With another 35-degree day on the way for Lismore and the Northern Rivers today and power outages after yesterday's storm affecting our northern villages like Nimbin and The Channon, NSW Ambulance is advising residents to keep cool and hydrated.

Essential Energy has told the Lismore App that some parts of the Lismore LGA are proving difficult to safely access to fix fallen power lines and restore electricity supply.

The situation is the same for Mullumbimby, Ocean Shores and parts of Murwillumbah.

NSW Ambulance says to make sure you keep yourself cool, stay hydrated, check on elderly or vulnerable friends & family, and, if you can find air-conditioned buildings.

Some tips from the NSW Ambulance:

• Stay hydrated - Drink plenty of water and carry a water bottle with you.
• Keep cool - Seek air-conditioned buildings, draw your blinds, use a fan, take cool showers and dress in light and loose clothing made of natural fabrics.
• Avoid the heat - Schedule activities in the coolest part of the day and avoid exercising.
• Check-in on vulnerable people - Hot weather can affect everyone, but some people are at greater risk of heat-related health problems. This includes people aged 65 years and older, babies, young children and people with some medical conditions.
• Never leave children or pets in a vehicle - Leaving children or pets unattended in a car can be fatal. The temperature inside a parked car can double in minutes.

If you’re heading outdoors, always carry a water bottle and take regular breaks in the shade or cool spaces.

Feeling unwell in the heat? Move to a cool place, sip water slowly, and rest. If symptoms like dizziness or confusion worsen, call Triple Zero (000) immediately.

There is the chance of another thunderstorm in the afternoon or early evening.

As was the case yesterday (Thursday), there will be some relief on Saturday when the mercury drops to 28 degrees.