textproduct: Indianapolis

KEY MESSAGES

- Dry this weekend with much warmer air returning by Sunday

- Chances for rain and storms returns next week, with the potential for severe weather focused on Tuesday and Wednesday

- Warm temperatures expected all next week with multiple days in the lower to mid 80s

FORECAST UPDATE

Issued at 933 AM EDT Sat Apr 11 2026

An area of clouds continues to persist across portions of southern central Indiana this morning. Some of the clouds near Indy have mixed out, but thicker clouds remain to the south. These will mix out this morning as heating continues. Adjusted sky cover up this morning as needed.

Otherwise, mainly high clouds will increase today, allowing skies to average partly cloudy overall for most areas. Forecast high temperatures look reasonable given expected conditions, so made no changes at this time.

DISCUSSION (Today through Friday)

Issued at 246 AM EDT Sat Apr 11 2026

Stratus has shifted into the southern part of the forecast area as drier air advects into the region from the Great Lakes. Temperatures had fallen into the 40s over most of central Indiana at 06Z with even a few locations in the upper 30s over far northern counties.

High pressure will drift across the Great Lakes today as the cold front that passed through the area on Friday settles across the Tennessee Valley. The front will lift back north as a warm front early Sunday. The boundary will then become quasi-stationary to the north of the area into the first half next week with periodic chances for convection as a warm and increasingly humid airmass sets up over the Ohio Valley.

Today through Sunday

An initial issue early this morning is the potential for patchy frost to develop over far northern portions of the forecast area as temperatures drop into the mid 30s in a few locations. Winds have fallen to closer to 5 mph which will likely allow for isolated frost accrual focused across the northern Wabash Valley east towards Kokomo in the predawn hours.

High pressure will serve as the primary feature influencing the weather across the area into Sunday as it tracks east across the Great Lakes today into New England by Sunday. Deeper subsidence will keep skies mostly clear into this afternoon with only passing cirrus periodically. Low level flow will veer to easterly today then southeast by this evening as the high moves away to the east and the boundary begins its trek north as a warm front. Temperatures will be mild this afternoon after the chilly start...with highs ranging from the mid 60s north to the lower 70s south. Increasing moisture aloft pooling along the front will prompt an increase in clouds tonight as the front lifts through the region.

Clouds will thin again early Sunday as the front moves north into the lower Great Lakes with strong southwesterly winds developing as warm advection strengthens and the surface pressure gradient tightens across the Ohio Valley. Peak gusts Sunday afternoon at 30 to 35mph are possible across the northern half of the forecast area. Even with clouds increasing again in the afternoon temperatures will rise into the lower 80s across the region.

Sunday Night through Friday

An amplified upper level regime highlighted by a western trough and an eastern ridge will support a transition to a more active as multiple pieces of energy eject out from the trough and across the central part of the country. The initial wave will swing through the region Sunday night spreading showers and a few rumbles of thunder across the forecast area through Monday morning. Scattered convection may redevelop later in the day on Monday with weak ridging at the surface and aloft bringing drier air briefly back across the region Monday night.

A multi day risk for severe weather remains a focus for the first half of the week with the greatest threat across central Indiana on Tuesday and Wednesday as a stronger surface wave kicks out along the boundary to our north and moves into the upper Midwest. Given the projected kinematic profiles and available instability...all modes of severe weather would be in play across central Indiana during this timeframe. Locally heavy rainfall would also be a concern. The front will drift south but likely linger in the Ohio Valley into next weekend before finally clearing the region. Temperatures will remain warm next week with highs in the upper 70s and lower 80s each day. Cooler weather will arrive by next weekend.

AVIATION (18Z TAF Issuance)

Issued at 1252 PM EDT Sat Apr 11 2026

Impacts:

- Wind gusts over 20kt Sunday afternoon

Discussion:

VFR conditions are expected through the period.

Mainly high clouds are expected, with some mid clouds at times. Winds will gradually veer to the south/southwest by 12Z Sunday. Speeds will increase during Sunday, and gusts over 20kt will develop late morning/early afternoon and continue through the afternoon.

IND WATCHES/WARNINGS/ADVISORIES

None.