1.) Temperatures this morning are running much colder than this time 24 hours ago. Many central IN neighborhoods are waking up to temperatures in the middle to upper 20s.
2.) Speaking of cold, to-date, March is running slightly colder than average (by 1.1°). Note the spring and summer-like warmth across the SW. “Pieces” of that warmth will eject northeast in modified fashion late March into April.
3.) High pressure will supply a dry, but cold Wednesday. Highs will run close to 10° below average (lower 40s), but at least we’ll enjoy the sun!
4.) Temperatures will begin to warm as we progress through the latter portions of the week. We’ll be near seasonal norms Thursday (low 50s), and above normal Friday into the weekend (mid-upper 60s). With the warmer air, rain and storm chances will also be on the increase. As of now, we target best rain chances late Saturday into Sunday. A couple thunderstorms are also possible. Rainfall totals of 0.50″-1.00″ seem like a good bet with locally heavier amounts.
5.) This is just the beginning of an active stretch of weather to wrap up the month of March. (3) additional storms will have to be monitored next week. Accordingly, precipitation anomalies will run above normal.
Highlights:
3.) Sunshine can be expected today and after the frigid beginning, a moderating trend will begin this afternoon that will send temperatures into the lower to middle 40s. That’s still close to 10° below average for daytime highs, but will feel much better than what we’ve been dealing with over the past several days. Add in that high March sun angle and it’ll actually be a very pleasant afternoon.
4.) Unfortunately, we won’t hang on to the sunshine for St. Patrick’s Day. A warm front will lift northeast through the region during the overnight and lead to an increase in clouds by evening. A wintry mix of sleet and freezing rain will impact central IN predawn Friday morning before transitioning to showers mid-to-late morning. “Light” is the key word here with models suggesting less than 0.20″ total. By Friday afternoon we’re back to dry times.
5.) We’ll turn a touch cooler Saturday and it’ll be a blustery day, as well. A couple of early snow showers are possible across east and northeast portions of the state before afternoon sunshine returns. High pressure settles in overhead Saturday evening and will set up a nice second half of the weekend- lots of sunshine and milder temperatures by Sunday (lower 50s).
6.) Looking ahead, the quiet times will be hard to come by as we progress through the latter portions of the month. Both the new JMA Weeklies (shown below) and other ensemble guidance is bullish on a wetter than average close to the month, and also one that features wild temperature swings. Thoughts shift back to severe prospects, especially for our friends to our south and the potential of backlash wet snow showers in the colder air. From a temperature perspective, it’s a pattern that will be very “transient” with no true long-lasting periods of significant warmth, or cold- relative to average.
Highlights:
As we progress through the afternoon hours, clouds will increase and scattered snow showers will develop. Highs will remain below freezing today- generally in the upper 20s to around 30.
With very cold air aloft, a lobe of upper level energy, and some lake enhancement, scattered snow showers will develop this afternoon and continue into the evening hours. Additionally, snow squall parameters are high and locally intense bursts of snow can also be expected as we move through the afternoon and evening hours. These won’t impact everyone, but where they do occur, expect rapidly reduced visibility and a quick accumulation. Forecast radar shows this potential as we move into the afternoon hours, with a couple of lake effect streamers continuing Wednesday morning.
