Lebanon Indiana Weather Forecast Discussion

019
FXUS63 KIND 101822
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
222 PM EDT Fri Oct 10 2025
.KEY MESSAGES...
- Warming trend this weekend back to the 70s
- Continued dry weather expected through the next week, along with
  mild days and cool nights.
- Little to no chances for rain in the extended forecast
&&
.SHORT TERM (This Evening through Saturday)...
Issued at 156 PM EDT Fri Oct 10 2025
Warm and dry conditions continue into the weekend across Indiana.
Satellite imagery this afternoon shows high clouds pushing in
overhead associated with a dying complex of showers in Missouri.
Lowered high temperatures by a couple degrees to account for the
cloud cover, keeping today`s highs in the upper 60s to near 70
degrees.
A weak frontal boundary pushes in from the northwest during the
overnight hours; however with such dry antecedent conditions, not
expecting any precipitation locally. There is enough moisture along
the front for lower stratus to develop with, as seen on satellite
imagery upstream. Cloud cover overnight should keep overnight lows
quite a bit warmer tonight than last night with lows in the 50s.
High pressure builds back into the Great Lakes for the weekend
switching flow around to the northeast. Partly to mostly cloudy
skies remain through the early morning hours as moisture becomes
trapped under a low level inversion. Expect clearing skies late
morning into the afternoon as mixing begins and drier air filters
in. The frontal passage from overnight should not have any impact on
temperatures as low level cooler air will remain north of the
region. Forecast soundings show steep low level lapse rates under a
subsidence inversion tomorrow afternoon, but with higher mixing
heights than on Friday. With clearing skies and better surface
heating, high temperatures in the lower to mid 70s are likely across
Central Indiana. Low level flow is relatively weak, so still expect
afternoon winds only around 5 to 10 mph.
&&
.LONG TERM (Saturday Night through Friday)...
Issued at 222 PM EDT Fri Oct 10 2025
Yet another extended period of dry and quiet weather will encompass
the weekend and most if not all of next week with broad ridging
aloft and at the surface. Skies will be mostly clear through much of
the period with any more substantial cloud cover being largely
confined to the middle of next week as a weakening frontal boundary
drifts into the lower Great Lakes before retreating back to the
north.
Temperatures will remain above normal for mid October throughout
next week. The ongoing drought and antecedent dry conditions over
the region along with a lack of significant moisture transport will
continue to promote exaggerated diurnal ranges through the extended.
Have continued recent trends of nudging highs and lows to the
farther ends of the guidance envelope. Highs will generally be above
70 degrees through the next 7 days with lows largely ranging between
the mid 40s and mid 50s. Upper level heights across the forecast
area will be maximized early next week with the warmest highs
expected Monday and Tuesday in the mid and upper 70s. Spots in the
lower Wabash Valley may make a run at 80 both days as well.
Heights aloft will buckle slightly by late next week in response to
an upper low diving into New England. This will bring subtly cooler
air into the region courtesy of easterly flow for Thursday and
Friday with highs in the 70 to 75 range from east to west. Potential
exists for a better threat for rain by late next weekend but long
range trends maintain a warmer than normal pattern across the Ohio
Valley in the 10-14 day period.
&&
.AVIATION (18Z TAF Issuance)...
Issued at 108 PM EDT Fri Oct 10 2025
Impacts:
- none
Discussion:
High pressure remains the dominant weather influence across the
state through the period keeping conditions VFR and winds below 10
kts. Satellite imagery shows high level clouds pushing in from the
northwest associated with a dying area of showers in Illinois. While
no precipitation is expected locally, expect a broken deck at 25000
ft through this evening.
There is an area of lower stratus along the approaching front which
should make its way into Central Indiana after 03z, bringing cigs
down into the 3000-5000ft range. There is a slight chance that cigs
briefly become MVFR overnight but confidence in this is low enough
to omit it from the TAF. No vis issues expected.
Light southerly winds this afternoon become light and variable
overnight. The front passes through the region overnight resulting
in winds shifting to the northeast after 15z tomorrow, still under
10 kts.
&&
.IND WATCHES/WARNINGS/ADVISORIES...None.
&&
$$
SHORT TERM...CM
LONG TERM...Ryan
AVIATION...CM

NWS IND Office Area Forecast Discussion