Monday, October 21, 2019

Blustery Winds and Heavy Rain Welcome in the New Work Week

If only we could have a repeat of yesterday's weather to kick off the new work week. Unfortunately, a potent but textbook mid-latitude cyclone over the central U.S has brought gusty winds and pockets of rain to welcome the new week. It isn’t the easiest way to start a Monday, but rain chances taper off through the afternoon.

Heavy rain made for a pretty sloppy morning drive, but the good news about this rainy start is that it will come to an end quicker than you think. The first round of showers weakened a little bit before entering the Stateline, but still brought light to moderate downpours towards the end of the morning commute. The second round is set to roll through during the late morning hours ahead of a lifting cold front. Once the second round moves out of the region shortly after mid-day, the winds become the story.

Switching gears and going back to the potent system that is responsible for this morning’s rain. This system will also be the source for the gusty winds that we will encounter today and tomorrow. We are talking about a textbook mid-latitude cyclone sitting across the Midwest. Typically when a low pressure system undergoes cyclogenesis, it strengthens and deepens while taking the shape of a comma cloud.

Around the center of circulation are lines of equal pressure called isobars, and these isobars when stacked very close to one another result in gusty winds.  Locally, winds could occasionally gust as high as 35 to 45 mph throughout the day, especially this afternoon. This could lead to the potential for difficult driving during the evening commute. Make sure you’ve got a firm grip on the steering wheel this afternoon and evening.

The associated cold front will be passing through during the early afternoon hours, putting a wrap to the heaviest of the rain. A cold and dry air mass filters in behind it which could actually lead to a few peeks of sunshine to end the first day of the new work week. The small chance for light rain continues tonight and then also through the first half of Tuesday before our low pressure exits the region. Winds remain gusty on Tuesday, with another day of 40 mph gusts possible.

The second half of the week features drier conditions, with highs much cooler than average. High temperatures are forecast to remain in the 50’s to upper 40’s later this week. In fact, highs seem to stay below average towards the end of October and into the beginning of December. Might need to bundle the kids up a bit as you take them out trick or treating on Halloween!

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