Area Forecast Discussion
Issued by NWS Northern Indiana
Issued by NWS Northern Indiana
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697 FXUS63 KIWX 132310 AFDIWX Area Forecast Discussion National Weather Service Northern Indiana 610 PM EST Fri Feb 13 2026 .KEY MESSAGES... - Patchy fog possible again tonight. - 20-40% chances for rain Saturday night into Sunday morning, mainly along and south of US 30. Amounts less than 0.10". - Highs in the 40s this weekend; several days with highs in the 50s likely next week. - An active weather pattern returns with additional chances for rain and gusty winds for the later half of next week. && .DISCUSSION... Issued at 147 PM EST Fri Feb 13 2026 High pressure over much of the eastern CONUS is bringing quiet and dry conditions across our forecast area today. Skies are expected to remain mostly clear overnight, which sets the stage for another night with fog potential. Much like last night, winds are expected to diminish after sunset. Patchy dense radiation fog will be possible across the area, much like the past few nights. Models vary widely with visibility on Saturday morning. My only hesitation is that dewpoint depressions may end up being a few degrees more than what they have been over the past few nights, which may limit fog development. Confidence is low but the best opportunity for any fog to develop would be between 06-13Z Saturday. Over the past few days, have been mentioning the presence of a strong upper level trough and associated surface low across the southern US. Well now, it appears that this system will be so far south that it will be unable to provide adequate moisture to support anything more than very light rain. In fact, high-res model guidance continues to trend downwards on both precip chances and QPF. South of US 30 will be on the far northern periphery of the system, with light rain possible late Saturday into early Sunday. Amounts will be vry light, only a few hundredths in most places, if any rain is observed at all. With mid level dry air to overcome, it may just end up as virga. Low chances for rain (15-25%) still exist for late Saturday into Sunday morning, although best chances now will be south of US 24. Areas along and north of US 30 will stay dry. A strong upper level ridge is then expected to build across the central and eastern CONUS into early next week. Confidence continues to increase for well above normal temperatures for the early and middle parts of next week. The latest CPC 6-10 Day Temperature Outlook continues to highlight high probabilities (70-90% chances) for above normal temperatures. Ensemble models Highs climb into the 40s over the weekend and then into the 50s by early next week. The warmest day will likely be Wednesday before the ridge flattens out; widespread highs in the low 50s are possible along and south of US 30 as a warm front lifts north. Highs in the 50s are likely; some locations south of US 24 may even make a run at 60 degrees! A more active pattern looks to resume with gusty winds, rain, and maybe even some embedded thunder developing along and north of the aforementioned warm front. Above normal temperatures continue through at least late next week with perhaps additional chances for rain with a system on Thursday/Friday. && .AVIATION /00Z TAFS THROUGH 00Z SUNDAY/... Issued at 610 PM EST Fri Feb 13 2026 High pressure and dry air will maintain primarily VFR conditions this period. There remains a chance for some patchy BR around sunrise similar to this morning. However, moisture profiles are highly marginal and visibilities could remain above 6SM. High clouds begin to increase Sat evening ahead of the next system but no impacts are anticipated. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...None. OH...None. MI...None. MARINE...None. && $$ DISCUSSION...Johnson AVIATION...AGD