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Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Mean Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Mean Median Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Monthly Monthly Days Yr
1968 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0.000] 0.000$ [0.000] [0.000] 325 1968
1969 0.000$ 0.459$ 0.017$ 0.000$ 0.029$ 0.169$ 0.193$ 0.142$ 0.080$ 0.011$ 0.000$ 0.000$ 0.092$ 0.023$ 0 1969
1970 0.000$ 5.188$ 0.296$ 0.027$ 11.56 $ 8.555$ 0.158$ 0.127$ 0.100$ 0.019$ 0.000$ 0.000$ 2.169$ 0.114$ 0 1970
1971 9.961$141.1 $ 1.843$ 0.494$ 0.122$ 44.71 $ 0.346$ 0.315$ 0.142$ 0.038$ 0.000$ 0.000$ 16.59 $ 0.330$ 0 1971
1972 0.283$ 1.957$ 0.271$ 0.000$ 0.000$ 0.000$ 0.151$ 0.174$ 0.036$ 0.000$ 0.000$ 0.000$ 0.239$ 0.018$ 0 1972
1973 44.86 $ 0.667$ 82.01 $ 0.407$ 0.188$ 0.357$ 0.230$ 0.221$ 0.068$ 0.001$ 0.000$ 0.445$ 10.79 $ 0.293$ 0 1973
1974 38.15 $ 5.151$ [0.258] [0.137] 0.184$ 0.216$ 0.238$ 0.267$ 0.325! 0.011$ 0.000$ 1.602$ [3.878] [0.248] 16 1974
1975 0.037$ 0.019$ 0.023$ 0.027$ 0.000$ 0.000$ 0.000$ 0.044$ 0.005$ 0.000$ 0.000$468.2 $ 39.03 $ 0.012$ 0 1975
1976 7.617$ 2.707! 25.00 $ 0.222$ 0.130$ 0.146$ 0.161$ 0.135$ 0.063$ 0.022$ 0.000$ 0.007$ 3.018! 0.141! 0 1976
1977 0.069$ 0.275$ 0.016$ 0.000$ 0.000$ 0.000$ 0.232$ 1.824$ 0.097$ 0.000$ 0.000$ 0.108$ 0.218$ 0.042$ 0 1977
1978 1.002$ [0.344] [0.335] 0.170$ 0.020$ 0.053$ 0.101$ 1.687$ 0.084$ 0.004$ 0.000$ 0.000$ [0.317] [0.092] 11 1978
1979 0.015$ 0.681$ 4.351$ 0.008$ 0.023$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.193$ 0.439$ 0.004$ 0 1979
1980 12.55 $ 3.236$ 0.415$ 0.143$ 0.006$ 0.526$ 1.045$ 0.053$ 0.001$ 0.000$ 0.000$ 0.097! 1.506! 0.120! 0 1980
1981 [4.321] [ ] [0.497] 0.003! 0.000! 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ [0.438] [0.000] 49 1981
1982 19.39 $ 42.98 $ 1.279$ 0.150$ 0.459$ 0.107$ 0.067$ 0.022$ 0.000$ 0.000$ 0.000$ 0.966$ 5.451$ 0.128$ 0 1982
1983 0.000$ 0.101$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.009$ 0.000$ 0 1983
1984 1.434$ 2.819$213.6 $ 0.219$ 1.234$ 0.180$ 0.208$ 0.148$ 0.040$ 0.002$ 0.000$ 0.018$ 18.33 $ 0.194$ 0 1984
1985 2.250$ 79.37 $ 0.496$ 0.140$ 0.089$ 0.042$ 0.058$ 0.032$ 0.001$ 0.000$ 0.000$ 0.000$ 6.873$ 0.050$ 0 1985
1986 0.000$ 0.764$ 0.013$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.065$ 0.000$ 0 1986
1987 53.00 $ 6.984$ 0.966$ [0.007] [ ] [ ] [ ] [ ] [ ] [0.000] 0.000$ 0.000$ [8.708] [0.007] 176 1987
1988 0.876$ 8.686$ 0.482$ 1.657$ 1.155$ 0.151$ 0.114$ 0.083$ 0.013$ 0.000$ 0.000$ 0.466$ 1.140$ 0.308$ 0 1988
1989 0.257$ 0.775$ 0.505$ 2.841$ 0.114$ 15.39 $ 0.184$ 0.127$ 0.069$ 0.003$ 0.000$ 0.000$ 1.689$ 0.156$ 0 1989
1990 0.000$ 0.198$ 0.163$ 0.002$ 0.000$ 0.000$ 0.099$ 0.115$ 0.019$ 0.001$ 0.000$ 0.000$ 0.050$ 0.001$ 0 1990
1991 0.233$ 1.156$ 0.272$ 0.000$ 0.920$ 6.922$ 0.213$ 0.123$ 0.061$ 0.003$ 0.000$ 0.000$ 0.825$ 0.168$ 0 1991
1992 0.000$ 0.000$ 0.000$ 1.831$ 5.267$ 0.186$ 0.128$ 0.115$ 0.087$ 0.021$ 0.000$ 0.000$ 0.636$ 0.054$ 0 1992
1993 3.785$134.6 & 0.359^ 0.143^ 0.176^ 0.437^ 0.215^ 0.217^ 0.165^ 0.082^ 0.003^ 0.124^ 11.69 ^ 0.196^ 0 1993
1994 0.085^ 6.044^ 3.362^ 0.018^ 0.006^ 0.081^ 0.098^ 0.102^ 0.069^ 0.364^ 0.000^ 0.148^ 0.865^ 0.091^ 0 1994
1995 0.344^134.0 ^ 15.34 $ 0.547^ 0.190^ 0.920^ 0.328^ 0.234^ 0.172^ 0.085^ 0.019! 0.000! 12.68 ! 0.281! 0 1995
1996 0.000! 0.000^ 0.049^ 12.59 ^ 0.140^ 0.213^ 0.350^ 0.196^ 0.112^ 0.019^ 0.000^ 5.464^ 1.595! 0.126! 0 1996
1997 17.27 ^ 83.80 $ 1.265^ 0.221^ 0.270^ 0.276^ 0.332^ 0.361^ 0.233^ 0.032^ 0.000^ 0.000^ 8.672^ 0.273^ 0 1997
1998 0.000^ 0.019^ 4.375^ 0.151^ 0.387^ 0.416^ 1.200^ 0.145^ 0.083^ 0.009^ 0.000^ 0.000^ 0.565^ 0.114^ 0 1998
1999 0.055^111.8 ^ 96.29 & 10.59 & 0.490& 0.447& 0.390& 0.332^ 0.228^ 0.239^ 0.093^ 68.83 ^ 24.15 ^ 0.419^ 0 1999
2000 8.956$ 22.01 $206.8 $ 46.70 $ 5.578$ 0.821$ 0.613& 0.493& 0.342^ 0.215^ 0.183^ 0.848^ 24.46 ^ 0.835^ 0 2000
2001 2.581^144.5 $ 3.949& 0.335^ 0.425& 0.494& 0.552& 0.425& 0.338^ 0.235^ 0.077^ 0.000^ 12.83 ^ 0.425^ 0 2001
2002 0.005^ 1.221^ 2.651^ 0.146^ 0.226^ 0.494^ 0.390& 0.330^ 0.208^ 0.012^ 0.000^ 0.000^ 0.474^ 0.217^ 0 2002
942 Total
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%
Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Mean Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Mean Median Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Monthly Monthly Days Yr
2003 0.000^ 5.476^ 0.091^ 0.035^ 0.034^ 0.169^ 0.232^ 0.228^ 0.126^ 0.005^ 0.000^ 0.000^ 0.533^ 0.063^ 0 2003
2004 0.000^ 19.75 ^184.5 & 0.490^ 0.218^ 0.206^ 0.382^ 0.290^ 0.232^ 0.090^ 0.024^ 0.000^ 17.18 ^ 0.225^ 0 2004
2005 0.047^ 1.178^ 0.557^ 0.031^ 0.258^ 0.324^ 1.328& 0.335^ 0.205^ 0.045^ 0.002^ 0.000^ 0.359^ 0.231^ 0 2005
2006 63.92 ^ 29.21 $108.7 $227.1 $ 1.942$ 1.386$ 1.058$ 0.776$ 0.587& 0.604& 0.428^ 0.371^ 36.34 ^ 1.222^ 0 2006
2007 0.491^ 0.285^ 4.444^ 0.772& 0.708& 0.675& 0.639& 0.602& 0.642& 0.650& 0.948$ 1.803& 1.055^ 0.663^ 0 2007
2008 1.711& 27.78 $ 13.70 $ 11.82 $ 2.312$ 1.636$ 0.953& 0.734& 0.646& 0.487& 0.306^ 1.256^ 5.279^ 1.446^ 0 2008
2009 3.377^131.3 $ 8.958$ 0.927$ 0.997$ 1.475$ 1.295$ 1.179$ 0.952$ 0.743& 0.536& 0.406^ 12.68 ^ 1.088^ 0 2009
2010 4.480& 0.493& 0.668& 0.696$ 0.889$ 1.070$ 1.187$ 1.060$ 0.959$ 0.455^ 0.140^ 0.356^ 1.038^ 0.792^ 0 2010
2011 11.62 ^110.5 $ 29.51 $ 1.101$ 1.449$ 1.425$ 1.352$ 1.215$ 0.929$ 0.813$ 0.708& 0.214^ 13.40 ^ 1.283^ 0 2011
2012 59.18 ^ 12.72 $ 1.952$ 1.008$ 0.913$ 1.240$ 0.992$ 0.851$ 0.544^ 0.219^ 0.138^ 3.383^ 6.928^ 1.000^ 0 2012
2013 162.3 $ 12.01 $ 0.712& 1.397& 0.824$ 1.882$ 1.003$ 0.706$ 0.452^ 0.186^ 0.419^ 5.323^ 15.60 ^ 0.914^ 0 2013
2014 16.44 ^ 13.43 ^ 1.622^ 0.617^ 6.202$ 1.597$ 1.525$ 1.177$ 0.700^ 0.137^ 0.044^ 0.011^ 3.625^ 1.351^ 0 2014
2015 1.172^ 0.373^ 12.35 ^ 0.822& 12.45 $ 5.568$ 1.276$ 0.844$ 0.382^ 0.043^ 0.009^ 0.711^ 3.000^ 0.833^ 0 2015
2016 1.148^ 1.486^ 0.091^ 0.016^ 0.094^ 0.629^ 0.727& 0.543& 0.263^ 0.017^ 0.000^ 2.956^ 0.664^ 0.403^ 0 2016
2017 23.38 ^ 29.21 $ 1.278& 0.600& 0.452& 0.465& 0.483& 0.374^ 0.060^ 0.009^ 0.000^ 0.111^ 4.702^ 0.459^ 0 2017
2018 7.585^ 0.918& 0.088^ 0.068^ 0.015^ 2.279^ 0.566& 0.502& 0.220^ 0.001^ 0.000^ 0.000^ 1.020^ 0.154^ 0 2018
2019 0.072^ 0.041^ 0.548^ 0.347^ 0.188^ 0.264^ 0.356^ 0.300^ 0.112^ 0.000^ 0.000^ 0.328^ 0.213^ 0.226^ 0 2019
2020 0.582^110.4 ^ 0.622^ 0.192^ 0.193^ 0.260^ 0.248^ 0.211^ 0.009^ 0.000^ 0.673^ 10.11 ^ 10.29 ^ 0.254^ 0 2020
2021 0.942^ 74.63 & 2.547& 9.928& 6.809$ 0.903$ 0.748$ 0.488& 0.297^ 0.081^ 0.001^ 0.006^ 8.115^ 0.826^ 0 2021
2022 0.292^ 0.563^ 0.558^ 0.270^ 49.27 ^ 26.88 $ 0.853$ 0.797$ 0.664& 0.278^ 0.041^ 0.296^ 6.730^ 0.561^ 0 2022
2023 1.908^ 12.86 & 2.934& 0.580& 0.393& 0.625& 0.701$ 0.581& 0.280^ 0.003^ 0.000^ 0.027^ 1.741^ 0.581^ 0 2023
2024 0.159^ 0.118^ 10.78 ^ 0.390^ 0.438& 0.798& 0.787$ 0.865$ 0.458^ 0.155^ 1.337^ 0.068^ 1.363^ 0.448^ 0 2024
2025 6.578^ 2.208^ 0.226^ 0.147^ 0.218^ 0.422& 0.470& 0.553^ 0.227^ 0.006^ 0.000^ 1.165^ 1.018^ 0.324^ 0 2025
2026 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 2026
942 Total
Mean [10.47 ][27.51 ][18.51 ] [5.953] 2.083! 2.401^ 0.492^ 0.425^ 0.235! [0.113] [0.106] 9.938! [6.437] Mean
Med. [1.002] [3.028] [0.712] [0.221] 0.222! 0.429^ 0.348^ 0.295^ 0.134! [0.012] [0.000] 0.047! [0.233] Med.
Max [162.3 ][144.5 ][213.6 ][227.1 ] 49.27 ! 44.71 ^ 1.525^ 1.824^ 0.959! [0.813] [1.337]468.2 ! [39.03 ] Max
Min [0.000] [0.000] [0.000] [0.000] 0.000! 0.000^ 0.000^ 0.000^ 0.000! [0.000] [0.000] 0.000! [0.000] Min
OK 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 99% 100% 100% OK
Cnt 57 56 57 57 56 56 56 56 56 57 58 58 58 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%
Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Maximum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max Days Yr
1968 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0.000] 0.000$ [0.000] 325 1968
1969 0.000$ 9.119$ 0.121$ 0.000$ 0.500$ 0.390$ 0.244$ 0.191$ 0.134$ 0.037$ 0.000$ 0.000$ 9.119$ 0 1969
1970 0.000$ 85.14 $ 4.931$ 0.400$211.6 $207.0 $ 0.228$ 0.185$ 0.173$ 0.060$ 0.000$ 0.000$ 211.6 $ 0 1970
1971 164.1 $2266 $ 44.37$ 9.91$ 0.46$ 463.7 $ 0.40$ 0.51$ 0.21$ 0.11$ 0.00$ 0.00$ 2266 $ 0 1971
1972 5.18$ 59.69$ 3.99$ 0.00$ 0.00$ 0.00$ 0.35$ 0.25$ 0.10$ 0.00$ 0.00$ 0.00$ 59.69$ 0 1972
1973 778.7 $ 6.42$ 953.1 $ 1.86$ 0.40$ 1.00$ 0.28$ 0.62$ 0.11$ 0.02$ 0.00$ 44.74$ 953.1 $ 0 1973
1974 554.0 $ 82.79$ [0.52] [0.26] 0.26$ 0.25$ 0.62$ 0.41$ 6.66! 0.04$ 0.00$ 58.40$ [554.0 ] 16 1974
1975 0.28$ 0.20$ 0.17$ 0.14$ 0.00$ 0.00$ 0.01$ 0.05$ 0.04$ 0.00$ 0.00$3877 $ 3877 $ 0 1975
1976 61.12 $ 43.97 !209.6 $ 1.216$ 0.156$ 0.206$ 0.207$ 0.179$ 0.109$ 0.046$ 0.002$ 0.223$ 209.6 ! 0 1976
1977 0.914$ 10.73 $ 0.064$ 0.000$ 0.000$ 0.000$ 1.770$ 2.472$ 0.627$ 0.000$ 0.000$ 6.452$ 10.73 $ 0 1977
1978 75.58 $ [9.618] [2.104] 1.878$ 0.070$ 0.089$ 0.131$ 37.59 $ 0.179$ 0.023$ 0.000$ 0.000$ [75.58 ] 11 1978
1979 0.125$ 9.404$ 69.91 $ 0.291$ 0.502$ 0.001$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 18.70 $ 69.91 $ 0 1979
1980 225.0 $ 28.41 $ 13.18 $ 2.545$ 0.052$ 36.87 $ 24.46 $ 0.184$ 0.006$ 0.000$ 0.000$ 10.39 ! 225.0 ! 0 1980
1981 [57.77] [ ] [5.94] 0.04! 0.00! 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ [57.77] 49 1981
1982 187.2 $ 323.0 $ 30.13$ 1.20$ 7.40$ 0.16$ 0.08$ 0.04$ 0.00$ 0.00$ 0.00$ 107.5 $ 323.0 $ 0 1982
1983 0.00$ 1.59$ 0.01$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 1.59$ 0 1983
1984 32.59$ 167.1 $1909 $ 1.64$ 57.61$ 0.28$ 0.29$ 0.20$ 0.09$ 0.01$ 0.00$ 0.19$ 1909 $ 0 1984
1985 255.6 $ 643.0 $ 5.94$ 8.58$ 0.35$ 0.06$ 0.09$ 0.09$ 0.01$ 0.00$ 0.00$ 0.00$ 643.0 $ 0 1985
1986 0.00$ 13.58$ 0.07$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 13.58$ 0 1986
1987 1327 $ 165.6 $ 110.0 $ [0.02] [ ] [ ] [ ] [ ] [ ] [0.00] 0.00$ 0.01$ [1327 ] 176 1987
1988 33.26$ 115.3 $ 95.67$ 27.90$ 24.37$ 0.27$ 0.14$ 0.10$ 0.04$ 0.00$ 0.00$ 8.83$ 115.3 $ 0 1988
1989 32.14$ 22.35$ 8.38$ 67.82$ 0.40$ 185.6 $ 0.29$ 0.15$ 0.12$ 0.02$ 0.00$ 0.00$ 185.6 $ 0 1989
1990 0.00$ 3.45$ 1.13$ 0.01$ 0.00$ 0.00$ 0.14$ 0.17$ 0.05$ 0.00$ 0.00$ 0.00$ 3.45$ 0 1990
1991 3.25$ 26.79$ 3.94$ 0.00$ 45.86$ 53.46$ 0.30$ 0.19$ 0.11$ 0.02$ 0.00$ 0.00$ 53.46$ 0 1991
1992 0.00$ 0.00$ 0.00$ 101.5 $ 123.8 $ 0.23$ 0.15$ 0.16$ 0.14$ 0.06$ 0.00$ 0.00$ 123.8 $ 0 1992
1993 135.0 $2361 & 4.39^ 0.17^ 0.22^ 4.48^ 0.25^ 0.24^ 0.20^ 0.12^ 0.02^ 5.81^ 2361 ^ 0 1993
1994 0.57^ 111.9 ^ 113.9 ^ 0.05^ 0.05^ 0.10^ 0.11^ 0.12^ 0.09^ 77.23^ 0.01^ 3.18^ 113.9 ^ 0 1994
1995 39.37^ 863.8 ^ 235.5 $ 1.92^ 0.21^ 22.36^ 0.59^ 0.27^ 0.21^ 0.16^ 0.03! 0.00! 863.8 ! 0 1995
1996 0.00! 0.01^ 0.35^ 225.0 ^ 0.18^ 0.33^ 1.76^ 0.24^ 0.15^ 0.07^ 0.00^ 176.7 ^ 225.0 ! 0 1996
1997 146.7 ^ 647.2 $ 5.91^ 0.28^ 0.33^ 0.33^ 0.41^ 0.85^ 0.39^ 0.11^ 0.00^ 0.00^ 647.2 ^ 0 1997
1998 0.00^ 0.12^ 194.0 ^ 0.35^ 20.87^ 1.14^ 29.95^ 0.38^ 0.09^ 0.05^ 0.00^ 0.00^ 194.0 ^ 0 1998
1999 0.37^ 713.6 ^ 718.1 & 72.10& 0.69& 0.58& 0.44& 0.42^ 0.29^ 3.36^ 0.17^ 785.0 ^ 785.0 ^ 0 1999
2000 96.38$ 88.83$1255 $ 141.7 $ 16.93$ 1.60$ 0.69& 0.55& 0.44^ 0.30^ 0.64^ 40.12^ 1255 ^ 0 2000
2001 47.19^1280 $ 33.18& 0.42^ 0.57& 0.58& 0.71& 0.54& 0.39^ 0.33^ 0.22^ 0.00^ 1280 ^ 0 2001
2002 0.05^ 34.19^ 58.24^ 0.33^ 1.59^ 1.88^ 0.42& 0.36^ 0.33^ 0.06^ 0.00^ 0.14^ 58.24^ 0 2002
942 Total
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%
Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Maximum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max Days Yr
2003 0.00^ 114.9 ^ 1.58^ 0.08^ 0.09^ 0.39^ 0.30^ 0.28^ 0.22^ 0.04^ 0.00^ 0.00^ 114.9 ^ 0 2003
2004 0.00^ 289.7 ^1775 & 23.35^ 0.23^ 0.21^ 0.58^ 0.38^ 0.31^ 0.19^ 0.07^ 0.01^ 1775 ^ 0 2004
2005 0.56^ 29.22^ 14.67^ 0.12^ 0.55^ 0.38^ 18.87& 0.38^ 0.36^ 0.12^ 0.01^ 0.00^ 29.22^ 0 2005
2006 475.3 ^ 770.4 $ 560.2 $1469 $ 3.86$ 1.56$ 1.22$ 0.91$ 0.76& 5.14& 1.10^ 0.82^ 1469 ^ 0 2006
2007 5.78^ 0.61^ 52.63^ 1.61& 0.73& 0.69& 0.66& 0.62& 0.76& 0.76& 2.21$ 2.83& 52.63^ 0 2007
2008 2.36& 423.2 $ 679.0 $ 173.2 $ 3.14$ 2.56$ 1.37& 0.84& 0.71& 0.60& 0.40^ 162.2 ^ 679.0 ^ 0 2008
2009 91.95^3348 $ 664.7 $ 1.67$ 1.23$ 4.21$ 1.55$ 1.31$ 1.17$ 0.91& 0.72& 0.63^ 3348 ^ 0 2009
2010 281.5 & 0.63& 5.84& 1.61$ 1.59$ 1.24$ 1.42$ 1.31$ 1.47$ 0.76^ 0.30^ 3.25^ 281.5 ^ 0 2010
2011 146.5 ^ 520.3 $ 198.3 $ 5.53$ 5.97$ 2.31$ 1.54$ 1.38$ 1.19$ 1.18$ 1.80& 0.30^ 520.3 ^ 0 2011
2012 245.4 ^ 82.62$ 8.53$ 1.43$ 1.14$ 2.00$ 1.14$ 0.97$ 0.80^ 0.35^ 0.25^ 99.65^ 245.4 ^ 0 2012
2013 2173 $ 100.0 $ 1.13& 27.58& 1.01$ 13.06$ 1.65$ 0.88$ 0.68^ 0.41^ 43.45^ 407.3 ^ 2173 ^ 0 2013
2014 351.4 ^ 171.4 ^ 204.6 ^ 1.29^ 343.3 $ 2.07$ 1.67$ 1.47$ 1.07^ 0.26^ 0.13^ 0.05^ 351.4 ^ 0 2014
2015 23.99^ 14.39^ 185.6 ^ 3.40& 96.20$ 84.94$ 2.02$ 1.14$ 0.78^ 0.17^ 0.06^ 79.70^ 185.6 ^ 0 2015
2016 26.19^ 29.74^ 1.73^ 0.15^ 0.25^ 1.50^ 1.16& 0.73& 0.69^ 0.14^ 0.00^ 152.8 ^ 152.8 ^ 0 2016
2017 251.8 ^ 269.2 $ 9.19& 2.17& 0.55& 0.52& 0.55& 0.57^ 0.18^ 0.04^ 0.00^ 10.85^ 269.2 ^ 0 2017
2018 101.5 ^ 3.45& 0.37^ 0.48^ 0.05^ 54.47^ 0.64& 0.59& 0.48^ 0.02^ 0.00^ 0.00^ 101.5 ^ 0 2018
2019 8.33^ 0.35^ 9.57^ 2.91^ 0.21^ 0.38^ 0.44^ 0.36^ 0.30^ 0.00^ 0.00^ 5.35^ 9.57^ 0 2019
2020 10.51^1582 ^ 12.93^ 0.23^ 0.32^ 0.30^ 0.32^ 0.29^ 0.12^ 0.00^ 33.74^ 260.3 ^ 1582 ^ 0 2020
2021 21.30 ^633.3 & 98.37 &379.4 &263.7 $ 1.240$ 0.942$ 0.671& 0.402^ 0.252^ 0.019^ 0.350^ 633.3 ^ 0 2021
2022 10.97 ^ 3.605^ 4.654^ 0.579^608.5 ^437.3 $ 0.985$ 1.092$ 1.105& 0.471^ 0.098^ 5.288^ 608.5 ^ 0 2022
2023 95.31 ^286.3 & 74.28 & 1.044& 0.493& 1.056& 0.840$ 0.778& 0.510^ 0.047^ 0.013^ 0.058^ 286.3 ^ 0 2023
2024 0.510^ 0.627^144.9 ^ 0.607^ 0.586& 2.328& 1.378$ 1.204$ 0.778^ 0.858^250.1 ^ 0.553^ 250.1 ^ 0 2024
2025 346.8 ^139.0 ^ 4.058^ 0.175^ 0.407^ 0.516& 0.534& 2.121^ 0.553^ 0.033^ 0.000^233.6 ^ 346.8 ^ 0 2025
2026 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 2026
942 Total
Mean [156.7 ][339.4 ][189.5 ][48.54 ] 33.03 ! 28.54 ^ 1.916^ 1.215^ 0.480! [1.667] [5.786]113.3 ! [629.8 ] Mean
Med. [32.14 ][82.70 ][12.93 ] [1.204] 0.497! 0.580^ 0.489^ 0.382^ 0.217! [0.054] [0.000] 0.327! Med.
Max [2173 ][3348 ][1909 ][1469 ] 608.5 ! 463.7 ^ 29.95^ 37.59^ 6.66! [77.23][250.1 ]3877 ! [3877 ] Max
Min [0.00] [0.00] [0.00] [0.00] 0.00! 0.00^ 0.00^ 0.00^ 0.00! [0.00] [0.00] 0.00! [0.00] Min
OK 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 99% 100% 100% OK
Cnt 57 56 57 57 56 56 56 56 56 57 58 58 58 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%
Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Minimum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Days Yr
1968 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0.000] 0.000$ [0.000] 325 1968
1969 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.021$ 0.143$ 0.116$ 0.036$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1969
1970 0.000$ 0.000$ 0.024$ 0.000$ 0.000$ 0.223$ 0.131$ 0.078$ 0.059$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1970
1971 0.000$ 0.124$ 0.059$ 0.068$ 0.068$ 0.390$ 0.293$ 0.212$ 0.089$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1971
1972 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.096$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1972
1973 0.000$ 0.000$ 0.000$ 0.101$ 0.086$ 0.116$ 0.182$ 0.102$ 0.021$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1973
1974 0.430$ 0.194$ [0.110] [0.092] 0.090$ 0.188$ 0.158$ 0.204$ 0.044! 0.000$ 0.000$ 0.000$ [0.000] 16 1974
1975 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.010$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1975
1976 0.496$ 0.046! 0.273$ 0.119$ 0.102$ 0.121$ 0.133$ 0.095$ 0.026$ 0.002$ 0.000$ 0.000$ 0.000! 0 1976
1977 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.553$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1977
1978 0.000$ [0.020] [0.059] 0.004$ 0.000$ 0.028$ 0.069$ 0.086$ 0.022$ 0.000$ 0.000$ 0.000$ [0.000] 11 1978
1979 0.000$ 0.000$ 0.007$ 0.000$ 0.001$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1979
1980 0.000$ 0.015$ 0.000$ 0.000$ 0.000$ 0.000$ 0.075$ 0.006$ 0.000$ 0.000$ 0.000$ 0.000! 0.000! 0 1980
1981 [0.005] [ ] [0.037] 0.000! 0.000! 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ [0.000] 49 1981
1982 0.000$ 0.338$ 0.006$ 0.001$ 0.000$ 0.076$ 0.042$ 0.003$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1982
1983 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1983
1984 0.000$ 0.000$ 0.653$ 0.096$ 0.147$ 0.125$ 0.135$ 0.076$ 0.011$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1984
1985 0.000$ 0.996$ 0.081$ 0.004$ 0.030$ 0.019$ 0.031$ 0.006$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1985
1986 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1986
1987 0.000$ 0.113$ 0.015$ [0.002] [ ] [ ] [ ] [ ] [ ] [0.000] 0.000$ 0.000$ [0.000] 176 1987
1988 0.000$ 0.018$ 0.000$ 0.005$ 0.053$ 0.098$ 0.088$ 0.035$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1988
1989 0.003$ 0.000$ 0.001$ 0.004$ 0.070$ 0.066$ 0.141$ 0.104$ 0.022$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1989
1990 0.000$ 0.000$ 0.008$ 0.000$ 0.000$ 0.000$ 0.001$ 0.053$ 0.004$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1990
1991 0.000$ 0.059$ 0.000$ 0.000$ 0.000$ 0.260$ 0.174$ 0.093$ 0.015$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1991
1992 0.000$ 0.000$ 0.000$ 0.000$ 0.204$ 0.154$ 0.109$ 0.078$ 0.055$ 0.000$ 0.000$ 0.000$ 0.000$ 0 1992
1993 0.000$ 0.433& 0.125^ 0.127^ 0.145^ 0.150^ 0.202^ 0.192^ 0.125^ 0.017^ 0.000^ 0.000^ 0.000^ 0 1993
1994 0.000^ 0.004^ 0.048^ 0.000^ 0.000^ 0.045^ 0.090^ 0.086^ 0.015^ 0.000^ 0.000^ 0.000^ 0.000^ 0 1994
1995 0.000^ 0.000^ 1.925$ 0.192^ 0.161^ 0.192^ 0.273^ 0.210^ 0.135^ 0.029^ 0.000! 0.000! 0.000! 0 1995
1996 0.000! 0.000^ 0.000^ 0.000^ 0.121^ 0.139^ 0.229^ 0.147^ 0.066^ 0.000^ 0.000^ 0.000^ 0.000! 0 1996
1997 0.057^ 5.876$ 0.182^ 0.182^ 0.182^ 0.249^ 0.258^ 0.226^ 0.114^ 0.000^ 0.000^ 0.000^ 0.000^ 0 1997
1998 0.000^ 0.000^ 0.000^ 0.081^ 0.032^ 0.175^ 0.243^ 0.088^ 0.054^ 0.000^ 0.000^ 0.000^ 0.000^ 0 1998
1999 0.000^ 0.019^ 0.338& 0.522& 0.371& 0.365& 0.359& 0.286^ 0.156^ 0.121^ 0.041^ 0.002^ 0.000^ 0 1999
2000 1.056$ 0.973$ 15.09 $ 16.93 $ 1.598$ 0.629$ 0.471& 0.389& 0.280^ 0.145^ 0.078^ 0.039^ 0.039^ 0 2000
2001 0.054^ 0.553$ 0.381& 0.292^ 0.330& 0.422& 0.476& 0.350& 0.251^ 0.168^ 0.000^ 0.000^ 0.000^ 0 2001
2002 0.000^ 0.011^ 0.218^ 0.093^ 0.078^ 0.246^ 0.346& 0.289^ 0.059^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2002
942 Total
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%
Department of Water and Environmental Regulation HYMONTH V128 Output 15/01/2026
Site 708002 Fortescue River - Gregory Gorge Site 708002
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Minimum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Days Yr
2003 0.000^ 0.000^ 0.000^ 0.005^ 0.003^ 0.068^ 0.177^ 0.192^ 0.031^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2003
2004 0.000^ 0.000^ 0.376& 0.218^ 0.213^ 0.199^ 0.197^ 0.235^ 0.168^ 0.023^ 0.004^ 0.000^ 0.000^ 0 2004
2005 0.000^ 0.001^ 0.048^ 0.012^ 0.117^ 0.243^ 0.306& 0.299^ 0.104^ 0.015^ 0.000^ 0.000^ 0.000^ 0 2005
2006 0.000^ 0.700$ 1.264$ 3.839$ 1.558$ 1.222$ 0.905$ 0.613$ 0.443& 0.338& 0.292^ 0.221^ 0.000^ 0 2006
2007 0.215^ 0.197^ 0.252^ 0.579& 0.690& 0.659& 0.619& 0.588& 0.553& 0.553& 0.546$ 1.056& 0.197^ 0 2007
2008 1.228& 1.878$ 2.137$ 2.814$ 1.553$ 1.068$ 0.796& 0.649& 0.574& 0.380& 0.207^ 0.002^ 0.002^ 0 2008
2009 0.065^ 0.607$ 0.754$ 0.762$ 0.840$ 1.068$ 1.092$ 1.080$ 0.746$ 0.540& 0.402& 0.243^ 0.065^ 0 2009
2010 0.302& 0.389& 0.393& 0.600$ 0.620$ 0.962$ 1.020$ 0.923$ 0.693$ 0.187^ 0.038^ 0.029^ 0.029^ 0 2010
2011 0.202^ 1.352$ 1.092$ 0.867$ 1.105$ 1.130$ 1.228$ 1.056$ 0.778$ 0.566$ 0.305& 0.151^ 0.151^ 0 2011
2012 0.143^ 1.352$ 1.142$ 0.822$ 0.822$ 0.923$ 0.858$ 0.693$ 0.240^ 0.121^ 0.048^ 0.038^ 0.038^ 0 2012
2013 0.593$ 0.962$ 0.354& 0.350& 0.635$ 0.796$ 0.813$ 0.553$ 0.270^ 0.121^ 0.053^ 0.032^ 0.032^ 0 2013
2014 0.207^ 0.182^ 0.172^ 0.289^ 0.876$ 1.365$ 1.391$ 0.973$ 0.202^ 0.015^ 0.000^ 0.000^ 0.000^ 0 2014
2015 0.000^ 0.006^ 0.078^ 0.443& 0.553$ 1.168$ 0.867$ 0.708$ 0.032^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2015
2016 0.000^ 0.000^ 0.000^ 0.000^ 0.000^ 0.066^ 0.516& 0.398& 0.002^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2016
2017 0.000^ 0.723$ 0.322& 0.376& 0.380& 0.412& 0.314& 0.158^ 0.003^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2017
2018 0.000^ 0.359& 0.000^ 0.000^ 0.001^ 0.026^ 0.505& 0.433& 0.001^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2018
2019 0.000^ 0.000^ 0.000^ 0.143^ 0.147^ 0.158^ 0.296^ 0.255^ 0.000^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2019
2020 0.000^ 0.000^ 0.184^ 0.131^ 0.089^ 0.235^ 0.189^ 0.100^ 0.000^ 0.000^ 0.000^ 0.001^ 0.000^ 0 2020
2021 0.032^ 0.460& 0.398& 0.314& 0.649$ 0.739$ 0.607$ 0.363& 0.221^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2021
2022 0.000^ 0.002^ 0.000^ 0.172^ 0.207^ 0.796$ 0.723$ 0.566$ 0.384& 0.036^ 0.000^ 0.000^ 0.000^ 0 2022
2023 0.019^ 0.476& 0.493& 0.359& 0.338& 0.393& 0.593$ 0.402& 0.007^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2023
2024 0.000^ 0.002^ 0.000^ 0.273^ 0.322& 0.449& 0.607$ 0.579$ 0.072^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2024
2025 0.002^ 0.091^ 0.000^ 0.133^ 0.141^ 0.367& 0.389& 0.276^ 0.010^ 0.000^ 0.000^ 0.000^ 0.000^ 0 2025
2026 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 2026
942 Total
Mean [0.090] [0.349] [0.511] [0.569] 0.281! 0.339^ 0.355^ 0.292^ 0.128! [0.059] [0.035] 0.031! [0.010] Mean
Med. [0.000] [0.016] [0.048] [0.093] 0.109! 0.190^ 0.236^ 0.207^ 0.034! [0.000] [0.000] 0.000! Med.
Max [1.228] [5.876][15.09 ][16.93 ] 1.598! 1.365^ 1.391^ 1.080^ 0.778! [0.566] [0.546] 1.056! [0.197] Max
Min [0.000] [0.000] [0.000] [0.000] 0.000! 0.000^ 0.000^ 0.000^ 0.000! [0.000] [0.000] 0.000! [0.000] Min
OK 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 99% 100% 100% OK
Cnt 57 56 57 57 56 56 56 56 56 57 58 58 58 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
^ ... Relative Uncertainty +/-50%