System Issues December 15th, 2017
Posted: December 15th, 2017
Posted: November 30th, 2017
If the ember downtime is successful, remaining clusters will have a similar downtime on December 21st.
Updated October 24th, 2017
Posted October 4th, 2017
Posted: August 24th, 2017
Tracking Pressure Features
By Alexander Jacques, MesoWest/SynopticLabs and Atmospheric Sciences
Center for High Performance Computing resources were used to model the progression of a mesoscale gravity wave generated by a large storm system on April 26–27, 2011.
A mesoscale gravity wave, generated by a large storm system in the southern United States, moved northward through the central United States causing short-term changes in surface wind speed and direction. This animation shows efforts to detect and evaluate the negative mesoscale surface pressure perturbation generated by this wave. Detected positive (red contours) and negative (blue contours) perturbations are determined from perturbation analysis grids, generated every 5 minutes, using USArray Transportable Array surface pressure observations (circle markers). Best-track paths for the perturbations are shown via the dotted trajectories. To identify physical phenomena associated with the perturbations, conventional radar imagery was also leveraged. It can be seen here that the detected feature migrates north away from the majority of the precipitation, which is often seen with mesoscale gravity wave features.