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NiMet D-G explains causes of harmattan fluctuation

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Prof. Sani Mashi, Director-General, Nigerian Meteorological Agency (NiMet), says the mixture of harmattan and heat conditions presently being experienced in some parts of Nigeria is caused by oscillation of Inter Tropical Divide (ITD).

 

Mashi, said this in an interview with newsmen in Abuja on Sunday, explained that ITD is the point where the South-westerly air mass and north-easterly air mass meet.

 

He further explained that the climate of Nigeria was being controlled by those two major air masses that were moving along opposite directions.

 

According to him, while the north-easterly travels from Chad, through the Sahara desert into Nigeria through the north eastern direction, south-westerly comes from the ocean through the coastal side.

 

He said “Wherever they meet, that point is a divide that is known as Inter Tropical Divide (ITD).

 

“Already, that oscillation has ceased and it is much towards the southern part of the country, meaning that the much of ITD is already in favour of the south-westerly that is coming from the southern part of Nigeria.

 

“Meaning that the south westerly is pushing the north westerly.

 

“So, that being the case, it means we are now expecting more moist condition than dry condition in the north central part of Nigeria.

 

“That is why we are not experiencing much of harmattan in the north central Nigeria and the temperature has started going down already.

 

“That means a build up to the expectation of rainfall in the northern central Nigeria and that is the situation we have right now.’’

 

Prof.Mashi, said the south westerly air mass from the southern part of the country is moist and usually hotter, while the north easterly air is drier and cooler.

 

He added that while the north easterly air mass brought lower temperature, the south westerly air mass transported hotter and higher temperature into the central region.

 

“Because of that, the higher temperature is leading to more evaporation leading to more chances of condensation and that is why you have such a contradicting situation.

 

“You have haze and at the same time, the temperatures are higher.

 

“The expectation is that when you have haze the temperature should be lower because the north easterly is associated with lower temperature.

 

“South westerly is warmer because it has moisture and it is associated with warm air (ocean current).

 

“You are expecting that you would have higher heat where you are having because the ITD is oscillating and it is moving from one part of the north central to another.

 

“That is why we have these two contrasting situations in one location in most of north central Nigeria.’’

 

Mashi, explained that the harmattan period is already becoming shorter because the south westerly air mass is already overpowering north easterly air mass over central northern Nigeria.

 

The implication of this, according to him, is that we are likely to have early commencement of rain within central northern Nigeria.

 


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Ugo Onwuaso is an ICT enthusiast. He believes technology should be used for general good. He holds a Master of Public Administration (MPA) degree from the Lagos state University. Dear Reader, Your support matters. But we believe that technology makes life more exciting and helps improve the lives of people around Nigeria and indeed the world. That is why, we have devoted our energy to independent reportage of technology and finance and how they affect lives. Our incisive and analytical view of how technology news affects the daily life help individuals and organizations make up their minds. Quality journalism costs money. Today, we're asking that you support us to do more. Kindly support our effort to deliver technology and finance journalism to everyone in the world. Donate as little as N1,000. Bank transfers can be made to: UBA Plc 1017156876 Communication Week Media Ltd

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NCDC Issues Public Advisory on Cerebrospinal Meningitis

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Nigeria Centre for Disease Control and Prevention (NCDC) has issued a Public Health advisory on the spread of Cerebrospinal Meningitis (CSM).

NCDC Issues Public Advisory on Cerebrospinal Meningitis

It said that the caution is particularly for states within the African Meningitis belt.

In a statement by the Corporate Communications Division of NCDC urged all Nigerians to remain vigilant and adopt preventive measures.

The statement said: “As Nigeria continues through the peak dry season months, the Nigeria Centre for Disease Control and Prevention (NCDC) alerts the public to the ongoing risk of Cerebrospinal Meningitis (CSM), particularly in states within the African meningitis belt.

“Cerebrospinal meningitis occurs more frequently between December and April, when dry, dusty conditions, overcrowding, and poor ventilation increase the risk of transmission.

“The NCDC urges all Nigerians to remain vigilant and adopt preventive measures. Surveillance and response activities remain ongoing nationwide, and laboratory testing is being conducted at the state level while national laboratory capacity is being strengthened.

It explained that Cerebrospinal meningitis is a serious infection of the protective membranes covering the brain and spinal cord.

According to NCDC the affliction is most commonly caused by bacteria, particularly Neisseria meningitidis.

“Bacterial meningitis can progress rapidly and may be fatal within hours if untreated.

“However, early diagnosis and prompt antibiotic treatment significantly improve survival and reduce complications. CSM spreads through respiratory droplets during close contact, especially in overcrowded or poorly ventilated environments.”

It said that symptoms to watch out for include sudden high fever, severe headache, and neck stiffness.

It said other symptoms may include: nausea or vomiting, sensitivity to light, confusion or altered consciousness and seizures.

For In infants and young children, NCDC said the symptoms could bulging soft spot on the head.

The Centre said that early recognition and treatment can save lives.


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Report finds the Number of Trojan Banker Attacks on Smartphones Increased by 56% in 2025

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According to a Kaspersky report “Mobile malware evolution,” the number of Trojan banker attacks on Android smartphones increased by 56% in 2025 compared to the previous year*.

This type of malware is designed to steal user credentials for online banking, e-payment services and credit card systems. Cybercriminals commonly distribute Trojan bankers through messaging apps, as well as through malicious webpages.

The number of new Trojan banker installation packages for Android (unique APK files) also increased sharply, reaching 255,090 packages – a 271% increase over 2024. This may indicate that these tools generate substantial profit for cybercriminals.

Kaspersky experts believe threat actors will continue both to expand delivery channels and develop new Trojan variants trying to evade detection by security solutions. Among all detected Trojan bankers, the leading families were Mamont and Creduz.

“Although Trojan bankers for smartphones are the fastest-growing type of malware, we also observed another important trend: preinstalled backdoors such as Triada and Keenadu appeared more frequently compared to previous years. People purchase completely new, but infected, Android devices and may be unaware of the threat.

Once integrated into the firmware fully functional preinstalled backdoors provide attackers with unlimited control over the victims’ smartphones and tablets. As a result, all information on infected devices can be compromised.

It’s quite difficult to remove such malware. If the device is infected, we recommend users check for firmware updates. After the update, run a scan of the device with a security solution again to make sure newly installed firmware is not infected,” comments Anton Kivva, malware analyst team lead at Kaspersky.

 


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FG Can Now Track, Prosecute Visa Overstayers – Interior Minister

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Federal Government has said it now has the capacity to identify and apprehend foreigners who overstay their visas in the country.

FG Can Now Track, Prosecute Visa Overstayers – Interior Minister

Minister of Interior, Olubunmi Tunji-Ojo

The Minister of Interior, Olubunmi Tunji-Ojo, disclosed this on Thursday in Abuja during the 2026 Sectoral Performance Review Retreat of the Federal Ministry of Interior.

Tunji-Ojo said the government now possesses comprehensive data that enables authorities to track individuals who have entered the country over the past decade and determine those who have failed to comply with their visa conditions.

According to him, the development followed the establishment of an Integrated Operations Centre and a Network Operations Centre by the Nigeria Immigration Service.

The minister, however, said the FG will go after foreigners who have overstayed their visas, adding that outside of the country, Nigerians are not being spared.

He said, “In NIS, I know we are doing a lot already. As of today, we have been able to build our Integrated Operations Centre and the Network Operations Centre, which we never had before.

“With that, we can access, in the last 10 years, everybody who has entered, where you came from, everything, we have all your records, we have everything, we know the exact people who have overstayed in our country, and we will go after them, with due respect, because, outside of Nigeria, they go after the irregular immigrants and we think we have to protect the sanctity of our borders,” the minister stated.”

The minister also stressed the need for reforms across agencies under the ministry, including the Nigeria Security and Civil Defence Corps, to ensure services are delivered transparently and without corruption.

Tunji-Ojo said the goal of government institutions should be to protect citizens, particularly the most vulnerable in society.

NSCDC provides protection in an organised and corruption-free manner, where the son of a nobody will have the same opportunity as the son of anybody in government.

“If you are a businessman or there is a genuine threat to your life, you should be able to access protection without going through the minister, the Commandant General, or anyone else. It is only then that we can truly say we have a service that works for Nigerians.

“Nigeria should not be about selective service delivery. The essence of government is to protect everyone, with greater emphasis on protecting the weakest in society, ” he said.

Speaking on correctional reforms, he argued that a system where individuals repeatedly return to custody reflects a failure of rehabilitation.

“Anybody who goes in there must be reformed and transformed,” he said, adding that the objective was to reduce cases of repeat offences to the barest minimum.

In her remarks, the Permanent Secretary of the ministry, Magdalene Ajani, emphasised the importance of accountability in leadership.

She said leadership was about “devotion, promises, performance, and impact,” noting that the ministry’s agencies play critical roles that affect the daily lives of Nigerians and therefore require transparency and effective service delivery.

The move to go after foreigners who overstay their visas comes amid renewed efforts by the Federal Government to strengthen border management and enforce immigration regulations across the country.

This definitely would allow immigration authorities to track the movement of travellers and identify individuals who remain in Nigeria beyond the duration permitted by their visas.


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