Wednesday, August 18, 2010

Northerlies hammer southeast but deliver Spring to QLD!

QLDers are experiencing a taste of Spring as warmer west to north-westerly winds drive up the mercury to as much as 7 degrees above average in Longreach to 33 degrees. It's Brisbane's turn tomorrow with a forecast maximum of 28 degrees! But the winter warmth will be shortlived with temperatures returning to 22 degrees on Friday. Parts of NSW are also enjoying warmer winter temperatures with Bourke heading for 27 degrees today.

But it's the strength of these winds that will affect the southeastern states most. Severe weather warnings for damaging winds are current for alpine areas of the ACT, Southern Tablelands and Southwest Slopes of NSW above 1200m, while for Victoria it's the Wimmera, Western , Central, North Central and Alpine districts that may be affected. Gusts over 90kmh have already been recorded in Victoria's alpine region- such winds are strong enough to bring down trees and powerlines. The wild winds will be accompanied by another 15cm of fresh snow for the valleys and as much as 50cm for the higher peaks of the ski resorts by the weekend.

Wednesday, August 11, 2010

Brisbane and Hobart soaked, Melbourne and Perth next!

From the moment I walked through The Weather Channel doors at 4am this morning, it hasn't stopped! Eastern QLD was completely drenched overnight, damaging winds and flooding rains are hitting NSW, VIC and TAS today, and much needed winter rains are on the way for Perth!

Let's start with QLD...widespread falls of 50-100mm have been recorded across the coast and adjacent inland with Brisbane picking up 78mm, it's heaviest rain for any day in 6 months and its heaviest August day of rain in at least 10 years. The rain has now moved offshore and, apart from a possible lingering shower or two today, Brisbane and QLD can look forward to dry skies for the rest of the week.

Meanwhile, a low in Bass Strait is driving flooding rains over western VIC and eastern TAS. Falls of 50-100mm are possible over the Otway ranges and eastern TAS, including Hobart. Rain and winds are expected to increase over Melbourne leading into tonight with localised flooding and damaging winds possible. Severe weather warnings and flood watches are in place across many rivers and districts in both states. This surge of rain is particularly interesting for eastern TAS which has experienced a very dry winter so far. Hobart has only picked up 22mm between June-August, when the average winter rain in Hobart is over 150mm!

Perth has also endured a dry winter with practically no rain recorded in August. Thankfully, this is changing today as a cold front approaches the west coast, bringing showers today and soaking rain overnight and into tomorrow. At least 30mm is possible for the city.

Damaging winds are in line for most of VIC, NSW and southern QLD between today and tomorrow. Winds with gusts over 90-100kmh are possible and severe weather warnings have also been issued for this wild weather over the next 24 hours.

Thursday, August 5, 2010

Winter rains fail in Perth

Winter rains have failed so far in Perth with the city only picking up 194mm so far this season. Dry and sunny weather with Spring-like temperatures is expected to continue for another week, so it’s possible that this could end up being Perth’s driest Winter on record. The driest Winter on record for Perth in 2006 saw the city receive only 230mm of rain. Winter rains normally amount to 481mm so as you can see, Perth is struggling.

Meanwhile in the east, La Nina conditions are strengthening. We can’t officially call it a La Nina until we’ve experienced these conditions for a few months, but it’s almost certain that 2010 will be classified as a La Nina year. A La Nina event is typically characterised by above average rainfall across northern and eastern Australia.