Area Forecast Discussion
Issued by NWS Indianapolis, IN
Issued by NWS Indianapolis, IN
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029 FXUS63 KIND 142254 AFDIND Area Forecast Discussion National Weather Service Indianapolis IN 554 PM EST Fri Nov 14 2025 .KEY MESSAGES... - Widespread highs in the 70s on Saturday along with wind gusts up to 35 mph. - Mostly dry over the weekend with increasing rain chances late Monday into Tuesday. - Slightly cooler, but generally seasonable temperatures late this weekend through the middle of next week. && .SHORT TERM (This evening through Saturday)... Issued at 240 PM EST Fri Nov 14 2025 Pleasant afternoon ongoing across the region with the earlier cloud cover associated with an area of isentropic lift having largely shifted to the southeast of central Indiana. 18Z temperatures had risen into the mid and upper 60s over much of the forecast area courtesy of a mild southwesterly breeze. After the chilly weather from earlier this week...much warmer air will briefly make a reappearance across the Ohio Valley through Saturday as ridging aloft coincides with a strong southwest flow and warm advection to bring well above normal temperatures for the next 24 hours. This will be only further enhanced by the approach of a cold front from the upper Midwest that will add a compressional heating component to the airmass. The front will swing through the region Saturday afternoon with windy conditions ahead of the boundary as the surface pressure gradient tightens. Temperatures are already nearing earlier forecast highs and expect them to outpace guidance for the rest of the afternoon with abundant sunshine and increasing warm advection. Temps will peak from 65 to 70 over much of the forecast area with the potential for lower 70s in the lower Wabash Valley. Skies will be mainly clear heading into the evening and early overnight but a further strengthening of the warm advection regime aided by increasing boundary layer flow will enable clouds to increase late tonight into Saturday morning as low level moisture is drawn north. The mainly cloudy skies will persist until the frontal passage in the afternoon with the potential for some sunshine during the latter pat of the day with an axis of deeper subsidence immediately following the front. The overall lack of deep moisture accompanying the boundary in addition to the bulk of the forcing aloft remaining well to the northeast of the forecast area will significantly limit any potential for showers Saturday afternoon. Cannot rule out a sprinkle or stray light shower but chances appear far too low for inclusion in the forecast. Winds will be notable on Saturday as gusts peak at 30 to 35mph in the afternoon. Highest gusts are likely to focus over the northeast half of the forecast area. Temps...with the boundary layer not decoupling tonight and the infusion of warm advection into the region...lows will hold in the 50s. Low level thermals remain strongly supportive of highs rising into the lower 70s over much of the forecast area for Saturday...and there is a chance that temps may outpace guidance again based on the thoughts above. The record high for Indy for Saturday is 74 from 1971. && .LONG TERM (Saturday night through Friday)... Issued at 240 PM EST Fri Nov 14 2025 Saturday night through Monday... Quiet weather conditions are expected early in the extended with surface high pressure building in behind a departing cold front late Saturday night. A stray shower cannot be ruled out as the boundary pushes through during the evening, but very weak forcing should keep most areas dry. Cold air advection will return temperatures to near seasonal. Temperatures Sunday night into Monday morning are likely going to be cooler than normal though due to weakening winds from surface high pressure. Look for lows in the upper 20s to low 30s. It is not out of the question that some areas across the north could fall into the mid 20s depending on how quickly the surface ridge axis moves in. Monday night through Tuesday... Confidence in the forecast begins to decrease some during this period as guidance depicts a weakening shortwave approaching the region. Models are in good agreement regarding the upper level pattern in general with only slight differences. However, these differences in exact timing/evolution of the system combined with a relatively sharp gradient in temperatures across the area leads to lower confidence, mainly precipitation amounts. Sufficient forcing from the approaching system and warm air advection surging moisture northward is likely going to promote precipitation over much of the area though. Precipitation type should remain all rain as warm air advection keeps temperatures warmer. Tuesday night onward... Confidence decreases further towards the end of the long term period due to diverging model solutions, especially late next week. Mostly quiet weather is expected Tuesday night into Wednesday as ensemble guidance shows surface high pressure building near the Great Lakes Region. Slightly drier air should also filter in behind the departing system. Low POPs remain midweek as a strengthening LLJ ahead of a more organized upper wave approaching the central CONUS begins to pump moisture northward. Rain chances increase again towards the end of the week once the aforementioned system moves into the region, but uncertainty remains high due a considerable in model output. Heavy rain does appear possible for portions of the central CONUS given anomalous deep moisture advecting northward combined with favorable dynamics. However, the loose agreement that ensemble guidance is showing favors locations further south and west of central Indiana. && .AVIATION (00Z TAF Issuance)... Issued at 553 PM EST Fri Nov 14 2025 Impacts: - Southwest wind gusts peaking at 25 to 30kt Saturday - Near LLWS conditions overnight - Low chance for MVFR ceilings Saturday morning Discussion: Winds will diminish a bit this evening. Winds aloft will strengthen overnight and will bring conditions close to non-convective LLWS criteria. Will leave out for now and continue to monitor. Clouds will develop and increase overnight with mid clouds giving way to lower VFR clouds by 12Z. Cannot rule out ceilings falling at times to below 3000FT at times Saturday morning, but for now feel odds are too low to mention. Will have a scattered lower layer. Winds will increase on Saturday as a cold front approaches, with gusts over 25kt likely. Winds will become more westerly late in the period. && .IND WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...Ryan LONG TERM...Melo AVIATION...50