The yellow area on the top graphic represents the chance for severe weather this Halloween. As the surface low over the plains strengthens, it is pulling warm moist air from the gulf, thus giving us light to moderate southerly winds. This is fueling our storms today and will do so as well tomorrow. There will be plenty of wind shear tomorrow, which is healthy for severe storm development. However we want it to rain more tonight because the more it rains, the weaker overall instability will be. This will help impede our chances for severe weather. Strong winds, large hail, or an isolated tornado can't be discounted though.
The front is expected to arrive as early as tomorrow afternoon or as late as the evening. The earlier it comes, the better chance we have of skies clearing for trick or treating, but don't hold your breath. Expect to be wet tomorrow and stay updated with the First Alert Storm Team for your Halloween forecast. Stay safe!