Warm-Up February 25In a High Pressure System, where is

the greatest pressure located?(The center or the outside)

Center

MYP Unit Question: What should I wear today?

Area of Interaction: Environment

Learner Profile: Communicator

Standard: Understand how the distribution of land and oceans affect climate and weather.

Learning Standard: Today I am learning about weather instruments because they are

used to forecast the weather.

Opening: What would I wear in . . .

Work Session:• Return all graded work• Notes on Instruments• Create Isobar and Isotherm Maps

Closing: Luck of the Draw

What should I wear today in

Temperature 88°Wind Chill (Feels Like) 94°

Relative Humidity 52%

Atmospheric Pressure 29.95”

Wind Speed 17 mph

Wind Direction East

Dew Point 72°

Visibility 6 miles

the Philippines?

Why does it feel like 94˚ if the temp

is 88˚?

The largest Christian country in Asia, but also it is the world's third largest Catholic Nation.

Climate is tropical, with March to May (summer) being the hottest months. The rainy season starts in June and extends through October with strong typhoons possible. The coolest months are from November to February.

Weather Instruments

Weather Vane

Wind Direction

Wind Sock

Anemometer

• The cups on the anemometer would catch the wind and spin.

• Counted the number of times the cup spun in a specific amount of time.

Your eyeballs

Measures air temperature

Thermometer

Barometer• Measures air

pressure. • It tells you whether or not the pressure is

rising or falling. A rising barometer means sunny and dry conditions, while a falling barometer means stormy and wet conditions.

Rain GaugeMeasures the amount of rain that has fallen over a specific time period

• Measures the relative humidity• Two thermometers are used in a sling

psychrometer. • Wet the cloth of one of the thermometers and swing the psychrometer around a few times. • Water evaporates from the cloth, causing the temperatures on that thermometer to be lower than the other.

Sling Psychrometer

Isotherms and Isobars

Drawing IsobarsCaution:• You can’t cross lines• You can’t go in front of lower numbers

Connect the “Dots”

4 1 35 7 4

What information does this map give you about Atlanta?

Atlanta

0s10s20s30s40s50s60s70s80s

Drawing Isotherms