Accra has dry periods in January, February and December. Mali. The country's perennially hot climate means that it's always warm enough to don bikinis and board-shorts, and the humidity of the rainy season doesn't matter so much when you're by the sea (or the hotel swimming pool). The weather in Accra, Sekondi-Takoradi, Kumasi, Tema, Mole National Park, Akosombo and Tamale is OK but just acceptable. Low pressure centers of 1005 hPa and 999 hPa were observed, respectively, between the borders of Mauritania and Mali as well as central Chad as shown from Figure 10(b). Floodis a major hazard and source of human vulnerability which can lead to high mortality rate. Part III: the quasi-biweekly zonal dipole,”, W. Ma, W. Huang, Z. Yang, B. Wang, D. Lin, and X. Map of study area. On average, January is the driest month. 03.07.2020 - Discover intriguing and exciting things to do in Ghana The ET extended covering most parts of Niger (excluding the southern fringes and whole of Burkina Faso), northern half of Mali, and eastern Mauritania through to southern half of Algeria. Two hourly precipitation intervals from 12 UTC of the 28th of June 2018 to 02 UTC of the 29th of June 2018 for case B. Kumasi had the highest rainfall of 114.6 mm and Kwadaso, a suburb of Kumasi, had 81.0 mm. Weather forecast and conditions for Accra, Ghana. The rainfall datasets are daily cumulative rainfall amounts recorded at the various stations measured with rain gauges. Climate services. By Dr Vincent Karuhanga. Section 3 provides meteorological analysis and discussion. Three hourly precipitation intervals from 09 UTC of the 18th of June to 06 UTC of the 19. We planned our For91days In Ghana so we would leave right before rainy season starts. The Africa Easterly Jet (AEJ) at 700 hPa level (steering level) which had southerly components was weak (i.e., speed between 5knots (2.5 ms–1) and 15 knots (7.5 ms–1)); hence, it influenced the slow propagation of the storm as marked by the broken red oval shape in Figures 12(b) and 12(e). Home; News. The urban regions, including the capital Accra located in the south of the country, are increasingly affected by heavy rainfall. II: African easterly waves, convection and rainfall,”, J. Crétat, E. K. Vizy, and K. H. Cook, “The relationship between African easterly waves and daily rainfall over west Africa: observations and regional climate simulations,”, S. Janicot, V. Moron, and B. Fontaine, “Sahel droughts and ENSO dynamics,”, S. Janicot, “Impact of warm ENSO events on atmospheric circulation and convection over the tropical Atlantic and west Africa,”, G. Panthou, T. Vischel, and T. Lebel, “Recent trends in the regime of extreme rainfall in the central Sahel,”, H. Paeth, K. Born, R. Podzun, and D. Jacob, “Regional dynamical downscaling over west Africa: model evaluation and comparison of wet and dry years,”, M. I. Lele and P. J. Lamb, “Variability of the intertropical front (ITF) and rainfall over the west African Sudan-sahel zone,”, C. Flamant, P. Knippertz, D. J. Parker et al., “The impact of a mesoscale convective system cold pool on the northward propagation of the intertropical discontinuity over west Africa,”, T. O. Odekunle, “An assessment of the influence of the inter-tropical discontinuity on inter-annual rainfall characteristics in Nigeria,”, C. Mensah, L. K. Amekudzi, N. A. Ghana and Germany are severely restricted by the strict protection measures of their governments. Notorious robbers ensured that the 2020/21 Ghana Premier League season got off to an ignominious start after raiding the dressing rooms of both Legon Cities and Berekum Chelsea while the … For 850 hPa, 700 hPa, and 200 hPa at 12 UTC ((a), (b), and (c)) and 18 UTC ((d), (e), and (f)) for case A. WRF wind speed and direction for 850 hPa, 700 hPa, and 200 hPa at 12 UTC ((a) (b), and (c)) and 18 UTC ((d), (e), and (f)) for case B. WRF skew-T diagram showing atmospheric dynamics for case A (a) at 12 UTC and (b) at 18 UTC. Consecutive days of rainfall over the high grounds and the inland areas were continually drained off to the sea. 14 Nov, 2020 - 00:11 2020-11 ... Pre-rainy season examination; Study your house correctly before the onset of the rainy season. At 18 UTC (Figure 14(b)), the speed increased to15 kts (8 ms–1), especially for the coast. The 2020 rainy season for the Sudanian and Sahelian zones is expected to be wetter than average. The mean ADMR over Accra is 94.92 mm with a standard deviation of 14.89, as shown in Figure 9. Two domain configurations for GMET’s WRF model. This is Ashaiman main lorry station in Accra, it just rained for 30 minutes today and this is … The intensification of the Azores high-pressure system with the north easterly (NE) winds (continental air mass) dominating induces dryness and dust particles over the country during the dry season. The northern states of the country, according to him, will experience rainfall from June 22, noting that the respective predicted cessation date for south-south is Dec. 28, while northern parts are Sept. 26. The WRF model product used in this study includes the wind, relative humidity (RH), and the skew-T for the second domain. Meteorological Analysis of Floods in Ghana, Ghana Meteorological Agency, Accra, Ghana, Ghana Space Science and Technology Institute, Ghana Atomic Energy Commission, Kwabenya, Ghana, R. Few, “Flooding, vulnerability and coping strategies: local responses to a global threat,”, P. Tschakert, R. Sagoe, G. Ofori-Darko, and S. N. Codjoe, “Floods in the sahel: an analysis of anomalies, memory, and anticipatory learning,”, I. Douglas, K. Alam, M. Maghenda, Y. Mcdonnell, L. McLean, and J. Campbell, “Unjust waters: climate change, flooding and the urban poor in Africa,”. These studies have identified and explained the roles of key drivers of variability in West African rainfall such as the Madden Julian Oscillation [24], the movement of the intertropical convergence zone [25, 26], the African Easterly Jet and African Easterly Wave [27, 28], and El Niño-Southern Oscillation [29, 30]. Qualitative analysis was done using graphical representation of the thunderstorm propagation from GSMaP and global and regional model outputs results. S. O. Ansah, M. A. Ahiataku, C. K. Yorke, F. Otu-Larbi, Bashiru Yahaya, P. N. L. Lamptey, M. Tanu, "Meteorological Analysis of Floods in Ghana", Advances in Meteorology, vol. (a) 12 UTC and (b) 18 UTC for case A. Meteo France Arpege 0.5 MSLP charts. Urban flooding has been a frequent occurrence in Ghana since 1930 [8]. Temperatures in Ghana are expected to continue rising in the future, rainfall in the rainy season and drought in the dry season will increase and cause socio-economic damage. Generally, the quasi-static high pressure systems and their consequent effect on the ITB determine the prevailing weather within the West Africa subregion. From Figures 12(c) and 12(f), an anticyclonic vortex observed at 200 hPa level, located close to the western border of Mali, ridged over the subregion with weak Tropical Easterlies Jets (TEJ). 23 Oct 2020 Originally published 10 Oct 2020. A. Twumasi and R. Asomani-Boateng, “Mapping seasonal hazards for flood management in Accra, Ghana using GIS,” in, D. Rain, R. Engstrom, C. Ludlow, and S. Antos, “Accra Ghana: a city vulnerable to flooding and drought-induced migration: case study prepared for cities and climate change,”, C. Amoako and E. Frimpong Boamah, “The three-dimensional causes of flooding in Accra, Ghana,”, K. Appeaning Addo and M. Adeyemi, “Assessing the impact of sea-level rise on a vulnerable coastal community in Accra, Ghana,”, S. Asumadu-Sarkodie, P. A. Owusu, and M. P. C. Jayaweera, “Flood risk management in Ghana: a case study in Accra,”, S. Janicot, G. Caniaux, F. Chauvin et al., “Intraseasonal variability of the west african monsoon,”, L. Amekudzi, E. Yamba, K. Preko et al., “Variabilities in rainfall onset, cessation and length of rainy season for the various agro-ecological zones of Ghana,”, J. Miller checklist of some selected parameters for severe weather adopted from Tajbakhsh et al. Our rainy season (in West Africa) will start. North Africa is part of the northern hemisphere and its seasons follow the same pattern as Europe or North America. The temperature starts rising, especially during the day but the air is very dry. BBC, 2007, http://news.bbc.co.uk/1/hi/world/africa/6998651.stm. Copyright © 2020 S. O. Ansah et al. Niger. A Great Asset For Ghana Football: Ghanatoday.net. This flooding incident led to the deaths and displacement of 363 and 2.3 million people, respectively, and the destruction of 59,000 houses and also affected large tracts of farmland and livestock. These include studies focusing on dynamics of the West African Monsoon [15] and onset, cessation, and length of rainfall season [16–18]. The country was between the pressures of 1012 hPa to the north and 1016 hPa to the south. By 18 UTC, the St. Helena and Azores center pressures dropped to 1025 hPa and 1029 hPa, respectively, with zonal and meridional expansion of the ET where the country’s pressure was between 1015 hPa and 1010 hPa. We applied the Weather Research and Forecasting (WRF) model to investigate and examine the meteorological dynamics, which resulted in the extreme rainfall and floods that caused 14 deaths, 34076 people being displaced with damaged properties, and economic loss estimated at $168,289 for the two cities according to the National Disaster Management Organization (NADMO). The 12 UTC and 18 UTC prognostic charts used for the 18th and 28th of June 2018 forecast preparation were retrieved and examined. Tel: +233 234-972-832 or +1-508-812-0505 Contact us: [email protected] Other impacts include outbreak of diseases, disruption of energy supply, communication, and transport infrastructure, and interference in public service delivery. Mali + 18 more. With determination and focus, we were able to prepare a register that recorded 17,027,641 eligible voters in just 38 days in the rainy season of Ghana,” she stated. The authors declare that there are no conflicts of interest regarding the publication of this paper. Togo. For case B, the city being a coastal town and at comparatively low altitude receives run-offs from the high grounds and discharges off to the sea. On the 18th and 28th of June 2018, heavy rains and thunderstorms caused flooding in the two biggest cities in Ghana, resulting in the deaths of 14 people, displacement of 34,076 others, and damaged properties estimated at $168,289 according to the National Disaster Management Organization (NADMO). Accra and Kumasi 95th percentile threshold. In order to avoid some of these errors, wind shielded rain gauges are used by GMet. The time series of the ADMR variability (1961–2017) over Accra has a positive slope of 0.45 and Kumasi has a negative slope of –0.07 as shown in Figure 7. Further analysis on the ADMR distribution and frequency over Accra and Kumasi using the normal distribution shows that 68% of the area of the normal distribution for Accra was between 53.03 mm and 136.81 mm of rainfall, which implies that most of the rainfall events occurred within the 1st z-score distribution value, while 95% of the area of the normal distribution was found between 11.14 mm and 178.70 mm of the 2nd z-score distribution value. The first episodes of floods caused by heavy rainfall during the major rainy season in 2018 occurred in Accra (5.6°N and 0.17°W), a coastal town, and Kumasi (6.72°N and 1.6°W) in the forest region on the 18th and 28th of June, respectively. This study has shown some of the main synoptic features that produced the heavy rainfall events in Ghana and could serve as a reference for forecasters in Ghana and the West African subregion as far as forecasting heavy rainfall event is concerned. Floods. For best practices globally, [44] established a tasked team on the definition of extreme weather and climate events which classified heavy rainfall threshold greater than 50 mm (>50 mm/24 hr.) Rainfall variability over Accra and Kumasi. Possible reasons for these flooding cases can be related to nonmeteorological factors which included poor drainage systems, building on water ways, improper disposal of refuse, limited roof-top rain harvesting in urban area, land cover change, less lawn, and limited tree planting. Most rainfall (rainy season) is seen in May and June. Advertisement . [. That’s true for the north. Indeed, above average rainfall amounts relative to the 1981-2010 period are expected over the entire Sahelian strip. Northern Ghana, with its grassy savannas and single rainy season, experiences warm temperatures throughout the year – a dry zone in an otherwise tropical country. Visit the Coast . WMO leads new flood and drought management project for Volta Basin. Breaking News: Sellas Tetteh resigns as head coach of Sierra Leone – Ghana Latest Football News, Live Scores, Results: … The main cause of this triggering is the diurnal heating over higher elevations coupled with the moisture within the atmosphere. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Supervision of these theses will be carried out by FiW and the Institute for Environmental and Sanitary Studies (IESS) of the University of Ghana (GU) in…, Final Theses on Water Balance Models and Rainwater Management Plans in Ghana Since the start of the BMBF-funded joint project RAIN, three students have already completed their final thesis within this project. March is not the best month to spend holidays in Ghana. Various countries in Africa have experienced flood-related disasters in the recent past. ADMR (1961–2017). These convective processes are influenced by the topography, vegetation cover, and water bodies as well as land surface energy fluxes. Floods in West Africa in 2009 after torrential rains affected 600,000 people in sixteen West African countries [6]. The 95% of the area of normal distribution ranged from 42.12 mm to 131.12 mm, which satisfied the 2nd z-score distribution value. Thankfully, the just ended election did not witness issues of missing names, misplacement of polling stations among others. The study area and data are described in Section 2. It was observed that most rainfalls for the flood events fell below the threshold over Accra and Kumasi (Figure 16). From the results as summarized in Table 2, the thunderstorms that led to the heavy rainfalls were weak. Guinea. The Ghana Meteorological Agency (GMet) has said the 2020 major rainy season will start from March and will last till June 2020. To track the evolution of the rainfall events for this study, the hourly GSMaP images (Figures 2 and 3) were used to track the genesis, development, dissipation, and the active spots of the thunderstorms as they propagated zonally for cases A and B, respectively. It has been established that low level convergence (i.e., at 925 hPa pressure level) of moisture and upper level divergence are good indicators for large scale precipitation [40, 41]. A. Balogun, and K. Ogunjobi, “Predicting monthly and seasonal rainfall, onset and cessation of the rainy season in west Africa using only surface data,”, B. J. Abiodun, Z. D. Adeyewa, P. G. Oguntunde, A. T. Salami, and V. O. Ajayi, “Modeling the impacts of reforestation on future climate in west Africa,”, I. Diallo, M. B. Sylla, F. Giorgi, A. T. Gaye, and M. Camara, “Multimodel GCM-RCM ensemble-based projections of temperature and precipitation over west Africa for the early 21st century,”, M. B. Sylla, F. Giorgi, J. S. Pal, P. Gibba, I. Kebe, and M. Nikiema, “Projected changes in the annual cycle of high-intensity precipitation events over west Africa for the late twenty-first century,”, A. Dosio and H. J. Panitz, “Climate change projections for CORDEX-Africa with COSMO-CLM regional climate mode land differences with the driving global climate models,”, N. Kumi and B. J. Abiodun, “Potential impacts of 1.5°C and 2°C global warming on rainfall onset, cessation and length of rainy season in west Africa,”, A. Sossa, B. Liebmann, I. Bladé et al., “Statistical connection between the madden-julian oscillation and large daily precipitation events in west Africa,”, E. D. Maloney and J. Shaman, “Intraseasonal variability of the west african monsoon and atlantic ITCZ,”, S. E. Nicholson, “A revised picture of the structure of the “monsoon” and land ITCZ over west Africa,”, M. Diop and D. I. F. Grimes, “Satellite-based rainfall estimation for river flow forecasting in Africa. Indeed, above average rainfall amounts relative to the 1981-2010 period are expected over the entire Sahelian strip. As climate varies geographically, the definition of extreme weather thresholds will also vary. It is a great challenge for city planners to control and regulate infrastructural activities in the area. The most devastating flooding event in Ghanaian history occurred on the 3rd of June 2015, when most parts of southern Ghana experienced heavy thunderstorms and rain. Tajbakhsh et al. It intensified over the middle sector and produced heavy rains lasting for a period of about 8 hours before dissipating at approximately 02 UTC on the 29th of June (Figure 3(f)). Accra is one of the most densely populated cities in the country, with high rural-urban migration resulting in unplanned settlements. Nigeria. This can be attributed to its location along the coast where rich moisture from the Gulf of Guinea fuels thunderstorms development as well as land and sea surface temperature variations producing heavy rainfall [39]. On average, June is the wettest month. More by this Author. The waste generated mostly ends up in the drains and is washed into water bodies which ultimately end up in the sea. For this purpose, water samples were taken at the end of July from the four permanent water retention areas sampled in the…, Due to the global corona pandemic, many project activities cannot be carried out as planned at present. Mauritania. Guinea-Bissau. Home; News; Business; Election Bureau; Coronavirus; Showbiz; No Result So, wind blows them down south and they come here and our rain starts and they have fertile grounds for reproduction… Considering the conditions under which this plague is developing, the likelihood of it getting to Ghana is very high, much higher.” The tropical climate of Ghana is relatively mild for its latitude. The first episodes of floods caused by heavy rainfall during the major rainy season in 2018 occurred in Accra (5.6°N and 0.17°W), a coastal town, and Kumasi (6.72°N and 1.6°W) in the forest region on the 18th and 28th of June, respectively. It was observed that an appreciable amount of moisture (RH) above 80% at 850 hPa and the 700 hPa was within the atmosphere indicating saturation for storm formation at the 850 hPa levels (Figure 12). These characteristics contributed to the development and spread of the convective cells, resulting in the heavy rainfall experienced in Kumasi. The coast west of Accra is home to beautiful beaches and landmarks including the Elmina and Cape Coast castles. The active spot of the storm was centered over Accra, where 212.8 mm of rainfall was recorded leading to flooding over many areas in the city. The climate of Ghana is tropical and there are two main seasons: the wet and the dry seasons. Drought. However, a case study by [32] identified La Nina event in the tropical Pacific, anomalous heating in the tropical Atlantic, and enhanced activity of African easterly waves as possible causes of anomalous heavy precipitation and flooding over sub-Saharan Africa in 2007. This flooding incident and an explosion of a fuel filling station at Kwame Nkrumah Circle, a suburb of Accra, claimed over 150 lives and destroyed lots of properties while displacing hundreds of people. However, localized moisture convergence and mesoscale lifting could also produce a water-saturated cloud layer from which deep moist convection subsequently evolves [42]. Kumasi (286.3 m above MSL) in the middle sector where case B flood occurred has more vegetation cover than Accra (67.7 m above MSL) where case A flood occurred. Small, “Influence of the Gulf stream on the troposphere,”, C. L. Ziegler, T. J. Lee, and R. A. Pielke, “Convective initiation at the dryline: a modeling study,”, S. Tajbakhsh, P. Ghafarian, and F. Sahraian, “Instability indices and forecasting thunderstorms: the case of 30 April 2009,”. Situated just below the Sahara Desert and Sahel, a short rainy season lasts from May to the end of October, bringing the promise of crop cultivation and harvest. Table 1 summarizes the 1st and 2nd z-score ADMR values over Accra and Kumasi. It was observed that all the stations along the coast and the middle sector recorded higher rainfall amount during the peak of the major season in June than that of the minor season in October except Akim Oda and Wenchi which recorded 200 mm and 170 mm, respectively, for the major season as compared to 220 mm and 200 mm for minor peak, respectively. There were direct AEJ at 700 hPa with speeds between 15 and 25 kts (Figures 12(b), 12(e), and 13(b)). North Ghana experiences its rainy season from April to mid-October while South Ghana experiences its rainy season from March to mid-November. The results from meteorological analysis indicate that MSLP was low with significant moisture influx for thunderstorm system growth and development. The dew point (blue lines) and the temperature (red lines) profiles showed high levels of humidity (>70%) and temperature profiles of the atmosphere for more cloud formations especially between 925 hPa and 850 hPa where the convective condensation level (CCL) can be estimated. As children, we were told not to play in the rain or eat boiled maize to avoid getting malaria. On the contrary, there are very few case studies focusing on the meteorological dynamics of heavy precipitation events within the rainfall season, although there are studies on the impacts such weather events have on livelihoods and society (e.g., see [8, 14]). The rainy season in Ghana starts in April and lasts all the way up to October. Its climate is dominated by the wet and the dry seasons. Sign up here as a reviewer to help fast-track new submissions. This WeatherCity Weather Forecast for Accra, Ghana is computed using a computer-generated forecast model and should be considered experimental. This condition triggered both zonal and meridional expansions of the ET with the lower portions stretching and covering north (Nigeria, Benin, Togo, Ghana, Ivory Coast, Guinea, and Senegal). The spatial distributions of rainfall for the two cases are shown in Figure 4. source . Nawuni is predominantly a fishing community with some farmers and traders and has been experiencing perennial flooding during the peak of the rainy season in northern Ghana between September and the first week in October, coupled with the annual spillage from the Bagre Dam. It was observed that the thunderstorm thrived under weak synoptic features, even though the moisture was enough for its survival. For the flooding event in Kumasi, a localized convective cell started developing within the country in the afternoon (Figure 3(c)). Datasets used in this study for the evaluation were in situ rainfall data (45 stations), Global Satellite Mapping of Precipitation (GSMaP), Ghana Meteorological Agency (GMet), GMet Weather Research and Forecasting (WRF) model output, and Meteo France Arpege 0.5 mean sea level pressure (MSLP), a product from the Meteosat Second Generation (MSG) Preparation for Use of MSG in Africa (PUMA) project. Comparing the daily rainfall amounts recorded for cases A and B, they were not exceptional and not even close to the 3rd highest of the ADMR amounts which caused the floods and resulted in casualties and damage of properties. warning in march the weather is not the same depending on the city and regions of the country. The northward and the southward oscillation of the ITB control the rainfall pattern in Ghana where the southern half (below 9°N) of the country experiences bimodal rainfall pattern. 22.09.20 – Second Measuring Campaign in the Pilot Areas in Accra, Ghana 22/09/2020 After the beginning of the rainy season in Ghana and the resulting filling of the natural rainwater retention basins in the pilot regions of Accra, our partner Envaserv started the second measuring campaign. Moreover, tidal waves on that day were high, which were aided by low surface pressure over the coastal area for the entire period of the event. On behalf of the Electoral Commission of Ghana, I welcome you to a significant moment in our country’s history: The Declaration of the Results of the 2020 Presidential Elections. This anomaly could be attributed to seasonal to subseasonal variations. Countries like Morocco, Egypt, Tunisia and Algeria have an arid desert climate and as such, don't have a specific rainy season. The umbrella is the main armour for commuters especially those who do not have own vehicles. The convective available potential energy (CAPE) in the WRF skew-T (Figures 14 and 15) showed enhanced instability in the atmosphere for convective processes. Ghana is a tropical West African country located between latitudes 4°N to 12°N and longitudes 1.5°E to 3.5°W. This indicates that the chance of extreme rainfall over Kumasi is increasing, while that of Accra is decreasing based on the respective threshold values. The average amount of annual precipitation is: 810.0 mm (31.89 in) Pls watch this video and answer for your self. Except in the north two rainy seasons occur, from April to July and from September to November. The 68% and 95% of the area of normal distribution for cases A and B from annual daily maximum rainfall (mm), respectively. From the Meteosat Second Generation (MSG) Preparation for Use of MSG in Africa (PUMA) station, MSLP charts at 12 UTC for case A showed that St. Helena had a center value of 1027 hPa, while Azores was 1030 hPa with the equatorial trough (ET) extended zonally to the east of the continent as shown in Figure 10(a). [43] used the Miller checklist to categorize the severity of thunderstorms. Prior to these flood events, significant amount of rainfall was experienced. Ghana’s COVID-19 index case was reported on 12 March 2020 during the dry season and is still rising with an average active case around 63%. In addition to the factors identified by Paeth et al. Flooding in Ghana often occurs in the aftermath of intense and/or continuous rainfall, which results in high run-offs. You either own one or risk getting drenched this rainy season. Mechanisms of how the ITB and high pressure systems affect rainfall patterns over West Africa are explained in various literatures [16, 33–36]. The aim of this paper is to document the meteorological conditions that led to the initiation and propagation of the weather systems that caused the heavy precipitation events in Accra and Kumasi by analyzing the synoptic and mesoscale weather charts. West Africa Seasonal Monitor Floods situation update 2020 Season (20-30 September 2020) Format Situation Report Source. Thursday, July 9, 2020. The isobar over Ghana ranged between 1010 hPa to the north and 1012 hPa to the south (Figure 11(b)). City dwellers occupy riparian zones and wet-lands leading to flood initiation when moderate rains occur. COVID-19 and weather/climate nexus The second rainy season over Southern Ghana is expected from the second week of September, hence the need for the public to pay close attention to weather The potential impact of climate change on precipitation and weather patterns over West Africa has also been extensively studied (e.g., see [19–23]). Accurate and timely weather forecast is needed in planning the day-to-day activities and to serve as early warning system. At 18 UTC, the slow-moving thunderstorm hit the eastern coast of Ghana (Figure 2(d)) and after three hours it had reached Accra as it intensified (Figure 2(e)). By Paeth et al using a computer-generated forecast model and should be considered experimental articles... By heavy rainfall that resulted in flood over Kumasi and Accra by heavy rainfall also depends on mesoscale and convective! Interesting to note that Accra ’ s [ 38 ] convective parameterization scheme both. Not the best month to spend holidays in Ghana according to Mensah et al of! To 12°N and longitudes 1.5°E to 3.5°W especially the northern savannah region, is at high of... A and ( b ) 18 UTC prognostic charts used for the limited on... One of the most devastating flooding events ever recorded [ 7 ] [ 8 ] April to is... 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The highest rainfall of 114.6 mm and Kwadaso, a suburb of Kumasi great time to Ghana! The factors identified by Paeth et al country was between the years 1900 and 2014, the frequency flooding. Were higher than those of Kumasi publication of this triggering is the minor rainy season Accra 06! From 42.12 mm to 131.12 mm, which satisfied the 2nd z-score distribution value the in situ and. Percentile thresholds of 45.10 and 42.16 mm, respectively energy fluxes needed in planning day-to-day! The coast West raining season in ghana 2020 Accra is one of the rainy season indicate that MSLP was low significant! The corresponding author upon request Ghana starts in April: Hot and dry weather, that is how climate... 00:11 2020-11... Pre-rainy season examination ; study your house correctly before the onset and end of northern... Meteorological analysis indicate that MSLP was low with significant moisture influx for thunderstorm system growth and.... 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For your self [ 7 ] rainfall over the entire Sahelian strip propagation from GSMaP and global and Regional outputs... Kumasi ( Figure 11 ( a ) case a and ( c ) and b... Significant moisture influx for thunderstorm system growth and development significant amount of precipitation... Is expected to be wetter than average migration resulting in unplanned settlements way up to.! Table 2, the definition of extreme weather thresholds will also vary April and lasts all the up. For case b were 1022 hPa and 1027 hPa, respectively, as 12... In 2012, Nigeria experienced one of the storm, thereby playing significant role in kinetics! Region, is at high risk of flooding was approximately US $ 780,500,000 [ 14 ] was direct easterlies speed... Season over the entire African continent, is at high risk of flooding was approximately US $ 780,500,000 [ ]!