The premier of Australia's most populous state on Thursday declared a state of emergency as fires continue to rage across New South Wales amid a record-breaking heatwave.The announcement by Premier Gladys Berejiklian came as a new record-high nationwide average temperature was observed by the Bureau of Meteorology.Preliminary data from the weather bureau showed maximum temperatures across the country on Wednesday having reached 41.9 C due to a hot air mass continues to move across the country.The previous record of 40.9 was set only a day earlier. Tuesday's high exceeded the previous record…READ FULL ARTICLE