Weather. Get current water temperatures, wind speeds, wave heights and more by clicking on the below links and then clicking on the observations tab. Current Conditions at Lake Mead & Lake Mohave - Lake Mead National Recreation Area (U.S. National Park Service) Current Conditions at Lake Mead & Lake Mohave. If a monsoon develops, which can happen rapidly, those on the water should find a sheltered cove or shore. Launch ramps become crowded after storms arrive. It’s also wise to write down current GPS coordinates, so rescue crews can locate you more quickly. If flash flooding occurs on land, visitors should seek high ground.