kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Tue, Jun 23
Thu, Jun 25
Forecast For

Wednesday, June 24

Updated Jun 24, 7:18 AM EDT
Confidence
85%

Warm Summer Day with Isolated Morning Sprinkles

High pressure will maintain dry and seasonally warm conditions for the vast majority of Kentucky. A weak upper-level disturbance will bring a low-end chance for morning sprinkles to the far western and eastern regions, though no measurable rainfall is expected.

Why is this happening?
Technical explanation of the atmospheric setup
Confidence Assessment

High confidence in temperatures and the lack of impactful precipitation. Minor uncertainty exists regarding the exact coverage of non-measurable morning sprinkles and cloud ceilings.

Get Personalized Forecasts

Choose which region in Kentucky you're interested in and we'll always show you that one first. You can change your selected region by clicking the "Star" icon on any regional forecast.

Purchase Area

NUISANCE
Paducah, Murray, Mayfield
Morning Clouds and Sprinkles
Cloudy
82°/ 62°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Pleasant and Mostly Sunny
Sunny
81°/ 61°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Warm and Dry Afternoon
Sunny
82°/ 62°

Barren River

Bowling Green, Glasgow, Franklin
Filtered Sunshine and Low Humidity
Cloudy
81°/ 61°

Louisville Metro

Louisville, La Grange, Shepherdsville
Dry and Seasonably Warm
Cloudy
82°/ 62°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Comfortable Summer Weather
Sunny
80°/ 60°

Lake Cumberland

Somerset, Columbia, Monticello
Partly Cloudy and Warm
Cloudy
81°/ 59°

Northern Kentucky

Covington, Florence, Independence
Sunshine Dominates the North
Sunny
80°/ 60°

Inner Bluegrass

Lexington, Georgetown, Winchester
Bright and Breezy Bluegrass
Sunny
80°/ 61°

Bluegrass Foothills

Richmond, Danville, Berea
Partly Cloudy Skies
Cloudy
80°/ 58°

Northeast Kentucky

Ashland, Morehead, Grayson
Clear and Sunny Mountain Air
Sunny
81°/ 56°

Southeast Kentucky

NUISANCE
Hazard, Pikeville, Harlan
Isolated Morning Sprinkles
Cloudy
79°/ 57°

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 low-level moisture recovery is faster than expected, the weak shortwave energy could produce a few localized areas of light, measurable rain (0.01-0.05 inches) in the far west and east.

💨

The 'Bust' Scenario

The prevailing high-pressure subsidence completely suppresses the weak shortwave energy, resulting in a cloud-free day with zero precipitation across the entire state.

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 Virga War

The NAM is aggressively forecasting high probabilities (80%) of light precipitation in the far west and east, while the GFS and ECMWF maintain a nearly dry profile with PoPs under 10%.

NAM
VS
GFS
VS
ECMWF
Why BLEND Wins

While the NAM captures the subtle shortwave energy better, its high PoP is likely overdone given the lack of low-level saturation. A blend acknowledges the moisture but keeps totals at a trace.

Affected Regions
PURCHASESOUTHEAST COALFIELDS

Cloud Cover Discrepancy

GFS forecasts nearly 100% sunshine statewide, whereas the ECMWF and NAM suggest a persistent mid-level cloud deck around 5,000-8,000 feet.

GFS
VS
ECMWF
VS
NAM
Why EURO Wins

The ECMWF typically handles mid-level moisture transport more realistically than the GFS, which often over-dries the mid-troposphere in summer ridging setups.

Affected Regions
LOUISVILLE METROBLUEGRASS COREBARREN RIVER

Technical Analysis

This section provides a deep, physics-based explanation of the weather. Our AI system analyzed multiple atmospheric layers and variables from all available models to synthesize this technical overview.

Below you'll find detailed breakdowns of the atmospheric dynamics that are driving today's forecast, including thermodynamics, kinematics, and hydrology.

Thermodynamics

Stability & Temperatures

How temperature changes with altitude. This determines whether precipitation falls as rain, snow, sleet, or freezing rain based on the vertical temperature profile.

Thermal Profile Overview

A standard summer adiabatic lapse rate is present with surface temperatures in the low 80s and 850mb temperatures near 15C. A weak subsidence inversion exists near 700mb.

Thermal Boundary

The nearest thermal boundary is a stalled frontal zone over the Great Lakes, keeping Kentucky entirely within a stable warm sector.

Diurnal Trend

Strictly diurnal heating; temperatures will rise efficiently after sunrise, peaking between 3:00 PM and 5:00 PM local time.

Kinematics

Wind & Energy

Wind patterns and atmospheric energy. Frontal passages, jet stream positioning, and vorticity tell us where and when lift will generate precipitation.

Frontal Passage

None. Winds will remain light and variable under the influence of a broad 1020mb surface high.

Jet Stream Support

A 90kt jet streak is located well to the north over Michigan and Ontario, providing no significant lift or divergence over the Ohio Valley.

Energy Status

A compact but weak shortwave trough is expected to traverse the southern periphery of the ridge, affecting the Purchase area early before weakening.

Hydrology

Moisture & Precipitation

Moisture content and precipitation character. This reveals whether the atmosphere is saturated enough to produce precipitation, and what type to expect (steady vs. bursts).

Saturation Status

The column is mostly dry below 850mb. Mid-level saturation is noted between 700mb and 500mb, which will support cloud cover but increase virga risk.

Precipitation Character

Stratiform trace showers or light drizzle if any moisture penetrates the dry low-level sub-cloud layer.

Flooding Context

No flooding risk. Hydrologic conditions are stable with zero measurable rain expected.

Winter Physics

Accumulation & Layers

Specific physical factors affecting winter weather, including the vertical melt/freeze profile and snow quality.

Layer Analysis

Not applicable.

Crystal Habit

Not applicable.

Road Impact

Not applicable.

Severe Risk

Instability & Shear

Atmospheric ingredients required for severe thunderstorms, including available fuel (CAPE) and storm organization (shear).

Shear Analysis

Shear is negligible (less than 15 knots in the 0-6km layer), preventing any storm organization.

Instability Context

CAPE is effectively zero across the state due to a lack of low-level moisture return and mid-level capping.

Primary Threat

None.

Celestial Almanac

Moon Phase

Waxing Gibbous

75% Illumination
Moonrise
4:51 PM
Moonset
2:45 AM
Purchase Area
Sunrise
6:36 AM
Sunset
9:19 PM
Civil Dawn
6:05 AM
Civil Dusk
9:50 PM
Northwest Pennyrile
Sunrise
6:28 AM
Sunset
9:15 PM
Civil Dawn
5:57 AM
Civil Dusk
9:46 PM
Southwest Pennyrile
Sunrise
6:33 AM
Sunset
9:14 PM
Civil Dawn
6:02 AM
Civil Dusk
9:44 PM
Barren River
Sunrise
6:28 AM
Sunset
9:10 PM
Civil Dawn
5:57 AM
Civil Dusk
9:41 PM
Louisville Metro
Sunrise
6:21 AM
Sunset
9:11 PM
Civil Dawn
5:50 AM
Civil Dusk
9:43 PM
Lincoln Trail
Sunrise
6:24 AM
Sunset
9:10 PM
Civil Dawn
5:52 AM
Civil Dusk
9:41 PM
Lake Cumberland
Sunrise
6:20 AM
Sunset
9:03 PM
Civil Dawn
5:49 AM
Civil Dusk
9:34 PM
Northern Kentucky
Sunrise
6:14 AM
Sunset
9:09 PM
Civil Dawn
5:42 AM
Civil Dusk
9:41 PM
Inner Bluegrass
Sunrise
6:17 AM
Sunset
9:05 PM
Civil Dawn
5:46 AM
Civil Dusk
9:37 PM
Bluegrass Foothills
Sunrise
6:17 AM
Sunset
9:04 PM
Civil Dawn
5:46 AM
Civil Dusk
9:35 PM
Northeast Kentucky
Sunrise
6:08 AM
Sunset
8:59 PM
Civil Dawn
5:36 AM
Civil Dusk
9:31 PM
Southeast Kentucky
Sunrise
6:14 AM
Sunset
8:58 PM
Civil Dawn
5:43 AM
Civil Dusk
9:29 PM

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.