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Red Flag Warning
2026-08-10T21:00:00-06:00

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon to 9 PM MDT Tuesday. * IMPACTS: Low Humidities...Hot Temperatures...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Southwest WY Fire Zone....279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Southwest WY...Sweetwater. In West Central WY...Lincoln...Sublette. * WIND: West 10 to 20 mph with gusts up to 30 mph. * THUNDERSTORMS: Lightning and outflow wind gusts to 60 mph will be possible through Monday afternoon. * HUMIDITY: As low as 14 percent. * TEMPERATURES: Highs in the middle 80s to near 90 degrees.

Green River Below Fontenelle Reservoir, Wy Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 967.5
01-02 950.2
01-03 961.25
01-04 966.36
01-05 952.42
01-06 957.83
01-07 957.83
01-08 962.25
01-09 957.58
01-10 966.75
01-11 966.0
01-12 966.33
01-13 960.25
01-14 950.75
01-15 951.75
01-16 963.25
01-17 1020.54
01-18 1010.42
01-19 986.69
01-20 977.0
01-21 960.67
01-22 983.69
01-23 1004.58
01-24 984.85
01-25 998.92
01-26 998.5
01-27 1001.92
01-28 996.38
01-29 999.77
01-30 985.64
01-31 983.71
02-01 981.36
02-02 986.93
02-03 985.93
02-04 990.57
02-05 990.08
02-06 998.33
02-07 1022.46
02-08 1079.92
02-09 1048.14
02-10 1008.43
02-11 959.69
02-12 1023.0
02-13 1012.21
02-14 1009.71
02-15 1010.43
02-16 1003.36
02-17 1009.46
02-18 1009.92
02-19 1007.62
02-20 1009.86
02-21 978.43
02-22 982.14
02-23 979.57
02-24 980.07
02-25 960.75
02-26 958.31
02-27 984.93
02-28 987.0
02-29 1068.75
03-01 992.71
03-02 979.71
03-03 993.71
03-04 988.43
03-05 980.86
03-06 983.64
03-07 982.93
03-08 975.36
03-09 969.0
03-10 962.43
03-11 972.0
03-12 961.93
03-13 961.86
03-14 964.86
03-15 962.86
03-16 956.5
03-17 958.5
03-18 958.71
03-19 1003.47
03-20 1011.36
03-21 1038.13
03-22 1117.14
03-23 1196.8
03-24 1284.2
03-25 1281.4
03-26 1288.87
03-27 1285.13
03-28 1311.8
03-29 1310.0
03-30 1304.07
03-31 1340.71
04-01 1343.27
04-02 1309.47
04-03 1297.47
04-04 1286.2
04-05 1296.8
04-06 969.71
04-07 1325.36
04-08 1317.86
04-09 1324.86
04-10 1298.33
04-11 1290.4
04-12 1770.21
04-13 1346.0
04-14 1345.71
04-15 1363.0
04-16 1414.0
04-17 1437.15
04-18 1445.92
04-19 1443.08
04-20 1434.0
04-21 1416.57
04-22 1439.43
04-23 1430.43
04-24 1426.57
04-25 1445.62
04-26 1467.79
04-27 1530.5
04-28 1490.36
04-29 1481.14
04-30 1242.85
05-01 1534.73
05-02 1304.29
05-03 1296.93
05-04 1672.6
05-05 1707.67
05-06 1676.4
05-07 1729.0
05-08 1507.57
05-09 1916.33
05-10 1888.93
05-11 1928.73
05-12 1980.93
05-13 2055.0
05-14 1734.5
05-15 1804.23
05-16 2273.36
05-17 2357.21
05-18 2340.0
05-19 2369.2
05-20 2405.0
05-21 2448.73
05-22 2476.0
05-23 2566.2
05-24 2642.93
05-25 2725.73
05-26 2725.0
05-27 2778.73
05-28 2791.8
05-29 2792.07
05-30 2774.13
05-31 2773.6
06-01 2819.6
06-02 2837.67
06-03 2989.13
06-04 3142.73
06-05 3485.0
06-06 3656.36
06-07 3477.53
06-08 3589.4
06-09 3802.33
06-10 3937.73
06-11 4066.0
06-12 3955.36
06-13 3985.5
06-14 4133.21
06-15 4396.33
06-16 4487.0
06-17 4588.67
06-18 4471.27
06-19 4292.21
06-20 4262.57
06-21 4255.64
06-22 4318.57
06-23 4404.07
06-24 4370.0
06-25 4350.71
06-26 4179.57
06-27 3915.79
06-28 3764.14
06-29 3576.21
06-30 3502.29
07-01 3442.14
07-02 3297.21
07-03 3102.64
07-04 2487.69
07-05 2725.73
07-06 2679.6
07-07 2641.21
07-08 2581.0
07-09 2490.14
07-10 2358.93
07-11 2105.27
07-12 2038.71
07-13 1988.57
07-14 1864.6
07-15 1906.07
07-16 1886.0
07-17 1897.0
07-18 1958.93
07-19 1955.07
07-20 1802.53
07-21 1754.0
07-22 1879.21
07-23 1740.47
07-24 1714.53
07-25 1722.53
07-26 1657.87
07-27 1605.93
07-28 1540.8
07-29 1539.87
07-30 1524.21
07-31 1504.33
08-01 1496.38
08-02 1216.71
08-03 1342.53
08-04 1329.07
08-05 1292.4
08-06 1329.33
08-07 1358.87
08-08 1327.21
08-09 1310.36
08-10 1283.43
08-11 1349.5
08-12 1339.57
08-13 1351.14
08-14 1328.07
08-15 1331.14
08-16 1340.92
08-17 1283.0
08-18 1235.42
08-19 1253.23
08-20 1247.77
08-21 1246.62
08-22 1116.58
08-23 1247.64
08-24 1217.54
08-25 1164.46
08-26 1168.64
08-27 1168.79
08-28 1167.79
08-29 1161.14
08-30 1151.43
08-31 1089.54
09-01 1079.0
09-02 1075.79
09-03 1090.43
09-04 1085.5
09-05 1056.79
09-06 1048.85
09-07 1027.79
09-08 1052.79
09-09 1068.5
09-10 1090.07
09-11 1056.71
09-12 1054.0
09-13 1033.23
09-14 1041.93
09-15 1042.43
09-16 1000.07
09-17 1000.43
09-18 1000.93
09-19 994.43
09-20 991.0
09-21 981.79
09-22 983.38
09-23 969.0
09-24 976.0
09-25 973.71
09-26 960.29
09-27 939.79
09-28 935.36
09-29 924.86
09-30 967.31
10-01 967.5
10-02 985.08
10-03 977.46
10-04 971.54
10-05 975.57
10-06 970.79
10-07 971.07
10-08 957.86
10-09 950.86
10-10 957.64
10-11 960.43
10-12 951.21
10-13 940.64
10-14 947.57
10-15 963.77
10-16 963.08
10-17 968.07
10-18 964.29
10-19 959.07
10-20 952.62
10-21 941.54
10-22 943.14
10-23 948.79
10-24 951.0
10-25 950.14
10-26 912.15
10-27 942.07
10-28 924.54
10-29 912.14
10-30 901.0
10-31 897.86
11-01 896.23
11-02 904.69
11-03 901.0
11-04 901.36
11-05 901.36
11-06 882.77
11-07 884.62
11-08 888.85
11-09 900.0
11-10 921.54
11-11 922.46
11-12 923.85
11-13 918.15
11-14 923.21
11-15 954.77
11-16 968.29
11-17 964.71
11-18 970.54
11-19 969.46
11-20 970.15
11-21 961.79
11-22 975.08
11-23 928.85
11-24 933.38
11-25 932.92
11-26 957.57
11-27 956.67
11-28 971.23
11-29 991.71
11-30 934.0
12-01 934.29
12-02 965.86
12-03 961.14
12-04 966.64
12-05 975.08
12-06 959.42
12-07 977.38
12-08 974.71
12-09 982.08
12-10 979.86
12-11 977.93
12-12 976.43
12-13 972.64
12-14 982.77
12-15 988.08
12-16 962.75
12-17 958.0
12-18 1021.83
12-19 1007.23
12-20 1015.0
12-21 1013.92
12-22 1003.85
12-23 1005.54
12-24 1018.54
12-25 1025.62
12-26 969.33
12-27 963.83
12-28 976.45
12-29 972.64
12-30 988.82
12-31 961.83

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index