Wind rearranges the early season snowpack on Mount Hood, Oregon. NRCS photo by Spencer Miller.
Something about January’s water supply forecast confused me. Current condition maps of the Pacific Northwest are a discouraging spread of red dots, meaning the snowpack contains less than half the normal amount of water. But water supply forecasts for the same region predict normal streamflow in the spring and summer. How can that be? Less snow means less snowmelt, right? Well…maybe.
To rise above my simple, linear thinking, I met with Rashawn Tama with USDA’s National Water and Climate Center. Tama, a hydrologist and forecaster for USDA’s Natural Resources Conservation Service, produces forecasts for the Columbia River basin. His forecasts are built around prediction models that help transform tables of raw data into meaningful maps and colorful dots. Read more »
Dee Waldron, a Morgan County farmer, uses data from the NRCS Soil Climate Analysis Network, or SCAN, to make more informed farm management decisions.
Utah dairyman Dee Waldron watches the weather closely. He wants clear, up-to-date weather and climate information anytime and anywhere that help him make critical farming decisions, such as when to irrigate, plant and harvest.
Waldron operates a dairy and feed grain farm in Morgan County, just east of Salt Lake City. This area is considered a high mountain desert and is not very productive without annual mountain streamflows stored in irrigation reservoirs.
“Before, I used to take a shovel in the field, dig down, and guess by feeling how much moisture was available for my crops,” Waldron said. “Now I use my computer and iPhone to access the local weather forecast, the amount of soil moisture, the snow levels in the mountains, the amount of water in the river, and even the soil temperature. This really helps us as agricultural producers.” Read more »
NRCS Oregon Hydrologist Julie Koeberle helps Soil Scientist Thor Thorson calculate current water content in snow. NRCS photo.
Every winter Westerners look to the mountains and may not realize they’re peering into the future. More snow cap means more water come spring and summer. Many lives and livelihoods depend on nature’s uneven hand.
Thanks to USDA’s National Water and Climate Center, what used to be speculation is now science. Through a network of high-elevation weather stations across the West, the center accurately forecasts how much water Western states will receive from snowmelt.
The data benefits everyone in the path of the streamflow. The center’s water supply forecasts empower states to take action to prevent flooding or prepare for drought. Some farmers look to the water supply forecast when deciding what crops to grow. It’s like playing chess with nature, and you can almost see nature’s next move. Read more »
Snowmelt on Mount Hood sends ample water down a stream in Oregon. NRCS photo.
April storms delivered a mix of rain and snow to the northern half of the West but didn’t provide much relief for the dry southern half, according to the latest USDA water supply forecast.
Washington, most of Idaho, Montana, Wyoming, and the northern parts of Colorado and Utah, are expected to have near normal or above normal water supplies, according to the forecasts from the Natural Resources Conservation Service’s National Water and Climate Center (NWCC). Streamflows that are far below normal are forecast for the southern parts of Oregon and Utah, southwestern Idaho, California, Arizona, New Mexico and western Nevada. Read more »