7:10 PM CDT | May 1, 2019
I am short on time right now, so let me get straight to the point. There are two Severe Thunderstorm Watches right now. The first is across parts of Northwest/western North Texas. This is in effect until 8:00 PM. Several of these counties will likely be extended beyond the time of expiration. The second watch is farther east and generally along/north of the I-20/30 corridors. This one is in effect until 1:00 AM and includes the entire Dallas-Fort Worth metroplex. You can see the watches below...
There are two distinct MCV's (meso-convective vortices) indicated on radar. You can scroll down a 6:59 PM radar image, showing these features. Meso-convective vortices are storm-generated areas of low pressure. Lift is increased near these features, and if environmental conditions are supportive (like right now), they will aid in the development of additional thunderstorms. The first of these is located JUST north of the Red River, close to Ardmore. It is tracking eastward. The second vortex is located west of Jacksboro, and it is tracking eastward as well. There have been some attempts at storm development across North Central Texas; however, none of this activity has become sustained thus far. This places the metroplex in an interesting spot. The activity north of the immediate metroplex will probably be slow to build farther south in the near term. More widespread thunderstorm development is likely as the MCV west of Jacksboro gets closer to the I-35 corridor later this evening. In short, I still anticipate strong to severe storms in the metroplex, but it will be later this evening and into the overnight hours.
Often times, the severe risk is much lower after dark; however, the atmosphere along the I-20 corridor of North Texas remains very unstable and has not yet been overturned. Damaging Winds and Large Hail to the size of Ping Pong Balls will be possible into the overnight hours, along with the possibility for a couple Tornadoes. The latter risk will be increased near outflow boundaries and the meso-convective vortices. This is because low-level shear is locally enhanced by both features.
Remember, a watch means that conditions are favorable for the development of severe weather. A warning means that severe weather is imminent or is already occurring and to seek shelter immediately. For the latest local weather information for your area, please visit the National Weather Service website. You can also find Texas Storm Watch on Facebook, where I will post a couple more updates tonight. To help make sure you do not miss any updates, LIKE the Facebook page and join the Facebook group.