kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Thu, Feb 5
Sat, Feb 7
Forecast For

Friday, February 6

Updated Feb 5, 5:55 PM EST

NWS Alerts Active This Day

Winter Weather Advisory

Feb 5, 12:28 PM -> Feb 5, 8:30 PM
Moderate Severity

Winter Weather Advisory issued February 5 at 12:28PM EST until February 6 at 6:00PM EST by NWS Wilmington OH

Winter Weather Advisory

Feb 5, 12:39 PM -> Feb 5, 8:45 PM
Moderate Severity

Winter Weather Advisory issued February 5 at 12:39PM EST until February 7 at 1:00AM EST by NWS Charleston WV

Winter Weather Advisory

Feb 5, 12:53 PM -> Feb 5, 9:00 PM
Moderate Severity

Winter Weather Advisory issued February 5 at 12:53PM EST until February 6 at 6:00PM EST by NWS Jackson KY

Winter Weather Advisory

Feb 5, 12:53 PM -> Feb 5, 9:00 PM
Moderate Severity

Winter Weather Advisory issued February 5 at 12:53PM EST until February 7 at 7:00AM EST by NWS Jackson KY

Winter Weather Advisory

Feb 5, 1:09 PM -> Feb 6, 12:00 AM
Moderate Severity

Winter Weather Advisory issued February 5 at 1:09PM EST until February 6 at 5:00PM EST by NWS Louisville KY

Special Weather Statement

Feb 5, 1:15 PM -> Feb 5, 7:15 PM
Moderate Severity

Special Weather Statement issued February 5 at 1:15PM EST by NWS Jackson KY

Special Weather Statement

Feb 5, 1:20 PM -> Feb 6, 12:00 AM
Moderate Severity

Special Weather Statement issued February 5 at 1:20PM EST by NWS Louisville KY

Winter Weather Advisory

Feb 5, 4:04 PM -> Feb 6, 3:00 AM
Moderate Severity

Winter Weather Advisory issued February 5 at 4:04PM EST until February 6 at 6:00PM EST by NWS Wilmington OH

Special Weather Statement

Feb 5, 6:55 PM -> Feb 6, 5:45 AM
Moderate Severity

Special Weather Statement issued February 5 at 6:55PM EST by NWS Jackson KY

Winter Weather Advisory

Feb 5, 8:23 PM -> Feb 6, 4:30 AM
Moderate Severity

Winter Weather Advisory issued February 5 at 8:23PM EST until February 7 at 1:00AM EST by NWS Charleston WV

Winter Weather Advisory

Feb 5, 8:40 PM -> Feb 6, 6:00 AM
Moderate Severity

Winter Weather Advisory issued February 5 at 8:40PM EST until February 6 at 6:00PM EST by NWS Jackson KY

Winter Weather Advisory

Feb 5, 8:40 PM -> Feb 6, 6:00 AM
Moderate Severity

Winter Weather Advisory issued February 5 at 8:40PM EST until February 7 at 7:00AM EST by NWS Jackson KY

Confidence
60%

Light Snow and Mix East; Windy and Dry West

A compact weather system will sweep across Kentucky today, bringing a period of light snow and rain to the eastern half of the state while western regions stay dry but very windy. Expect a slushy dusting of snow in the north and east, primarily on grassy surfaces, with little to no accumulation in the west or south.

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

High confidence in precipitation timing and locations; however, confidence is lower regarding snow accumulation totals due to surface temperatures hovering between 32F and 35F.

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

Paducah, Murray, Mayfield
Very Windy and Cold
Cloudy
45°/ 29°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Breezy with Afternoon Sprinkles
Rain
42°/ 27°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Dry and Overcast
Cloudy
48°/ 28°

Barren River

Bowling Green, Glasgow, Franklin
Cold Evening Rain Showers
Rain
44°/ 28°

Louisville Metro

Louisville, La Grange, Shepherdsville
Light Afternoon Rain
Rain
37°/ 25°

Lincoln Trail

NUISANCE
Elizabethtown, Bardstown, Leitchfield
Brief Morning Mix to Rain
Wintry_Mix
38°/ 26°

Lake Cumberland

NUISANCE
Somerset, Columbia, Monticello
Cold and Damp with Light Rain
Rain
40°/ 24°

Northern Kentucky

IMPACTFUL
Covington, Florence, Independence
One Inch of Snow Expected
Snow
34°/ 20°

Inner Bluegrass

NUISANCE
Lexington, Georgetown, Winchester
Half-Inch of Snow then Rain
Wintry_Mix
34°/ 22°

Bluegrass Foothills

NUISANCE
Richmond, Danville, Berea
Slushy Mix Likely
Wintry_Mix
35°/ 23°

Northeast Kentucky

IMPACTFUL
Ashland, Morehead, Grayson
Over One Inch of Snow Possible
Snow
33°/ 22°

Southeast Kentucky

IMPACTFUL
Hazard, Pikeville, Harlan
Mountain Snow Accumulations
Snow
35°/ 21°

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 dynamic cooling is more robust and the 850mb warm nose stays further south, snow-to-liquid ratios (SLRs) could reach 10:1 statewide. This would result in widespread 1-2 inch accumulations for the Bluegrass and 3 inches for the Northeast.

💨

The 'Bust' Scenario

If boundary layer warming exceeds projections or a 'dry slot' moves in faster, most of the state will see only a few morning flurries or a cold drizzle, with no measurable accumulation outside of the highest mountain peaks.

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.

Northeastern Snow Totals

The Euro is forecasting nearly 2 inches of snow for Ashland/Morehead, which is double the GFS and NAM forecasts.

EURO
VS
GFS
VS
NAM
Why BLEND Wins

Per protocol, when the Euro is a high outlier (>2x GFS), a blend centered on the GFS/NAM mean is more reliable to avoid over-forecasting marginal clipper events.

Affected Regions
NORTHEAST KYNORTHERN KY

The 850mb Warm Nose Conflict

Models disagree on how far north a +2C layer at 850mb penetrates. The NAM and GEM are more aggressive with this warm air, suggesting a quick transition to rain for the Bluegrass, while the Euro and GFS keep it cold enough for snow through the afternoon.

NAM
VS
GEM
VS
GFS
Why NAM Wins

The NAM typically handles shallow cold air and the erosion of a warm nose more accurately within the 0-36 hour window by better resolving low-level moisture and thermal boundaries.

Affected Regions
BLUEGRASS CORELOUISVILLE METROLINCOLN TRAILBLUEGRASS FOOTHILLS

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 nearly isothermal layer exists near the freezing mark from the surface to 850mb in the East. A marginal warm nose (+1C to +2C) is expected to develop between 850-900mb across Central KY by afternoon.

Thermal Boundary

The 0C surface isotherm will be draped along the I-64 corridor for much of the morning, shifting slowly north of the Ohio River by sunset.

Diurnal Trend

Non-diurnal steadying of temperatures is expected in the east due to heavy cloud cover and precipitation; standard diurnal warming will occur in the west.

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 weak secondary cold front will sweep through between 12Z and 18Z, evidenced by a sharp increase in wind gusts from the west/northwest exceeding 30 mph.

Jet Stream Support

The right-entrance region of a 110kt jet streak provides synoptic-scale lift over the northeastern quadrant of the state.

Energy Status

A compact positive vorticity maximum (3.3e-4) pivots through the Bluegrass between 15Z and 21Z, providing the primary lift for 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 below 700mb in the east, but a significant 'dry slot' in the west will result in virga failing to reach the surface.

Precipitation Character

Mostly stratiform precipitation, though some orographic enhancement (convective bursts) is likely in the Southeast Coalfields and Bluegrass Foothills.

Flooding Context

Hydrologic risk is zero as total liquid equivalent remains below 0.25 inches across the entire state.

Winter Physics

Accumulation & Layers

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

Layer Analysis

850mb temperatures between -2C and -4C support snow aloft, but a surface warm layer of 1,500 feet will force melting to rain in the west and central regions.

Crystal Habit

Wet, rimed flakes are expected due to a very shallow Dendritic Growth Zone (DGZ) and marginal thermal profiles.

Road Impact

Accumulations will be primarily on grassy and elevated surfaces. Pavement temperatures remain high enough to mitigate widespread travel impacts, though slush is possible on bridges.

Celestial Almanac

Moon Phase

Waning Gibbous

77% Illumination
Moonrise
10:40 PM
Moonset
10:18 AM
Purchase Area
Sunrise
7:54 AM
Sunset
6:25 PM
Civil Dawn
7:26 AM
Civil Dusk
6:52 PM
Northwest Pennyrile
Sunrise
7:49 AM
Sunset
6:18 PM
Civil Dawn
7:21 AM
Civil Dusk
6:45 PM
Southwest Pennyrile
Sunrise
7:49 AM
Sunset
6:21 PM
Civil Dawn
7:22 AM
Civil Dusk
6:48 PM
Barren River
Sunrise
7:45 AM
Sunset
6:17 PM
Civil Dawn
7:18 AM
Civil Dusk
6:44 PM
Louisville Metro
Sunrise
7:44 AM
Sunset
6:12 PM
Civil Dawn
7:17 AM
Civil Dusk
6:39 PM
Lincoln Trail
Sunrise
7:44 AM
Sunset
6:13 PM
Civil Dawn
7:16 AM
Civil Dusk
6:40 PM
Lake Cumberland
Sunrise
7:38 AM
Sunset
6:09 PM
Civil Dawn
7:10 AM
Civil Dusk
6:36 PM
Northern Kentucky
Sunrise
7:41 AM
Sunset
6:05 PM
Civil Dawn
7:13 AM
Civil Dusk
6:33 PM
Inner Bluegrass
Sunrise
7:39 AM
Sunset
6:07 PM
Civil Dawn
7:11 AM
Civil Dusk
6:34 PM
Bluegrass Foothills
Sunrise
7:38 AM
Sunset
6:07 PM
Civil Dawn
7:10 AM
Civil Dusk
6:34 PM
Northeast Kentucky
Sunrise
7:32 AM
Sunset
5:59 PM
Civil Dawn
7:05 AM
Civil Dusk
6:26 PM
Southeast Kentucky
Sunrise
7:32 AM
Sunset
6:03 PM
Civil Dawn
7:05 AM
Civil Dusk
6:30 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.