UNCLASSIFIED OP GRITROCK SIERRA LEONE MET ASSESSMENT Monday 6 th April 2015

UNCLASSIFIED Z SATELLITE IMAGE Valid at Commentary Convective cloud across the coastal fringe and south. Thunderstorms across the neighbouring country (crosses indicated recent thunderstorm activity).

Forecast Valid: 0600 Z to 2359 Z Fronts / boundaries valid at 1200Z Issued by the JOMOC Sierra Leone Coastal (including FREETOWN) Z Z ZRotary C/V Airlift Operations C/V Trafficability Personnel T Inland SL Z Z ZRotary C/V TS TS C/V Trafficability TS TS C/V Personnel T / R R Maritime/Amphibious Z Z Z Sea and Swell Wind/Visibility V V Personnel General 0600 Z 1200 Z 1800 Z 2400 ZIllumination Moon/Sunrise/set Sunrise: Z Sunset: Z Moonrise: Z Moonset: Z Min/Max mlx between ECT and MCT Min/Time: 1.46 ( Z) Max/Time: 131 ( Z) > 100 at Z Moon Phase Phase: 97% becoming 93% (Waning) FavourableMarginalUnfavourable Mist, low cloud and hill fog slow to lift through the morning. Becoming hot inland but cloud and showers developing, mainly away from the coastal fringe with the risk of some heavy/thundery showers most likely across the south and east. Showers/thunderstorms lingering into the night with mist/low cloud reforming

Meteorological Impact Matrix Sierra Leone 06/07 Darkness Tue 07 Daylight 07/08 Darkness Wed 08 Daylight 08/09 Darkness Thu 09 Daylight Rotary TS/V C/V C/V TS/V TS/V C/V C/V TS/V TS/V C/V C/V TS/V Airlift Operations TS/V C/V C/V TS/V TS/V C/V C/V TS/V TS/V C/V C/V TS/V Trafficability R (SE) Personnel T (inland) / R (SE) Maritime VVVVVV Tue 07 APR Low cloud and mist at first, with sunny spells developing. Risk of showers and thunderstorms developing during the afternoon and lingering into evening most likely across the south and east. Mist and low cloud reforming overnight. Thu 09 APRWed 08 APR Low cloud and mist at first, with sunny spells developing. Risk of showers and thunderstorms developing during the afternoon and lingering into evening most likely across the south and east. Mist and low cloud reforming overnight. Low cloud and mist at first, with sunny spells developing. Risk of showers and thunderstorms developing during the afternoon and lingering into evening most likely across the south and east. Mist and low cloud reforming overnight.

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