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Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Mon, Jul 13
Wed, Jul 15
Forecast For

Tuesday, July 14

Updated Jul 13, 7:11 PM EDT

NWS Alerts Active This Day

Air Quality Alert

Jul 13, 3:00 PM -> Jul 14, 3:00 PM
Unknown Severity

Air Quality Alert issued July 13 at 3:00PM EDT by NWS Wilmington OH

Flood Advisory

Jul 13, 5:39 PM -> Jul 13, 8:45 PM
Minor Severity

Flood Advisory issued July 13 at 5:39PM EDT until July 13 at 8:45PM EDT by NWS Jackson KY

Air Quality Alert

Jul 14, 12:01 AM -> Jul 14, 9:00 PM
Unknown Severity

Air Quality Alert issued July 14 at 12:01AM EDT by NWS Wilmington OH

Air Quality Alert

Jul 14, 1:21 PM -> Jul 14, 9:15 PM
Unknown Severity

Air Quality Alert issued July 14 at 1:21PM EDT by NWS Wilmington OH

Air Quality Alert

Jul 14, 3:43 PM -> Jul 14, 9:15 PM
Unknown Severity

Air Quality Alert issued July 14 at 3:43PM EDT by NWS Wilmington OH

Confidence
70%

A Tale of Two Marylands: Southern Rain vs. Northern Heat

Kentucky will experience a split weather pattern this Tuesday. A weak southern-stream disturbance will bring clouds and light rain to the Purchase and Pennyrile regions, while a building ridge of high pressure keeps the northern and eastern portions of the state hot and mostly sunny.

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

High confidence exists for the heat in the North and East. Confidence is lower regarding the northern extent of the rain shield in the Southwest, as models struggle with the strength of the competing high-pressure ridge.

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
Damp and Cloudy Tuesday
Rain
86°/ 72°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Hot and Mostly Sunny
Sunny
89°/ 71°

Southwest Pennyrile

NUISANCE
Hopkinsville, Madisonville, Princeton
Showers Likely in the Afternoon
Rain
84°/ 72°

Barren River

NUISANCE
Bowling Green, Glasgow, Franklin
Light Rain and Cloudy Skies
Rain
84°/ 70°

Louisville Metro

Louisville, La Grange, Shepherdsville
Hot and Sunny Urban Tuesday
Sunny
91°/ 71°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Bright and Warm
Sunny
87°/ 70°

Lake Cumberland

Somerset, Columbia, Monticello
Morning Clouds, Afternoon Sun
Cloudy
86°/ 69°

Northern Kentucky

Covington, Florence, Independence
Hottest in the North
Sunny
91°/ 70°

Inner Bluegrass

Lexington, Georgetown, Winchester
Perfect Bluegrass Day
Sunny
88°/ 68°

Bluegrass Foothills

Richmond, Danville, Berea
Sunny and Toasty
Sunny
86°/ 67°

Northeast Kentucky

Ashland, Morehead, Grayson
Hot Afternoon After Early Clouds
Sunny
91°/ 65°

Southeast Kentucky

Hazard, Pikeville, Harlan
Bright Skies in the Valleys
Sunny
89°/ 66°

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 southern shortwave tracks further north and the high-pressure ridge weakens, light rain could spread as far north as the I-64 corridor, resulting in cooler temperatures and higher humidity statewide.

💨

The 'Bust' Scenario

If the ridge remains dominant, the southern moisture plume will be forced into Tennessee, leaving the entire Commonwealth dry, mostly sunny, and several degrees hotter than currently forecast.

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 Great Geographic Divide

The NAM focuses on a departing morning ripple in the Northeast, while the GFS and Euro prioritize an incoming wave in the Southwest Purchase area.

NAM
VS
GFS
VS
EURO
Why EURO Wins

The Euro and GFS show better synoptic consistency regarding the southern-stream shortwave. The NAM's focus on the Northeast appears to be a terrain-induced outlier that lacks deep-layer support compared to the incoming Western moisture plume.

Affected Regions
PURCHASESOUTHWEST PENNYRILENORTHEAST 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

The vertical profile is characterized by a standard adiabatic lapse rate with a well-mixed boundary layer up to 750mb. A weak subsidence inversion is present in the North, while the South shows a nearly saturated column below 500mb.

Thermal Boundary

A moisture boundary (70-degree dewpoint line) will be stalled roughly along the Western Kentucky Parkway, separating the humid, rain-prone South from the drier North.

Diurnal Trend

A classic diurnal curve is expected, though it will be dampened in the Southwest due to persistent cloud cover and evaporative cooling from rainfall.

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 significant surface front is present; however, a weak surface trough will exit the far Southeast early in the morning, noted by a light shift to northerly winds.

Jet Stream Support

The right-entrance region of a 250mb jet streak over the Tennessee border will provide synoptic-scale divergence and lift for the southern rain shield.

Energy Status

A compact shortwave trough with weak vorticity (10-12e-4) is the primary driver of the southern precipitation.

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 saturated in the Southwest (Purchase region). Large dewpoint depressions in the Bluegrass and Northern KY indicate a deeply dry airmass with zero precip risk.

Precipitation Character

Precipitation will be stratiform and light. Negligible CAPE across the state precludes the threat of lightning or heavy convective bursts.

Flooding Context

No flood risk exists. Ground conditions are receptive, and total rainfall will remain below 0.25 inches.

Celestial Almanac

Moon Phase

New Moon

0% Illumination
Moonrise
6:45 AM
Moonset
9:13 PM
Purchase Area
Sunrise
6:46 AM
Sunset
9:15 PM
Civil Dawn
6:16 AM
Civil Dusk
9:46 PM
Northwest Pennyrile
Sunrise
6:38 AM
Sunset
9:11 PM
Civil Dawn
6:08 AM
Civil Dusk
9:42 PM
Southwest Pennyrile
Sunrise
6:42 AM
Sunset
9:10 PM
Civil Dawn
6:12 AM
Civil Dusk
9:40 PM
Barren River
Sunrise
6:38 AM
Sunset
9:07 PM
Civil Dawn
6:08 AM
Civil Dusk
9:37 PM
Louisville Metro
Sunrise
6:32 AM
Sunset
9:07 PM
Civil Dawn
6:01 AM
Civil Dusk
9:38 PM
Lincoln Trail
Sunrise
6:34 AM
Sunset
9:06 PM
Civil Dawn
6:03 AM
Civil Dusk
9:37 PM
Lake Cumberland
Sunrise
6:30 AM
Sunset
8:59 PM
Civil Dawn
6:00 AM
Civil Dusk
9:30 PM
Northern Kentucky
Sunrise
6:24 AM
Sunset
9:05 PM
Civil Dawn
5:53 AM
Civil Dusk
9:36 PM
Inner Bluegrass
Sunrise
6:27 AM
Sunset
9:02 PM
Civil Dawn
5:57 AM
Civil Dusk
9:32 PM
Bluegrass Foothills
Sunrise
6:27 AM
Sunset
9:00 PM
Civil Dawn
5:57 AM
Civil Dusk
9:31 PM
Northeast Kentucky
Sunrise
6:19 AM
Sunset
8:55 PM
Civil Dawn
5:48 AM
Civil Dusk
9:26 PM
Southeast Kentucky
Sunrise
6:24 AM
Sunset
8:54 PM
Civil Dawn
5:54 AM
Civil Dusk
9:25 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.