Flathead Lake Secchi Dip-in Data Entry Name * First Name Last Name Email * Date Time Lake depth (if known) in feet Location (Lat/Long) Water temperature (degrees C or F) WATER CONDITIONS Water color Clear Brown Green Gray Yellow Blue-green Amount of suspended sediment None Minimal Moderate Substantial Amount of suspended algae None Minimal Moderate Substantial Amount of waterfowl activity None Minimal Moderate Substantial Water odor None Fishy Septic-like Musty Rotten egg-like Other observed substances Leaves/debris Dead fish Pollen Oily film Algae mats Algae clumps Sediment clumps WEATHER CONDITIONS Sunlight conditions Strong sunlight Hazy sunlight Bright clouds Overcast Air temperature Cold (<40F) Cool (41-60F) Warm (61-80F) Hot (81-90F) Very hot (>90F) Wind conditions Calm Breezy Strong General wind direction North Northwest Northeast East West South Southeast Southwest Water surface conditions Calm Ripple waves Small waves Moderate waves White caps SECCHI DISK OBSERVATIONS Disappear (ft) Reappear (ft) Average depth (ft) Secchi disk visible on the bottom of the lake Yes No Thank you so much for your participation in the Flathead Lake Secchi Dip-in!
