A line of strong to severe storms coming from Missouri will be moving into our area this evening and tonight. These storms will weaken as they move to the east, but likely not until they reach our western counties. It is due to this that we still have up to an Enhanced Risk of severe weather in our western counties and also a Tornado Watch for our southwestern corner until 10:00 PM.
In addition to the severe side of this event, there will also be a ton of rain with these storms. Due to the potential for 1-2″ tonight under torrential downpours, there is a Flash Flood Watch out for the western half of the viewing area until 1:00 AM.
Storms won’t arrive until tonight. Expect around 8:00 PM for these storms to make it to the Illinois River and then continue on their easterly track, weakening as they do so. Refer to the below graphics for an example of the timing these storms take.
When the storms make a line like this, we usually see strong winds as the main threat. We will need to be careful of a smaller tornado threat as spinups are possible with little indentations within the line of storms. Again, these storms are weakening as they move east through our area.
With the storms in the forecast tonight, lows will be around 56 under cloudy skies. Winds will be strong out of the southeast at 20 to 40 mph.
Wednesday morning will see the storms move out by 7:00 AM. The rest of the day is actually going to be a nice day with partly cloudy skies and highs near 84. Winds will be from the south at 10 to 25 mph.
Wednesday night will have another round of showers and storms in late after midnight. Lows will be around 68 with winds from the south at 5 to 15 mph.