Happy Wednesday! Today’s sunshine sure was nice and I hope you had an opportunity to get outside and enjoy it. Unfortunately, the pleasant weather won’t last as a storm system begins to impact central Indiana as early as the overnight period. Clouds will continue to thicken tonight and showers and thunderstorms (non-severe) will arrive during the predawn hours.
We note short-term, high resolution, forecast radar data brings the initial wave of thunderstorms through the city during the 2a-3a time frame early Thursday morning.
Multiple rounds of showers and thunderstorms will likely impact central Indiana through the mid and late morning hours Thursday.
As we press into the early afternoon hours, model data suggests we see a “lull” in the stormy weather and potentially even a few breaks in the cloud cover. This would serve to “up the ante” in regards to the prospects of severe weather potential Thursday afternoon, particularly mid and late afternoon through the evening hours. Accordingly, the Storm Prediction Center continues to highlight central Indiana for the risk of severe weather Thursday.
In fact, given a look at the most recent data, I wouldn’t be surprised to see the “enhanced” risk area expand further north in future updates. This would also include all modes of severe weather (large hail, damaging straight line winds, and potentially a tornado). As things stand this evening, we bracket the hours of 4p and 10p Thursday for the greatest potential of severe weather.
Forecast radar paints a stormy picture Thursday evening and, as mentioned above, a few of these storms could become severe.
As we push into the overnight hours Thursday into Friday, unsettled weather will continue, but we’ll get rid of the severe potential. “Nuisance” type showers will continue into the first half of Friday before drier air arrives Friday afternoon and evening. This drier theme will settle in for the weekend and provide a very pleasant open to April.
Ensure you remain weather-aware Thursday and have a means of getting the latest warnings.
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This morning’s showers and thunderstorms were the first of (3) rounds of storms expected today. Ironically, most of the daytime hours should be rain and storm-free. We’ll note scattered showers and thunderstorms across northern portions of the state this afternoon, as a warm front continues to lift north.
Finally, our severe weather threat will come to an end with the passage of a squall line during the pre-dawn hours Wednesday morning. The biggest threat with this line of storms will be damaging wind, but a quick spin-up tornado can’t be ruled out either.
With the majority of this event occurring when most are sleeping, please have a way to get the latest information on watches and warnings that are sure to come tonight. We highly encourage everyone to have a weather radio, and be sure to set the alert mode to “on” before bedtime tonight.
This warmer regime is the sign of stormy times that will develop as we move into Tuesday. An initial round of showers and thunderstorms will impact central Indiana Tuesday morning and the HRRR forecast radar is picking up on this nicely, especially during the predawn hours.
The wet, stormy start to the day will give way to a mostly dry time of things through the majority of the daylight hours Tuesday, but our concentration will be on the Tuesday night-Wednesday morning period, as the potential exists for some rather turbulent weather.
Modeled radar suggests things may begin to get “busy” around these parts late evening and during the overnight. The latest high resolution NAM (hot off the press as of this update) paints a rather ominous look as midnight nears Wednesday morning.
We then note modeling bringing the squall line through central Indiana during the overnight and predawn hours. We’ll have to fine tune timing as we move through the day Tuesday, but we bracket the hours of 2a and 6a when a concentrated line of strong to severe storms rumbles through the state (northwest to southeast). Hail and damaging straight line winds are of greatest concern, but a quick spin-up tornado can’t be ruled out.
Our weather will turn quieter, but colder, as Wednesday progresses into Wednesday evening, including blustery conditions with falling temperatures.
That said, the chilly late week conditions won’t last long, and a gusty southwesterly air flow will develop as early as Saturday. This will help give temperatures a significant boost Saturday afternoon after a cold start to the day. 60° is possible Saturday afternoon and the mercury may approach 70° Sunday!
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