Sunday Night Thunderstorms

Thunderstorms have developed along two cold fronts that cover portions of the Dakotas and Nebraska, a weak low pressure system, outflow boundary, and warm front also exist with this complex system just to the west of the state. With the thunderstorms that have developed in South Dakota, several severe thunderstorm warnings have been issued. This has prompted the Storm Prediction Center to issue a Severe Thunderstorm Watch for eastern South Dakota, and eastern Nebraska. This severe thunderstorm watch is in effect from 5 PM until 11 PM tonight, thunderstorms should continue to develop along both the leading weak cold front, and the secondary cold front. The front and thunderstorms should push east/southeast into Minnesota and Iowa during the early overnight hours. You can view some of the latest radar images that I've viewing on the Iowa Chaser Homepage.

The severe weather risk over Iowa is fairly low, as with sunset it is expected that the storms should weaken below severe limits. Some gusty winds, and small hail, however, cannot be completely be ruled out over western Iowa. The thunderstorms may continue into central Iowa during the overnight hours, and over eastern Iowa through mid-afternoon on Monday. Lows overnight tonight will range from the mid 50s in southeast Iowa, to the lower 50s over parts of northwest Iowa. The extreme northwest corner of the state may be behind the cold front throughout the night, leading to lows as cool as the mid 40s. Highs tomorrow will show the cooler air, although only a degree or two cooler than today. Near 70 along the northern borders of the state, to the lower 70s across the southern third of the state.

A cooler and drier week should be ahead for the remainder of the week across the state. Long range weather models are however hinting at some October excitement beginning as early next weekend...