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(11:45AM - 8/21/2019) Several disturbances and a front moving through the region will aide in a severe t'storm threat across portions of Central and Southern Illinois, through tonight.
8/21/19 - This Afternoon-Tonight Forecast... Smaller disturbances and a front will be moving through the region today, with accompanying clusters of rain and t'storms are likely to push across much of the state. Some of this activity has moved into Western Illinois this morning and, will spread across much of the state during the rest of the afternoon and into tonight. An environment will be in place featuring moderate instability, high moisture and low shear. This will help support an isolated severe t'storm threat across much of Central and Southern Illinois, with damaging winds and large hail being the main threats. 8/20/19 - Tuesday Morning-Night Recap... A large complex of rain and t'storms pushed across much of the state, Tuesday morning through Tuesday evening. Isolated to widely scattered severe t'storms occurred with this activity, with damaging winds being the main threat that occurred. Below is the TAM severe t'storm forecast for this afternoon-tonight. 
JP
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(9:00PM - 8/20/2019) Several disturbances and a front moving through the region will aide in a severe t'storm threat across portions of Central and Southern Illinois, through Wednesday.
8/20/19 - Tonight's Forecast... The threat for rain, t'storms and severe t'storms has come to and end across the state. No additional activity is expected tonight. 8/21/19 - Wednesday Morning-night Forecast... Smaller disturbances and a front will be moving through the region on Wednesday, with accompanying clusters of rain and t'storms are likely to push across much of Central and Southern Illinois from mid-morning Wednesday through Wednesday night. An environment will be in place featuring moderate instability, high moisture and low shear. This will help support an isolated severe t'storm threat across much of Central and Southern Illinois, with damaging winds and large hail being the main threats. Should more concentrated areas of severe t'storms look possible, higher severe t'storm probabilities may be needed. Below is the TAM severe t'storm forecast for Wednesday morning-night. 
JP
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(8:00AM - 8/20/2019) Several disturbances and a front moving through the region will aide in a severe t'storm threat across portions of Central and Southern Illinois, for today through Wednesday.
8/20/19 - This Morning-Tonight Forecast... A complex of rain and t'storms that originated in Iowa overnight, has now pushed into Northwest and Western Illinois this morning. This complex has been borderline severe, with a few isolated severe reports. This complex has been elevated, thus preventing a more significant severe threat. A gradual weakening trend has been noted as well, and this trend is expected to continue as this complex pushes across much of the state the rest of this morning and afternoon. Some re-strengthening of this complex may try to occur across portions of Eastern and Southern Illinois during the afternoon...However, this potential is uncertain at this time, thus will not introduce higher severe t'storm probabilities for this area at this time. An environment will be in place featuring high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across much of the state, with damaging winds and large hail being the main threats. Wednesday's potential severe t'storm threat will be discussed in future updates. Below is the TAM severe t'storm forecast for this morning-tonight. 
JP
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(9:30PM - 8/19/2019) Several disturbances and a front moving through the region will aide in a severe t'storm threat across portions of Central and Southern Illinois, for Tuesday through Wednesday.
8/20/19 - Tuesday Morning-Night Forecast... A complex of rain and t'storms will be ongoing across Iowa early Tuesday morning, posing a severe t'storm threat. This complex is expected to push into Northwest and Western Illinois early to mid morning, in a gradual weakening phase. This activity will likely continue to gradually weaken, as it pushes southeastward across much of the state during the rest of the morning and afternoon. Some re-strengthening of this complex may try to occur across portions of Southern Illinois during the afternoon...However, this potential is uncertain at this time, thus will not introduce higher severe t'storm probabilities for this area at this time. An environment will be in place featuring high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across much of the state, with damaging winds and large hail being the main threats. Wednesday's potential severe t'storm threat will be discussed in future updates. Below is the TAM severe t'storm forecast for Tuesday morning-night. 
JP
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(10:30AM - 7/21/19) Multiple disturbances expected to move through the region will bring the chance for severe t'storms to portions of the state, through tonight.
7/21/19 - Sunday Morning-Night Forecast... Development of scattered showers and t'storms are expected across much of Central and Southern Illinois this morning into afternoon. This activity is then expected to move across these areas through tonight. The environment in place will feature high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across Central and Southern Illinois, with damaging winds and hail being the main threats. 7/20/19 - Saturday Morning-Night Recap... Clusters of showers and t'storms moved across portions of Northern and Central Illinois, Saturday afternoon into night. Isolated severe t'storms occurred, with damaging winds and hail being the main occurrences. Below is the TAM severe t'storm forecast for this morning-tonight. 
JP
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I always say weather is nothing but the planet's largest balancing act. 2019 has largely been a very wet, and frustrating year for Illinois. Many river residents and farmers have had to endure prolonged and in many cases, record flooding.
However, in a dramatic turn around, things have taken a turn for the drier...the much, much drier. Precipitation rates dramatically dropped across much of the state during July, which happens to be the fastest drying month of the year due to the peak summer sun. 
The drying has been most dramatic across parts of western and central Illinois. Good news, in part for flood ravaged areas, but now things are starting to turn around and become TOO dry. Lawns are beginning to brown, and some lakes are even starting to drop. We lose more water in July and August to evaporation than any other month, and most areas need about 1" of rain per week to keep with the rates.
Coming off a couple dry weeks, the pattern ahead appears to maintain the dry spell. Right now, the GFS is showing less than an inch of rain across most of the state. 
Coming off an already dry couple of weeks, it will do little to help.
Due to the this, the CPC (climate prediction center) has much of northern Illinois outlooked for potential drought conditions developing during the month of August. As of now, we're not seeing any reason to disagree with this. It's always feast or famine around here it seems. The drought monitor is updated once a week, and we'll be bringing each update as they are released! 
Like this article? Become an ISC patron and receive special benefits! visit. www.patreon.com/illinoisstormchasers to learn more!
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(10:30AM - 7/21/19) Multiple disturbances expected to move through the region will bring the chance for severe t'storms to portions of the state, through tonight.
7/21/19 - Sunday Morning-Night Forecast... Development of scattered showers and t'storms are expected across much of Central and Southern Illinois this morning into afternoon. This activity is then expected to move across these areas through tonight. The environment in place will feature high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across Central and Southern Illinois, with damaging winds and hail being the main threats. 7/20/19 - Saturday Morning-Night Recap... Clusters of showers and t'storms moved across portions of Northern and Central Illinois, Saturday afternoon into night. Isolated severe t'storms occurred, with damaging winds and hail being the main occurrences. Below is the TAM severe t'storm forecasts for this morning-tonight. 
JP
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(10:15AM - 7/21/19) A multi-day heat wave will continue to affect the state through today, with widespread hot and humid conditions are likely.
7/21/19 - Today/Tonight's Forecast... A cold front with showers and t'storm is currently located across portions of Central Illinois. The heat wave has ended for Northern and Western Illinois, however it will continue for one final day for Eastern and Southern Illinois. High temperatures today will likely reach the upper 80's to mid 90's across Eastern and Southern Illinois, with heat index readings ranging from 95-115. The aforementioned cold front with showers and t'storms, will push southward across the rest of the state this afternoon into tonight, ending the heat wave for the rest of the state
7/17/19 - Wednesday/Night Recap...
High temperatures on Wednesday were in the upper 80's to mid 90's across much of the state, with heat indices between 90-105. Low temperatures Wednesday night were in the upper 60's to mid 70's. 7/18/19 - Thursday/Night Recap... High temperatures on Thursday were in the upper 80's to mid 90's across much of the state, with heat indices between 95-110. Low temperatures Thursday night were in the mid 70's to low 80's across much of the state. 7/19/19 - Friday/Night Recap... High temperatures on Friday were in the low 90's to upper 90's across much of the state, with heat indices between 100-120. Low temperatures Friday night were in the mid 70's to low 80's across much of the state. 7/20/19 - Saturday/Night Recap... High temperatures on Saturday were in the low 90's to upper 90's across much of the state, with heat indices between 100-120. Low temperatures Saturday night were in the upper 60's to upper 70's across much of the state. Below is the TAM heat and humidity forecast through today. 
JP
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(11:45PM - 7/20/19) Multiple disturbances expected to move through the region will bring the chance for severe t'storms to portions of the state through Sunday night.
7/20/19 - Tonight's Forecast... Isolated to scattered showers and t'storms will be possible tonight for portions of Northern and Central Illinois. 7/21/19 - Sunday Morning-Night Forecast... Isolated to scattered showers and t'storms may be ongoing Saturday morning across portions of Northern and Central Illinois. Additional development of scattered showers and t'storms will occur across Central and Southern Illinois during the afternoon, with this activity expected to persist through Sunday night. The environment in place will feature high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across Central and Southern Illinois, with damaging winds and hail being the main threats. An upgrade in severe t'storm probabilities may be needed in future updates. Below is the TAM severe t'storm forecasts for Sunday morning-night. 
JP
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(11:30PM - 7/20/19) A multi-day heat wave will continue to affect the state through Sunday, with widespread hot and humid conditions are likely.
7/21/19 - Sunday/Night Forecast... A cold front with showers and t'storm will be ongoing across portions of Central Illinois Sunday morning. The heat wave will have ended for Northern and portions of Central Illinois, however it will continue for one final day for other portions of Central and all of Southern Illinois. High temperatures on Sunday will likely reach the upper 80's to mid 90's across portions of Central and all of Southern Illinois, with heat index readings ranging from 95-115.
7/17/19 - Wednesday/Night Recap...
High temperatures on Wednesday were in the upper 80's to mid 90's across much of the state, with heat indices between 90-105. Low temperatures Wednesday night were in the upper 60's to mid 70's. 7/18/19 - Thursday/Night Recap... High temperatures on Thursday were in the upper 80's to mid 90's across much of the state, with heat indices between 95-110. Low temperatures Thursday night were in the mid 70's to low 80's across much of the state. 7/19/19 - Friday/Night Recap... High temperatures on Friday were in the low 90's to upper 90's across much of the state, with heat indices between 100-120. Low temperatures Friday night were in the mid 70's to low 80's across much of the state. Below is the TAM heat and humidity forecast through Sunday. 
JP
Please consider becoming a Patreon as a way to say thanks and support us for what we do! www.patreon.com/user?u=16598980 To receive text alerts via our in-telligent groups text ISC to 900900 |
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