Outlook to July 4June 17th, 2014 at 11:23 pm by Chad Evans under Chad's WLFI Weather Blog
Storms are quickly blowing up in eastern Iowa/far northern Illinois/southern Wisconsin.
Severe T’Storm Watch just went up for eastern Iowa/northern Illinos/southern Wisconsin/northwest Indiana. Watch goes right to the Kankakee River.
Current discrete storms will tend to gell into a cluster of storms with a wind threat. This could affect some areas north of U.S. 24 late tonight-early Thursday morning.
Once any storms exit, its outflow boundary will lay across the area. We will be quite capped. However, given high instability & decent shear, any storm that can pop though the lid could easily go severe with wind/hail.
Some models are indicating that a bow of severe storms MAY form northwest of our area in the late afternoon & head for our area. That said, if this can indeed form, it would affect part of/all of the viewing area in the evening, followed by a more tranquil night. Highs of 90-93 look good with heat indices as high as 100 with south to southwest winds at 10-20 mph (not as windy as Tuesday).
As for Thursday, at least scattered storms are possible. The same thing will hold true for Friday, Saturday & Sunday. Any of the scattered storms that can organized could produce some severe weather (wind, some hail) in or near the viewing area. Highs will be in the warm, humid upper 80s to around 90 with lows around 70.
The “Ring of Fire” will shift to the southwest away from the area Monday-Tuesday with sun & highs in the 80s with lows near 60. The humidity will be lower, too.
Storms may return to the forecast next Wednesday-Thursday with muggy dew points & highs in the upper 80s.
A period of below-normal temperatures (normal is 85/63) is possible June 27-29 with lows of 50-55 with highs in the 70s to near 80.
JUNE 30-JULY 4………..
However, June 30-July 4, temperatures generally look above normal (normal is 85/63) with temperatures climbing back to around 90.
Overall, rainfall looks above normal June 26-July 4 (normal is 1.26″).