Past Week’s Weather 16.8.09
|
Aug 2009 |
Rain 9 am |
Evap. |
Soil @20cm Temp.&(Moist) |
Gust Knots |
Bright Sun Hours |
Cloud 3pm |
|
Mon 10th |
Nil |
2.8 mm |
n/a |
12 |
7.5 |
3Sc |
|
Tues 11th |
Nil |
2.0 mm |
n/a |
12 |
8.3 |
2Ac |
|
Wed 12th |
Nil |
3.2 mm |
n/a |
24 |
7.3 |
4Ns,3Ac |
|
Thurs 13th |
5.4 mm |
1.0 mm |
n/a |
15 |
8.0 |
nil |
|
Fri 14th |
0.8 mm |
0.2 mm |
n/a |
13 |
7.5 |
nil |
|
Sat 15th |
Nil |
3.2 mm |
n/a |
11 |
8.0 |
nil |
|
Sun 16th |
Nil |
n/a |
14 |
8.3 |
nil |
Please go to “This Month” page for more data
Despite the fact we had three thunderstorms this week the amount of precipitation was minimal with only 6.2 mm recorded in rain gauges. Past records show that the month of August is a month of extremes. It is likely to be very wet or very dry. In 2007 it was very wet with 533 mm recorded for the month. Last year on the other hand was very dry with only 3.2 mm. It looks as if the current month is going into the record books as another ‘dry’ month. So far this month we have seen very little wintry weather with temperatures well above average.
|
|
OOUTLOOK ~ Unsettled – winds increasing.
El Niño slowly consolidating in the Pacific
Atmospheric indicators are increasingly showing patterns typical of a developing El Niño event. These indicators are driven by warm conditions in the tropical Pacific Ocean. If these warm conditions persist, as forecast by leading climate models, 2009 will be considered an El Niño year.
The Southern Oscillation Index (SOI) has fallen over the past two weeks, and is now near zero. Persistent negative values are a feature of El Niño events.
The last month has seen below average rainfall across much of eastern Australia with particularly dry conditions through Queensland. El Niño periods are usually (but not always) associated with below normal rainfall in the second half of the year across large parts of southern and inland eastern Australia.