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Friday, 31 December 2021

Saturday, 11 May 2019

Tropical Cyclone Kenneth Situation Update 2

The number of confirmed fatalities from Tropical Cyclone Kenneth has increased to 50. This includes 43 fatalities in Mozambique (41 in Cabo Delgado and 2 in Nampula Province) and 7 in Comoros. 

In addition:

  • 276 have been injured - 94 in Mozambique and 182 in Comoros
  • 45,400 houses have been impacted in Mozambique, of which 27,203 have been damaged and 18,179 have been destroyed.
  • 11,4000 houses have been destroyed in Comoros, of which 4,482 have been destroyed completely. 
  • 19,300 people were displaced in Comoros.
  • An estimated 185,000 people are in need of immediate assistance.
  • 3,500 people are still living in 11 shelters in Mozambique.
  • 109 cases of cholera have been reported in Mozambique
  • 100 water tanks have been destroyed in Comoros.
  • 6 health facilities have been damaged in Comoros.
  • 19 health facilities have been damaged or destroyed in Mozambique.
  • 55,500 hectares of crop have been affected in Mozambique.

Figures from UN OCHA.

Links to older blog entries on Tropical Cyclone Kenneth:


Tropical Cyclone Fani


Below are videos and images showing the destruction caused by Tropical Cyclone Fani in India and Bangladesh.

Satellite image of Tropical Cyclone Fani (Source: NASA)

Rainfall data shown by NASA's Global Precipitation Measure (GPM) satellite (Source: NASA)

3D image of rainfall (Source: NASA)

Before and after images of lights going out in Bubaneswar City, Odisha, after Cyclone Fani made landfall. 3.5 million households have been left without electricity. (NASA Earth Observatory)

Before and after images of lights going out in Cuttack, Odisha after Cyclone Fani made landfall. 3.5 million households have been left without electricity. (Source: NASA Earth Observatory)







   

 

 

                                         
(Source: Reuters)






Saturday, 27 April 2019

Cyclone Idai Situation Update

It has been over a month since Tropical Cyclone Idai caused devastation in south east Africa.

Idai made landfall in Beira City, Sofala Province, Mozambique on 14 and 15 March. It is the worst tropical cyclone to hit Africa and the southern hemisphere. 

Four countries including Madagascar, Mozambique, Zimbabwe and Malawi were affected. The system formed on 4 March, was upgraded to a Tropical Cyclone on 10 March and intensified to an Intense Tropical Cyclone with a maximum sustained wind speed of 194 km/h (121 mph). This is equivalent to a Category 3 hurricane on the Saffir-Simpson Scale.


Damaging wind, torrential rainfall and storm surge led to widespread flooding and catastrophic destruction. Thousands were trapped on rooftops and trees awaiting rescue. 1,400 people were rescued in Mozambique alone. Flood water and damaged transport infrastructure left communities cut off. Extensive damage was also caused by landslides. 

Mozambique was the hardest hit with 1.85 million affected and 603 confirmed fatalities. 

As of 26 April:
  • 997 fatalities have been confirmed so far
  • >2,381 injured
  • > 3 million have been affected
  • >177,796 remain displaced
  • 3.7 million people are in need of assistance
  • 1.9 million children are in need of assistance

The infographics below show an update on the situation.





Damage and needs assessments continue and figures are likely to rise. Relief efforts are also ongoing.

16 countries deployed assets to support the relief effort. A summary of this can be found in the figure below.

Countries who deployed assets to support aid effort (Source: OCHA)

Responding organisations in Mozambique (Source: OCHA) 
You can find the full version here.

Responding organisations in Zimbabwe (Source: OCHA) 
You can find the full version here.

  • You can find previous infographics of Cyclone Idai here.
  • If you would like more detailed and up to date information from aid agencies responding to Idai, visit Reliefweb

Thursday, 25 April 2019

Cyclone Kenneth Situation Update 1

Intense Tropical Cyclone Kenneth has made landfall in northern Mozambique this evening.

Earlier this morning, Kenneth rapidly intensified with maximum sustained wind speeds of 115 knots (213 km/h or 132 mph). This is equivalent to a Category 4 hurricane on the Saffir-Simpson Scale. 

The maximum sustained wind speeds recorded is 125 knots (231 km/h or 144 mph).

3 fatalities have been reported so far in Comoros Islands. The damage caused to the islands by the cyclone is currently unknown. 

The maximum sustained wind speed when it made landfall was 120 knots (222 km/h or 138 mph) and maximum gusts were 145 knots (268 km/h or 167 mph). 

Kenneth has now started to weaken and is moving at 7 knots. The current maximum sustained wind speed is 75 knots (139 km/h or 86 mph) and maximum gusts were 90 knots (167 km/h or 104 mph). This is equivalent to a Category 1 hurricane on the Saffir-Simpson Scale.

According to GDAC, Mozambique can expect maximum storm surge height of 1.3 metre. 

Over 30,000 people have been evacuated in northern Mozambique according to the Mozambique's National Institute of Disaster Management. Schools have been closed and flights between Maputo and Pemba cancelled. Residents in the Mtwara region of southern Tanzania were also asked to evacuate in preparation. 

The cyclone moved further south than forecast.

Although Tropical Cyclone Kenneth has started to weaken, the risk of torrential rainfall, damaging wind, storm surge, flooding and landslides remain. 



24 April (Source: NASA)

 Satellite image of Tropical Cyclone Kenneth making landfall (Source: JTWC)

Satellite image of Tropical Cyclone Kenneth making weakening after making landfall (Source: JTWC)

Cyclone Warning from the JTWC earlier this evening (Source: JTWC)

Update and most current cyclone warning from the JTWC this evening (Source: JTWC)

Tropical Cyclone Kenneth update

Tropical Cyclone Kenneth has intensified into a Cat 4 storm with maximum wind speeds of 213 km/h. 

Tropical Cyclone Kenneth

Tropical Cyclone Kenneth formed on 23 April north of Madagascar and east of Aldabra Atoll. The tropical depression intensified to a tropical storm on the same day before being upgraded to a tropical cyclone.

Kenneth is forecast to make landfall over northern Comoros islands on 24 April, before making landfall in northern Mozambique and southern Tanzania on 25 April. 

According to the Joint Typhoon Warning Center, the tropical cyclone is forecast to reach maximum wind speeds of 110 knots (204 km/h), which is equivalent to a Category 3 hurricane on the Saffir-Simpson Scale. Tropical Cyclone Kenneth is forecast to be a Category 2 and Category 1 storm when it impacts Mozambique and Tanzania.

Northern Mozambique and Southern Tanzania can expect significant rainfall, increasing  risk of both fluvial and pluvial flooding and landslides. Damaging winds and storm surge are also expected to affect Mozambique.

Once it makes landfall, Kenneth is forecast to weaken and dissipate rapidly.

Regions likely to be affected in southern Tanzania include: Mtwara, Lindi and Ruvuma. Cabo Delgado Province in Mozambique will be in the path of the tropical cyclone.

You can find the most up to date track map and warnings of Tropical Cyclone Kenneth on the Joint Typhoon Warning Center and the Global Disaster Alert and Coordination System (GDACs) websites.

Those at risk should be prepared.

Below are a few tips be prepared:
  • Tune into reliable and official weather warnings and advisories. Make sure you monitor and keep up to date with the latest information. Forecasts and situations can change.
  • Follow advice from official government sources and expertise in the field. Remember, at times like these, rumours can be dangerous.
  • Be aware of your risk and prepare. Are you at risk from flooding, landslides, storm surge or destruction from high wind speeds? 
  • Prepare yourself and your family. Simple steps such as creating a family disaster plan, including where to go when asked to evacuate and who your essential contacts, are can save lives. 
  • Know how to shut off utilities including gas, electricity and water.
  • Create a grab bag containing essential items such as medicines, clothes, money and cards, mobile phone chargers, essential documents (passports, property and insurance), etc. 
  • Be ready to evacuate. If you are asked to evacuate by officials, do not ignore their advice! Be aware of where the community evacuation centres are located. 
  • If you do not feel safe and are in the path of the cyclone, seek alternative shelter. 
  • Have you taken your pets and livestock welfare into consideration? Make sure you plan ahead to keep them safe. 
  • Do not put yourself and others at risk!
Further warnings and updates will follow.


Monday, 18 February 2019

Bukoba, Tanzania Waterspout

On 3 February, a waterspout formed over Lake Victoria off the shore of Bukoba. This is the first waterspout to have been witnessed in Bukoba.

Here are a few quick facts about waterspouts:
  • Waterspouts are similar to tornadoes but form over a water body.
  • They are usually weaker than tornadoes, therefore making them less dangerous.
  • Waterspouts move slowly.
  • There are two categories of waterspouts: tornadic waterspouts and fair weather (or non-tornadic) waterspouts. 
  • Tornadic waterspouts have the same characteristics as a land tornado and are essentially tornadoes which form over water or tornadoes which travel from land to water. These are associated with severe thunderstorms.
  • Fair weather waterspouts are not associated with severe thunderstorms and form in light wind conditions, under developing cumulus clouds. 
  • Fair weather waterspouts form in the opposite directions to tornadoes i.e. they form on the surface and move upwards.
  • The waterspout witnessed in Bukoba was non-tornadic.
  • Waterspouts dissipate rapidly and have a short life cycle.
  • Waterspouts can move onshore posing a risk to lives and property, but they do not travel far inland due to rapid dissipation.
  • Even when on water, they pose a risk, so always maintain your distance!


(Photographer unknown)


(Photographer: Fazeleabass Datoo)

(Photographer: Fazeleabass Datoo)

(Photographer: Fazeleabass Datoo)

(Photographer unknown)

(Original source of video unknown)

(Original source of video unknown)

(Original source of video unknown)

References:

  • National Weather Service (NOAA)