Generic hot weather photo.
Generic hot weather photo. Contributed

It's hot, damn hot!

UPDATE 4.30PM: Weatherzone has called it folks: today was the hottest day of the year.

If you felt hot, you weren't the only one as the temperature hit 40C earlier this afternoon before cooling off slightly later in the day.

Thunderstorms have begun to develop to the south-west of Grafton, with the Bureau of Meteorology issuing a severe thunderstorm warning which is likely to produce damaging winds and large hailstones in the warning area over the next several hours.

The State Emergency Service advises that people should: 
* Move your car under cover or away from trees. 
* Secure or put away loose items around your house, yard and balcony. 
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences. 
* Report fallen power lines to either Ausgrid on 131 388, or Endeavour Energy on 131 003 or Essential Energy on 132 080, as shown on your power bill. 
* Unplug computers and appliances. 
* Avoid using the phone during the storm. 
* Stay indoors away from windows, and keep children and pets indoors as well. 

UPDATE 2PM: To quote the late, great Robin Williams in the movie Good Morning, Vietnam, it's hot, damn hot.

Perhaps not hot enough to cook things in your shorts but sweltering all the same.

At the Grafton Agriculture Research Station at 2pm, it had reached 38C, with the apparent temperature at 39.8C. The Grafton airport temperature at the same time was 37.6C, but feeling like 39.5C.

The coastal breeze was keeping it down to 27.6C at Yamba.

The Bureau of Meteorology rain radar shows small areas of potential thunderstorms developing to the south-west of the Clarence Valley, near the Nymboida area, and moving in a north-easterly direction.

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AS the summer scorchers start to set in, residents of the Clarence Valley should be prepared for what could be the hottest day of the year.

According to Weatherzone, the hottest recorded temperature in Grafton this year was 39.5 in February, and with the mercury predicted to reach 40 in Grafton that record could be broken.

The forecast for the rest of today in Grafton is for a 50% chance of showers later in the day, with the chance of a thunderstorm this afternoon.

Already as the thermometer has hit 30 in Grafton, NSW Health has warned that extreme heat can have an impact on people's health, and recommends everyone feeling the heat to drink plenty of water, keep cool and take care of others who might be severely affected, such as the young and elderly.

Yamba is expected to reach 32 today, which is under its highest recorded temperature this year of 35.9 which was set last month.



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