WASHINGTON — As winter storms begin sweeping across the nation, the National Weather Service is reminding residents that accurate snowfall measurements are more than just a curiosity — they’re critical data that help meteorologists verify forecasts and improve future predictions.
The agency has outlined six simple steps that anyone can follow to measure snow accurately and safely.
First, gather basic supplies: a ruler or yardstick, a flat white board about 2 feet square, and a small flag or marker so the location can be easily found after snow begins accumulating.
Next, select an open, level area away from buildings, trees, and fences to avoid drifting or blocked snow. The site should be somewhat sheltered from the wind but not covered by overhangs or branches.
Before snow starts falling, set the board on the ground and mark it with the flag. During the storm, measure snow depth to the nearest tenth of an inch, record the total, then wipe the board clean and reset it for the next observation.
Measurements should be taken once daily at the same time, typically in the morning, or as soon as the snow stops falling. Delaying measurements can lead to lower totals due to melting or settling.
After recording the final measurement, residents are encouraged to report their results to their local National Weather Service office at weather.gov, or by tagging the agency on social media.
Officials say these community reports are vital for improving snowfall maps, refining forecasts, and documenting regional winter impacts.
“Every accurate observation helps,” the agency said in a statement. “Your report could make a real difference.”
