Good evening from the weather center. The first of two cold fronts before Christmas has passed. Did you hear the thunder late last night? It is worth pointing out that there is a wide temperature variation across the area tonight. The front has stalled, temporarily.
This front will be relentless, bringing a challenging forecast for the next several days. Here's how we sort things out tonight.
A Spring-like storm system will send the same front north overnight. Temperatures will rise to near 60° by daybreak Wednesday. A strong southerly wind will develop as a powerful storm deepens out west.
Already nearing record warmth (64° set 1933) by early Wednesday and possibly breaking it by noon, a batch of thunderstorms could be on the move entering western Indiana by noon. Theses storm have the potential to bring strong/damaging winds with them. It is possible we will be under a severe watch box Wednesday.
It's back. The approaching cold front returns and could bring a second round of strong to severe storms after sunset with a sharp temperature drop to follow by Thursday morning.
A large area has been outlined by the Storm Prediction Center for severe storms Wednesday, including a large portion of Indiana. Damaging winds are the likely threat locally, however a tornado threat does loom. Winds changing direction with height rapidly could spin up a tornado or two especially over southwest Indiana.
I'm posting the NWS SREF computer model's significant tornado ingredients that favors a very strong probability of tornadoes southwest. Stay tuned and stay alert. Plan for a watch box to be issued Wednesday and review your severe weather plans. Stay up to date. I will have updates on FOX59 later tonight.
SPRING LIKE FLOODING POSSIBLE
The front will wobble north and south through the holiday weekend bringing rising and falling temperatures over a 7 day stretch. The front will be the focus for occasional rain and thunderstorms. Rainfall will be plentiful - perhaps as much as 3" to 6" down by Monday evening.
Area creeks, streams and rivers are likely in flood by early next week.