Stand aside polar vortex! The PNA may be the most important atmospheric circulation pattern you've never heard of.
Weak El Nino continued into April. Our blogger discusses the "here & now" and the forecast for spring and summer.
How did the 2018-2019 Winter outlook do? Tom Di Liberto takes you through what happened in this week's ENSO blog.
El Niño conditions continued into March. What do forecasters think is next?
Many networks across the U.S. collect air temperature and precipitation observations we use to characterize these events. But only NCEI's U.S. Climate Reference Network (USCRN) was designed with lab-calibrated sensors--in triplicate--to ensure a high-quality, continuous record of U.S. climate.
If the recent weather whiplash has left you wondering how U.S. winters are changing over time, NOAA climate maps tell the story.
Tree rings can reveal the age of wood used to make human artifacts from famous violins to the cliff ruins of Mesa Verde, and also tell us about the climate conditions that prevailed when those trees were alive.
What is the latest and greatest in ENSO science? This blogger travels to Guayaquil, Ecuador to find out.
New research suggests the climate change could affect how ENSO impacts temperature and wildfires. Read on to learn what that means.
Forecasters are favoring the onset of El Niño conditions this fall. Our blogger gives you the details!