Pay attention to developing storms this afternoon. It looks like there will be a window for the development of supercell thunderstorms early in the evening with the storms then progressing to more of a squall line event later.
4:30pm update – The conditions are becoming favorable for the initiation of thunderstorms over the next couple of hours.
5:30pm update – Cap is currently holding in place preventing storm initiation. NWS is expecting this cap to erode in the next hour or so and this will allow storms to develop in the area.
5:55pm update – A Tornado Watch has been issued for Jefferson County until 1:00am.
Ozawkie Kansas was hit by microburst at 1:06 pm Friday August 20th. Estimated winds speeds from the event were between 75-80 mph. Numerous trees were damaged by the storm along with many homes in the town.
Thunderstorms are developing near a frontal boundary West of Jefferson County. A watch may be issued shortly.
Jefferson County has been placed in a severe thunderstorm watch until 11pm. There is a line of storms moving towards the County that has produced 60-90 mph winds. Pay very close attention to the weather for the next few hours.
The severe thunderstorm warning for Grantville and Perry has been canceled.
A severe thunderstorm warning has been issue for Grantville and Perry in SW Jefferson County.
We will need to keep an eye on these rapidly developing storm cells. Microbursts will be the primary hazard.
Perry is still releasing water. In addition The Corps of Engineers will increase the release from Tuttle Creek this week. This will raise the Kansas River an additional 2 feet this week.
At the current and projected release rate it looks like most of the facilities will be available at Perry Lake for Labor Day weekend.
Perry lake is once again holding water due to flooding issues downstream.
The Kansas City District, Corps of Engineers has authorized the Perry Lake Project Manager to begin releasing significant amounts of water from the reservoir. The authorized rate of release is 8000 cubic feet per second. At this rate the Lake is expected to drop around 10″ per day. In addition, this release combined with the releases from Milford and Tuttle Creek will cause the Kansas River to remain “bank full” for the foreseeable future.