kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Wed, Feb 11
Fri, Feb 13
Forecast For

Thursday, February 12

Updated Feb 11, 6:00 PM EST
Confidence
45%

Morning Flurries North; Dry and Seasonable Elsewhere

A weak, moisture-starved clipper system will move across the Ohio Valley during the morning hours, bringing a few light snow flurries to North-Central Kentucky. Most of the Commonwealth will remain dry with a mix of sun and clouds and temperatures near seasonal averages.

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

High confidence in a dry day for Southern KY, but significant disagreement between the high-resolution NAM and global models regarding the presence of morning snow flurries in the northern counties.

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
Mild and Sunny Afternoon
Sunny
50°/ 31°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Partly Cloudy and Dry
Cloudy
47°/ 27°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Sunny and Seasonal
Sunny
49°/ 30°

Barren River

Bowling Green, Glasgow, Franklin
Quiet and Bright
Sunny
48°/ 28°

Louisville Metro

NUISANCE
Louisville, La Grange, Shepherdsville
Morning Flurries Possible
Snow
43°/ 27°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Cold Start, Cloudy Afternoon
Cloudy
45°/ 26°

Lake Cumberland

Somerset, Columbia, Monticello
Dry and Chilly
Cloudy
45°/ 26°

Northern Kentucky

Covington, Florence, Independence
Stray Flurries; Cold Day
Cloudy
38°/ 23°

Inner Bluegrass

NUISANCE
Lexington, Georgetown, Winchester
Morning Snow Flurries
Snow
41°/ 25°

Bluegrass Foothills

Richmond, Danville, Berea
Cold and Overcast
Cloudy
42°/ 25°

Northeast Kentucky

Ashland, Morehead, Grayson
Chilly and Gloomy
Cloudy
39°/ 26°

Southeast Kentucky

Hazard, Pikeville, Harlan
Quiet Mountain Day
Cloudy
42°/ 27°

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

The NAM verifies with slightly deeper moisture, resulting in a widespread dusting (0.1-0.3") of snow across the I-64 corridor that coats grassy surfaces and rooftops through noon.

💨

The 'Bust' Scenario

Dry air in the lowest 2km (as suggested by the GFS/Euro) completely evaporates any falling snow, resulting in nothing more than a few 'cloud flakes' or high-base clouds with no surface accumulation.

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 Morning Thermal Floor

GEM and GFS forecast widespread teens for morning lows due to clear-sky radiational cooling, while NAM and Euro keep lows in the mid-20s due to expected cloud cover.

GEM
VS
GFS
VS
NAM
Why EURO Wins

Cloud cover associated with the incoming shortwave will likely disrupt ideal radiational cooling across the northern two-thirds of the state, favoring the slightly warmer Euro/NAM solution.

Affected Regions
PURCHASEBLUEGRASS FOOTHILLSNORTHEAST KY

The Clipper Conundrum

The NAM is aggressive with a saturated layer in the Dendritic Growth Zone (DGZ), producing light snow flurries for Louisville and Lexington, while the Global models (GFS/ECMWF/GEM) maintain a dry profile below 700mb.

NAM
VS
GFS
VS
EURO
Why NAM Wins

The NAM typically handles shallow, mesoscale features like clipper-driven flurries better than global models within a 24-hour window. Its vertical resolution is superior for detecting the thin saturated layer necessary for snow production.

Affected Regions
LOUISVILLE METROBLUEGRASS CORENORTHERN 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 shallow sub-freezing layer is present below 800mb across the north, while a well-mixed profile develops in the south. A strong nocturnal inversion will be scoured out by noon.

Thermal Boundary

The 0C surface isotherm will be located near the Bluegrass Parkway during the morning, retreating north of the Ohio River by 18Z.

Diurnal Trend

A standard diurnal curve is expected, though evaporative cooling (wet-bulbing) from flurries could temporarily stall morning warming in the Bluegrass Core.

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 surface trough passes between 12Z and 16Z, marked by a wind shift from southwest to west-northwest at 5-10 mph.

Jet Stream Support

The region is located in the left exit region of a 90kt 250mb jet, providing modest synoptic-scale ascent.

Energy Status

A compact 500mb shortwave trough with a vorticity core of 1.5e-4 s-1 is the primary driver for morning flurries.

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 only in a narrow 850-700mb layer. Significant dewpoint depressions below 900mb create a high virga risk.

Precipitation Character

Light, stratiform snow flurries (northern tier) or dry conditions (southern tier).

Flooding Context

No flooding risk; QPF is trace amounts only.

Winter Physics

Accumulation & Layers

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

Layer Analysis

Entirely sub-freezing vertical profile in the northern third of the state during the 09-15Z window, precluding any sleet or freezing rain threat.

Crystal Habit

Dendritic Growth Zone (DGZ) is saturated, supporting a 15:1 snow-to-liquid ratio for any flakes that survive the fall.

Road Impact

Accumulation limited to grassy surfaces due to light intensity and residual ground warmth.

Celestial Almanac

Moon Phase

Waning Crescent

23% Illumination
Moonrise
4:35 AM
Moonset
1:46 PM
Purchase Area
Sunrise
7:47 AM
Sunset
6:32 PM
Civil Dawn
7:21 AM
Civil Dusk
6:58 PM
Northwest Pennyrile
Sunrise
7:43 AM
Sunset
6:25 PM
Civil Dawn
7:16 AM
Civil Dusk
6:52 PM
Southwest Pennyrile
Sunrise
7:43 AM
Sunset
6:27 PM
Civil Dawn
7:16 AM
Civil Dusk
6:54 PM
Barren River
Sunrise
7:39 AM
Sunset
6:23 PM
Civil Dawn
7:12 AM
Civil Dusk
6:50 PM
Louisville Metro
Sunrise
7:38 AM
Sunset
6:18 PM
Civil Dawn
7:11 AM
Civil Dusk
6:46 PM
Lincoln Trail
Sunrise
7:37 AM
Sunset
6:20 PM
Civil Dawn
7:10 AM
Civil Dusk
6:47 PM
Lake Cumberland
Sunrise
7:32 AM
Sunset
6:16 PM
Civil Dawn
7:05 AM
Civil Dusk
6:42 PM
Northern Kentucky
Sunrise
7:34 AM
Sunset
6:12 PM
Civil Dawn
7:07 AM
Civil Dusk
6:40 PM
Inner Bluegrass
Sunrise
7:33 AM
Sunset
6:14 PM
Civil Dawn
7:05 AM
Civil Dusk
6:41 PM
Bluegrass Foothills
Sunrise
7:31 AM
Sunset
6:13 PM
Civil Dawn
7:04 AM
Civil Dusk
6:40 PM
Northeast Kentucky
Sunrise
7:26 AM
Sunset
6:06 PM
Civil Dawn
6:58 AM
Civil Dusk
6:33 PM
Southeast Kentucky
Sunrise
7:26 AM
Sunset
6:10 PM
Civil Dawn
6:59 AM
Civil Dusk
6:37 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.