i think you are being misdirected here. haarp may be an early prototype for weather manipulation, but i doubt that is the main tool used now. the sun is the biggest player in our weather, in particular the heat it spews all over the earth in terms of solar radiation. the magnetic field reflects most of this radiation and normally some of it shows up as aurora borealis way up at the poles where the field curves back into earth.  if you have a device that can weaken or modify the magnetic field, you can allow more of that reflected radiation through, causing certain areas of the earth to heat up such as the waters in gulf of mexico. radiate that shit and you have a hurricane. radiate another part of the earth near it you can create pressure or vacuums to have some level of control over its direction. side effects may include the northern lights not being so far up north for a while. you'd probably need a really huge magnet to do it and a huge infrastructure that would need a good front to it, being such a huge project. cern and fermilab fit this profile- huge infrastructure projects with big magnets which on paper only conduct obscure experiments very few of the tax payers funding it really understand.  this is purely antidotal, but it feels like the solar temperature from a normal day of being in the sun is much hotter than it use to be. that doesn't include the air around it, just the sun striking the skin.
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