If you are going for an extended stay in the backcountry, the gear you bring depends on your itinerary and your prior experience. A walking stick to probe river depths and bottom stability is useful. Camping in sheltered areas, bringing a strong tent with stakes, and knowing when to stay put will weather you through these storms. High winds can be sustained for days at a time and being prepared with extra food and water will make it more comfortable and safe for you. Heavy rains and long or late melts will add a considerable amount of water to the river system.
Most rivers are glacial and turbid.
Very small creeks can usually be waded across, but larger rivers are mainly crossed at jump spots. This isn't a foolproof method either. You can never be too sure of the stability of the other side, or your ability to jump a wide space. Talk to a ranger about weather and river conditions before you go into the backcountry. Some think a lost visitor should be charged for search and rescue, while others think such a policy will prevent people in need of rescue from accepting help.