|
(11:45AM - 12/31/21) A winter storm is expected to move through the region on Saturday. This winter storm is expected to produce a swath of accumulating snow across the northern half of the state.
Summary... A storm system will move from the Plains on Saturday morning, through the Mid-Mississippi Valley and Ohio Valley Saturday afternoon into Saturday night, and then into the Northeast by Sunday morning. This storm system is expected to bring a swath of accumulating snow across the northern half of the state, Saturday morning through Sunday morning. Additionally, lake enhancement/lake effect snow will be likely across Northeast Illinois during this time as well. With this update no significant changes were needed, as the going forecast looks good based on current information. At this time there continues to be some disagreement within model guidance, which will be resolved in the next 18 to 24 hours leading up to the winter storm. Stay tuned for future updates.
Forecast...
Precipitation is expected to spread northeastward across Northern and Central Illinois Saturday morning. Across the northern half of the state, precipitation is expected be be all snow for the duration of this winter storm. Snow is expected across the northern half of the state from the onset Saturday morning, through Saturday afternoon and evening, before ending with time Saturday night or early Sunday morning. Snow will be moderate to heavy at times, with snowfall rates up to or in excess of 1" per hour at times, especially Saturday afternoon and evening. Lake enhanced/lake effect snow will also be possible across Northeast Illinois, which could add to snowfall totals for that area. Additionally, wind gusts of 20-40MPH can be expected as well, which could cause some blowing and drifting of snow. Further south across Central Illinois, while portions of the area may stay as all snow for the duration of the winter storm, a transition zone is likely to set up across Central Illinois. Along this transition zone; a mix of snow, sleet, freezing rain and rain will be possible. Minor accumulations of each wintry precipitation type will be possible. Even further south across the southern half of the state, precipitation will come in the form of rain and t'storms...However, at this time no severe weather threat is expected. Snowfall totals upwards of 2-5" to 4-7" are expected across much of the northern half of the state. Across Central Illinois, where the wintry precipitation transition zone will set-up, snowfall totals may vary greatly over short distances and be nonuniform...As well as there being the potential or minor freezing rain and sleet accumulation. Below is the snowfall forecast for this winter storm. 
JP
0 Comments
(10:45PM - 12/30/21) A winter storm is expected to move through the region on Saturday. This winter storm is expected to produce a swath of accumulating snow across the northern half of the state.
Summary... A storm system will move from the Plains on Saturday morning, through the Mid-Mississippi Valley and Ohio Valley Saturday afternoon into Saturday night, and then into the Northeast by Sunday morning. This storm system is expected to bring a swath of accumulating snow across the northern half of the state, Saturday morning through Sunday morning. Additionally, lake enhancement/lake effect snow will be likely across Northeast Illinois during this time as well. Over the past several days model guidance has been honing in on the potential for a winter storm to affect the region and state this weekend. With time model guidance has honed in on things, and has come into fairly good agreement regarding track and strength of the storm system, along with positioning of the snowfall axis and snowfall amounts. However, it should be noted there is still some disagreement within model guidance, which will be resolved in the next two days leading up to the winter storm. Stay tuned for future updates. With this update no significant changes were needed, as the going forecast fits with the newest information coming in.
Forecast...
Precipitation is expected to spread northeastward across Northern and Central Illinois Saturday morning. Across the northern half of the state, precipitation is expected be be all snow for the duration of this winter storm. Snow is expected across the northern half of the state from the onset Saturday morning, through Saturday afternoon and evening, before ending with time Saturday night or early Sunday morning. Snow will be moderate to heavy at times, with snowfall rates up to or in excess of 1" per hour at times, especially Saturday afternoon and evening. Lake enhanced/lake effect snow will also be possible across Northeast Illinois, which could add to snowfall totals for that area. Additionally, wind gusts of 20-40MPH can be expected as well, which could cause some blowing and drifting of snow. Further south across Central Illinois, while portions of the area may stay as all snow for the duration of the winter storm, a transition zone is likely to set up across Central Illinois. Along this transition zone; a mix of snow, sleet, freezing rain and rain will be possible. Minor accumulations of each wintry precipitation type will be possible. Even further south across the southern half of the state, precipitation will come in the form of rain and t'storms...However, at this time no severe weather threat is expected. Snowfall totals upwards of 2-5" to 4-7" are expected across much of the northern half of the state. Across Central Illinois, where the wintry precipitation transition zone will set-up, snowfall totals may vary greatly over short distances and be nonuniform...As well as there being the potential or minor freezing rain and sleet accumulation. Below is the snowfall forecast for this winter storm. 
JP
(11:45AM - 12/30/21) A winter storm is expected to move through the region on Saturday. This winter storm is expected to produce a swath of accumulating snow across the northern half of the state.
Summary... A storm system will move from the Plains on Saturday morning, through the Mid-Mississippi Valley and Ohio Valley Saturday afternoon into Saturday night, and then into the Northeast by Sunday morning. This storm system is expected to bring a swath of accumulating snow across the northern half of the state, Saturday morning through Sunday morning. Additionally, lake enhancement/lake effect snow will be likely across Northeast Illinois during this time as well. Over the past several days model guidance has been honing in on the potential for a winter storm to affect the region and state this weekend. With time model guidance has honed in on things, and has come into fairly good agreement regarding track and strength of the storm system, along with positioning of the snowfall axis and snowfall amounts. However, it should be noted there is still some disagreement within model guidance, which will be resolved int he next two days leading up to the winter storm. Stay tuned for future updates.
Forecast...
Precipitation is expected to spread northeastward across Northern and Central Illinois Saturday morning. Across the northern half of the state, precipitation is expected be be all snow for the duration of this winter storm. Snow is expected across the northern half of the state from the onset Saturday morning, through Saturday afternoon and evening, before ending with time Saturday night or early Sunday morning. Snow will be moderate to heavy at times, with snowfall rates up to or in excess of 1" per hour at times, especially Saturday afternoon and evening. Lake enhanced/lake effect snow will also be possible across Northeast Illinois, which could add to snowfall totals for that area. Additionally, wind gusts of 20-40MPH can be expected as well, which could cause some blowing and drifting of snow. Further south across Central Illinois, while portions of the area may stay as all snow for the duration of the winter storm, a transition zone is likely to set up across Central Illinois. Along this transition zone; a mix of snow, sleet, freezing rain and rain will be possible. Minor accumulations of each wintry precipitation type will be possible. Even further south across the southern half of the state, precipitation will come in the form of rain and t'storms...However, at this time no severe weather threat is expected. Snowfall totals upwards of 2-5" to 4-7" are expected across much of the northern half of the state. Across Central Illinois, where the wintry precipitation transition zone will set-up, snowfall totals may vary greatly over short distances and be nonuniform...As well as there being the potential or minor freezing rain and sleet accumulation. Below is the snowfall forecast for this winter storm. 
JP
(6:30PM - 12/29/21) A winter storm is expected to move through the region on Saturday. This winter storm will have to potential to produce a swath of accumulating snow across the northern half of the state.
Summary... Over the past several days model guidance has been honing in on the potential for a winter storm to affect the region and state on Saturday, which will have the potential to produce a swath of accumulating snow across the northern half of the state. While the potential for a winter storm to affect the state is likely, there is still a bit uncertainty regarding track and strength of this system...Which will affect the location of the snowfall axis and snowfall amounts.
What we know...
-A winter storm will move through the region on Saturday. -Precipitation will spread across the state, early Saturday morning through late Saturday night. -An axis of accumulating snow will slice across the state, with the northern half of the state being favored. -Several inches of accumulating snow is possible where the main snowfall axis sets up. What we don't know... -The exact track and strength of the storm system. -The exact location of the snowfall axis, and expected snowfall amounts. 
JP
(9:30AM - 12/28/21) A storm system moving through the region today will bring a period of accumulating snow across Northern Illinois, this morning through this evening.
Summary... A storm system will move from the Plains this morning, into the Northern Great Lakes by tonight. This storm system will bring a period of accumulating snow across Northern Illinois, this morning through late this afternoon and evening, before precipitation changes to rain and/or ends. With this update we slightly raised expected snowfall totals across portions of Northwest Illinois, and adjusted the gradient on the southern end of the snowfall axis.
Forecast...
Precipitation spread into Central Illinois early this morning, in the form of rain and a mix. This activity will transition to all rain with time this morning, if it hasn't already. As precipitation pushes northeastward into Northern Illinois this morning, it is moving into colder air, allowing for a transition to snow. Snow will be likely across Northern Illinois for a several hour period of time, from this morning through late this afternoon and evening. As milder air works northward and the back-edge of the precipitation shield moves in, snow will change over to a bit of rain/drizzle and end late this afternoon and Tuesday evening. Snowfall totals upwards of 1-3" is expected across much of Northeast and North-Central Illinois with this event, with 2-5" expected across much of Northwest Illinois. With temperatures hovering around freezing for this event, this will be a wet snow, which accumulates best of colder surfaces with some melting during the event. However, snow accumulation is expected on pavement surfaces as well, which could cause travel issues. Below is the snowfall forecast for this event. 
JP
(11:30PM - 12/27/21) A storm system is expected to move through the region on Wednesday. This storm system will have to potential to produce a period of accumulating snow across Northern Illinois, Wednesday midday through early Wednesday night.
Summary... A storm system will develop in the Mid-Mississippi Valley Wednesday morning, then moving through the Ohio Valley into Wednesday night. This storm system will have the potential to produce a period of accumulating snow across Northern Illinois, Wednesday midday through early Wednesday night. There is still uncertainty and model disagreement regarding this potential. Stay tuned for future updates.
Forecast...
An area of snow is expected to develop across Iowa and Northern Missouri Wednesday morning. This area of snow will expand, and then moves northeastward across the north half of Illinois, midday Wednesday though early Wednesday night, before ending. It is possible there that there will be a corridor of mixed precipitation along the rain snow line as well. It is looking increasingly likely that there will be the potential for minor snowfall accumulation across a large portion of the northern half of the state with this event. 
JP
(10:45PM - 12/27/21) A storm system is expected to move through the region on Tuesday. This storm system will bring a period of accumulating snow across Northern Illinois, Tuesday morning through Tuesday evening.
Summary... A storm system will move from the Plains on Tuesday morning, into the Northern Great Lakes by Tuesday night. This storm system will bring a period of accumulating snow across Northern Illinois, Tuesday morning through Tuesday evening, before precipitation changes to rain and/or ends. With this update we slightly raised expected snowfall totals in the Chicago metro area and across Northwest Illinois, otherwise no significant changes were needed. At this time there continues to be some uncertainty and model disagreement regarding this event. Stay tuned for future updates.
Forecast...
Precipitation is expected to spread into Central Illinois early Tuesday morning, in the form of rain, though there could be a brief mix for some areas. As precipitation pushes northeastward into Northern Illinois Tuesday morning, it will work into colder air, allowing for a transition to snow. Snow will be likely across Northern Illinois for a several our period of time, from Tuesday morning through Tuesday evening. As milder air works northward and the back-edge of the precipitation shield moves in, snow will change over to a bit of rain/drizzle and end Tuesday evening. Snowfall totals upwards of 1-3" is expected across much of Northern Illinois with this event, with 2-5" being possible across far Northwest Illinois. With temperatures hovering around freezing for this event, this will be a wet snow, which accumulates best of colder surfaces with some melting during the event. Below is the snowfall forecast for this event. 
JP
(11:45AM - 12/27/21) A storm system is expected to move through the region on Tuesday. This storm system will bring a period of accumulating snow across Northern Illinois, Tuesday morning through Tuesday evening.
Summary... A storm system will move from the Plains on Tuesday morning, into the Northern Great Lakes by Tuesday night. This storm system will bring a period of accumulating snow across Northern Illinois, Tuesday morning through Tuesday evening, before precipitation changes to rain and/or ends. There is still some uncertainty and model disagreement regarding this potential. Stay tuned for future updates.
Forecast...
Precipitation is expected to spread into Central Illinois early Tuesday morning, in the form of rain. As precipitation pushes northeastward into Northern Illinois Tuesday morning, it will work into colder air, allowing for a transition to snow. Snow will be likely across Northern Illinois for a several our period of time, from Tuesday morning through Tuesday evening. As milder air works northward and the back-edge of the precipitation shield moves in, snow will change over to rain and end, late Tuesday afternoon and evening. Snowfall totals upwards of 1-3" is expected across much of Northern Illinois with this event, with 2-5" being possible across far Northwest Illinois. With temperatures hovering around freezing for this event, this will be a wet snow, which accumulates best of colder surfaces with some melting during the event. Below is the snowfall forecast for this event. 
JP
(11:00PM - 12/26/21) A storm system is expected to move through the region on Tuesday. This storm system will have to potential to produce a period of accumulating snow across Northern Illinois.
Summary... A storm system will move from the Plains Tuesday morning, into the Northern Great Lakes by Tuesday night. This storm system will have the potential to produce a period of accumulating snow across Northern Illinois, Tuesday morning through Tuesday afternoon, before precipitation changes to rain and/or ends. There is still uncertainty and model disagreement regarding this potential. Stay tuned for future updates.
Forecast...
Precipitation is expected to spread into Central Illinois early Tuesday morning, in the form of rain. As precipitation pushes northeastward into Northern Illinois Tuesday morning, it will work into colder air, allowing for a transition to snow. Snow will be possible across Northern Illinois for a several our period of time, from Tuesday morning through Tuesday afternoon. As milder air works northward and the back-edge of the precipitation shield moves in, snow will change over to rain and end, later Tuesday afternoon and evening. It is looking increasingly likely that there will be the potential for minor snowfall accumulation across a large portion of Northern Illinois with this event. 
JP
(10:00AM - 12/26/21) A brief recap of the Christmas Eve/Christmas Day, Dec 24-25th brief shot of record warm temperatures that affected the state and region.
Recap Summary... The combination of a trough and storm system moving from the Western US into the Plains/Midwest/Canada, and a ridge in place across the Southeastern US, brought a brief shot of highly anomalous and record warm temperatures to the state and region on Christmas Eve and Christmas Day.
Event Recap...
Christmas Eve - Christmas Day, Fri-Sat Dec 24-25th... High temperatures across the state on Christmas Eve (Fri, Dec 24th) made it well into the 50's and 60's, with some locations across Western and Southern Illinois having topped out around 70. Several locations across the state tied or broke record high temperatures for the date of Dec 24th. A storm system moved across the state on Christmas Day (Sat, Dec 25th), ushering in cooler temperatures across the northern half of the state. However, the southern half of the state continued to see mild to warm temperatures, with high temperatures into the 60's and 70's. Several locations across the southern half of the state tied or broke record high temperatures for the date of Dec 25th. Below is a list of broken or tied records for select cities across the state during this period. 
JP
|
Archives
March 2023
categories
All
|
RSS Feed