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Quiet weather as rivers run high

1 year 8 months 1 week ago Monday, January 18 2016 Jan 18, 2016 January 18, 2016 5:49 AM January 18, 2016 in Weather
Source: WBRZ Weather

Many gauges along the Mississippi and Atchafalaya Rivers are cresting early this week.

 

Today and Tonight: Your new week will kick off with sunshine and cool temperatures. For Martin Luther King Day, high temperatures will run into the mid 50s with light northerly winds. The overnight hours are expected to remain quiet with a low close to freezing.

 

Up Next: More sun will be dialed up Tuesday with high temperatures topping out near 60 degrees. During the overnight hours, winds will turn easterly allowing lows to stay well above freezing and in the mid 40s. By Wednesday, more evidence of the easterly winds will be revealed by some moisture returning to the atmosphere. Clouds will develop, even perhaps a shower by the evening hours. Midweek highs will top out in the upper 60s.

THE SCIENCE: 

Forecast Discussion: High pressure in the Midwest will maintain light northerly winds and quiet weather into Tuesday. At that time, a shift to the east will mean local surface winds also turnaround to that direction allowing a slow moderation in temperatures to begin. The parade of shortwave troughs in the sub-tropical jet stream continues, with another one pegged to roll across the region on Wednesday. A weak, accompanying front at the surface will slide into the area as well bringing little more that a passing shower—most likely in northern locations. A more robust system will move into the region late next week. Timing remains a little uncertain but the Thursday to Friday timeframe seems feasible. With this, some moisture return established should add to the instability enough so that a few thunderstorms will be possible. We’ll keep an eye to it in the event that instability increases enough to warrant an outlook for severe storms. Cooler air will trail and arrive in time for next weekend.

 --Josh

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