Common Hazards: Hydrometeorological

HYDROMETEOROLOGICAL HAZARD | Session 1

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Learning Targets

For this session, your learning targets are:

1. I can distinguish and differentiate different hydrometeorological hazards

2. I can recognize signs of impending hydrometeorological hazards

3. I can apply appropriate measures and interventions before, during, and after hydrometeorological hazards.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

HYDROMETEOROLOGICAL

HAZARDS

Definition

A process or phenomenon of atmospheric, hydrological or oceanographic nature that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

• Typhoon​

• Floods

• Storm surge​

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

TYPES OF HYDROMETEOROLOGICAL HAZARDS​

Typhoon

• Local term for tropical cyclone—tropical cyclones formed on the Western North Pacific Ocean are called typhoon.

• Strength is determined by the speed of the maximum sustained winds near the center (30 KPH o > 185KPH) (NDRC).

• Typhoons can bring torrential rainfall, wind driven water, powerful and destructive waves and storm surges.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Typhoon – Western North Pacific Ocean

Hurricane – North Atlantic Ocean

Cyclone – Indian Ocean

• EYE -THIS IS THE CENTER. IT IS THE CALM PART OF THE STORM.

• EYE WALL -THIS PART IS AROUND THE EYE. THIS PART HAS THE STRONGEST WINDS AND RAINS. THE WINDS MAY BLOW 200 MILES PER HOUR.

• RAIN BANDS -THESE ARE THE CLOUDS THAT SPIN.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Parts of a Typhoon

🌀Learn and Practice: Types of Tropical Cyclones

Canvas

After watching the video about the types of tropical cyclones, in our DRRR Canvas, with a single reply answer the discussion board activity (3-2-1 Strategy) below.

​3 - things that I have learned

2 - things that I find interesting 

1 - thing that I want to learn more about

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Floods

• A flood occurs when there is an increase in water level from continuous or heavy rainfall, release of water from dams and overflowing of water systems.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

FLASHFLOOD - caused by heavy rains; appears quickly but disappears quickly as well.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Type of Flood

RIVERINE - when the level of water flowing through rivers increases and goes beyond the average water level or worse.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Type of Flood

ESTUARINE AND COASTAL - occur when seawater encroaches low lying land that is usually still above sea level. Flood in these areas can be a result of storm surges

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Type of Flood

URBAN FLOODING - a result of:

1) saturation of the ground due to too much rainfall and

2) the presence of large areas of impermeable surfaces like concrete pavements and rooftops.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Type of Flood

CATASTROPHIC FLOODING - results from ground failure or major infrastructure failure (e.g., dams).

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Type of Flood

Storm surge

• A storm surge is an abnormal rise of the ocean generated by a weather disturbance such as a typhoon, over and above the predicted high tide mark.

• A tsunami is generated by an earthquake; unlike a storm surge which is generated by a typhoon.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Sign in - Google Accounts

You can open this webpage in a new tab.

Copy link

Open in new tab

HYDROMETEOROLOGICAL HAZARD | Session 2

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Learning Targets

For this session, your learning targets are:

1. I can distinguish and differentiate different hydrometeorological hazards

2. I can recognize signs of impending hydrometeorological hazards

3. I can apply appropriate measures and interventions before, during, and after hydrometeorological hazards.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Signs of impending Typhoons

• The best way to know whether there is an impending typhoon is to check the weather news

• If, for some reason, the news is not accessible, you may check for the following:

  • Presence of overcast

  • Rise in sea level with frequent waves

• Check or use the barometer

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Check the presence of the following clouds

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Signs of impending Typhoon

Cirrus clouds​

Cumulus clouds​

Lenticular clouds​

What we encounter from the news...

Ponder on the ff.:

​

1. ​Is it important to have proper understanding of and access to information regarding typhoons? Why?

2. In what other ways can we make information more understandable and accessible to the people?

Thunderstorms

• Weather disturbance that produces thunder and lightning, aside from wind and rain.

• Thunderstorms occur locally, often as episodes of cyclones, and, in common with squalls, are marked by abrupt variations in pressure, temperature, and wind.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

• ​It is a storm of lightning and thunder usually with rain and gusty winds, sometimes with hail or snow, produced by cumulonimbus clouds.

• Thunder is the rumbling sound that is heard during thunderstorms. It is caused by the fast expansion of gases in the electrical charge of lightning in a thunderstorm.

Signs of impending Thunderstorms

• Presence of cumulonimbus clouds.

(cumulo – heap; nimbus – rain)

• Accompanied by thunder and lightning.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

VIDEO PRESENTATION

1. ​LINK #1: EL NIÑO

2. LINK #2: LA NIÑA

3. LINK #3​: EL NIÑO and LA NIÑA

EL NIÑO

• El Niño is the warming of ocean surface in the central and eastern tropical Pacific Ocean; this creates reduced rainfall over the regions of Indonesia and Philippines.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

LA NIÑA

• La Niña is the cooling of ocean surface in the central and eastern tropical Pacific Ocean; this creates increased rainfall over the regions of Indonesia and Philippines.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

PRACTICE: AREA ​SURVEY (Canvas Activity)​

​Write your answers in our Canvas Course

LEARN & PRACTICE: MEASURES & INTERVENTIONS (Canvas Activity)​

​Write your answers in our Canvas Course

​Watch the following videos:

​Link #1 How to prepare for a Hurricane

​Link #2: How to prepare for a Flood

​

Concept Check (Canvas Activity)

​Write your answers in our Canvas Course

​In a single reply, write the answers to the guide questions in the comments section of this discussion board. Limit your answers to 2-3 sentences per question.

1. How can we identify that there would be impending typhoons and thunderstorms?

2. What are the differences between El Niño, and La Niña?

HYDROMETEOROLOGICAL HAZARD | Session 3

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

Learning Targets

For this session, your learning targets are:

1. I can distinguish and differentiate different hydrometeorological hazards

2. I can recognize signs of impending hydrometeorological hazards

3. I can apply appropriate measures and interventions before, during, and after hydrometeorological hazards.

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

📺Super Typhoon Rai (2021) - Local "Odette"

Write your answers in canvas

Watch the short video of Super Typhoon Rai (2021), and answer the following:

I Like/Dislike: What aspects did you appreciate/dislike about the presented video? Be specific, identify the instances that you liked/disliked.

I Wish: What would you change? Be constructive when pointing out the things that you believe should be implemented/changed/made.

What If: What are your suggestions? Come up with alternative ideas in light of other contexts.​

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023

✍ Exit Ticket and Self-Evaluation: Hydrometeorological Hazards

Answer the Exit Ticket and Self-Evaluation for this module/unit found in our canvas course

DISASTER READINESS AND RISK REDUCTION | TERM 1 | SY 2022-2023