06181000 12332000 06133500 06099000 06166000 06024020 12323670 06024450 06073500 06023100 12366080 06306300 12331800 06308400 12389500 06125600 06093200 12390700 06174500 05015500 06115200 06082200 06026420 06164510 06071300 12324590 06038800 06307600 12323600 06324970 12366500 06123030 06178000 13039500 12363000 12323710 06024580 12370000 06026500 12323720 06214500 06324500 12331500 06006000 06207500 06191500 12338300 06111800 06154100 12389000 06102500 480608115242901 12325500 12344000 12335100 06091700 06190540 12372000 06185110 06187915 06063000 06183450 06054500 06036650 06048650 06108000 06309000 06130500 06078500 12377150 06175100 06175520 12350250 12353000 06151500 06329610 06295113 12304500 06177000 12324680 06099500 06018500 12323770 06307830 06027600 06172310 06329500 06023000 06287800 06216900 06078200 06119600 06294000 06195600 06114700 05014300 06336600 06088500 12355500 06109500 12323240 12330000 06120500 06205000 06025250 06192500 12334550 06208500 06155500 06155030 06139500 12354500 12324400 12359800 06076690 06040800 12324200 06026210 06131200 06043500 06169500 12301250 12362000 06024540 13039000 06135000 06090000 05018000 06295220 06079000 06185500 12323800 05018500 Go to WaterWatch (offsite) for a larger map with additional options

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Page Last Modified: Wednesday, 21-Jun-2017 12:25:38 EDT