Weather Update: widespread, heavy rain and flash flooding over eastern states, 10 February 2020


Hello again we’ve seen some
extraordinary rainfall along the New South Wales coast over the weekend and
floods have developed in response to that rain. I’m joined by Charlotte one of
our senior flood forecasters today. Thanks Adam and in the area around
Sydney those floods have been the most significant that we’ve seen in around 30
years. That weather system and rain that’s been responsible for those floods is
gradually moving further south, still around the south coast area of New South
Wales, moving into East Gippsland of Victoria and eventually in towards
Northeast Tasmania as well. But we’re not expecting the rainfall totals to be
anything near as heavy as what we’ve seen over the past few days from here on
out. Over the past 24 hours the heaviest rain has been focused around the Central
Coast and Illawarra parts of New South Wales and then heading down towards the
south coast as well, lots of red dots on that rainfall map
there plenty of locations receiving well over 200 millimetres of rain in the past
24 hours and a couple of spots even over 400 millimeters of rain. Some useful rain
further inland as well certainly nothing as heavy as we’ve seen along the coast,
but Charlotte over the past four days the rainfall along the coast has been
much more widespread than what we’ve just seen here. Certainly so from
southeast Queensland all the way along the New South Wales coast, we’ve seen
rainfall totals over the past four days around 400 millimetres and in some
places six to seven hundred millimetres. That’s right, and the highest we’ve seen
in the preliminary figures around 698 millimetres at Robertson in the
Illawarra and over the past 24 hours that Sydney Illawarra area really is a
sea of red in the City of Sydney itself we saw 391 millimeters over the past
four days Charlotte how long would it normally take us to see that sort of
rain in Sydney. So those 4 day rainfall totals we would typically expect to see
around for over a four month period this time of year, well that’s that’s quite
amazing and naturally we did see some flooding develop overnight last night to
the west of Sydney particularly, we still see some spots this afternoon with some
moderate flooding on the board Charlotte take us through a couple of locations we
can look at so if we head into the Hawksbury we take a look at
North Richmond we saw a major flood peak overnight over the weekend on Sunday and
that’s certainly an easing trend as we head on into the week. Nearby we’ve got
the Colo River where at upper Colo we similarly saw a major flood peak on
Sunday evening which is an easing trend through this weekend. So even though
there is still some flooding on those river systems the good news is it is on
its way down and as we mentioned that the worst of the rain certainly over as
it moves further south we do have some flood watches still
current as the system moves further south, where are they? So through parts of
New South Wales eastern parts of Victoria and down through to Northeast
Tasmania we do have a flood watch where we could possibly see flooding develop
over the next one to four days. Now Charlotte that includes those areas
where we’ve got some active fires still going through East Gippsland
and the south coast of New South Wales, the landscaping in those parts is really
vulnerable at the moment, there’s not a lot of vegetation left, how do we see River
catchments respond differently to what they normally would after bushfire? So
fire impacted areas where we see heavy rainfall, we could see some fast
responding catchments and possibly some flash flooding, so we’ll be issuing flood
warnings and flood watches as required and keeping everybody as up to date.
That’s a really important message as the rain does move further south, and
certainly over the next day or two we can see the rain moving into eastern
Victoria today, and then gradually moving through Bass Strait down towards
northeast Tasmania but more widespread over the eastern parts of the country
still with a lot of thunderstorm activity across the East this afternoon
and tomorrow as well and some of those storms are likely to be severe. So please
stay in touch with the bureau on our website app and social media over the
next couple of days for all the latest forecasts and warnings and please follow
all advice for emergency services. you

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