Greensboro, NC -- During hurricane season you will often hear meteorologists talk about 'Invests' when referencing developing tropical systems.
An invest is short for investigation which basically is an area of disturbed weather that is being monitored for tropical development. While this area of disturbed weather possesses the potential for tropical development the labeling of an invest does not correspond to how likely a system is to develop into a tropical depression or tropical storm.
Once a system has been designated as an invest, data collection and processing can be initiated on a number of government and academic platforms. This also launches the running of specialized model guidance.
Invests are kept track of by numbering them 90 to 99 followed by the letter 'L' to designate it's location in the Atlantic Basin. Once invest 99 has been designated the numbering system cycles back through starting at 90 again. An example of this would be 97L.
More information about hurricane terminology and the latest activity in the tropics can be found in the WFMY News 2 Hurricane Resource Guide.
WFMY News 2