The rain/snow system that pushed through Cheatham County today has now moved off to the far northeast corner of the state. The temperatures as of 6:40 P.M. throughout the county showed 37 for Ashland City, 36 for Pleasant View, and 37 for Kingston Springs. In the upper level part of the atmosphere, there is a trough located north of Manitoba which has been the dominating factor for the cold weather that has been dominating the area. A jet max is located over Canada, just north of North Dakota stretching down South Dakota. The importance of this jet max is that it is the reason for the formation of the surface low that is currently located over Northwest Iowa that could impact our area tonight with some light snow. Associated with the surface low there is moisture at 700 mb which helps support this low in producing snow. Very light Cold Air Advection is taking place keeping our temperatures in the upper atmosphere below freezing indicating any precipitation that falls would be snow. Over Cheatham winds are coming from the Northwest.
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| Surface map, take note of the Low at the Southeast corner of Minnesota just barely out of frame. |
The low that brought in the precipitation over the the area will move off the east coast this evening. Colder temperatures will occur overnight with a temperature at midnight at 30. The morning low will start out at 28 and the surface low located in Minnesota will move into Kentucky bringing with it snow. The latest for Cheatham is a few flurries are possible, with no accumulation. The farther east you go (e.g. the Cumberland Plateau), the more accumulation will occur. Anyone having to travel in the morning should not have a problem.
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| HRRR projected radar for 4:00 A.M. February 3, 2013. |
Forecaster: Tyler Binkley
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