textproduct: Indianapolis

KEY MESSAGES

- Pleasant early summer weather continues through Friday - Showers/t-storms north Friday night...but better chances for widespread rain/strong storms will be late Saturday-Sat night - Very warm and humid next week with occasional showers/t-storms

DISCUSSION (Today through Wednesday)

Issued at 330 AM EDT Thu Jun 4 2026

Today and Friday...

Another pleasant early summer day is on tap with readings and dewpoints both a couple degrees higher...and occasional southwest breezes the only noticeable changes from Wednesday. A few afternoon cumulus clouds are possible under more FEW/SCT cirrus, but dry column will maintain rain-free conditions. Expect mainly mid-80s by late afternoon, with central Indiana's typical cooler spots closer to 80F. Light southerly flow tonight will hold readings by the late overnight to the 60-65F range. Similar conditions expected for Friday except for strengthening winds ahead of next system across the Upper Midwest ...becoming robust by afternoon, with gusts up to 20-30 mph...and breezy conditions continuing through Saturday.

Saturday through Wednesday...

Transition into more typical mid-summer pattern is expected this weekend when a weaker northern short wave/surface low pressure... slowly drags the associated frontal boundary south into the region. Lower confidence in timing and location of any better-organized precipitation or even storms due to multi-faceted, yet poorly-forced system: what could be stronger cells Friday back towards the Quad Cities region may dry up before producing any impacts for the local CWA...perhaps best combo of deep moisture and brief forcing may occur pre-dawn Saturday without the assistance of daytime heating...and once the stalled front sets up across Indiana by late Saturday thru early next week any legit forcing aloft will have departed east.

The H500 subtropical ridge will re-establish itself through early next week over the Great Lakes and much of eastern Canada, with a corresponding amplified surface ridge from Quebec to the Deep South ...directing a copious supply of Gulf moisture into the region by the end of the weekend. At times scattered showers and isolated, embedded pulse storms capable of stronger winds and downpours will certainly be on the table...with perhaps localized flooding the greatest concern given the stalled nature of the boundary.

Upper ridge axis should slide a bit east of Indiana around the Tuesday timeframe, but at least widely scattered diurnally-driven showers should be the rule through the end of the forecast period. Otherwise between any convective showers, very warm and humid, July- like weather can be expected amid lighter, mainly southerly breezes that will maintain dewpoints in the upper 60s to around 70 through at least Wednesday.

AVIATION (12Z TAF Issuance)

Issued at 700 AM EDT Thu Jun 4 2026

Impacts: None

Discussion:

VFR conditions will continue over central Indiana through Friday morning. Stacked high pressure, centered over the TN Valley this morning will continue to drift east to the Carolinas by the end of the TAF period. Mainly FEW to SCT high cloud to prevail again today, with FEW late day cumulus possible south of KIND. More organized SCT/possibly BKN cirrus to cross region this evening.

Calm winds early today will yield to light breezes from 200-220 degrees by 15Z...with sustained winds mainly 7-11KT this afternoon, and gusts to 14-18KT at KLAF after 18Z. Expect SSW flow sustained around mainly 5-8KT tonight. Friday morning to bring increasing SSW winds at KIND, with gusts up to 22KT by 18Z Friday.

No precipitation or visibility reductions expected through the TAF period.

IND WATCHES/WARNINGS/ADVISORIES

None.