1. A brief guide on clouds types, cloud observing, and time.

2. Have you ever looked at clouds and wondered if they had names?
Luke Howard did over 200 years ago.
He decided that clouds could be classified into three main categories.
He used Latin to name the clouds.

3. Three main cloud types Cirrus (Latin for Curl)
means hair and describes wispy looking clouds. This term is also used to describe high level clouds
Cumulus (Latin for heap)
means pile and describes heaped, lumpy clouds
Stratus (Latin for layer)
means layer and describes clouds that form in sheets and do not have any unique features

4. (Wispy, Horse tail) Cirrus
Stratus
(Layered, Flat)
Cumulus
(Cotton Ball)

5. You’ve learned the basic types of clouds…let’s get go on to deluxe clouds.
Nimbus (Latin for Rain)
use this term only when a cloud actually produces precipitation
Alto
describes mid-level clouds
Pictures from

6. Let’s combine names. Cirrocumulus
Can best be described as a high cloud that resembles fish scales

7. (Wispy, Horse tail) Cirrus
Cirrocumulus (Fish Scale)
Stratus
(Layered, Flat)
Cumulus
(Cotton Ball)

8. Let’s combine names. Stratocumulus
Best described as a cloud accident or puffy bottoms

9. Stratus Stratocumulus Cumulus
(Wispy, Horse tail) Cirrus
Cirrocumulus (Fish Scale)
Stratus
(Layered, Flat)
Stratocumulus
(Puffy bottoms, cloud accident)
Cumulus
(Cotton Ball)

10. Let’s combine names. Nimbostratus
Looks like a stratus cloud but it is producing precipitation

11. Stratus Cumulus Stratocumulus Nimbostratus
(Wispy, Horse tail) Cirrus
Cirrocumulus (Fish Scale)
Stratus
(Layered, Flat)
Cumulus
(Cotton Ball)
Stratocumulus
(Puffy bottoms, cloud accident)
Nimbostratus
(low blanket with lots of rain)

12. Let’s combine names. Altocumulus Mid-level cloud
Described as flocks of sheep or streets of clouds
Altostratus
Mid-level cloud
Light gray layer
Light behind the clouds
Pictures from

13. Stratus Cumulus Stratocumulus Nimbostratus
(Wispy, Horse tail) Cirrus
Cirrocumulus (Fish Scale)
Altostratus
(Light grey, light behind clouds)
Altocumulus
(Streets of clouds,
flock of sheep)
Stratus
(Layered, Flat)
Cumulus
(Cotton Ball)
Stratocumulus
(Puffy bottoms, cloud accident)
Nimbostratus
(low blanket with lots of rain)

14. Let’s combine names. Cirrostratus High-level cloud Thin veil of clouds
Produces a sun or moon halo

15. Cumulus Stratus Stratocumulus Nimbostratus
(Wispy, Horse tail) Cirrus
Cirrostratus
(Thin, veil,sun/moon halo)
Cirrocumulus (Fish Scale)
Altostratus
(Light grey, light behind clouds)
Altocumulus
(Streets of clouds, flock of sheep)
Cumulus
(Cotton Ball)
Stratus
(Layered, Flat)
Stratocumulus
(Puffy bottoms, cloud accident)
Nimbostratus
(low blanket with lots of rain)

16. Let’s combine names. Cumulonimbus Thunderclouds Storm makers
Produce lightening and thunder

17. Cumulus Stratus Stratocumulus Nimbostratus Cumulonimbus
(Wispy, Horse tail) Cirrus
Cirrostratus
(Thin, veil,sun/moon halo)
Cirrocumulus (Fish Scale)
Altostratus
(Light grey, light behind clouds)
Altocumulus
(Streets of clouds, flock of sheep)
Cumulus
(Cotton Ball)
Stratus
(Layered, Flat)
Stratocumulus
(Puffy bottoms, cloud accident)
Nimbostratus
(low blanket with lots of rain)
Cumulonimbus
(Thunderstorm clouds)

18. Man-made clouds Short lived Persistent Persistent Spreading Contrails
Short for condensation trails.
Made by airplanes
3 types
Short lived
Persistent
Persistent
Spreading
Pictures from

19. Stratus Cumulus Nimbostratus Cumulonimbus
(Wispy, Horse tail) Cirrus
Cirrostratus
(Thin, veil,sun/moon halo)
Cirrocumulus (Fish Scale)
Altocumulus
(Streets of clouds, flock of sheep)
Altostratus
(Light grey, light behind clouds)
Stratus
(Layered, Flat)
Cumulus
(Cotton Ball)
Stratocumulus
(Puffy bottoms, cloud accident)
Nimbostratus
(low blanket with lots of rain)
Cumulonimbus
(Thunderstorm clouds)
Contrails
Short-lived
Persistent
Persistent Spreading

20. Cloud Cover 100 Imagine this picture represents a certain number of
Imagine
this
picture
represents
a certain
number of
clouds in
the sky ! 1 2 3 4 5 6 7 8 9 10
Tell students that you will be removing some clouds from this picture. Since we are working with 100 clouds we can now say that we are removing a certain percentage of clouds.
100

21. Now Guess! How Many ? Be ready with an answer in 5 seconds !
How Many ? 1 2 3 4 5 6 7 8 9 10
Be ready with an answer in 5 seconds !
Ask them to guess put move on to next slide in 5 seconds. Reason for this is that the satellite doesn’t stay over head for very long…as a matter a fact it orbits the Earth once every 90 minutes. That’s fast! Also, clouds don’t stay still for you either.

22. What is your answer ? Print Large !
Write your guess down your white board and hold it up high.
Let students have a few seconds to write down their answer and re-explain what they are quessing.
Print Large !

23. LET’S OBSERVE!
Let’s make an observation on what we see on this beautiful day!
What cloud types are present?
What’s the percentage of cloud cover?
You can hand out observation forms and have the students do this picture as their first trial observation. They may have different opinions but stress that the results that will be sent to NASA will be the most popular answer(s) chosen as a class.
How much light penetrates the clouds?

24. Time Terms Local Standard Time
The time established for a region by law, or general use - it's the time you see on a correctly set clock, if you're not in daylight savings time (summer)

25. Time Terms 24 hour Time or Military Time
In military time, the hours are numbered from 00 to 23.
Under this system, midnight is 00, 1 a.m. is 01, 1 p.m. is 13, and so on.
Try it: 2:30 pm
An event occurs on Wednesday at 0001 PST. This translates to one minute past midnight PST on Wednesday morning.
6:11 a.m. is the same as 0611 (or 06:11) military time.
13:17:42 military time is the same as forty-two seconds past 1:17 in the afternoon.

26. Time Terms Universal Time or What time is it in Greenwich, England
Standard time at longitude = 0 (the longitude line which goes through Greenwich, England) which is used as a standard around the world to assist in synchronizing data collection.

27. Current Universal Time (UT): 21:04
Time Terms
Universal Time Offset and Conversion
Current Universal Time (UT): 21:04
Write down current local time: ___h ___m
2. Add 4 hours ____h ____ m (EDT)
3. Convert to 24 hour clock: ______