OKLAHOMA CITY, OKLAHOMA — Meteorologists monitoring weather patterns across Oklahoma, North Texas, and parts of Arkansas say the storm environment is evolving as a 700 mb shortwave disturbance moves through the region. While earlier expectations suggested storms might develop along a dryline, new analysis indicates the atmosphere is behaving differently, with mid-level forcing now playing the dominant role in storm development.
Satellite imagery and mesoscale weather analysis show cloud development increasing across central Oklahoma extending south toward the Dallas–Fort Worth region, while drier and more stable air persists farther west. Forecasters note that surface heating has weakened with time, which has reduced the chance of storms forming directly along the dryline. Instead, the focus has shifted to the advancing upper-level disturbance that could still spark storms overnight.
Meteorologists Identify 700 mb Shortwave as Primary Trigger
Weather analysts studying mesoscale analysis data and mid-level wind fields say the main driver for storm initiation appears to be a shortwave trough around the 700 millibar level, located over central Oklahoma. This atmospheric feature is creating lift across a more saturated air mass east of the dryline, helping storms form despite less favorable surface conditions.
The analysis maps highlight two distinct atmospheric zones across the Southern Plains. To the west of the shortwave axis, forecasters are seeing suppression and drier air, which limits thunderstorm development. Meanwhile, east of the axis, the atmosphere contains higher moisture and instability, allowing storms to organize as the disturbance moves through…