Bookmark and Share
Converging Air Masses Makes for a Rough Day in the Central Plains
Related                                   View Slideshow
 Suomi NPP Captures Wildfire Smoke over Russia
Heat Dome Expected to Bake the United States
Hurricane Celia, Tropical Storm Darby in the Eastern Pacific Ocean
Ocean Temperature Departure, June 13 - 19, 2016
May 20, 2013
Converging Air Masses Makes for a Rough Day in the Central Plains

Cold, dry air sweeping down from Canada mixing with warm, moist air from the Gulf of Mexico and Pacific Ocean are merging in the U.S. Plains today, creating conditions for some very turbulent weather. A tornado outbreak today in the early morning hours caused destruction in Kansas and Oklahoma. This image shows the air temperature at 40,000 Pascals (about 23,000 feet high in the atmosphere) using data outputs from the NOAA North America Model for 2100z on May 20, 2013, combined with an overlay of the winds at the same elevation. Tornadoes typically occur at the convergence of these two different air masses. A distinct boundary of "cold meeting warm" is visible in this temperature data, extending from Texas into Illinois.

Referral:Latest updates from the NOAA Storm Prediction Center
Terms of Use:Please credit NOAA
Keywords:NAM, Severe Weather, 2013.05.20 logo
NOAA logo
Website Owner: NOAA Environmental Visualization Lab Contact Us