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Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Sat, Aug 1
Mon, Aug 3
Forecast For

Sunday, August 2

Updated Aug 2, 7:15 AM EDT

NWS Alerts Active This Day

Special Weather Statement

Aug 1, 9:33 PM -> Aug 1, 10:00 PM
Moderate Severity

Special Weather Statement issued August 1 at 9:33PM EDT by NWS Jackson KY

Severe Thunderstorm Warning

Aug 1, 9:38 PM -> Aug 1, 10:00 PM
Severe Severity

Severe Thunderstorm Warning issued August 1 at 9:38PM EDT until August 1 at 10:00PM EDT by NWS Jackson KY

Special Weather Statement

Aug 1, 9:44 PM -> Aug 1, 10:15 PM
Moderate Severity

Special Weather Statement issued August 1 at 9:44PM EDT by NWS Jackson KY

Special Weather Statement

Aug 1, 11:32 PM -> Aug 2, 12:00 AM
Moderate Severity

Special Weather Statement issued August 1 at 11:32PM EDT by NWS Jackson KY

Confidence
85%

A Soggy and Humid Sunday Across the Commonwealth

A damp and muggy Sunday is in store for Kentucky as multiple weak atmospheric disturbances move through a moisture-saturated airmass. Expect widespread light to moderate rain showers throughout the day, with the steadiest precipitation occurring across Southern and Eastern Kentucky. Temperatures will remain unseasonably mild for early August due to thick cloud cover and persistent rainfall.

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

Strong model agreement on high precipitation chances and the absence of severe weather risks. Minor uncertainty remains regarding the exact timing of clearing in the west and localized rainfall totals in the eastern mountains.

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 Showers, Late Day Drying
Rain
77°/ 69°

Northwest Pennyrile

NUISANCE
Owensboro, Henderson, Morganfield
Overcast with Steady Showers
Rain
76°/ 68°

Southwest Pennyrile

NUISANCE
Hopkinsville, Madisonville, Princeton
A Gray and Damp Day
Rain
75°/ 67°

Barren River

NUISANCE
Bowling Green, Glasgow, Franklin
Showers Linger into the Evening
Rain
76°/ 68°

Louisville Metro

NUISANCE
Louisville, La Grange, Shepherdsville
Damp and Mild for the Metro
Rain
76°/ 68°

Lincoln Trail

NUISANCE
Elizabethtown, Bardstown, Leitchfield
Afternoon Rain Likely
Rain
75°/ 67°

Lake Cumberland

NUISANCE
Somerset, Columbia, Monticello
Persistent Showers on the Plateau
Rain
78°/ 68°

Northern Kentucky

NUISANCE
Covington, Florence, Independence
Cool and Cloudy with Light Rain
Rain
74°/ 67°

Inner Bluegrass

NUISANCE
Lexington, Georgetown, Winchester
Soggy Day in the Bluegrass
Rain
75°/ 67°

Bluegrass Foothills

NUISANCE
Richmond, Danville, Berea
Light Rain and Low Clouds
Rain
77°/ 66°

Northeast Kentucky

NUISANCE
Ashland, Morehead, Grayson
Persistent Rain for Ashland and Morehead
Rain
81°/ 69°

Southeast Kentucky

NUISANCE
Hazard, Pikeville, Harlan
Steady Mountain Rain
Rain
78°/ 67°

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 the NAM's terrain-enhanced forcing verifies, localized totals in the Lake Cumberland and Southeast Coalfields could exceed 0.50 inches, with persistent drizzle lingering through Monday morning.

💨

The 'Bust' Scenario

If a faster-moving trough axis (as suggested by the ECMWF) moves through, clearing could begin in Western Kentucky by mid-afternoon, limiting rainfall totals to under 0.10 inches for many.

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 Cumberland Plateau Bullseye

The NAM predicts a significant localized rainfall maximum (0.50"+) in the Lake Cumberland region due to 'Plateau Injection,' while the GFS and Euro maintain much lighter synoptic totals (0.10-0.15").

NAM
VS
GFS
VS
EURO
Why EURO Wins

In a low-instability environment (0 CAPE), the NAM's tendency for localized 'bullseye' artifacts is high. The global models' more conservative approach to synoptic lift is more reliable for this August setup.

Affected Regions
LAKE CUMBERLANDBARREN RIVER

Temperature Floor Dispute

The GFS is aggressively cool, suggesting some Northern KY areas may struggle to hit 70F, while the Euro and NAM favor mid-70s.

GFS
VS
EURO
VS
NAM
Why BLEND Wins

GFS often over-cools during light 'smear' precipitation events; however, the lack of sun suggests a very flat diurnal curve. A blend between the GFS and Euro provides the most realistic thermal profile.

Affected Regions
NORTHERN KYBLUEGRASS CORELOUISVILLE METRO

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 moist-adiabatic vertical temperature stack is present from the surface through 600mb. Deep moisture has neutralized the boundary layer, resulting in a very high surface humidity and no significant temperature inversions.

Thermal Boundary

No freezing line or significant thermal boundaries are present; the entire column remains well above 60F across the Commonwealth.

Diurnal Trend

A significantly muted diurnal curve is expected. Highs will only be 5-8 degrees warmer than the morning lows due to near-total cloud cover and evaporative cooling during rain.

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

No true synoptic-scale front will pass; a weak surface trough shifts east during the afternoon, marked by a slight wind shift from South to Southwest.

Jet Stream Support

Broad-scale divergence is provided by the right-entrance region of a 90kt jet streak over the Great Lakes.

Energy Status

Weak, disorganized vorticity pulses are moving through the broad cyclonic flow, acting as the primary trigger for rain showers.

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 atmospheric column is deeply saturated with RH values exceeding 90% below 700mb. Dewpoint depressions are minimal, so virga is not a concern.

Precipitation Character

Precipitation will be strictly stratiform. Expect steady, light to moderate rain showers without the threat of lightning or thunder.

Flooding Context

Hydrologic risk is negligible. Rainfall rates are well below flash flood thresholds, though minor ponding is possible in the Southeast Coalfields.

Celestial Almanac

Moon Phase

Waning Gibbous

85% Illumination
Moonrise
10:37 PM
Moonset
10:59 AM
Purchase Area
Sunrise
7:01 AM
Sunset
9:02 PM
Civil Dawn
6:32 AM
Civil Dusk
9:31 PM
Northwest Pennyrile
Sunrise
6:53 AM
Sunset
8:57 PM
Civil Dawn
6:24 AM
Civil Dusk
9:26 PM
Southwest Pennyrile
Sunrise
6:57 AM
Sunset
8:57 PM
Civil Dawn
6:28 AM
Civil Dusk
9:26 PM
Barren River
Sunrise
6:53 AM
Sunset
8:53 PM
Civil Dawn
6:24 AM
Civil Dusk
9:22 PM
Louisville Metro
Sunrise
6:47 AM
Sunset
8:53 PM
Civil Dawn
6:18 AM
Civil Dusk
9:22 PM
Lincoln Trail
Sunrise
6:49 AM
Sunset
8:52 PM
Civil Dawn
6:20 AM
Civil Dusk
9:21 PM
Lake Cumberland
Sunrise
6:45 AM
Sunset
8:46 PM
Civil Dawn
6:16 AM
Civil Dusk
9:15 PM
Northern Kentucky
Sunrise
6:40 AM
Sunset
8:50 PM
Civil Dawn
6:10 AM
Civil Dusk
9:20 PM
Inner Bluegrass
Sunrise
6:42 AM
Sunset
8:48 PM
Civil Dawn
6:13 AM
Civil Dusk
9:17 PM
Bluegrass Foothills
Sunrise
6:42 AM
Sunset
8:46 PM
Civil Dawn
6:13 AM
Civil Dusk
9:15 PM
Northeast Kentucky
Sunrise
6:34 AM
Sunset
8:41 PM
Civil Dawn
6:05 AM
Civil Dusk
9:11 PM
Southeast Kentucky
Sunrise
6:39 AM
Sunset
8:41 PM
Civil Dawn
6:10 AM
Civil Dusk
9:09 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.