At Belongil Creek a rain gauge registered 75 mm in a single hour as slow-moving storms swept the Northern Rivers district, a raw measure of the flash flooding byron bay that struck coastal communities. That one-hour tally sat inside a broader burst of heavy rain and thunderstorms that produced large totals along the coast.
Belongil Creek and Coopers Shoot: gauges recording more than 100 mm in three hours
Coopers Shoot and the Belongil Creek gauges each recorded more than 100 mm across a three-hour window during the morning storms, while Ballina collected 86 mm in the three hours up to 12: 15 pm AEDT (9: 15 pm ET). Those concentrated totals meant local creeks and low-lying streets received sudden inflows of water, with the Belongil Creek hour peak standing out as an acute pulse of rainfall.
Flash Flooding Byron Bay and the severe thunderstorm warning
Flash flooding touched some areas including Byron Bay as heavy showers and thunderstorms moved onshore, prompting a severe thunderstorm warning that remained in force at 2: 30 pm AEDT (11: 30 pm ET). In the same episode, the gauge at Belongil Creek also recorded the 75 mm one-hour burst, a figure that underscores why flash flooding byron bay was recorded in parts of the Northern Rivers.
Ballina, Upper Springbrook and the spread into southeast Queensland
Storms were not limited to northeast New South Wales. Ballina’s three-hour total and an Upper Springbrook reading of 29 mm in one hour around lunchtime were part of a pattern in which heavy showers and thunderstorms spread into southeast Queensland. A separate severe thunderstorm warning was issued for parts of southeast Queensland shortly after 1: 00 pm AEST (11: 00 pm ET), and forecasters said the most intense rain would focus on southeast Queensland through the afternoon and night.
For now, conditions were expected to ease in northeast New South Wales as the rain and storms moved north. Drier weather was forecast to return to southeast Queensland and northeast New South Wales from the weekend as the low pressure trough moved further north, offering a clear next milestone after the deluge measured at Belongil Creek and elsewhere.
