DES MOINES, Iowa — A Tornado Watch is in effect until 2 a.m. for much of Central, Western and Southern Iowa. Storms are firing just northwest of Des Moines. Storms will move into the Des Moines area about 7 p.m.. Severe weather including tornadoes, hail and damaging winds will all be possible with the next round of storms. Flash flooding is also a major concern late tonight as heavy rain moves across the same areas over and over again. A Flash Flood Watch will be in effect from 4 p.m. until Thursday morning.
Clearing in Western and Southwestern Iowa is allowing the atmosphere to heat quickly. Its a very unstable atmosphere with a warm front draped across the state. Strong low-level jet is feeding into the area and will help to strengthen the storms. The storms are elevated and need to lower and become more surface based to increase the risk of tornadoes. Once that happens, the storms will not only bring hail, strong winds, and the potential for tornadoes, but also very heavy rain that will lead to flash flooding as the ground is very saturated.
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