I would assume High and Low. As in, those air pressure diagrams labelled hi and lo. This is just a guess though.
H is an abbreviation for High, and L is an abbreviation for Low.
The L's are areas of low air pressure. The H's are areas of high air pressure.
The letter "H" on a weather map indicates the center location of a high-pressure system on US maps. Likewise, "L" marks the center of a low-pressure system.
H means high pressure and L, low pressure.
It means low pressure and low pressure means that wherever the L is there will be stormy weather.
An "L" inside a circle.
an area with low air pressure
h high l low
The letter "H" on a weather map indicates the center location of a high-pressure system on US maps. Likewise, "L" marks the center of a low-pressure system.
On the periodic table of elements, the symbol "H" stands for Hydrogen.
H stands for high such as heat and that is the definition edit by 2797jake: I believe it means a high pressure area and L for a low pressure area. On weather maps the H stands for high-pressure and the L stands for low-pressure.
H means high pressure and L, low pressure.
H means high pressure and L, low pressure.
L stans for low such as low heat or low tempiture Usually low pressure.
The "L" on a weather map stands for low pressure.
Areas of High and Low pressure.
What does this symbol indicate on a weather map? low pressure
Longitude
It means low pressure and low pressure means that wherever the L is there will be stormy weather.