Rain, snow and cold, oh my

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Get ready, its about to get busy in the weather department.

As first mentioned early last week, Indiana is going to get colder January 10-17.  A strong cold front is projected to move through the Midwest Saturday allowing cold, Arctic air to move in to the state.

There are two weather systems we are tracking tonight.  One is a developing area of low pressure in southeast Colorado.  The second is just off the west coast of California.

SYSTEM #1

This will impact Indiana’s weather as early as Thursday.  First sending clouds to the state.  Second, rain.

WTTV Default

Computer models suggest rain starts to fall in central Indiana late Thursday night and in to Friday morning.  While there will be rain Friday morning, it does appear Friday afternoon will stay dry.

Temperatures will remain above normal both Thursday and Friday with temperatures in the 40°s.

SYSTEM #2

Upper-level energy is just beginning to arrive off the west coast of California.  Computer models project upper-level winds will help develop an area of low pressure in southeast New Mexico Friday.  It is projected to move northeast towards Indiana through the day.

WTTV Default2

The low will help lift moisture and produce rain, maybe a few thunderstorms, Saturday.  A cold front will pass through the state Saturday evening.  Behind the front, bitterly cold air will quickly move in.  As the cold air arrives, it will interact with moisture and cause rain to change over to snow, likely starting in northwestern Indiana and spreading south and east.

Temperatures fall through the day Sunday with the high occurring during the early morning (upper 30°s) and late afternoon temperatures in the upper teens to lower 20°s.

12z Yesterday ECMWF 500mb w SFC Temps

Cold air sticks around for Monday with temperatures starting in single digits that morning and afternoon temperatures rebounding to the upper teens to lower 20°s.

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