Africa Hazards Briefing August 16, 2011 Miliaritiana Robjhon

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Presentation transcript:

Africa Hazards Briefing August 16, 2011 Miliaritiana Robjhon

850 hPa Wind Vector Anomalies Heavy rains off the coast of West Africa, Nigeria, Chad, western Sudan were linked to anomalous westerlies during the past week.

Last WeekThis Week Weekly Rainfall Totals: West Africa Continuation of more localized rainfall distribution in the Sahel, with heavy rains observed in central Senegal and western Niger. Moderate rains observed in western Mali.

Rainfall patterns in Mali Rainfall anomaly, 3 rd Dekad of JulyRainfall anomaly, May-July Source: Aminata Makalou, Mali Met. Ser.

Rainfall patterns in Niger Rainfall totals, JulyRainfall anomaly Source: Special Bulletin for Agriculture for Niger

Rainfall patterns in Nigeria Rainfall totals, 3 rd Dekad of July Rainfall anomaly, 3 rd Dekad of July Soil moisture Source: James Adamu, NIMET

7 Day 30 Day Last WeekThis Week

Kayes, Mali Gaya, Niger

Vegetation Conditions NDVI anomaly Vegetation Health Index Source: NESDIS/STAR Improvement in Niger, but persistent poor conditions along the Mauritania-Mali and eastern Nigeria. Last WeekThis Week

Weekly Rainfall Totals: Eastern Africa

Rainfall over Ethiopia July rainfall anomalyRainfall anomaly, June-July Source: Ethiopian Meteorological Agency Source: Chris Funk, using Ethiopian Agromet and unbiased RFE climatology Both appear to agree on the dryness across portions of the western and central regions. no data below-average average above-average

7 Day 30 Day Last WeekThis Week

Buuloburde, Somalia Kisumu, Kenya

Vegetation Health Index Source: NESDIS/STAR Vegetation Conditions NDVI anomaly Slightly improving conditions in eastern Sudan and western Ethiopia. Last WeekThis Week

1200 Z 17 May 2011 IR Satellite Imagery

GFS 7-day Verification GFS seems to capture the location, but over forecasts the rainfall amounts.

GFS 1-week Rainfall Forecast