Warm water comes though a facet because you have a boiler or anything else to heat up the water.
Usually from a hot water tank.
Odds are that the cold water lines to the faucet you are trying to use are shut off but the hot water lines coming from the water heater are not. That is why you have hot water but no cold water.
The part the water pours out of, usually activated by a lever in houses (perhaps one for cold water, one for warm water) and sometimes in public bathrooms. However, it is common for restaurants to have automatic hand sensors that generate the faucet. Otherwise, you could look "faucet" up in a dictionary.
Hot water tank not working or a faulty faucet.
It is hurricane season and the oceans are warm. That warm water helps fuel the storms.
it has to heat up, just like water has to warm in the faucet.
no major warm water current runs through it
Your hot water line needs more insulation probably. It sounds like your hot water is cooling before reaching that faucet. It may be that the one faucet is not able to turn all the way to hot until you adjust the faucet (usually in the handle) of a 10 year old or newer faucet.
Water in open ponds and lakes will lose heat to the colder air above it. Water in pipes exposed to the air, or beneath frozen ground, will also lose heat. In cold weather, water from a hot water heater must first warm all of the pipes it travels through before it reaches the open faucet.
no WARM WATER IS NOT AS PURE as cold water as it goes through difeernt pipes to get heated.
A STUCK THERMOSTAT WILL DO THAT ESPECIALLY WHEN THE ENGINE STARTS 2 GET WARM-THEN ALOT OF WATER WILL BOIL OUT--------IF THE THERMO IS GOOD -U WILL C WATER MOVEMENT(FLOW) AFTER THE ENGINE WARMS UP.
If it is just one faucet, the cold water line may be next to a heat source. If it is at all faucets, perhaps the lines are reversed on the water heater.