SEVERE STORMS POSSIBLE ON DAD'S DAY....
Severe weather season has been rather slow this year... June is typically the peak month for severe weather season, but many parts of the Midwest have hardly had rain this month. But the tides have started to turn...
On Friday night severe storms erupted in extreme southern Iowa into Illinois. Here's a look at the reports:
Some large hail fell in Iowa. Here's a photo of ping pong size hail between Keota and Wellman, via Tyler Romoser:
In Illinois one tornado was confirmed in Knox County (an EF-1) and there was also damage from straight line winds near Galesburg. Here's a look at a photo of damage south of Galesburg via Kholby Martin:
Now there's another chance for more severe weather in the same areas on Sunday. Here's the latest outlook from the Storm Prediction Center:
A warm front will move into the area in the morning Sunday, then a cold front will move in. There will be a few rounds of storms and some may be strong to severe. Strong winds and large hail will be main threats with the potential for some tornadoes as well.
There will be showers and thunderstorms widespread in the morning:
Depending on how long the rain lingers in the morning will affect how the severe threat evolves in the afternoon and evening. Ahead of the cold front it appears the atmosphere destabilizes quickly on Sunday afternoon:
However if the rain or clouds linger longer than instability will be lower. Here's a look at the hi-resolution rapid refresh model (HRRR) showing thunderstorms developing in eastern Iowa ahead of a line that moves through Iowa and Illinois:
If there are individual cells that form ahead of the line then there would be a brief tornado risk. Then there will be a line of storms that forms and will lead to move of a wind/hail threat.
There could be some areas of heavy rain with some of these thunderstorms too. The severe storms won't necessarily be widespread, but rain will be! This will be a great chance for a drink of water in Iowa and Illinos.