GLM first identified developing storm in WI

1923Z: Weak storms continue to develop across MN & WI in the absence of any major forcing feature & marginal instability. While we're acting as WFO DLH I noticed an area of increasing GLM fields in central WI shortly before 1900Z where otherwise no other convection was ongoing. While there is an 8 minute gap in the 1-minute satellite data from 1858-1906Z the IR values really didn't begin to pique my interest until 1910-1915Z. Also, a noticeable increasing lightning trend with ENTLN data wasn't really noticed until 1905-1910Z as well so GLM was able to capture the initial electrification of this storm with few minutes extra lead time. On a day like today when monitoring areas of cumulus for the first convective echoes to develop, GLM (especially GLM total energy) was especially useful.

Peter Sunday