Tropical cyclones over southern Africa, with special reference to weather over Zambia

by M. M. Baghare

Publisher: Republic of Zambia, Meteorological Dept. in Lussaka

Written in English
Published: Pages: 29 Downloads: 903
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  • Africa, Southern.,
  • Zambia.,
  • Tropics.


  • Cyclones -- Africa, Southern.,
  • Cyclones -- Zambia.,
  • Cyclones -- Tropics.,
  • Meteorology -- Zambia.

Edition Notes

Statementby M.M. Baghare.
SeriesMeteorological notes. Series A ;, no. 15, Meteorological notes (Zambia. Meteorological Dept.)., no. 15.
LC ClassificationsQC943.5.A435 B33 1978
The Physical Object
Pagination29, [24] leaves of plates :
Number of Pages29
ID Numbers
Open LibraryOL3042961M
LC Control Number82135413

Globally, subtropical circulation in the lower troposphere is characterized by anticyclones over the oceans. Subtropical anticyclones locate over subtropical belts, modulating weather and climate patterns in those regions. The Mascarene High is an anticyclone located over the Southern Indian Ocean and has a vital role in weather and climate variability over Southern Africa. The high temperature region across southern Africa corresponds to the region of low precipitation. Over the tropical southern Africa where high precipitation was observed during DJF /12, the surface temperatures are around 19°–22°C.   The strongest tropical cyclone in at least a decade is expected to make landfall in Mozambique at the end of the week, bringing devastating winds and floods to the central coastline. This is the first in a four part series on the impact of floods in Southern Africa. The recent devastation caused by tropical cyclones in southern Africa underlines the importance of countries to.

In this live Gr 12 Geography show we take a look at Subtropical Anticyclones & Associated Weather Conditions. In this lesson we discuss the three high pressure cells that affect South Africa as well as focus on travelling disturbances associated with anticyclonic circulation. Southern east Africa is prone to some extreme weather events and interannual variability of the hydrological cycle, including tropical cyclones and heavy rainfall events. Most of these events occur during austral summer and are linked to shifts in the intertropical convergence zone, changes in El Niño Southern Oscillation signatures, sea surface temperature and sea level pressure. Tropical Cyclone Idai made landfall on 14 March in the district of Dondo, Sofala province in Mozambique. Initial damage assessments suggest widesrpead destruction and at least 48 deaths. Idai also brought strong winds and flooding to parts of Zimbabwe from around 15 March, where over 30 deaths have been reported and over people are missing. Extratropical cyclone, a type of storm system formed in middle or high latitudes, in regions of large horizontal temperature variations called frontal zones. Extratropical cyclones present a contrast to the more violent cyclones or hurricanes of the tropics, which form in regions of relatively.

  Current Situation At SAST this afternoon, Moderate Tropical Storm “IRINA” was located at S / E within the central part of the Mozambique Channel, just on the west coast of Madagascar, near the town of Maintirano. The eye of the system is somewhat obscured at the moment, but the distinctive spiral banding features, characteristic of such systems, are nevertheless well . The storm is estimated to have killed at least people, destroyed more than , homes and caused , displacements. Six weeks later, cyclone Kenneth battered the northern part of the.   The weather system was likely to remain over open water between Maputo and Richards Bay for the next 24 hours, according to the National Joint Operational Centre.   Another tropical cyclone is expected to make landfall on Mozambique's coast on Thursday, just over a month after a more powerful storm struck the Mozambican port city of Beira further south .

Tropical cyclones over southern Africa, with special reference to weather over Zambia by M. M. Baghare Download PDF EPUB FB2

At least 30 tropical cyclones have affected the Southern African mainland. Three countries in southeastern Africa – Tanzania, Mozambique, and South Africa – border the Indian inland countries also experience the effects of tropical cyclones, including Botswana, Eswatini, Malawi, Namibia, Zambia, and Zimbabwe.

Here's a look at where African tropical cyclones come from in each basin. Southwest Indian Ocean. The southwest Indian Tropical cyclones over southern Africa is bordered by Africa to.

Tropical cyclones in Africa by country‎ (9 C) C Tropical cyclones in Southern Africa; W. List of West Africa hurricanes This page was last edited on 22 Augustat (UTC). Text is available under the Creative Commons Attribution-ShareAlike License.

Southern Africa: Another Strong Tropical Storm Heads for Mozambique and It Could Be Devastating Accuweather Satellite image of a developing tropical cyclone near Madagascar on Tuesday, April Southern Africa • Floods and Cyclones • The bulk of the region is expected to receive normal to below normal rainfall over the remainder of the large part to tropical cyclone Irina.

Many powerful tropical cyclones have made headlines throughoutparticularly in the United States. Although tropical cyclones, or hurricanes, are rare to southern Africa, Jennifer Fitchett, a Senior Lecturer in Physical Geography at the University of the Witwatersrand, believes this may soon change.

Fitchett recently noted a change in the South Indian Ocean – which surrounds South. The Southern African Development Community – Climate Services Centre Tropical cyclones over southern Africa predicted that a tropical storm which has devastated Mozambique, which will migrate inland and make land fall over.

The ZMD said Lusaka, Eastern, Central, Southern and parts of Western Provinces recorded below-normal rainfall from January due to the tropical cyclone ‘Ava.’ According to an agro-meteorological report released by the ZMD, insufficient amounts of soil moisture may cause stress and wilting in maize crop, especially over the southern half.

The National weather services in three southern African countries namely Mozambique, South Africa and Zimbabwe have issued alerts of a tropical cyclone set to hit southern Mozambique late on Wednesday night (15 February ) or early morning on Thursday (16 February ).

The consensus among the meteorological community is that the tropical cyclone named Dineo [ ]. Interpretation of synoptic charts of South Africa with special reference to air movements and interpretation of station models Synoptic Charts Synoptic charts are drawn 4 times a day at Greenwich Mean Time.

We are 2 hours ahead in South Africa. Hence we create synoptic maps at, and This allows for weather. Two tropical lows were detected over southern Africa in each reanalysis on time period, one in Angola and the another in the Mozambique channel.

Larger circles indicate the track location when the T63 filtered vorticity anomaly is larger than 3×10 −5 s −1, defined later as a threshold for strong tropical tropical lows.

The cyclonic. Tropical cyclones can strike year round Understanding the Terminology A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation.

Tropical cyclones rotate counterclockwise in the Northern Hemisphere. They are classified as follows. The statistics of tropical low tracks over southern Africa are presented and compared across three reanalysis products. Findings are compared to the literature of tropical low‐pressure areas elsewhere in the world, where it is found that most tracking statistics compare well but that the tendency of tropical lows to become semistationary over.

A tropical cyclone is the generic term for a nonfrontal synoptic scale low-pressure system over tropical or subtropical waters with organized convection (i.e., thunderstorm activity) and definite cyclonic surface wind circulation (Holland, ).

Severe tropical cyclones, with maximum sustained wind speeds of at least 74 mph, are known as. Despite a • C sea surface temperature increase over the south Indian Ocean since (Reason and Keibel, ; Mavume et al., ), the frequency of tropical cyclone landfalls over south.

These tropical waves frequently take shape over Africa. Advertisement One of the "seedlings" of tropical cyclones in the Atlantic Basin is the tropical. Cyclone Bonita originated from a weak area of disturbed weather observed about km ( mi) to the east of Diego Garcia, in the Chagos Archipelago, on Decem The system was marked by a distinct low-level circulation and curved banding features, and the Joint Typhoon Warning Center (JTWC) promptly began monitoring it.

A hostile upper-air pattern prevented further organization over. Tropical storm activity over South Africa was especially high in the ’s. Tropical depression Caroline and cyclone Eugenie both affected the country in February Thus, many readers will recall that on March 3,the Zambia Meteorological Department (ZMD) issued a warning on the destructive Tropical Cyclone Japhet which hit southern Zambia on March 5.

Progression of the first tropical depression over Southern Africa. The red and orange colours show the position of the depression. The black shaded areas. Cyclone Idai, Cyclone Kenneth, and Southeast African floods timeline March 3 — The tropical disturbance that would become Cyclone Idai develops and begins to strengthen near the coast of Africa.

March 5 – Heavy rains cause severe flooding across Mozambique and Malawi. K. Hansingo, C. Reason, Modelling the atmospheric response over southern Africa to SST forcing in the southeast tropical Atlantic and southwest subtropical Indian Oceans, International Journal of Climatology, /joc, 29, 7, (), ().

Zambia, a country located in southern Africa, is almost entirely covered by a plateau, which tempers the climate, making the temperature generally acceptable for most of the year. In Zambia, the climate is tropical or sub-tropical depending on altitude, with a hot, humid, and rainy season from mid-November to March and a dry season from April to mid-November.

Post Storm Tropical Cyclone Report. NWS Guam Tropical Cyclone AoR. Tropical Cyclone Products we issue. Historical Tropical Cyclones Affecting Guam () Joint Typhoon Warning Center (JTWC) Guam Homeland Security Office of Civil Defense.

WMO: Worldwide Tropical Cyclone Information. Emergency Management Office for CNMI. The climate is tropical along the coast, temperate inland, and arid in the south. The weather is dominated by the southeastern trade winds that originate in the Indian Ocean anticyclone, a center of high atmospheric pressure that seasonally changes its position over the ocean.

Madagascar has two seasons: a warm, wet season from November to. “The Southern African Development Community – Climate Services Centre has predicted that a tropical storm is forming over Mozambique, which will migrate inland and make land fall over eastern Mozambique.

The tropical cyclone is likely to extend to Zambia and affect Luapula, Northern, Central, Southern, Muchinga and parts of Eastern provinces. Southern Africa: Floods and Cyclones Update (as of 16 Jan ) Tropical Cyclone Bansi is currently over the autonomous outer island of the.

The Government of the Republic of Mozambique (GRM) reported that the official count for Tropical Cyclone Kenneth-related deaths remained at 45 people as of May In addition, the GRM reports the number of people in need of assistance from Tropical Cyclone Kenneth has increased to nearlypeople as humanitarian agencies access additional populations affected by the storm.

However. Improved weather conditions have allowed relief actors to deliver assistance, including food, health, and shelter supplies, to populations in areas impacted by Tropical Cyclone Kenneth. In early May, the UN Office for the Southern Africa Tropical Cyclones Fact Sheet #   Increased and more intense extra‐tropical cyclones occur to the southeast of South Africa, favourable for tropical–temperate trough formation.

When the SST poles are reversed in sign, decreased precipitation occurs over southeastern Africa as a result of increased low‐level divergence of low‐level flow and this flow being drier than.

Special weather report issued at 11h00 this Wednesday 27 March High Wave warning for Rodrigues valid until 10h00 on Friday 29 March The intense tropical cyclone JOANINHA is .List of tropical cyclones – Septem 's second hurricane originated as a tropical storm at about 10°N°W and moved northwestward.

The storm rapidly gained strength as it reached hurricane on September 9. The hurricane continued moving northwestward as it bypassed the Cape Verde Islands to the west at Category 1 strength.

The storm later reached Category 2 status. Cyclone Idai has triggered a "massive disaster" in southern Africa affecting hundreds of thousands if not millions of people, the UN has said.