As expected and forecast last week, temperatures surged Tuesday well into the 70s on southwest winds. This is only the sixth 70-degree day of 2020. The average to-date is 12. The preliminary high of 76° is the warmest since we reached 79° on April 8, 20 days ago.
RAIN CHANCES RISE
A warm and breezy evening is underway, but showers and storms are blooming in a long line from Illinois to Arkansas. This line will progress east this evening and is forecast to reach western Indiana before 11 p.m. The storms will begin to weaken as they move further east after 12 a.m.
A new wave of showers and a few thunderstorms are likely again before sunrise and will spread east before noon Wednesday ahead of a cold front.
The rain will not fall continuously Wednesday. A gap or wedge of dry air and dry time is likely as a low pressure (storm center) passes overhead by midday. Behind the passing low, new showers are to develop along with gusty northwest winds and colder temperatures settling in by nightfall.
The bulk of the rain will fall in western Indiana with amounts in excess of 1″ likely. Locally, higher totals are likely in and around thunderstorms. The rain will linger as scattered showers into Thursday with a chilly northwest breeze.
April will close March-like with temperatures only in the mid/upper 50s. This could be the coldest close to an April in 15 years. April 2005 ended with a high of only 57-degrees.