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It will be mostly cloudy tonight with isolated showers possible late along and east of the I-35 corridor. Lows will be in the mid 60s to lower 70s. Winds will be southeast at 10 to 20 mph with some gusts up to 30 mph possible.
We'll have mostly cloudy skies Saturday. Some showers are possible in the morning southeast of a Lampasas to Paris line. Isolated to scattered showers and thunderstorms are possible during the afternoon. IF the cap breaks, a few storms could become severe producing hail larger than 1 inch in diameter and wind gusts over 60 mph. Otherwise, cloud to ground lightning will accompany any storms that develop.
The strong cold front will sweep through the southeastern parts of the region by mid morning Sunday. The chances of showers and thunderstorms will be ending from northwest to southeast during the morning across most of North and Central Texas but some low chances will linger into early afternoon east of a Bonham to Temple line. Severe thunderstorms will be possible ahead of the front. It will be breezy behind the front with north winds 15 to 25 mph. Highs will be in the 70s.

 
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Automatically generated image showing areas of storm relative helicity.

 

Thumbnail of an automatically generated image showing areas of storm relative helicity. Thumbnail of an automatically generated image showing areas of storm relative helicity. Thumbnail of an automatically generated image showing areas of storm relative helicity.
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Helicity (0-1 Km) 

This is the 0-1 km (approximately 0-3,000 Ft. AGL) storm relative helicity which is a measure of the amount of low level wind shear available for tornadogenesis. This is not a good indicator of supercell potential which is related more strongly to 0-6 KM vertical shear. Values greater than 100 m**2/s**2, do suggest an increased threat of tornadoes provided a supercell is present.  Larger values are generally better, but there are no clear "boundaries" between non-tornadic and significant tornadic supercells.

The arrows indicate the approximate right supercell storm motion using the Bunkers technique.

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