The latest on tomorrow’s severe weather threat

Damaging winds and a few strong tornadoes may be possible
Published: Mar. 30, 2023 at 4:10 PM CDT
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PEORIA (25News Now) - Our First Alert Weather Day remains in effect for tomorrow evening for the potential for severe thunderstorms capable of producing high, damaging winds, large hail and a few tornadoes. We are also continuing to watch out for possible storms tonight and tomorrow afternoon, although these will likely have a lower severe weather risk.

However, tomorrow evening continues to be our main severe weather threat. The likelihood and intensity of storms has increased today compared to the last couple of days.

A First Alert Weather Day remains in effect tomorrow for the potential for severe weather.
A First Alert Weather Day remains in effect tomorrow for the potential for severe weather.(25 News)
High winds continue to be our main threat tomorrow, but a few strong tornadoes and large hail...
High winds continue to be our main threat tomorrow, but a few strong tornadoes and large hail will also be possible.(25 News)

Tonight and Tomorrow Morning:

Isolated to scattered thunderstorms will be possible tonight, beginning after 9 or 10 PM through early tomorrow morning. While the risk for widespread strong or severe storms is low, a few may become strong or even briefly severe at times. If this happens, large hail and heavy rain would be the main risks.

A few storms will be possible tonight capable of producing hail and locally heavy rain.
A few storms will be possible tonight capable of producing hail and locally heavy rain.(25 News)

Tomorrow Afternoon:

We’re keeping a close eye on a conditional risk for a few thunderstorms to develop tomorrow afternoon, mainly during the early part of the afternoon. The atmosphere looks capped tomorrow afternoon, which should help limit our chances for thunderstorm development.

However, if we can clear out and/or become unstable enough, we may see a few storms break through that cap. The concern is that these storms would likely be discrete and could produce a tornado. Large hail is also possible within any discrete cells, should they form.

It’s not a guarantee that storms will form tomorrow afternoon, but if they do not everyone will see one.

Tomorrow Evening and Early Tomorrow Night:

Our best chance for severe storms tomorrow will come tomorrow evening between 5-8 PM as a cold front moves through Central Illinois. It’s important to note that the graphic below shows the times for the best chance for severe weather, but it will not storm during the entire two hour window.

Storms will move quickly across Central Illinois tomorrow evening from west to east, mainly...
Storms will move quickly across Central Illinois tomorrow evening from west to east, mainly between 5-8 PM.(25 News)

Many of the high resolution forecast models today have been suggesting that storms will remain discrete for longer, meaning that we will see an increased risk for tornadoes and large hail. This is especially true for areas near and west of the Illinois River.

There is also a chance for a few strong tornadoes. Please make sure that you are staying weather aware throughout the day, but especially tomorrow evening.

If/when storms begin to congeal into a line instead of individual storms, which could happen after they move east of the Illinois River, our severe weather risk will then shift to more of a wind threat. Winds upward of 70+ mph will be the main concern, but a tornado or two may still be possible.

Tomorrow Night and Saturday Morning:

Strong winds will continue behind the cold front tomorrow night and into Saturday morning. Gusts could be as high as 50 mph.

Impacts:

With high winds and tornadoes possible, we’re expecting the possibility of power outages and wind damage. Heavy rain will be possible at times, but due to the fast movement of these storms our flooding threat should remain low.

Staying Prepared:

You still have some time to prepare for these storms, so make sure that you’re ready!

The most important thing for tomorrow is having ways to get any warnings that may be issued. You will need a NOAA Weather Radio or our 25News First Alert Weather app. Ideally, it is best to have both. If you haven’t downloaded our 25News First Alert Weather app, you can do that here!

Make sure that you know and have practiced your severe weather safety plan and have restocked your emergency supply kit.

We’ll continue to bring you the latest weather information on-air, online and on social media.