Transcript 5. Wind-speed maps

Forecasting Weather Maps
Present a weather map to the
class and explain how it forecasts
the weather.
1. Satellite Maps
How do Satellite’s collect data?
• Taking photos of clouds
• Radiometers to measure
infrared radiation emitted
by clouds
• Computer enhancement
of an infrared satellite
picture.
• http://www.usatoday.com/
weather/wsatwork.htm
Satellite Map Questions to Answer
• What do satellite images show?
• Why is this information important?
• How do we get satellite images? How do
satellites travel?
• What can meteorologists learn by the
shade of the clouds on a satellite image?
2. Radar Maps
How Does Radar collect data?
• Sending out a beam of energy
then measuring how much of
that beam is reflected back and
the time it takes.
• Doppler radar includes rain,
snow, sleet and even insects.
• Radar images are color-coded
to indicate precipitation
intensity.
• http://www.usatoday.com/weath
er/wearadar.htm
Radar Map Questions to Answer
• What does radar show?
• How do you use the map key on a radar
map?
• How do we get radar images?
• What are some of the limitations of radar
maps?
3. Precipitation maps
How do precipitation maps collect
data?
• When cloud particles
become too heavy to
remain suspended in the
air, they fall to the earth
as precipitation.
• Precipitation occurs in a
variety of forms; hail, rain,
freezing rain, sleet or
snow.
• http://ww2010.atmos.uiuc
.edu/%28Gh%29/guides/
mtr/cld/prcp/home.rxml
Precipitation Map Questions to
Answer.
• What is precipitation?
• What are some examples of precipitation?
• Define the different types of precipitation
on the map.
• What causes different types of
precipitation?
4. Temperature Maps
How do temperature maps collect
data?
• A thermometer
actually measures
the average kinetic
energy of the
various gas
molecules that make
up the air around it
• http://www.usatoday
.com/weather/whatte
mp.htm
Temperature Maps Questions to
Answer.
• What is temperature? (For the clearest
definition, see the “Weather terms” chart in
the background article.)
• What are the two most important factors in
temperature?
• Why is it usually cooler at night?
• Why does temperature change during the
seasons?
5. Wind-speed maps
How do Wind-speed maps collect
data?
• Winds begin with
differences in air
pressures.
• Pressure that's higher
at one place than
another sets up a force
pushing from the high
toward the low
pressure.
• http://www.usatoday.co
m/weather/wpress.htm
Wind-speed maps questions to
answer.
• Explain the main cause of winds.
• Why are some winds stronger than
others?
• How does wind affect the weather?
• How are winds named?
6. Front maps
How do Front maps collect data?
• Radar image with a
surface map
showing the
locations of areas of
high and low air
pressure
• http://www.usatoday.c
om/weather/fronts/lat
est-frontssystems.htm
Front maps questions to answer
• What is a low-pressure system? What is a
high-pressure system?
• What kind of weather does pressure
system typically bring?
• What is a cold front? What is a warm
front? What types of weather does each
typically bring?
• Explain how the map key shows each of
the terms above.
7. Alert Map
How do alert maps work?
• The Severe Weather
Alerts map depicts
currently active severe
weather watches and
warnings.
• http://www.weather.com/c
ommon/help/maps/maps_
severe_alerts.html
• http://www.accuweather.c
om/maps-severe.asp
Alert maps questions to answer.
• What types of severe weather alerts does this
map show?
• Explain what types of severe weather and in
what areas on the map.
• What is the purpose of this map and why is it
important?
• How do we get alert map images? How do
Meteorologists forecast what type of severe
weather will form and in what areas?
8. Earthquake Report Map
How does earthquake report maps
collect data?
• Magnitude and
Intensity
• http://earthquake.usg
s.gov/learn/faq/?categ
oryID=5
• http://earthquake.usg
s.gov/earthquakes/rec
enteqsus/
Earthquake Report Maps
Questions to Answer
• Why are squares used on the
Earthquakes?
• Why do magnitude and location of
Earthquakes change on the map?
• Why do so many earthquakes occur at a
depth of 10km?
• Why are there so many earthquakes in
California? What causes the earthquakes
there?