Record-breaking heat 

If you think it has been warm then you are right - Launceston has just sizzled its way through a record hot start to autumn and one of the hottest spells ever.

The maximum temperatures for the six days to yesterday have each exceeded 30 degrees, easily beating the previous hottest run for March of three days in 2008.

Before that, the consecutive runs of days above 30 degrees have all been in summer and almost all three-day spells - in January 1988 and 1995, February 1995, February 2000, January 2007, February 2007, January 2009 (four days) and February 2010. 

These figure were all measured at Ti Tree Bend.

Yesterday's maximum was 30.2 degrees at 4pm. Saturday had a maximum of 32.2 degrees; Friday was 31.6 degrees; Thursday was 33 degrees; Wednesday was 31.2 degrees; and Tuesday was 30.4.

Today's forecast is for a maximum of 29 degrees, but Matthew Thomas of the weather bureau said there was a reasonable chance that today would also reach 30 degrees.

Today's forecast is for a partly cloudy day with light winds becoming north to north-westerly 15 to 20 km/h in the early afternoon then becoming light in the late evening.

Mr Thomas said the hot weather was caused by a high-pressure system to the east of Tasmania that produced a northerly airflow.

The maximum forecast for tomorrow  is 31 degrees, followed by 29 degrees on Wednesday, 27 degrees on Thursday and Friday, 22 degrees on Saturday and 24 degrees on Sunday.

Mr Thomas said a cold front would cross the state on Wednesday, bringing cooler weather.

He provided figures from 1980 to now, measured at Ti Tree Bend. He said readings were taken at the old Launceston pump station until 1959, when it closed and Ti Tree Bend took over.

He said during summers between 1884 and 1959, there were four episodes of five consecutive days of maximums above 30 degrees and three episodes of six consecutive days. There were no episodes during autumn.

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