Heavy rainfall wets coast
A SLOW moving high-pressure system producing south-easterly winds has led to Yamba receiving its average April rainfall in the first six days of the month.
Yamba received almost 160mm of rain in the first six days of April, but the showers have failed to penetrate inland to Grafton, with the Jacaranda City only getting 35.4mm of precipitation.
A Bureau of Meteorology spokesperson based at Coffs Harbour said rainfall had been confined to the coast due to the south-east and easterly winds produced by the high-pressure ridge.
“All the moist air off the ocean is being pushed in by the winds,” the spokesperson said.
The spokesperson said the weather pattern experienced at the beginning of April was normal, but it had lingered due to the high-pressure system being stationary for a few days.
“The stretch of coast between Coffs Harbour and Ballina has had the heaviest falls,” the spokesperson said.
Yamba still has to cop a lot more rain for the rest of the month to get anywhere near the wettest April on record.
This was recorded in 1988 when 629.4mm filled the Pilot Hill gauge.
The deluge coincided with April's flood of the Clarence River, which peaked at 6.78 metres on Grafton's Prince St gauge.
The rainfall recorded so far this month at Yamba is more than 40mm less than the 24-hour record for the town.
199.6mm of rain bucketed down on April 7, 1962.
April 2, 1989, was Grafton's wettest day with 134.6mm of rain falling.
Weatherzone is predicting the chance of showers or a storm for Yamba and Grafton today.
Mostly sunny conditions are predicted for the Clarence Valley on the weekend, with more showers forecast for late Tuesday and Wednesday.