Wednesday, March 18
NWS Alerts Active This Day
Special Weather Statement
Special Weather Statement issued March 17 at 5:00PM EDT by NWS Charleston WV
Scattered snow showers will continue this evening, with some locally heavier snow showers expected to cause sudden reductions in visibility. A few slick spots could also develop on area roadways, primarily on bridges, overpasses, and untreated surfaces. If traveling, please allow for extra time to reach your destination and be prepared for rapidly changes in visibility.
Special Weather Statement
Special Weather Statement issued March 17 at 5:00PM EDT by NWS Jackson KY
Scattered snow showers, moderate at times, will lead to minor snow accumulations of a dusting to a half an inch. Slick spots on untreated roadways and overpasses remain possible. Heavier snow showers will also briefly reduce visibility to less than a half mile. Travelers are urged to use caution.
Special Weather Statement
Special Weather Statement issued March 17 at 8:54PM EDT by NWS Louisville KY
A round of light snow is expected across southern Indiana and north central Kentucky from the pre-dawn hours through mid to late morning. Snowfall will be light, but with temperatures in the upper 20s and low 30s for much of the time, some light accumulations of a half inch or less are possible. A few slick spots may develop on area roadways for the morning commute. Temperatures rise above freezing by late morning.
How Did We Do?
Comparing our AI forecast to actual observations from Wednesday, March 18, 2026.
Regional Assessments
Purchase Area
Northwest Pennyrile
Southwest Pennyrile
Barren River
Louisville Metro
Lincoln Trail
Lake Cumberland
Northern Kentucky
Inner Bluegrass
Bluegrass Foothills
Northeast Kentucky
Southeast Kentucky
Chilly Morning Frost with a Passing Wintry Mix Out West
A weak spring disturbance will cross Kentucky on Wednesday, bringing a split in weather conditions. The western and central regions will see a brief window of light rain and snow showers during the morning, though minimal to no accumulation is expected. Meanwhile, the eastern half of the state will remain dry but cold, with significant frost likely during the morning commute before skies begin to clear late.
Confidence Assessment
Confidence is high on a cold morning for all, but significant disagreement remains regarding the ability of light precipitation to overcome the dry air in the lower atmosphere.
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Purchase Area
A few light rain showers will move through during the morning hours. Skies will clear by mid-afternoon as temperatures climb to near 60 degrees.
Northwest Pennyrile
Expect a mix of rain and snow between 6 AM and 10 AM. Accumulations will be around 0.1 inches and limited to grassy surfaces.
Southwest Pennyrile
Light rain and snow will move through the area during the morning commute. No accumulation is expected on roads, with temperatures warming into the mid-50s.
Barren River
A quick mix of rain and snow is possible during the morning hours. Skies will remain mostly cloudy through the day with highs reaching 52.
Louisville Metro
Mostly cloudy skies will dominate the day with a few stray sprinkles or flakes possible. No significant impacts are expected as temperatures reach 50 degrees.
Lincoln Trail
Expect a cold, cloudy morning with a few flurries or light rain showers possible along the Escarpment. Accumulations are not expected.
Lake Cumberland
A cold morning near 26 degrees will lead into a cloudy and cool afternoon. The area is expected to remain dry.
Northern Kentucky
Cold and bright conditions will prevail with plenty of sunshine through the day. Morning wind chills will be in the teens.
Inner Bluegrass
Expect a hard frost in the morning with temperatures in the low 20s. The afternoon will be sunny with a high of 46.
Bluegrass Foothills
Sunshine will prevail despite some high-level clouds moving in late in the day. Morning temperatures will be well below freezing.
Northeast Kentucky
Ashland and surrounding areas will see the state's lowest temperatures near 21 degrees. The day will stay sunny and dry.
Southeast Kentucky
A calm and dry day is in store for the mountains. Frost will be widespread in the valleys at sunrise.
Possible Outcomes
Weather forecasting involves uncertainty. Below are two scenarios representing the range of possible outcomes: the "Boom" scenario shows the worst-case/highest-impact result if conditions align unfavorably, while the "Bust" scenario shows the best-case/lowest-impact result if the forecast doesn't materialize as expected.
The 'Boom' Scenario
If moisture arrival coincides perfectly with the morning cold pool and the 'warm nose' aloft is weaker than modeled, a slushy 0.5 to 1.0 inch of snow could accumulate on grassy surfaces across the Pennyrile and Lincoln Trail regions.
The 'Bust' Scenario
If the dry layer remains as stout as the NAM suggests, the entire state stays dry with nothing more than 'virga' (rain evaporating before hitting the ground) and increased cloud cover.
Model Disagreements
When models disagree, a call must be made to determine the most likely outcome. This decision is based on a combination of factors including model performance, historical data, and the models general accounting of each climatic region of Kentucky.
The Boundary Layer Saturation Scuffle
The NAM remains aggressively dry, suggesting the sub-cloud layer will never fully saturate, while the GFS and Euro show enough moisture for light measurable precipitation.
Why EURO Wins
The Euro provides a consistent middle ground, acknowledging the dry air but showing enough isentropic lift to produce light measurable rain/snow in the west.
Morning Minimum Temperature Divergence
The NAM and GFS are significantly colder in the eastern valleys (21-24°F) compared to the more moderate Euro (28-30°F).
Why NAM Wins
The NAM handles nocturnal radiational cooling and valley cold-air drainage better in high-pressure regimes.
Celestial Almanac
New Moon
Purchase Area
Northwest Pennyrile
Southwest Pennyrile
Barren River
Louisville Metro
Lincoln Trail
Lake Cumberland
Northern Kentucky
Inner Bluegrass
Bluegrass Foothills
Northeast Kentucky
Southeast Kentucky
Dive Deeper Into the Models
This forecast is a synthesis of raw data from the NAM, GFS, ECMWF, and GEM models. These models provide detailed atmospheric analyses including 500mb vorticity, precipitation rates, and more. You can take a look at the raw model data by clicking the links below.