Severe Thunderstorm Warning issued for several Indiana counties

More cold and snow through the week, cold pattern tightens grip

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SNOW SHOWERS DEVELOP THIS EVENING

Scattered rain and snow showers are racing southeast from Illinois late Tuesday afternoon.  The rain/snow showers are likely in the city between 7 and 8 pm.  After sunset snow showers will briefly reduce visibility.  Locally a coating of snow is possible on roof tops, grassy areas and cars through Wednesday morning.

Satellite_Radar

LATE SEASON COLD BLAST

A cold front will sweep the state Wednesday morning bring a blast of late season cold.  Passage of the front is expected around 1AM in the city.  Northwest winds will be brisk through Wednesday morning as temperatures dive into the middle 20’s with a forecast wind chill in the teens at daybreak.  Afternoon temperatures are expected to remain into the middle 30’s Wednesday – 15° below the normal high of 50°.

MORE SNOW THURSDAY NIGHT

The next system rides a northwest flowing jet stream into the state Thursday evening.  The “clipper” system is likely to bring another spell of snow to the city with possible accumulation.  Snow will taper off by Friday morning.

RPM_ADI

COLD PATTERN NEXT 2 WEEKS

With the exception of Friday ( temperatures are expected to rise into the lower 50’s late in the day) the overall pattern is cold.  A four-week stretch of chilly weather will roll on perhaps through the end of the month.  Since mid February, a blocking pattern has developed over the North Atlantic.  This block creates a buckle in the jet stream and allows cold air to set up shop for extended periods over the eastern half of the nation.  While a temporary warm up (a couple of days) is possible the overall view is chilly.  here is a break out of high temperatures over the next 16 days.

PAST 5 DAYS: +4°

DAYS 1-5: -11°

DAYS 6-10: -12°

DAYS 11-16: -12°

The average high temperate over the next 2 weeks rises from 51° to 55°

Jet Stream

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