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15 Questions on Fronts and Weather

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Presentation on theme: "15 Questions on Fronts and Weather"— Presentation transcript:

1 15 Questions on Fronts and Weather
Eric Angat Teacher

2 Cold region because of its nearness to the North pole.
Polar Vortex Cold & dry Cold & dry snow hurricane hurricane hurricane hurricane hurricane hurricane hurricane hurricane Warm & humid Warm or hot region because of its nearness to the equator. Warm & humid

3 Comparing Storms and Tornadoes
Starts above warm water. Starts on land Both form where air masses meet Weakens when air dissipates. Weakens when it reach land.

4 1. What is the direction of spin of low pressure area or cyclone in the northern hemisphere?
Counterclockwise circulation around low pressure areas in the Northern Hemisphere.

5 2. In the northern hemisphere, what are the directions of air in cyclone and anti-cyclone?
Low pressure system High pressure system Air rises in low pressure, making a counterclockwise spiral ( cyclone). Descending in high pressure flows in a clockwise spiral ( counter cyclone).

6 Tropical cyclone can be hurricanes, typhoons, and cyclones.
3. What are the three types of tropical cyclones? Tropical cyclone can be hurricanes, typhoons, and cyclones. HURRICANE? CYCLONE? TYPHOON?: They're all the same, officially tropical cyclones. But they just use distinctive terms for a storm in different parts of the world. Hurricane is used in the Atlantic, Caribbean Sea, central and northeast Pacific. They are typhoons in the northwest Pacific. In the Bay of Bengal and the Arabia Sea, they are called cyclones. Tropical cyclone is used in the southwest India Ocean; in the southwestern Pacific and southeastern India Ocean they are severe tropical cyclones.

7 4. Where do hurricanes form?
Hurricanes form in the Atlantic, Caribbean Sea, Gulf of Mexico, Central and Northeast Pacific. East Pacific Ocean Atlantic Ocean Tropical cyclones are named depending on where they occur. Only tropical cyclones that form over the Atlantic Ocean or eastern Pacific Ocean are called "hurricanes." HURRICANE? CYCLONE? TYPHOON?: They're all the same, officially tropical cyclones. But they just use distinctive terms for a storm in different parts of the world. Hurricane is used in the Atlantic, Caribbean Sea, central and northeast Pacific. They are typhoons in the northwest Pacific. In the Bay of Bengal and the Arabia Sea, they are called cyclones. Tropical cyclone is used in the southwest India Ocean; in the southwestern Pacific and southeastern India Ocean they are severe tropical cyclones.

8 Typhoons form in the Northwest Pacific ocean.
5. Where do typhoons form? Typhoons form in the Northwest Pacific ocean. West Pacific Ocean East Pacific Ocean Atlantic Ocean Southern Atlantic

9 HURRICANE. CYCLONE. TYPHOON
HURRICANE? CYCLONE? TYPHOON?: They're all the same, officially tropical cyclones. But they just use distinctive terms for a storm in different parts of the world. Hurricane is used in the Atlantic, Caribbean Sea, central and northeast Pacific. They are typhoons in the northwest Pacific. In the Bay of Bengal and the Arabia Sea, they are called cyclones. Tropical cyclone is used in the southwest India Ocean; in the southwestern Pacific and southeastern India Ocean they are severe tropical cyclones.

10 6. The Pacific Ocean Gyre brings all the trash in center of the currents. Where are the two garbage patches located in the Pacific? Near California, USA Near Kuroshi, Japan A gyre in oceanography is any large system of rotating ocean currents, particularly those involved with large wind movements. Gyres are caused by the Coriolis Effect.

11 Weather fronts are where air masses meet.
7. What are weather fronts? Draw the symbol for cold front, warm front, occluded front, and stationary front. Weather fronts are where air masses meet.

12 Causes abrupt weather changes. Strong winds and severe thunderstorms.
8. What kind of weather is caused by a cold front? Cold air moves towards warm air Causes abrupt weather changes. Strong winds and severe thunderstorms.

13 9. How does a cold front form?
Warm air advances and replaces cold air. Cold air advances, forcing warm air to rise. Warm and cold air masses meet and mix. Warm and cold air masses have no relative advancement.

14 10. What kind of weather is caused by a stationary front?
Stationary front moves little and rain or snow continues over a long period of time. This commonly results to flooding.

15 11. What kind of weather is caused by a warm front?
Warm air moves towards cold air If the warm air is dry, scattered clouds form. If the warm air is humid, widespread snow, showers or light rain falls. If the warm air is dry, scattered clouds form. If the warm air is humid, widespread snow, showers or light rain falls. Since warm fronts are slower than cold fronts, it may be rainy or foggy for several days.

16

17 12. What kind of weather is caused by a
occluded front? In most cases, storms begin to weaken after a frontal occlusion occurs.

18 13. How are hurricanes and tornadoes related to air masses?
They form within air masses. They form where air masses meet. They form where air pressure is the same. They form where air temperatures are the same

19 14. What is the difference between Typhoons and Hurricanes?

20 15. What category of tropical cyclone was typhoon Haiyan?
Tropical cyclone categories: Category Wind Speed (mph) Damage at Landfall Storm Surge (feet) 1 74-95 Minimal 4-5 2 96-110 Moderate 6-8 3 Extensive 9-12 4 Extreme 13-18 5 Over 155 Catastrophic 19+ Classified as a super tropical cyclone , typhoon Haiyan has made landfall in the Philippines, bringing top sustained winds that were measured at more than 195 miles per hour before landfall. The measurement reflects the winds sustained by the storm for one minute; the storm was also producing gusts, abrupt rush of wind, of 230 mph. West Pacific Ocean


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