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Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Sat, Mar 21
Mon, Mar 23
Forecast For

Sunday, March 22

Updated Mar 22, 7:00 AM EDT

NWS Alerts Active This Day

Severe Thunderstorm Watch

Mar 22, 6:17 PM -> Mar 23, 1:00 AM
Severe Severity

Severe Thunderstorm Watch issued March 22 at 6:17PM EDT until March 23 at 1:00AM EDT by NWS Louisville KY

Confidence
85%

How Did We Do?

Comparing our AI forecast to actual observations from Sunday, March 22, 2026.

Temperature
±4.2°F
Average Error
Precipitation
±0.05"
Average Error
Wind Speed
±7.4mph
Average error

Regional Assessments

Purchase Area

Paducah, Murray, Mayfield
Temperature
Forecast
84° / 62°
Actual
88° / 59°
Error: -4°F high, 3°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
18 / 35 mph
Actual
9 / 28 mph
Mesonet Stations HCKM, BAND

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Temperature
Forecast
85° / 60°
Actual
88° / 56°
Error: -3°F high, 4°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
16 / 40 mph
Actual
8 / 31 mph
Mesonet Stations FRNY, RPTN, GRHM, DIXO

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Temperature
Forecast
84° / 63°
Actual
88° / 61°
Error: -4°F high, 2°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
16 / 35 mph
Actual
9 / 31 mph
Mesonet Stations PRNC, PGHL, ERLN, CADZ, CCTY

Barren River

Bowling Green, Glasgow, Franklin
Temperature
Forecast
85° / 62°
Actual
88° / 49°
Error: -3°F high, 13°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
17 / 35 mph
Actual
6 / 27 mph
Mesonet Stations FARM, WDBY, EWPK

Louisville Metro

Louisville, La Grange, Shepherdsville
Temperature
Forecast
84° / 57°
Actual
86° / 62°
Error: -2°F high, -5°F low
Precipitation
Forecast
0.15"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
14 / 30 mph
Actual
10 / 29 mph
Mesonet Stations LGRN

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Temperature
Forecast
83° / 60°
Actual
89° / 51°
Error: -6°F high, 9°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
15 / 35 mph
Actual
7 / 28 mph
Mesonet Stations CRMT, BLRK, CCLA, BRND, HARD

Lake Cumberland

Somerset, Columbia, Monticello
Temperature
Forecast
82° / 60°
Actual
88° / 47°
Error: -6°F high, 13°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
13 / 30 mph
Actual
6 / 31 mph
Mesonet Stations PCWN, CMBA, GRDR, WOOD, GRBG

Northern Kentucky

Covington, Florence, Independence
Temperature
Forecast
84° / 50°
Actual
87° / 61°
Error: -3°F high, -11°F low
Precipitation
Forecast
0.3"
Actual
0"
±0.3" off
Wind Speed
Forecast
13 / 28 mph
Actual
6 / 26 mph
Mesonet Stations HHTS, HUEY

Inner Bluegrass

Lexington, Georgetown, Winchester
Temperature
Forecast
82° / 56°
Actual
84° / 57°
Error: -2°F high, -1°F low
Precipitation
Forecast
0.05"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
17 / 38 mph
Actual
9 / 32 mph
Mesonet Stations LXGN, SPIN

Bluegrass Foothills

Richmond, Danville, Berea
Temperature
Forecast
81° / 59°
Actual
86° / 55°
Error: -5°F high, 4°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
14 / 32 mph
Actual
7 / 23 mph
Mesonet Stations LGNT

Northeast Kentucky

Ashland, Morehead, Grayson
Temperature
Forecast
84° / 53°
Actual
87° / 40°
Error: -3°F high, 13°F low
Precipitation
Forecast
0.08"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
12 / 30 mph
Actual
5 / 33 mph
Mesonet Stations MRHD, CHTR

Southeast Kentucky

Hazard, Pikeville, Harlan
Temperature
Forecast
81° / 58°
Actual
90° / 45°
Error: -9°F high, 13°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
10 / 25 mph
Actual
4 / 25 mph
Mesonet Stations BMBL, QKSD, BNVL, VEST, RFVC, RFSM, PBDY

Summer Heat Followed by a Sharp Evening Cold Front

A record-challenging spring day is on tap for Kentucky with temperatures soaring into the low to mid-80s under sunny skies. However, a potent cold front will cross the Ohio River late this evening, bringing a round of light rain showers and a sharp 20-30 degree temperature drop to northern and central regions by tonight.

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

High confidence in the record-breaking warmth and wind gusts; moderate confidence in the exact start time of evening rain due to timing differences between the Euro and the rest of the model suite.

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
Hot and Breezy Western Gateway
Sunny
84°/ 62°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Summer Heat and Gusty Winds
Sunny
85°/ 60°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Very Warm and Bright
Sunny
84°/ 63°

Barren River

Bowling Green, Glasgow, Franklin
Record-Challenging Heat
Sunny
85°/ 62°

Louisville Metro

NUISANCE
Louisville, La Grange, Shepherdsville
Hot Afternoon, Rain Late Evening
Rain
84°/ 57°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Breezy and Summer-Like
Sunny
83°/ 60°

Lake Cumberland

Somerset, Columbia, Monticello
Sunny and Warm Lake Day
Sunny
82°/ 60°

Northern Kentucky

NUISANCE
Covington, Florence, Independence
Record Heat then Evening Rain
Rain
84°/ 50°

Inner Bluegrass

Lexington, Georgetown, Winchester
Windy and Warm; Late Shower
Sunny
82°/ 56°

Bluegrass Foothills

Richmond, Danville, Berea
Pleasant and Very Warm
Sunny
81°/ 59°

Northeast Kentucky

NUISANCE
Ashland, Morehead, Grayson
Hot Afternoon, Damp Evening
Rain
84°/ 53°

Southeast Kentucky

Hazard, Pikeville, Harlan
Warm and Sunny Peaks
Sunny
81°/ 58°

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 front slows slightly and the low-level jet maximizes, temperatures could reach the upper 80s in the south, while Northern KY sees over a half-inch of rain if moisture pooling is more efficient.

💨

The 'Bust' Scenario

A 'Bust' occurs if the deep dry layer in the sub-cloud region wins out, resulting in nothing more than sprinkles (virga) and a dry frontal passage for most of the state.

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 QPF Moisture Squeeze

Models disagree on how much moisture will survive the trip over the dry sub-cloud layer. The NAM and Euro show 0.3-0.5" of rain, while the GFS and GEM suggest the atmosphere will largely 'eat' the rain via evaporation.

NAM
VS
EURO
VS
GFS
Why BLEND Wins

A middle-ground approach is warranted given the high dewpoint depressions (25F+), which will likely cap totals below the higher NAM/Euro estimates.

Affected Regions
NORTHEAST KYNORTHERN KYLOUISVILLE METRO

The Frontal Timing Tug-of-War

The ECMWF is significantly more aggressive with the cold front's progression, bringing rain and cooling to the Ohio River by early afternoon, while the NAM and GFS hold the front back until the mid-to-late evening.

EURO
VS
NAM
VS
GFS
Why NAM Wins

High-resolution mesoscale models like the NAM typically handle the shallow cold air and timing of surface boundaries more accurately within 24-36 hours than global models.

Affected Regions
NORTHERN KYLOUISVILLE METROBLUEGRASS CORE

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 deep, dry-adiabatic mixed layer extends to 800mb, promoting efficient warming. Post-frontal profiles show a sharp low-level cooling trend with an anafront structure.

Thermal Boundary

Stalled just north of the Ohio River during peak heating, pushing south into Central KY after 00z.

Diurnal Trend

Standard diurnal curve for most; highly non-diurnal for Northern KY with temps crashing from the 80s into the 50s this evening.

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

Cold front passage expected between 21z and 03z from north to south. Sharp wind shift from SW to NW.

Jet Stream Support

Right Entrance Region divergence provides synoptic-scale lift for the frontal rain band.

Energy Status

A compact shortwave trough with a 500mb vorticity maximum of 1.1e-4 is pivoting through the Ohio 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

Initially dry (PWATs ~0.6"); saturation occurs late in the 0-3km layer near the frontal boundary.

Precipitation Character

Stratiform rain with a high risk of initial virga due to the dry sub-cloud layer.

Flooding Context

Ground is unsaturated; no hydrologic concerns given the light QPF totals.

Celestial Almanac

Moon Phase

Waxing Crescent

15% Illumination
Moonrise
9:38 AM
Moonset
11:30 PM
Purchase Area
Sunrise
7:56 AM
Sunset
8:08 PM
Civil Dawn
7:30 AM
Civil Dusk
8:34 PM
Northwest Pennyrile
Sunrise
7:50 AM
Sunset
8:02 PM
Civil Dawn
7:24 AM
Civil Dusk
8:29 PM
Southwest Pennyrile
Sunrise
7:51 AM
Sunset
8:04 PM
Civil Dawn
7:26 AM
Civil Dusk
8:30 PM
Barren River
Sunrise
7:47 AM
Sunset
8:00 PM
Civil Dawn
7:21 AM
Civil Dusk
8:26 PM
Louisville Metro
Sunrise
7:44 AM
Sunset
7:57 PM
Civil Dawn
7:18 AM
Civil Dusk
8:23 PM
Lincoln Trail
Sunrise
7:45 AM
Sunset
7:57 PM
Civil Dawn
7:19 AM
Civil Dusk
8:24 PM
Lake Cumberland
Sunrise
7:40 AM
Sunset
7:52 PM
Civil Dawn
7:14 AM
Civil Dusk
8:18 PM
Northern Kentucky
Sunrise
7:39 AM
Sunset
7:52 PM
Civil Dawn
7:13 AM
Civil Dusk
8:19 PM
Inner Bluegrass
Sunrise
7:39 AM
Sunset
7:52 PM
Civil Dawn
7:13 AM
Civil Dusk
8:18 PM
Bluegrass Foothills
Sunrise
7:39 AM
Sunset
7:51 PM
Civil Dawn
7:12 AM
Civil Dusk
8:17 PM
Northeast Kentucky
Sunrise
7:32 AM
Sunset
7:45 PM
Civil Dawn
7:05 AM
Civil Dusk
8:11 PM
Southeast Kentucky
Sunrise
7:34 AM
Sunset
7:47 PM
Civil Dawn
7:08 AM
Civil Dusk
8:13 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.