Heavy rains will bring potential flash flooding to portions of the lower Mississippi Valley early this weekend. Across the Pacific Northwest, an atmospheric river event is set to arrive by Sunday, bringing heavy coastal rains and high elevation snowfall. Above average temperatures continue for much of the country through the weekend. Read More >
Fort Worth/Dallas, TX
Weather Forecast Office
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4 Panel Display | Animated Loop 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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Fort Worth/Dallas, TX
3401 Northern Cross Blvd.
Fort Worth, TX 76137
817.429.2631
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