weather forecasting (weather and climate)

Isopleth

Map where locations demonstrating the same value of a variable are connected by a line. 4 types; isobar, isodrosotherm, isotach, isotherm

Isodrosotherm

Line of equal dew point

Isotach

Line of equal wind speed

Isotherm

Line of equal temperature

How do you decode the surface pressure if the first digit is 0-4?

Add “10” in front of the first digit and add a decimal point between the last two numbers.

How do you decode surface pressure if the first digit is 5-9?

Add a “9” in front of the first digit and add a decimal point between the last two numbers.

Streamlines

Show wind flow patterns, drawn parallel to wind barbs, start upstream and end where wind direction suddenly shifts

When temp changes during a warm front colder temps are __ and warmer temps are __

Ahead of front, behind front

When temp changes during a cold front colder temps are __ and warmer temps are __

Behind of front, ahead of front

Wind shift during a warm front:

Easterly winds ahead, southerly winds behind

Wind shifts during a cold front:

Southerly winds ahead, westerly winds behind

Upper air maps are created for __ pressure levels

Specific

Isoheights

Line of constant height

Warm air advection (WAA)

Winds blow across isotherms from warm to cold

Cold air advection (CAA)

Winds blow across isotherms from cold to warm

500mb map

Halfway point between surface and tropopause, weather systems generally follow the flow of this system, “steering level”

850mb map

Used to find areas of warm and cold air advection

300/200mb map (300 winter, 200 summer)

Helps identify the jet stream