 Rainfall totals from Friday AM-Saturday AM. (Click)
(11:55AM - 9/28/19) The wet pattern that has been in place will continue, with another storm system expected to bring heavy rainfall and flooding concerns to portions of the state, through Sunday morning.
A storm system pushing through the region will bring multiple rounds of rain and t'storms to portions of the state, through Sunday morning. An initial round of rain and t'storms pushed across much of Northern and portions of Central Illinois Friday morning through Friday afternoon. Widespread rainfall totals of 0.50-2.00" occurred with this activity across the aforementioned areas, with an isolated corridor of 3-7" totals having occurred along a Peoria to Pontiac axis. A second round of rain and t'storms moved across much of Northern and Central Illinois Friday evening into early this morning. Widespread rainfall totals of 0.50-2.00" occurred with this round of activity, with an isolated corridor of 3-6" totals having occurred for some areas. Combined rainfall totals from the first two rounds of activity Friday morning through Saturday morning were widespread 1-4" across much of Northern and Central Illinois, with an axis of 4-10" totals from the Western Illinois/Iowa border area eastward to the Illinois/Northwest Indiana border area. A third and final round of rain and t'storms will be possible Saturday night through Sunday afternoon, once again across much Northern and portions of Central Illinois. Rainfall totals with this round should range from 0.25-2.00", with isolated higher amounts possible.
The repeated rounds of rain and t'storms over the same areas, along with expected training, will allow for widespread rainfall totals of upwards of 1-3" across much of Northern and portions of Central Illinois during the aforementioned time-frame. Within this main axis, a corridor of 5-11" rainfall totals are expected, with isolated higher amounts possible. Given the wet pattern that has been in place the past several weeks, along with the expected heavy rainfall, low to moderate flood potential will exist across portions of Northern and Central Illinois...with an axis of major flood potential
Below is the TAM flood forecast through Sunday afternoon. 
JP
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(11:30PM - 9/27/19) A brief short term update regarding the ongoing heavy rain and flood threat across portions of Northern and Central Illinois... Major flooding is ongoing across portions of the aforementioned areas at this time. Since this morning, upwards of 4-9" of rain has fallen in an axis from Western Illinois/Iowa border area on east to the Illinois/Northwest Indiana border area. Widespread and significant areal, road and home flooding has been occurring across these areas...with travel disruption, road closures and water rescues having occurred. Travel is discouraged across these areas and precautions should be taken for ongoing and/or impending flooding issues.
Additional rain and t'storms will be possible across this axis for the next several hours, which could potential drop another 0.50-2.50" of rain on top of what has already fallen. This will bring rainfall totals across this axis to 5-11" by tomorrow morning. 
The wet pattern that has been in place will continue, with another storm system expected to bring heavy rainfall and flooding concerns to portions of the state, through Sunday morning.
A storm system pushing through the region will bring multiple rounds of rain and t'storms to portions of the state, through Sunday morning. An initial round of rain and t'storms pushed across much of Northern and portions of Central Illinois this morning through this afternoon. Widespread rainfall totals of 0.50-2.00" occurred with this activity across the aforementioned areas, with an isolated corridor of 3-7" having occurred along a Peoria to Pontiac axis. A second round of rain and t'storms has been pushing across much of Northern and Central Illinois this evening and into tonight, continuing overnight and into Saturday morning for some areas. Widespread rainfall totals of 0.50-5.00" have occurred with this round of activity. Additional widespread rainfall totals of 0.50"-3.00" are likely with this activity. A third and final round of rain and t'storms will be possible Saturday night through Sunday afternoon, once again across much Northern and portions of Central Illinois. Rainfall totals with this round should range from 0.25-2.00". The repeated rounds of rain and t'storms over the same areas, along with expected training, will allow for widespread rainfall totals of upwards of 1-3" across much of Northern and portions of Central Illinois during the aforementioned time-frame. Within this main axis, a corridor of 5-10" rainfall totals are expected, with isolated higher amounts possible. Given the wet pattern that has been in place the past several weeks, along with the expected heavy rainfall, low to moderate flood potential will exist across portions of Northern and Central Illinois. Below is the TAM flood forecast through Sunday morning. 
JP
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(3:15PM - 9/27/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state, through tonight.
9/27/19 - This Afternoon-Tonight’s Forecast... A storm system will be pushing across the region on today. An initial round of rain and t'storms has been moving across much of Northern and portions of Central Illinois this morning into this afternoon. Isolated t'storms have been severe, with damaging winds and large hail having been the main occurrences. In the wake of this activity, additional scattered showers and t'storms are expected to develop along the cold front across Southern Wisconsin, Northern Illinois, Iowa and Missouri during this afternoon and evening. This activity will then spread across much of Northern and Central Illinois late this afternoon through Saturday morning. An environment in place featuring moderate instability, moderate moisture and moderate shear will be in place. This will help support up to a widely scattered severe t'storm threat across portions of Northern and Central Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out. Below is the TAM severe t'storm forecast for this afternoon-tonight. 
JP
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(7:00PM - 9/27/19) The wet pattern that has been in place will continue, with another storm system expected to bring heavy rainfall and flooding concerns to portions of the state, through Sunday morning.
A storm system pushing through the region will bring multiple rounds of rain and t'storms to portions of the state, through Sunday morning. An initial round of rain and t'storms pushed across much of Northern and portions of Central Illinois this morning through this afternoon. Widespread rainfall totals of 0.50-2.00" occurred with this activity across the aforementioned areas, with an isolated corridor of 3-6" having occurred along a Peoria to Pontiac axis. A second round of rain and t'storms will push across much of Northern and Central Illinois, from evening through Saturday morning. Additional widespread rainfall totals of 1-4" are likely with this activity, with localized higher amounts possible where training of activity is maximized. A third and final round of rain and t'storms will be possible Saturday night through Sunday afternoon, once again across much Northern and portions of Central Illinois. The repeated rounds of rain and t'storms over the same areas, along with expected training, will allow for widespread rainfall totals of upwards of 2-5" across much of Northern and portions of Central Illinois during the aforementioned time-frame. Isolated corridors of rainfall totals of 5-8" are possible, but will be hard to pin down due to mesoscale factors. Given the wet pattern that has been in place the past several weeks, along with the expected heavy rainfall, low to moderate flood potential will exist across portions of Northern and Central Illinois. Below is the TAM flood forecast for this morning through Sunday morning. 
JP
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(9:30PM - 9/26/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state, Friday afternoon into Friday night.
9/27/19 - Friday Morning-Night Forecast... A storm system will be pushing across the region on Friday. An initial round of rain and t'storms is expected to develop across Iowa and Missouri Friday morning. This activity will then push across much of Northern and portions of Central Illinois Friday morning and afternoon. In the wake of this activity, some clearing and destabilization will occur. Additional scattered showers and t'storms will then develop along the cold front across Southern Wisconsin, Northern Illinois, Iowa and Missouri during the afternoon. This activity will the spread across much of Northern and Central Illinois Friday afternoon through Saturday morning. An environment in place featuring moderate instability, moderate moisture and moderate shear will be in place. This will help support up to a widely scattered severe t'storm threat across portions of Northern and Central Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out. Below is the TAM severe t'storm forecast for Friday morning-night. 
JP
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(9:00PM - 9/26/19) The wet pattern that has been in place will continue, with another storm system expected to bring heavy rainfall and flooding concerns to portions of the state Friday morning through Saturday morning.
A storm system pushing through the the region will bring multiple rounds of rain and t'storms to portions of the state Friday morning through Saturday morning. An initial round of rain and t'storms will be likely across much of Northern and portions of Central Illinois Friday morning through Friday afternoon. A second round of rain and t'storms will be likely across the same areas Friday afternoon into Saturday morning. The repeated rounds of rain and t'storms over the same areas, along wind expected training, will allow for widespread rainfall totals of upwards of 1-3" across much of Northern and portions of Central Illinois during the aforementioned time-frame. Isolated corridors of rainfall totals in excess of 3" are possible, but will be hard to pin down due to mesoscale factors. Given the wet pattern that has been in place the past several weeks, along with the expected heavy rainfall, low to moderate flood potential will exist across portions of Northern and Central Illinois. Below is the TAM flood forecast for Friday morning through Saturday morning. 
JP
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(9:30PM - 9/12/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state on Thursday.
9/12/19 - Thursday Morning-Night Forecast... A storm system will be pushing across the region on Thursday. Ahead of this system, along a warm front, scattered showers and t'storms may be ongoing Thursday morning across portions of far Northern Illinois. In the wake of this early activity, the warm front is expected to push back northward across Northern Illinois, along with some clearing and destabilization likely to occur across the state. Scattered showers and t'storms are likely to develop across Northern Illinois, in the vicinity of the warm front during the afternoon. This activity will push eastward across this area, into Thursday evening. Additional scattered showers and t'storms that develop along the cold front across Iowa and Missouri during the afternoon, will also push across Northern and Central Illinois Thursday evening and night. An environment in place featuring moderate instability, high moisture and moderate shear will be in place. This will help support a widely scattered severe t'storm threat across portions of Northern and Central Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out...Especially in the vicinity of the warm front across Northern Illinois. Below is the TAM severe t'storm forecast for Thursday morning-night. 
JP
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(12:00PM - 9/12/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state on Thursday.
9/12/19 - Thursday Morning-Night Forecast... A storm system will be pushing across the region on Thursday. Ahead of this system, along a warm front, scattered showers and t'storms will be ongoing Thursday morning across portions of Northern Illinois. In the wake of this early activity, the warm front is expected to push back northward across Northern Illinois, along with some clearing and destabilization likely to occur across the state. Scattered showers and t'storms are likely to develop across Northern Illinois, in the vicinity of the warm front during the afternoon. This activity will push eastward across this area, into Thursday night. Additional scattered showers and t'storms that develop along the cold front in Iowa and Missouri during the afternoon, will also push across Northern and Central Illinois Thursday evening and night. An environment in place featuring moderate instability, high moisture and moderate shear will be in place. This will help support a widely scattered severe t'storm threat across portions of Northern and Central Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out...Especially in the vicinity of the warm front across Northern Illinois. Below is the TAM severe t'storm forecast for Thursday morning-night. 
JP
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(12:30PM - 8/29/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state, this afternoon into night.
8/29/19 - This Afternoon-Tonight's Forecast... A storm system and associated cold front is sweeping across the region today. Isolated to scattered showers and t'storms will develop along and ahead of this front this afternoon across portions of Wisconsin, Iowa and Northern Illinois. This activity will then sweep southeastward, across portions of Northern and Central Illinois the rest of the afternoon and into tonight. An environment in place featuring low instability, moderate moisture and moderate shear will be in place. This will help support an isolated severe t'storm threat across portions of Northeast and Western Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out. A few changes this update... Model guidance from last night was in full agreement in showing the potential for widespread showers and t'storms, with at least widely scattered severe t'storm potential. However, model guidance from this morning did a complete reversal, showing a mostly dry frontal passage now...and only an isolated chance for showers/t'storms and an isolated severe t'storm potential. Observations from this morning and early afternoon support the new solution, thus have significantly cut back on severe probabilities for Northern and Central Illinois. Many locations may end up seeing a dry frontal passage, with Western and far Northeast having the best chance for showers, t'storms and an isolated severe t'storm. Below is the TAM severe t'storm forecast for this afternoon-tonight. 
JP
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(9:30PM - 8/28/19) A storm system moving through the region will bring a severe t'storm threat to portions of the state, Thursday afternoon into night.
8/29/19 - Thursday Morning-Night Forecast... A storm system and associated cold front will be sweeping across the region on Thursday. Scattered showers and t'storms will develop along and ahead of this front during the afternoon, across Wisconsin, Iowa and Northern Illinois. This activity will then sweep southeastward across much of Northern and Central Illinois the rest of the afternoon and into Thursday night. An environment in place featuring moderate instability, moderate moisture and moderate shear will be in place. This will help support an isolated to widely scattered severe t'storm threat across portions of Northern and Central Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out. With this update we have expanded severe t'storm probabilities. An upgrade to higher severe t'storm probabilities is possible in future updates. Below is the TAM severe t'storm forecast for Thursday morning-night. 
JP
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