Water Temperature Data for Porkchop Geyser, Yellowstone National Park

This pool is located at the southwest end of Norris’ Back Basin.

It erupted as a geyser until 1989 when it erupted forcefully, hurling rock from its vent to form a 5-m-wide pool. The water is neutral-to-alkaline and rich in Cl. The temperature is measured ~20 cm beneath the pool surface, close to the pool’s edge.

Porkchop Geyser, Norris Geyser Basin, Yellowstone National Park....

Porkchop Geyser, Norris Geyser Basin, Yellowstone National Park. (Credit: Lowenstern, Jacob. Public domain.)

Water temperature is measured beneath the pool surface. Temperature increases may reflect increased inflow of thermal water. Sudden decreases in temperature could be a result of a drop in water level beneath that of the temperature probe. This will usually result in large diurnal (24-hour) variations as the probe measures air temperature instead of water temperatures. Smaller diurnal variations are normal in pools.

Daily Temperature Graph

Daily Temperature Graph - Porkchop Geyser

Weekly Temperature Graph

Weekly Temperature Graph - Porkchop Geyser

Monthly Temperature Graph

Monthly Temperature Graph - Porkchop Geyser

Additional Information