Weather+Patterns

=Weather Patterns=

By the end of this Chapter, you will be able to READ and give a WEATHER REPORT from a WEATHER MAP like this!!!
= = =FLASHCARD LIST!= = =

=Air Masses and Fronts= media type="custom" key="25600000"

What does each bring? What about when you combine them??

 * Continental (from land) brings dry air
 * Maritime (from the sea) brings moist air= possibilities for precipitation
 * Tropical (from areas around the equator) brings warm air
 * Polar (from the Poles) brings cold air

Air Masses Mindmap:


=Fronts Animations Click here to see an animation of the four main fronts.=

__**BONUS ASSIGNMENT- worth 15 points on any Quiz. or 5 points on a Test...**__

 * -MAKE your own MIND MAP for FRONTS. See info below to put into your mindmap.(CLICK ON THE LINK FOR MIND MAP IN BLUE)
 * When you are done save it and print it and Turn it in to me! Make sure it is thorough. Partial points for partial info.
 * Also PRINT out a weather map from Weather.com --be sure you click on Maps--> classic maps in order to find the national fronts weather map.
 * Manually label each front in the map, Circle the Highs and Lows and label their alternate names. Draw Arrows to show how wind is flowing from the Highs to the Lows. Remember how each rotates in the Northern Hemisphere.
 * (click maps--> classic maps)

Front Symbols


=__ Fronts Diagrams: __=

Often produce Thin Clouds= STRATUS types of clouds.


=__OCCLUDED FRONT:__ What does it mean to "Occlude"?=

Warm air is being pushed high into the atmosphere and this lasts for DAYS!!!

***The Cold Front is actually Taking over the Warm Front.


=__STATIONARY FRONT:__ WHY IS IT STATIONARY?=

==Because Neither Air Mass can overpower the other one, so they sit. This brings DAYS of rain. Eventually one front win and will progress forward -- it will then turn into THAT front.==

__ Pressure Symbols: Cyclones vs Anticyclones __
Imagine the Earth if it didn't rotate! Check out how airplanes are affected by the Coriolis effect. The Coriolis effect causes winds and air masses to move differently in the Northern Hemisphere than in the Southern Hemisphere. Let's Look at a live image of the Earth's Winds
 * Reviewing Winds: **

Ewan McGregor Video in Africa: Which way does the water flow/winds blow in each Hemisphere? media type="custom" key="25600742" media type="youtube" key="mXaad0rsV38" width="560" height="315"

** Which is the Cyclone and Which is the Anticyclone?


=__The Low Pressure -->____Cyclone. (Counterclockwise inward)__= =In this sense, a "Cyclone" is not referring to a Tornado, even though it is the very same concept on a much much smaller scale. The rotation inward makes the Low Pressure the Cyclone.=

=__The High Pressure-->____Anticyclone (Clockwise and outward)__= =Just the opposite of the Cyclone. Pushing everything away and...= =Travel the same way our global winds blow in the Northern Hemisphere-- Clockwise!=

** Don't let it Blow your minds too much, but it is opposite in the Southern Hemisphere :)

** Putting it all together: ** This grad student does a nice job explaining all the keywords in this section.
Click Here. =

=LET'S LOOK AT TODAYS WINDS IN THE U.S. AND COMPARE TO THE US WEATHER MAP...= =[|US Wind Map]=

[|US National Weather Map]

= =__Storms__=

=Remind yourself: Cyclones are spinning center of __ pressure?= =//**Which way does it spin in the Northern Hemisphere**//**?**=

Tornado Diagram:** What kind of cloud? What is coming down from it at the front of the storm?



[[image:Tornado pic.jpg width="327" height="489"]][[image:tornado safety diagram.jpg width="283" height="218"]]


=__Punta Gorda Water Spout:__= = = =__Hurricane Diagram:__= =What kind of Pressure is at the Eye of the Hurricane?= =What is the name of the "flood of water" Hurricanes bring to shore?=

[[image:Hurricane Txtbk.JPG width="560" height="347"]]
A: low pressure (hence the vaccum inward); Storm surge

=View of a Hurricane from Space. The Aircraft you see is an Unmanned Aircraft used to research Hurricanes.=


 * Can you see the eye?
 * === Which way is it rotating? Would this be in the Northern or Southern Hemisphere? Think about it... ===



=According to this chart, what speed changes a Tropical Storm into a Hurricane? Check out the Category 5 Wind speed.... != ≥157 mph, ≥252 km/h || 130–156 mph, 209–251 km/h || 111–129 mph, 178–208 km/h || 96–110 mph, 154–177 km/h || 74–95 mph, 119–153 km/h || storm || 18–32 m/s, 35–63 knots 39–73 mph, 63–118 km/h || depression || <17 m/s, <34 knots <38 mph, <62 km/h ||
 * ~ **Saffir–Simpson hurricane wind scale** ||
 * ~ Category ||~ Wind speeds ||
 * ~ Five || ≥70 [|m/s], ≥137 [|knots]
 * ~ Four || 58–70 m/s, 113–136 knots
 * ~ Three || 50–58 m/s, 96–112 knots
 * ~ Two || 43–49 m/s, 83–95 knots
 * ~ One || 33–42 m/s, 64–82 knots
 * ~ Additional classifications ||
 * ~ Tropical
 * ~ Tropical

=Lightning: Opposites attract...= As molecules bump into one another, they create ions (which are positively and negatively charged particles) Lightning occurs when they reconnect and balance each other out again. Notice the 3 different Lightning paths.

= = =Which do you experience first: Lightning or Thunder? Why?=

the speed of light = 299, 792, 458 m / s speed of sound at sea level = 340.29 m / s * Light is almost a million times faster than sound!!

__ How to Calculate the distance of a storm: __

This will give you # miles away from the storm.
=Floods-- Review:We have discussed this in past chapters.=

3. What's the difference between a flood watch and a flood warning?

 * ====What does TADD stand for? ====

If you can answer these questions, you are good :) Otherwise, see 17.3 and below for answers:


=Weather Predictions=

=Red Sky at Night Sailor's Delight = =Red Sky in the Morning, Sailor's Take Warning = =Let's discuss what this could mean! =

<span style="color: #333333; font-family: arial,helvetica,sans-serif;">Click Here
This is a great resource once again for this section. Use it for your Project! Weatherwizkids.com

What do you see in this Map?? List everything!
What do the squiggly lines represent-- they look like contour lines but they are not... What kind of pressure should be around the hurricane? High or Low?

A: Isobars--- connect points of equal pressure (in millibars or inches) A: Low pressure around the hurricane b/c it is a cyclone (low pressure)

= A __Barometer__ measures Pressure: here's how... = =Atmospheric pressure pushes down on the water in the bowl, which pushes the fluid up the narrow column. We measure how high up the column it goes.=

=More pressure--> HIgher up the column= ==

What it will look like in your Local Newspaper:


=Weather Symbol: According to your key on P. 587, what can you tell me about this weather symbol?=