kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Fri, May 29
Sun, May 31
Forecast For

Saturday, May 30

Updated May 29, 7:09 PM EDT

NWS Alerts Active This Day

Flood Warning

May 29, 11:54 AM -> May 30, 2:00 PM
Severe Severity

Flood Warning issued May 29 at 10:54AM CDT until May 31 at 7:00PM CDT by NWS Paducah KY

Flood Advisory

May 30, 4:51 AM -> May 30, 8:00 AM
Minor Severity

Flood Advisory issued May 30 at 3:51AM CDT until May 30 at 7:00AM CDT by NWS Louisville KY

Flood Advisory

May 30, 5:16 AM -> May 30, 8:30 AM
Minor Severity

Flood Advisory issued May 30 at 4:16AM CDT until May 30 at 7:30AM CDT by NWS Louisville KY

Flood Advisory

May 30, 5:32 AM -> May 30, 8:45 AM
Minor Severity

Flood Advisory issued May 30 at 5:32AM EDT until May 30 at 8:45AM EDT by NWS Jackson KY

Flood Advisory

May 30, 5:35 AM -> May 30, 8:45 AM
Minor Severity

Flood Advisory issued May 30 at 5:35AM EDT until May 30 at 8:45AM EDT by NWS Jackson KY

Flash Flood Warning

May 30, 5:38 AM -> May 30, 8:30 AM
Severe Severity

Flash Flood Warning issued May 30 at 4:38AM CDT until May 30 at 7:30AM CDT by NWS Louisville KY

Flood Advisory

May 30, 5:46 AM -> May 30, 8:45 AM
Minor Severity

Flood Advisory issued May 30 at 4:46AM CDT until May 30 at 7:45AM CDT by NWS Louisville KY

Flood Advisory

May 30, 5:56 AM -> May 30, 9:00 AM
Minor Severity

Flood Advisory issued May 30 at 4:56AM CDT until May 30 at 8:00AM CDT by NWS Louisville KY

Flood Advisory

May 30, 6:26 AM -> May 30, 9:30 AM
Minor Severity

Flood Advisory issued May 30 at 5:26AM CDT until May 30 at 8:30AM CDT by NWS Louisville KY

Flood Advisory

May 30, 9:06 AM -> May 30, 12:15 PM
Minor Severity

Flood Advisory issued May 30 at 9:06AM EDT until May 30 at 12:15PM EDT by NWS Jackson KY

Flood Warning

May 30, 12:09 PM -> May 31, 2:15 PM
Severe Severity

Flood Warning issued May 30 at 11:09AM CDT until June 2 at 7:00AM CDT by NWS Paducah KY

Confidence
85%

Southern Kentucky Rain Meets Northern Sun and Breezy Winds

A split weather pattern will define Saturday for the Commonwealth. Southern and Western Kentucky will see periods of steady rain as a weak disturbance moves through the Tennessee Valley. Meanwhile, Northern and Eastern Kentucky will remain dry with a mix of sun and clouds, though breezy winds will develop statewide by evening.

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

High agreement on the overall synoptic setup and thermal profiles. The main uncertainty lies in the exact northern extent of the light precipitation and the peak magnitude of evening wind gusts.

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
Steady Afternoon Rain
Rain
81°/ 68°

Northwest Pennyrile

NUISANCE
Owensboro, Henderson, Morganfield
Morning Showers, Cloudy Afternoon
Rain
82°/ 68°

Southwest Pennyrile

NUISANCE
Hopkinsville, Madisonville, Princeton
A Soggy Saturday
Rain
79°/ 68°

Barren River

NUISANCE
Bowling Green, Glasgow, Franklin
Persistent Rain Likely
Rain
77°/ 67°

Louisville Metro

Louisville, La Grange, Shepherdsville
Dry and Breezy in the City
Cloudy
81°/ 63°

Lincoln Trail

NUISANCE
Elizabethtown, Bardstown, Leitchfield
Early Sprinkles, Then Clearing
Rain
79°/ 65°

Lake Cumberland

NUISANCE
Somerset, Columbia, Monticello
Morning Showers, Drier Afternoon
Rain
79°/ 63°

Northern Kentucky

Covington, Florence, Independence
Gray Skies and Breezy Evening
Cloudy
78°/ 58°

Inner Bluegrass

Lexington, Georgetown, Winchester
Sunny Intervals and Wind Gusts
Cloudy
79°/ 60°

Bluegrass Foothills

Richmond, Danville, Berea
Dry and Pleasant Afternoon
Cloudy
79°/ 61°

Northeast Kentucky

Ashland, Morehead, Grayson
Bright and Breezy Day
Sunny
80°/ 57°

Southeast Kentucky

Hazard, Pikeville, Harlan
Pleasant Spring Weather
Cloudy
80°/ 62°

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 shortwave tracks further north and moisture maximizes, rain totals in the south could exceed 0.75 inches, and light rain could spread into the Louisville and Lexington metros.

💨

The 'Bust' Scenario

If the mid-level dry slot is more aggressive, rain will be limited to light sprinkles even in the south, and cloud cover will break early, allowing temperatures to soar into the upper 80s.

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 I-65 Moisture Divide

Models disagree on how far north and east the rain shield will progress. The NAM suggests rain as far north as Cincinnati, while the GFS and Euro maintain a sharp cutoff near the Western Kentucky Parkway.

NAM
VS
GFS
VS
EURO
Why EURO Wins

The Euro's handling of the 850mb ridge over the Carolinas and the associated dry slot between 850-700mb is more meteorologically sound, effectively suppressing precipitation in the northern river counties.

Affected Regions
LOUISVILLE METRONORTHERN KYBLUEGRASS CORE

Evening Wind Magnitude

The GFS and NAM are significantly more aggressive with surface wind gusts than the Euro, predicting gusts near 30 mph as the boundary layer deepens and mixes.

NAM
VS
GFS
VS
EURO
Why GFS Wins

Given the tightening pressure gradient ahead of the approaching northern front, the GFS solution for efficient afternoon mixing and higher wind gusts is preferred over the calmer Euro.

Affected Regions
BLUEGRASS CORENORTHERN KYNORTHEAST KY

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 warm-core profile is established statewide with a well-mixed boundary layer. Lapse rates are near-standard adiabatic at 6.0-6.5 C/km.

Thermal Boundary

The freezing line is well north of the Great Lakes; the entire atmospheric column remains above freezing up to 13,000ft AGL.

Diurnal Trend

Standard diurnal curve, though daytime heating will be slightly muted in the southern counties due to overcast skies and 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

A dry cold front is expected to cross the Ohio River late Saturday evening, marked by a sharp wind shift and increased gust speeds.

Jet Stream Support

The region is positioned in the right-entrance region of a 110kt jet streak over the Great Lakes, providing broad support for the southern shortwave.

Energy Status

A compact shortwave trough is tracking through the Tennessee Valley, providing the primary lifting mechanism for the southern rain.

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

Saturated below 700mb in the south; significant dry slot (virga potential) in the north where dewpoint depressions exceed 15F.

Precipitation Character

Precipitation will be strictly stratiform; CAPE values near zero will preclude any convective or lightning threats.

Flooding Context

No hydrologic risk as soils are currently dry and rainfall rates will remain low (under 0.15 in/hr).

Celestial Almanac

Moon Phase

Full Moon

99% Illumination
Moonrise
8:03 PM
Moonset
5:46 AM
Purchase Area
Sunrise
6:38 AM
Sunset
9:08 PM
Civil Dawn
6:08 AM
Civil Dusk
9:38 PM
Northwest Pennyrile
Sunrise
6:30 AM
Sunset
9:04 PM
Civil Dawn
5:59 AM
Civil Dusk
9:34 PM
Southwest Pennyrile
Sunrise
6:34 AM
Sunset
9:03 PM
Civil Dawn
6:04 AM
Civil Dusk
9:33 PM
Barren River
Sunrise
6:30 AM
Sunset
8:59 PM
Civil Dawn
6:00 AM
Civil Dusk
9:29 PM
Louisville Metro
Sunrise
6:23 AM
Sunset
9:00 PM
Civil Dawn
5:52 AM
Civil Dusk
9:31 PM
Lincoln Trail
Sunrise
6:25 AM
Sunset
8:59 PM
Civil Dawn
5:55 AM
Civil Dusk
9:29 PM
Lake Cumberland
Sunrise
6:22 AM
Sunset
8:52 PM
Civil Dawn
5:52 AM
Civil Dusk
9:22 PM
Northern Kentucky
Sunrise
6:16 AM
Sunset
8:57 PM
Civil Dawn
5:45 AM
Civil Dusk
9:29 PM
Inner Bluegrass
Sunrise
6:19 AM
Sunset
8:54 PM
Civil Dawn
5:48 AM
Civil Dusk
9:25 PM
Bluegrass Foothills
Sunrise
6:19 AM
Sunset
8:53 PM
Civil Dawn
5:48 AM
Civil Dusk
9:23 PM
Northeast Kentucky
Sunrise
6:10 AM
Sunset
8:48 PM
Civil Dawn
5:39 AM
Civil Dusk
9:19 PM
Southeast Kentucky
Sunrise
6:16 AM
Sunset
8:47 PM
Civil Dawn
5:46 AM
Civil Dusk
9:17 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.