1. UNCLASSIFIED OP GRITROCK SIERRA LEONE MET ASSESSMENT Sunday 05 July 2015

2. UNCLASSIFIED 041330 Z SATELLITE IMAGE Valid at Commentary Largely clear in the N. Plenty of convection developing over land further south, including over Sierra Leone. Isolated heavy shower over the coast of SW Sierra Leone. Isolated deep convection also breaking out over land to the E, starting to produce the odd storm. Note: Crosses indicate recent thunderstorm activity – red being from the last 10 minutes.

3. Forecast Valid: 0600 Z to 2359 Z Fronts / boundaries valid at 1200Z Issued by the JOMOC Sierra Leone Coastal (including FREETOWN) 0600-1200 Z1200-1800 Z1800-2359 ZRotary TS / V / C TS / V Airlift Operations TS / V / C TS / V Trafficability Locally wet ground Personnel R RR Inland SL 0600-1200 Z1200-1800 Z1800-2359 ZRotary TS / V / CTS / V Trafficability Locally wet ground Personnel R T T R R Maritime/Amphibious 0600-1200 Z1200-1800 Z1800-2359 Z Sea and Swell Wind/Visibility VVV Personnel RRR General 06 Z 12 Z 18 Z24 ZIllumination Moon/Sunrise/set Sunrise: 0639 Z Sunset: 1916 Z Moonrise: 052227 Z Moonset: 050948 Z Min/Max mlx between ECT and MCT Min/Time: 1.7 (2020 Z – 2200 Z) Max/Time: >100 (TL 051950 Z and from 060600 Z) Moon Phase Phase: 87% - 79% (Waning) FavourableMarginalUnfavourable Any residual showers and thunderstorms dying out or clearing west into the ocean, leaving areas of low cloud, haze and mist, this dispersing during the morning. However, more deep convective cloud developing during the afternoon, producing heavy showers and thunderstorms, these becoming more widespread through the evening before dying away or clearing overnight. Haze, mist and low cloud reforming overnight. 2310 2000 2015 2210

4. Meteorological Impact Matrix Tue 7 th JULMon 6 th JUL Similar to Tuesday. Wed 8 th JUL Any residual overnight showers and thunderstorms will die out or move away over the ocean, leaving areas of low cloud and mist which will dissipate during the morning. More deep convective cloud developing during the afternoon, producing scattered showers and storms, these becoming more widespread during the evening and continuing into the night. Haze, mist and low cloud will reform overnight. Sierra Leone 06/07 00-06Z 06/07 06-12Z 06/07 12-18Z 06/07 18-00Z 07/07 00-06Z 07/07 06-12Z 07/07 12-18Z 07/07 18-00Z 08/07 00-06Z 08/07 06-12Z 08/07 12-18Z 08/07 18-00Z Rotary TS/V/CV/CTS/V TS/V/CV/CTS/V TS/V/CV/CTS/V Airlift Operations TS/V/CV/CTS/V TS/V/CV/CTS/V TS/V/CV/CTS/V Trafficability WetDampWet DampWet DampWet Personnel RR TT RR RR TT RR RR TT RR Maritime VVVVVVVVVVVV Similar to Monday.

5. UNCLASSIFIED Joint Operations Meteorology and Oceanography Centre Web www.jomoc.net RLI SLI www.jomoc.r.mil.uk www.jomoc.s.mil.uk Phone 01923958100 Email NAVYOPS-JOMOCGROUP@mod.uk Address JOMOC, Northwood HQ, Middx, HA6 3HP, UK Please leave any feedback regarding this product in the space below and return to us at JOMOC and we will endeavour to use this feedback to improve our services to you: