Tuesday, August 3, 2010

Update on inflow/rainfall

We have now had seven months of the year. We have had well above average rainfall, over 400 mm, when the average is around 350 mm. This has given us inflows in the last seven months that are approaching the total inflows that we had last year. Currently, we sit on 42,800 megalitres; last year, we had 43,200 megalitres.

However, we are still well below the average inflow for this time of year, which is 110,000 megalitres.

One other point of interest: we are now climbing above the megalitre per millimetre rate from last year. This is an indication, perhaps, that the ground is getting wetter and some of the damage is healing. But it should be noted that we are still well below the average.

Over the next few months, La Nina is expected to have a strong influence. This means that it is more likely than not for there to be above average rainfall in the Canberra region. So my prediction for lower rainfall than 700 mm for this year may well be challenged. We will see. :)

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