Down Under Heat + KC Rain
While we’re going through our winter here in the Northern hemisphere, in the southern hemisphere they are dealing with summer and a somewhat unusual occurrence has been going on in the Land Down Under.
Typically it’s pretty darn hot there, but even folks in Australia are saying to themselves that this is a bit unprecedented. It’s been searing heat that they’ve talked about lately and it will continue for awhile. How hot is it? Well it was so hot that the government there had to create a new heat scale for their temperature maps that they’ve been using so that some areas can reflect heat that gets to 130°. Keep in mind that they use centigrade down there for temps, so that equates to 50-54° C. Their all-time record is 50.7 C (123° F), set in January 1960 at Oodnadatta in the state of South Australia so the heat there is rivaling or could rival their all-time records. The nation as a whole experienced their all-time hottest day this past Monday when conditions from all the reporting stations were averaged together. Wildfires have been burning out of control in some areas as well. At least 6 of the 1st 7 days of the year there are among the top 20 in terms of heat in the past century. From the folks at the Bureau Of Meteorology in Australia.
The current heatwave event commenced with a build up of extreme heat in the
southwest of Western Australia from 25-30 December 2012 as a high in the Bight and
a trough near the west coast directed hot easterly winds over the area. Particularly hot
conditions were observed on the 30th, with Cape Naturaliste observing 37.7 °C, its
hottest December day in 56 years of record.
From 31 December the high pressure system began to shift eastward, bringing well
above average temperatures across southern WA between the 30 December and 2
January. Temperatures reached 47.7 °C at Eyre on the 2nd its hottest day in 24 years
of record, while Eucla recorded 48.2 °C on the 3rd, its hottest day since records began
By the 4 January the high pressure system had moved off eastern Australia, with
northerly winds directing very hot air into southeast Australia, while southerly winds
eased temperatures in WA. Hobart experienced a minimum temperature of 23.4 °C on
the 4th (its hottest January night on record), followed by a maximum of 41.8 °C (its
hottest maximum temperature on record for any month in 130 years of records) and
the highest temperature observed anywhere in southern Tasmania.
The area of intense heat moved northeast on the 5th as the high pressure system, now
centred over the Tasman Sea, and a low pressure trough directed hot northerly winds
into the Riverina and western NSW. Areas affected recorded temperatures well in
excess of 40 °C, with Marree in SA recording 48.4 °C, Yarrawonga in VIC recording
45.7 °C and Hay in NSW recording 47.7 °C, breaking its annual daytime temperature
Last nights GFS model shows some nasty heat continuing for awhile as well. It may back off across the SE part of the country but it will come back. Here is an image from Weatherbell showing the forecast for the 21st.
What does a weather map look like on the other side of the world? Take a look.
As you look at the map above, you have to remember that everything is reversed there with the circulation in the atmosphere. Cold fronts come in the from the south, warm fronts from the north. The South Pole is to their south and the cold fronts bring in the cooler weather from the South Pole. Areas of high Pressure have a anti-clockwise circulation while Low Pressure have clockwise circulations. So it’s a reversal of circulations compared to our neck of the woods.
Why the reversal “Down Under”? It’s because of something called the Coriolus force. Read all about it!
OK som much for the Down Under weather forecast…how about KC? Well there is nothing really to change concerning my thoughts from yesterday. Temperatures today will soar into the mid 50s and today and Friday will be the warmest days this week. Friday could be warmer than today though as we await the cold front that will change our weather sometime Saturday AM. I sent out a tweet @fox4wx yesterday mentioning that the record for Friday is 65° set in 1960…something that needs to be watched.
Rain is still expected to move in sometime WED evening and linger into early THU before we get dry slotted and the best rains move away. Some drizzle/showers/breaks in the clouds are possible on THU. I still think amounts will be near or under 1/2″ for many with heavier totals west and east of KC with the bulk of the rain coming in the 1st 6 hours of the event starting. The newest NAM is a bit more bullish, so I guess there is some upside potential to this by a bit.
From Saturday afternoon (which may have a 20° drop during the daytime hours), through Wednesday, colder air will be the rule. Sunday’s highs should be in the 20s with highs around 30° on Monday and then 30-35° after that. I thought I’d show you the day 10 forecast off the EURO model this AM, and at least from the model, the brunt of the cold air will start to get deflected off towards the east of here next weekend.
It should also be noted that if this is close, the NE part of the country, especially New England will be nasty cold! The GFS is more or less having the same ideas.
So yes to the colder air for us, at this point though, not looking that prolonged, and with a lack of snowpack out there, even the cold KC air will moderate and become more seasonable as the next week commences.
For you snowlovers out there, even the GFS which is always good for a fantasy snowstorm is showing nothing to interests me…although it is showing the January Thaw sequel starting sometime towards the 21st-22nd of the month.
That’s it for today, have a great Tuesday.