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Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Thu, May 28
Sat, May 30
Forecast For

Friday, May 29

Updated May 29, 7:14 AM EDT

NWS Alerts Active This Day

Flood Warning

May 28, 11:31 AM -> May 29, 1:45 PM
Severe Severity

Flood Warning issued May 28 at 10:31AM CDT until June 1 at 1:00AM CDT by NWS Paducah KY

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

Confidence
85%

Southern Rain Surge Contrasts with Sunny Northern Skies

A split-weather pattern will dominate the Commonwealth on Friday. A weak southern-stream shortwave will trigger widespread light to moderate rain showers across Western and South-Central Kentucky. Meanwhile, Northern and Eastern Kentucky will remain under the influence of a departing high-pressure system, resulting in mostly sunny to partly cloudy skies and warm temperatures.

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

High confidence exists in the temperature forecast and the dry conditions for Eastern Kentucky. Moderate uncertainty remains regarding the northern extent of the rain shield and localized totals in the southwest.

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
Periods of Rain Throughout the Day
Rain
75°/ 68°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Cloudy and Warm with Stray Showers
Cloudy
82°/ 65°

Southwest Pennyrile

NUISANCE
Hopkinsville, Madisonville, Princeton
Steadiest Rain in the State
Rain
79°/ 68°

Barren River

NUISANCE
Bowling Green, Glasgow, Franklin
Evening Rain Showers Likely
Rain
81°/ 65°

Louisville Metro

Louisville, La Grange, Shepherdsville
Dry but Mostly Cloudy
Cloudy
80°/ 62°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Cloudy with a Stray Evening Shower
Cloudy
80°/ 62°

Lake Cumberland

NUISANCE
Somerset, Columbia, Monticello
Showers Arriving Late
Rain
82°/ 62°

Northern Kentucky

Covington, Florence, Independence
Plenty of Sunshine and Warm
Sunny
79°/ 56°

Inner Bluegrass

Lexington, Georgetown, Winchester
Sunny and Pleasant Friday
Sunny
79°/ 58°

Bluegrass Foothills

Richmond, Danville, Berea
Warm with Filtered Sunshine
Sunny
80°/ 58°

Northeast Kentucky

Ashland, Morehead, Grayson
Bright and Warm in the Mountains
Sunny
81°/ 55°

Southeast Kentucky

Hazard, Pikeville, Harlan
Warm Mountain Sunshine
Sunny
82°/ 56°

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 slightly further north and moisture overcomes the mid-level dry air, steady rain could reach the Louisville and Lexington metros, with totals in the Southwest Pennyrile exceeding 1.25 inches.

💨

The 'Bust' Scenario

If the dry air is more robust, rain may struggle to measure east of Paducah, resulting in nothing more than scattered sprinkles and 'virga' for the Barren River and Lake Cumberland regions.

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 Cloud Cover Boundary

Euro guidance suggests nearly 100 percent cloud cover for Central Kentucky, while GFS and NAM maintain mostly sunny conditions for the Bluegrass Core.

EURO
VS
GFS
VS
NAM
Why NAM Wins

NAM thermal profiles suggest the mid-level dry air will be slower to erode than the Euro suggests, allowing for more sunshine in the eastern half of the state through the afternoon.

Affected Regions
BLUEGRASS CORELOUISVILLE METRONORTHERN KY

The Southwest Soaking Conflict

The NAM is aggressively forecasting a bullseye of nearly 1.00 inch of rain for the Southwest Pennyrile, while the GFS remains significantly drier with less than 0.10 inch, and the Euro offers a middle-ground solution near 0.40 inch.

NAM
VS
GFS
VS
EURO
Why EURO Wins

The NAM's 'Bullseye Effect' often over-forecasts localized totals in stratiform setups, while the GFS 'Smear Effect' likely under-represents the moisture surge. The Euro provides a consistent synoptic middle ground for rainfall intensity.

Affected Regions
SOUTHWEST PENNYRILEPURCHASEBARREN 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 adiabatic lapse rate is present across most regions. Profiles become moist-neutral in the far west as the column saturates from the top down. No significant inversions are present.

Thermal Boundary

The primary moisture boundary is stalled along the Muldraugh Escarpment, separating dew points in the upper 60s (West) from the upper 50s (East).

Diurnal Trend

A normal diurnal curve is expected, though it will be dampened in the west due to cloud cover and precipitation. Eastern valleys will see efficient radiational cooling tonight.

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 surface front is present. The event is entirely driven by a mid-level shortwave and isentropic lift.

Jet Stream Support

Moderate support from the left-exit region of a 250mb jet streak provides synoptic-scale divergence over the Purchase and Pennyrile.

Energy Status

A compact area of positive vorticity (0.0005 units) is pivoting through the Tennessee Valley.

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 fully saturated below 400mb in the Purchase. Large dew point depressions remain below 700mb in the Bluegrass, creating a high risk of virga.

Precipitation Character

Stratiform rain. Very low CAPE values will prevent convective bursts or lightning.

Flooding Context

No flooding risk. Soils are currently under-saturated, and rainfall rates will remain manageable.

Celestial Almanac

Moon Phase

Waxing Gibbous

97% Illumination
Moonrise
--:--
Moonset
5:12 AM
Purchase Area
Sunrise
6:38 AM
Sunset
9:07 PM
Civil Dawn
6:08 AM
Civil Dusk
9:37 PM
Northwest Pennyrile
Sunrise
6:30 AM
Sunset
9:03 PM
Civil Dawn
6:00 AM
Civil Dusk
9:34 PM
Southwest Pennyrile
Sunrise
6:34 AM
Sunset
9:02 PM
Civil Dawn
6:04 AM
Civil Dusk
9:32 PM
Barren River
Sunrise
6:30 AM
Sunset
8:58 PM
Civil Dawn
6:00 AM
Civil Dusk
9:29 PM
Louisville Metro
Sunrise
6:24 AM
Sunset
8:59 PM
Civil Dawn
5:53 AM
Civil Dusk
9:30 PM
Lincoln Trail
Sunrise
6:26 AM
Sunset
8:58 PM
Civil Dawn
5:55 AM
Civil Dusk
9:28 PM
Lake Cumberland
Sunrise
6:22 AM
Sunset
8:51 PM
Civil Dawn
5:52 AM
Civil Dusk
9:21 PM
Northern Kentucky
Sunrise
6:16 AM
Sunset
8:56 PM
Civil Dawn
5:45 AM
Civil Dusk
9:28 PM
Inner Bluegrass
Sunrise
6:19 AM
Sunset
8:53 PM
Civil Dawn
5:49 AM
Civil Dusk
9:24 PM
Bluegrass Foothills
Sunrise
6:19 AM
Sunset
8:52 PM
Civil Dawn
5:49 AM
Civil Dusk
9:22 PM
Northeast Kentucky
Sunrise
6:11 AM
Sunset
8:47 PM
Civil Dawn
5:40 AM
Civil Dusk
9:18 PM
Southeast Kentucky
Sunrise
6:16 AM
Sunset
8:46 PM
Civil Dawn
5:46 AM
Civil Dusk
9:16 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.