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Anthony Sharwood, 24 Nov 2021, 4:54 AM UTC

Gunnedah awash after heaviest November rain in 71 years

Gunnedah awash after heaviest November rain in 71 years

The large town of Gunnedah (population approx. 10,000) in northern NSW is awash this Wednesday, as the Namoi River surges through town, inundating low-lying areas.

A flood warning for minor to major flooding was issued for the Namoi River this morning and you should keep checking our warnings page here for the latest information.

  • The flooding comes after two days of intense rainfall in the area on Sunday and Monday, which dumped 84.2 mm of rain at Gunnedah Airport on an already saturated landscape.
  • The total for the month at Gunnedah Airport is now 240 mm, which is the record for that particular weather station since it came into use in 2001, and the highest November total in 71 years for any station in the immediate district.
  • Way back in 1950, 259 mm was recorded at Gunnedah Pool, so the local record (for any station) could very feasibly be broken with storms and possible heavy falls on the cards for Thursday and Friday this week.

Meanwhile dramatic images taken by Gunnedah locals show the extent of the Namoi River flooding just outside town, with the river having well and truly broken its banks.

Image: The Namoi in flood just out of town. Source: Chrstiaan Harmse (@c_harmse via Instagram).

Image: Another view of Namoi in flood just out of town. Source: Chrstiaan Harmse (@c_harmse via Instagram).

And this is what it looks like in town right now.

Image: A back street of Gunnedah. Source: @Destanie Clark (@ichoholic via Instangram).

Many parts of New South Wales are currently facing flooding after several centres have recorded their wettest November on record thanks to the combination of climate drivers including La Niña and a (weakly) negative Indian Ocean Dipole.

These climate drivers have helped deliver an abundance of moisture-laden air across NSW over the last few weeks.

Take a look at Wednesday morning's BoM map showing the last seven days' worth of rain in NSW.

Image: Guunnedah is located in the hearty of the large greeny-turquoise section, indicating totals of 50-100 mm. Source: BoM.

But this is far from a single-state event. Flood watches are now in place for parts of NSW, Vic, SA and Qld.

We'll keep you up to date with all the rainfall and flooding news in coming days.

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