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Image source: http://weather.unisys.com/upper_air/ua_nhem_850.html
As the heat cranks up across the West and seasonal reaction is taking place with the building of the Western ridge, which we haven’t seen so far this summer as the core of heat as been centered across the southern plains, we finally see a major heat wave brewing from Tucson to Boise this week…
Across the Northern Hemisphere there are 4-major heat cores one over the southwest of North America, 2) over North Africa, 3) over Middle East and 4) over the Asian subcontinent with of course the blistering and deadly Indian heat wave. This is reaction to the season and I did expect that at some time or another (likely mid July) that major ridging would form as we climb towards the hottest time of year across key source region for heat, always watch where it’s is abnormally dry and id bet that’s where your major heat will be, vicversa for wet areas. Europe has cooled off with the United Kingdom under a more unsettled low pressure dominant pattern but watch as the heat builds across the eastern portion of Europe where the heat core expands west off the Middle Eastern desert region, the heat there won’t weaken but merely expand…. Death Valley has topped 121, but with heights building into the atmosphere, time of year etc, I expect highs rising throughout the week and Death Valley may eye 128 for a peak temperature for summer 2009, could Phoenix eye 118? That’s the hottest since the turn of the millenium there. Las Vegas back in 2005 matched their all-time record of 117, I don’t think they will get that hot, at best I think 114 but maximum heights I don’t think will center themselves across NW AZ, S NV like they did in 2005. Max pressures will sit over Arizona and New Mexico…. This heat will be as a result of mere expansion of what’s already blistered the southern plains, will they cool off or will heights be strong enough to support continued extrekme heat across TX and OK? I think it may cool slightly, perhaps 90s rather than 100s, but this heat is expanding as it heats and intensifies, not a case of it leaving the southern plains.
I shall discuss the heat across Northern Hemisphere later on as I have visitors arriving soon and don’t have the time to talk on this further right now, but I shall go into greater detail later on what I see happening these days and where I think we’re going with the building of major heat in key regions, for now the cool has strunk but that was going to happen, it was slow to do so and that may be very importent to remember. Stay Tuned.
Thanks for reading.
– Mark





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