Tue-Sat, June 25-July 6th Severe T'Storm Threat Update #19

(11:15AM - 7/4/19) Several smaller disturbances moving through the region will bring the chance for severe t'storms to portions of the state through Saturday July 6th.

July 4th - Thursday Morning-Night Forecast...
Isolated showers and t'storms have been ongoing this morning across portions of Central Illinois. Regeneration and/or development of scattered showers and t'storms will occur during the afternoon across Iowa, Missouri and a good portion of Illinois. This activity will then push eastward across portions of the state into tonight. An environment characterized by high instability, high moisture and low shear will be in place. This will help support an isolated severe t’storm threat across portions of Northern and Central Illinois, with damaging wind and large hail being the main threats.

July 5th - Friday Morning-Night Forecast...
An isolated shower or t'storm will be possible across portions of the state Friday morning. Regeneration and/or development of scattered showers and t'storms will occur during the afternoon across states to the west and across Illinois. This activity will then push eastward across the state into Friday night. An environment characterized by high instability, high moisture and low shear will be in place. This will aide in an isolated severe t’storm threat across portions of Northern and Central Illinois, with damaging wind and large hail being the main threats.

June 25th - Tuesday Morning-Night Recap...
Scattered showers and t'storms developed and pushed across portions of Northern Illinois Tuesday afternoon. Some of these t'storms were severe, with wind and hail being the main threats that occurred. Tuesday evening into Tuesday night, a complex of rain and t'storms that developed across Southern Iowa pushed across Western and Central Illinois. Severe t'storms were widespread with this activity across Western Illinois, waning with time across Central Illinois. Damaging winds and large hail occurred with this activity.

June 26th - Wednesday Morning-Night Recap...
Scattered showers and t'storms developed across Western and Southwest Illinois Wednesday afternoon. This activity grew upscale into a large complex, which pushed across portions of Central and much of Southern Illinois from the afternoon into night. Isolated to widely scattered severe t'storms occurred with this activity, producing damaging winds and large hail. Further north, scattered showers and t'storms developed across portions of Northern Illinois late in the afternoon and evening. This activity spread across portions of Northern Illinois into the night. Isolated to widely scattered t'storms occurred with this activity, producing damaging winds and large hail.

​June 27th - Thursday Morning-Thursday Night...
The southern end of a complex of rain and t'storms pushed across portions of Northern Illinois Thursday afternoon and evening. A few isolated t'storms were severe, producing damaging winds and large hail.

June 28th - Friday Morning-Friday Night Recap…
A weakening complex of rain and t'storms pushed across portions of Northern Illinois Friday morning. The western end of this complex regenerated, and moved across portions of Central and Southern Illinois during the afternoon and evening. Widely scattered severe t'storms occurred with this activity, producing damaging winds and large hail.

June 29th - Saturday Morning-Saturday Night Recap...
​Scattered t'storms developed and moved across portions of Northern and Central Illinois during the afternoon and evening. Isolated t'storms were severe, producing damaging wind and large hail.

​June 30th - Sunday Morning-Sunday Night Recap...
Two complexes of rain and severe t’storms spread across much of Northern and Central Illinois, Sunday afternoon into evening. The first complex pushed across Northern and Eastern Illinois, bringing widespread damaging winds to the area. The second complex pushed across Northwest and Western Illinois, also bringing widespread damaging winds to the area.

July 1st - Monday Morning-Night Recap...
Weakening areas of scattered showers and t'storms pushed across portions of the state during the morning into early afternoon. Additional isolated showers and t'storms developed and pushed across portions of Northern Illinois during the afternoon.

July 2nd - Tuesday Morning-Night Recap...
Scattered showers and t'storms developed and moved across much of Northern and portions of Central Illinois, Tuesday afternoon into night. Isolated t'storms were severe, with damaging winds and large hail. Isolated showers and t'storms occurred across Southern Illinois during the afternoon and evening.

July 3rd - Wednesday Morning-Night Recap...
Scattered showers and t'storms developed across a good portion of the state Wednesday afternoon. This activity then meandered across the state into Wednesday night. Isolated t'storms were severe, with damaging winds and large hail the main threats that occurred.

A severe t'storm threat will likely continue into Saturday July 6th for portions of the state. Additional days will be discussed further in upcoming updates as the time approaches.

Below is the updated TAM severe t’storm forecast for this morning-tonight and Friday morning-night.​​​​​​​​​

​JP

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