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Two areas of thunderstorms are possible on Saturday. The first will be in the afternoon and evening along a dryline if the cap weakens sufficiently for storms to develop. If storms are able to form, they would likely be severe with the potential for large hail and damaging winds. The second area to watch will be a cluster of storms developing in Oklahoma that could move southward into North Texas later Saturday night. These storms could also be severe with damaging winds possible.
Scattered thunderstorms will be possible on Sunday along a slow- moving cold front. A few strong or severe storms will be possible, especially across Central Texas during the afternoon hours. The day is not expected to be a washout as coverage of storms is only expected to be around 30-50%.
Hot high temperatures and humid conditions will come together starting Friday leading to heat index values exceeding the 100 degree mark in many locations across North and Central Texas. Given the relatively cool days we had earlier this week, this will be a stark change coming for today and Saturday. Make sure to drink plenty of water or water-based drinks, take frequent breaks in the shade or indoors, and NEVER leave children or pets alone in vehicles, even for a short period of time as it can be fatal!
With the first extended hot spell expected Friday and Saturday of the last weekend in May, a few rules of thumb to think about when heading out with children in vehicles. Never leave a child, pet, or even an adult in a hot vehicle for any extended period of time, as it can be fatal!

 
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Experimental Convective Parameters For North Texas

The National Weather Service in Fort Worth is now offering Experimental Convective Parameters on this website!

The analysis is computed using surface observation data and the latest RUC model for all upper level data.  This is different from the SPC mesoanalysis web page, because no model analysis is used for the surface fields.  This means our analysis is heavily weighted to the latest surface observation. Thus, some small "bulls-eye" type areas may occur if a surface observation is outlying or incorrect.  Bad observations are periodically quality controlled by forecasters and removed.  The advantage to this technique is that our convective parameters will have a higher resolution and be capable of rapid adjustments if the atmosphere is rapidly changing.

The parameters are generated hourly, with the generation process starting around 15 minutes past the hour. The images should be available by 20 past each hour.

We are currently producing the following images: