IndexGPSMAP 640 Owner’s Manual 19indexaalarmsflash flood 11flood 11marine 11severe storm 11tornado 11animated radar loop 1antennas 13, 14Bbroadcast rate, weather 1bulletins, weather 3, 9buoy reports 8Cchange weather 2channel guide 12city forecasts 4cloud cover 1, 10coastal forecast 4current conditions 9Ffishing information 6fish location 7, 11forecasts 3city 4fish 11future 3marine 4offshore 4past 3present 3weather 3Hhurricane 2Llegends 6, 10lightning 2local weatherautomotive 13marine 8Mmarine bulletin 9nnext forecast 3, 6, 8Ooffshore forecast 4overlay, weather 9Pprecipitation 1presets 12pressure centers 4pressure, surface 7previous forecast 3, 6, 8rradio receiver iradio, XM satelliteautomotive 13marine 12Ssea conditions 5sea surface 9sea temperature 10simulator mode istorm cells 2subscriptionweather 11surface pressure 7surface winds 5symbols, weather 5Ttemperature, sea 10trafficincidents 14subscriptions 15VvisibilityNavigation chart 10weather screen 8volume 12, 14Wwarnings, weather 3warranty, weather data 16water temperature 7wavedirection 6height 6period 6waypoints, creating 9weatheralarms 11bulletins 3fronts 4overlay 9precipitation information 1warnings 3winds, surface 5XXM NavTraffic 15XM radio 1automotive 13marine 12XM Satellite Radio 12XM services 13XM traffic 14XM weather 1XM WX Satellite Weather 1