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Sunday 18 June 2000

Fog widespread in southern NSW and northern Victoria
The back end of a large high pressure system frequently produces widespread fog in southeastern Australia during autumn and winter. Humidity levels increase as northerlies swing warmer, moister air around the western side of the high, but night time conditions remain stable, skies stay clear, and temperatures drop rapidly to the dew point. However, the calm night time conditions directly under the high are replaced by light winds, sufficient to mix the moisture into fog rather than depositing it as dew or frost. The past few mornings have seen widespread but scattered fogs over NSW and northern Victoria, but this morning a large area of fog covered the NSW Riverina and most of the Murray Valley in Victoria. Though this dissipated by late morning in most places as the sun broke through and warmed the ground, it was thick enough in the Tocumwal area to last through the day.

Today's highest rainfall totals for the 24 hours to 9am

19.0 Mt Read Tad
18.0 Lockhart River Qld
15.2 Waldheim Cradle Valley Tas
14.0 Tewantin Qld

Today's highest & lowest temps

Other extremes

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Records set this day

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Maximum Minimum
32.0 Kalumburu WA
32.0 Jabiru AP NT		 23.0 Gove AP NT
23.0 Coconut Is Qld
3.0 Crackenback NSW -8.7 Charlotte Pass NSW

Greatest variations from normal

Maximum Minimum
+6.0
23.3 Kellerberrin WA
+6.0
25.1 Yeelirrie WA		 +7.4
12.1 Tambo PO Qld
-5.5
9.3 Tocumwal AP NSW		 -5.3
1.3 Donnybrook WA