Where snowfall will be the worst this weekend: Map
Where snowfall will be the worst this weekend: Map
ST. LOUIS – The weekend is creeping closer, and with it, a snowstorm that is projected to dump multiple inches of powder on the FOX 2 viewing area.
With recent data, confidence is high that the vast majority of our viewing area will see at least four inches of snow, and some counties will see much more than that. Four inches will act as our starting baseline, while our worst-case scenario is closer to a foot of snow, perhaps more by the time the storm ends on Sunday.
It all depends how the system comes together Saturday evening.
The weekend system we’re tracking is actually two systems as of Thursday morning—one north of Alaska and the other sitting just off the California coast. We’re working to determine when both pockets of energy will merge, a very intricate process. Even small changes to the when and where or that merger can mess with the alignment of the temperature profile and where precipitation (snow) will form.
The presence of dry air in the viewing area will play a big role in snow intensity on Saturday, but will have a reduced influence that same evening.
Data now more strongly points to a two-wave system. The first wave arrives Saturday and could leave one to three inches of light snow. There will be a break or lull until the evening, when the precipitation becomes light and patchy. In fact, it wouldn’t be surprising to see some frizzing drizzle or very fine sleet for several hours between the waves. Not because of the warm/dry air but rather the changing cloud physics between the two. The second wave arrives between 9 p.m. and midnight, with moderate to heavy snowfall into Sunday morning. Light snow may linger into the early afternoon before the system pulls away.
However, with a two-wave system, the biggest snowfall totals will come in areas that “double dip” both waves. The greatest overlap is slated for areas along and southeast of Interstate 44 and south of metro St. Louis. We’re projecting six to 10 inches in those areas, centered on a line near Rolla through Park Hills/Farmington and then into Illinois along the Kaskaskia River.
St. Louis radar: See a map of current weather here
There could an even heavier band of eight to 12 inches of snow in the far southern viewing area for Reynolds, Iron, and Madison counties in southeast Missouri. The I-70 corridor will get a glancing blow from the first wave but could get the full brunt of the second wave. With more confidence in the track of wave 2, we’re looking at widespread totals of four to eight inches of accumulation across the metro area.
Winds will not be extreme but they will get gusty, with speeds topping 20 to 25 miles per hour, which is going to result in drifting snow, particularly in open and rural areas.
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New data is always rolling in. You can watch us on our smart TV app. FOX2STL+ or the FOX 2 mobile app via the Apple or Google app stores.
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Courtesy: Chris Higgins
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Courtesy: Chris Higgins
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Courtesy: Chris Higgins
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Courtesy: Chris Higgins
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Courtesy: Chris Higgins
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