Today will feature a continuation of gloomy conditions, including areas of fog and drizzle- especially this morning.
Thankfully, most of central Indiana will get a break from significant rainfall through the majority of our Friday, but a new batch of steady to occasionally heavy rain will build in overnight into the day Saturday.
Forecast radar 2a Saturday.
Forecast radar 10a Saturday.
We’ll add thunderstorms into the forecast Saturday night into the predawn hours Sunday as a deepening surface low tracks into the Great Lakes and sweeps a cold front through the state Sunday morning. A couple of these storms could become strong across central Indiana and even severe downstate. As such, the Storm Prediction Center (SPC) has included the southern half of Indiana in a “marginal” risk of severe during this time period. We’ll keep a close eye on models over the next 24 hours as it’s possible this marginal and slight risk may need to be expanded further north.
Forecast radar 7p Saturday.
Forecast radar 1a Sunday.
Thankfully, drier air will quickly sweep into the state Sunday afternoon and this should allow sunshine to return as we close the weekend. Beforehand, additional rainfall of 1″ to 2″ will be widespread across central Indiana with locally heavier totals.
High pressure will settle overhead to open the new work week, allowing for a quieter time of things before a new active period develops by the middle of the week…
Embedded thunderstorms may target southern Indiana late tonight and Friday morning before more widespread thunderstorms (a couple could become strong) Saturday. The Storm Prediction Center (SPC) has included the southern half of the state in a “marginal risk” of severe thunderstorms Saturday.
All total, additional rainfall between now and Sunday morning should reach 2″ to 3″ across a widespread portion of the southern half of Indiana with locally heavier amounts.
We’ll finally dry things out as we close the weekend and head into early next week as high pressure settles overhead.
Next week will begin a pattern transition from the unseasonably warm weather we’ve enjoyed as of late to a colder regime for the first half of March. We note models continue to tank the NAO and AO.
Accordingly, the models are seeing the trough and associated colder than average pattern returning to the eastern half of the country as we rumble through the first half of March. With such a strong block in place, this can turn into an active pattern for a couple weeks to go along with the cold. Both the GEFS and EPS agree on the overall look.
While there’s no way to get specific on the individual storm threats that will eventually come with this pattern, the potential is present for a few storms to “bowl” underneath the block through the first 10-15 days of the month. Each storm will have the capability of delivering wintry precipitation, but this can also be a tricky time of year where most, if not all, ingredients need to come together to create significant wintry events. In a winter that’s been frustrating to central Indiana snow lovers (frigid, but dry first half and milder, wetter second half), perhaps it would be fitting to get a couple good snow dumps in March (when most are wanting and ready for spring)…
Steadiest rains will fall across the northern third of the state Tuesday with scattered downpours through the morning and afternoon hours across central Indiana.
After a quieter time of things most of Thursday, we’re tracking three additional waves of moisture Friday and through the weekend. At times, rain will be heavy, and we’ll certainly have to be on guard for water rise and increasing flooding issues as the weekend arrives.
By the time all is set and done Monday morning, we forecast additional widespread 3.5″ to 5″ rainfall totals with locally heavier amounts.