Pierre Montes ask, “what is an invest”. It’s actually a pretty legit question. Sometimes as meteorologist we spout out these random phrases that we think everybody understands but sometimes I understand you may not know what exactly it means. Especially with an invest area, because it has no real meteorological definition.

That is outside of being an area of convection in the tropics. Furthermore, it’s an American thing. Meaning it actually denoted by the National Hurricane Central, Central Pacific Hurricane Center and the Joint Typhoon Warning Center. An invest area is labeled when simply one of these agencies see a tropical disturbance that is interesting and should be investigated further. Thus when labeled there is an increase in data collection and processing on these areas via a number governmental and academic websites.

NRL Monterey and the University of Wisconsin for example. This also helps inject additional data in to numerical guidance which helps us predict them better. The naming system is rather simple as well. Basically they run from 90 to 99 followed by a letter indicating where they are in the world. L indicating the Atlantic, e the eastern pacific, c the central pacific and w the western pacific. Why 90? Well unless something insane happens the nomenclature we use to name storm systems and the invest areas should never overlap. That is having upwards of 90 storms in one season in the basin. Hope that helps answer that question. If you have any questions yourself you write them in the comments below or hit me up at @robertspetawx on twitter or Robert Speta Weather on Facebook.

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