NIGERIAN METEOROLOGICAL AGENCY NATIONAL WEATHER FORECASTING AND CLIMATE RESEARCH CENTRE, NNAMDI AZIKWE INTERNATIONAL AIRPORT, ABUJA, NIGERIA DIRECTORATE OF RESEARCH & TRAINING, RESEARCH DIVISION WEEKLY WEATHER REVIEW MONDAY 25TH TO SUNDAY 31ST MARCH 2013 The Inter-Tropical Discontinuity (ITD) fluctuated between latitude 12.0oN and latitude 14.6oN in the western border of the country and between latitude 9oN and latitude 14oN in the eastern border. Its mean positions in the western and eastern borders are 13.2oN and 11.2oN respectively. The maximum temperature range was between 42oC at Potiskum and 32oC at Portharcourt. The minimum temperature range was between 27oC at Ibi and 18oC at Jos. The relative humidity ranged between 99% at Calabar and 10% at Potiskum. It was partly cloudy to cloudy conditions with warm afternoon and cool night prevailed most of the period. Calabar recorded the highest cumulative rainfall of 110.0mm for the week. MONDAY (25TH): Generally fine weather conditions prevailed across the country with isolated cases of moderate visibility in hazy weather conditions. Only Calabar in the South experienced thunderstorms with rainfall amount of 42.6mm. The maximum temperature range was between 40oC at Katsina and 29oC at Owerri. TUESDAY (26TH): Generally fine weather conditions prevailed across the country with hazy atmosphere. However, thundery activities were experienced over the south western parts with Oshogbo recorded 29.3mm rainfall, Ikeja 4.3mmm, and Lagos Marine 7.3mm. The maximum temperature range was between 41oC at Katsina, (and Yelwa) and 33oC at Jos. WEDNESDAY (27TH): Fine weather conditions prevailed throughout the country except Abeokuta that had 0.5mm of rainshowers. The maximum temperature range was between 40oC at Bauchi (and Gombe) and 32oC at Oshogbo. THURSDAY (28TH): Thundery activities were experienced in some part of the country. Abuja had 4.7mm rainfall, Akure 33.0mm, Benin 40.4mm, Ibadan 16.2mm, Ikeja 0.5mm, Kaduna 13.6mm, Makurdi 24.4mm, and Warri 10.7mm. The maximum temperature range was between 38oC at Makurdi and 32oC at Owerri. FRIDAY (29TH): Fine weather conditions prevailed generally across the country. However Ilorin experienced rainshowers of 1.0mm. The maximum temperature range was between 42oC at Potiskum and 28oC at Iseyin. SATURDAY (30TH): Generally fine weather conditions prevailed with isolated cases of thunderstorm in few places. Calabar reported 63.3mm of rainfall, Ilorin 47.8mm, Jos 0.5mm, Lokoja 7.1mm, and Minna 0.5mm respectively. The maximum temperature range was between 40oC at Kano and 29oC at Jos. SUNDAY (31ST): Fine weather conditions prevailed except Calabar, Makurdi and Lafia that experienced thunderstorms with 4.1mm, 19.8mm, and 17.2mm rainfall respectively. Maximum temperature ranged between 40oC at Gombe (and Yelwa) and 29oC at Kaduna. 14 N 14 N Sokoto Katsina Gusau 12 N Kano Katsina Gusau 12 N Potis Damat Maiduguri Zaria Kaduna Yelwa Sokoto Nguru 10 N Kano Potis Damat Maiduguri Zaria Kaduna Yelwa Bauchi Nguru Gombe Bauchi Gombe 10 N Jos Bida Yola Abuja Shaki Lafia Ilorin Ibi Iseyin Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom 8N 6N Warri Rainfall Bida Ilorin Ibi Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom 70mm 6N 50mm Warri 10mm 0 220 440 660 12km 10km 8km Owerri 6km Calabar Yenogoa PHC 30mm 4N Horizontal Visibility Lafia Iseyin 90mm Calabar Yola Abuja Shaki 8N 110mm Owerri Yenogoa PHC Jos Minna Latitude Latitude Minna 4km 4N 880 km 0 220 440 km 880 660 -10mm 2E 4E 6E 8E 10 E 12 E 2km 14 E 2E 4E 6E 8E Longitude 14 N Sokoto Katsina Gusau Kano Gombe TEMP Lafia Ilorin Ibi Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom 42 C 39 C 6N 38 C Yola Abuja Ilorin Ibi Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom TEMP Iseyin 36 C 220 Gombe Lafia Warri 33 C 31 C 28 C 26 C Owerri Yenogoa PHC Calabar 23 C 35 C 4N 0 Bida 41 C Calabar Bauchi Jos Shaki 8N Iseyin Owerri Potis Damat Maiduguri 10 N Yola Shaki Yenogoa PHC Kano Minna Abuja Nguru Zaria Kaduna Jos Minna Warri Gusau Yelwa Bauchi 10N Bida Katsina 12 N Potis Damat Maiduguri Zaria Kaduna Yelwa Sokoto Nguru Latitude 12N Latitude 14 E Fig. 2: Horizontal Visibility in Week 13 (25th - 31st March, 2013) 14N 6N 12 E Longitude Fig. 1: Cummulative Rainfall in Week 13 (25th - 31st March, 2013) 8N 10 E 440 660 880 km 4N 33 C 0 220 440 660 km 880 21 C 18 C 32 C 2E 4E 6E 8E 10 E 12 E 2E 14 E 4E 6E 8E 10 E 12 E 14 E Longitude Longitude Fig. 4: Minimum Temperature in Week 13 (25th - 31st March 2013) Fig. 3: Extreme Temperature in Week 13 (25th - 31st March 2013) 2 14 N 14 N Katsina Gusau 12 N Kano Latitude 6N RH Ilorin Ibi Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom 100% Iseyin Bida 8N 85% 70% 6N 0 220 440 660 km 880 Yola Abuja Lafia Warri 85% 70% 55% Owerri Yenogoa PHC 40% Calabar 25% 4N 25% RH Ilorin Ibi Uyo Lokoja Oshogbo Makurdi Ado Ekiti Ibadan Akure Abeokuta Ondo Ijebu-Ode Ikeja Enugu Ogoja Benin Onitsha Ikom 40% 4N Gombe Iseyin 55% Calabar Bauchi Jos Shaki Owerri Yenogoa PHC Potis Damat Maiduguri 10 N Yola Lafia Warri Kano Minna Abuja Shaki Nguru Zaria Kaduna Jos Minna 8N Gusau Yelwa Bauchi Gombe 10 N Bida Katsina 12 N Potis Damat Maiduguri Zaria Kaduna Yelwa Sokoto Nguru Latitude Sokoto 0 220 440 660 880 km 10% 10% 2E 4E 6E 8E 10 E 12 E 2E 14 E 4E 6E 8E 10 E 12 E 14 E Longitude Longitude Fig. 6: Lowest Relative Humidity in Week 13 (25th - 31st March 2013) Fig. 5: Highest Relative Humidity in Week 13 (25th - 31st March 2013) Please send your comments to: The Director-General / CEO, Nigerian Meteorological Agency Pope John Paul II Street, Maitama, Abuja; or The Director Research & Training PMB 1215, Oshodi, Lagos. mail: weeklywxreview@gmail.com 3