Monday, 31 March 2014

Month ends with more rain in Sydney, still dry in Jyväskylä

Once again a large storm hit Sydney yesterday evening. The worst affected areas of the city were from Bankstown extending north between Parramatta and Penrith and up to Hornsby. There were two particularly dangerous storm cells. One was situated in the Blue Mountains and moved north through Katoomba, while the other moved north just west of Parramatta.

The warning below was issued by the Bureau as the storm developed.
"The Bureau of Meteorology warns that, at 8:15pm, severe thunderstorms were detected on the weather radar near Parramatta, Katoomba and Richmond. These thunderstorms are moving towards the north. They are forecast to affect Hornsby, Blackheath and Glenorie by 8:45pm and Bilpin, Berowra and Wisemans Ferry by 9:15pm.
Large hailstones and heavy rainfall that may lead to flash flooding are likely.
32mm of rain was reported in 30 minutes to 7:35pm at North Richmond. 20mm was reported in 10 minutes to 8:10pm at Erskine Park. Golf ball sized hail reported from St Clair."
The radar image below shows the severity and size of the storm. The two main cells are clearly visible.

Terry Hills 128km rain radar image at 8:06pm AEST on March 30 2014
Source: Bureau of Meteorology (screenshot unedited from original image)

Sydney Airport and the city didn't receive a large amount of rain from the storm; 2.6mm and 3.6mm were recorded at the Airport and Observatory Hill respectively. Badgerys Creek in the west though had a recording of 39.8mm. Another 0.2mm fell this morning at the Airport, making it the 11th consecutive day of rain being recorded.

Jyväskylä continued its dry run with a pleasant weekend. Saturday got to 12.1C, the month's highest temperature. Highlighting that this is quite unusual is the fact that the highest temperature recorded in April last year was only just above that mark at 12.6C. Yesterday was much cooler though topping only 4.6C and today barely climbed above 2C. The dry spell endured its 8th consecutive day today, something not too common in Finland.

The next few days look to be a little cool like today, but the dry weather will continue before warming back up to 8C by Saturday.

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