Another cold and foggy morning to come in NSWRob Sharpe, Monday May 27, 2013 - 15:31 EST
This morning was cold and foggy through large sections of New South Wales and is likely to be cold again tonight.
Albury has been one of the coldest places this week with four days in a row dropping below 2 degrees. This is the first time this has happened in May in seven years. This morning was one of the foggiest too, with visibility as low as 50 metres at 4am.
In the state's north, Inverell, Glen Innes and Armidale all dropped near freezing with their coldest mornings since September. Frost formed on the ground across much of the North West Slopes and Plains and Northern Tablelands.
Fog stuck around into the mid morning in Gundagai and Griffith with visibility as low as 50 metres and 200 metres respectively. Visibility stayed well below normal until after 9am.
The reason for the cold, foggy and frosty mornings is that a high pressure ridge is allowing winds to become light at night with clear skies overhead. This combination allows heat to rise from the surface, leaving cold and moist air.
Tomorrow morning the high pressure ridge will still be in place allowing temperatures to plummet again. From Wednesday cloud will increase in southern NSW, while the air mass will warm in the north, meaning that temperatures won't be quite as cold as recently.
The next opportunity for cold and frosty mornings across large portions of the state won't arrive until next week after the next cold front arrives on the weekend.
© Weatherzone 2013
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