SHOWERS TO INCREASE THIS WEEKEND
Good Thursday evening everyone! Dry time will hold for most of us this evening – the exception south-central Indiana. There is some instability available over the next few hours for a shower or two to develop along with an isolated t-storm.
Not nearly as energized as Wednesday evening but any storm that does develop could bring some brief, heavy rainfall.
The rain threat lingers and increases as we enter the weekend (go figure). Only four weekends this entire year have been rain or snow free officially for Indianapolis.
An upper-air low, a low pressure in the upper layers of the atmosphere, loses its main steering winds and drifts north, slowly with time. This feature will aid/trigger showers that increase in number each day - peaking on Sunday.
No all-day rains are coming, but showers will peak in coverage Sunday at nearly 60% of the area. Five day rain total averages are posted below and will vary widely especially in and around thunderstorms where amounts will be locally higher.
It is important to stress again, mainly rain-free hours are coming Friday and Saturday. Sunday they will be available but the gaps in-between may be much shorter.