Severe Thunderstorm Watch 9:00 PM

Katia Lane, Evangeline, Knox County, East Tennessee, Tennessee, 37938, United States

Last updated: 7:12 PM CDT  ·  Refresh
24°C
Feels like 28°
Partly Cloudy
▲ 29°  /  ▼ 18°
Wind
4 mph NNW
Humidity
86%
Dew Point
22°
Pressure
28.72 inHg
Visibility
2 mi
UV Index
0.0
Cloud Cover
31%
Sunrise
6:58 AM
Sunset
8:18 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Katia Lane is currently partly cloudy at 24°C. Precipitation is likely — peak probability 61% around 8 PM. Atmospheric instability is elevated (CAPE up to 1765 J/kg) — isolated convective development possible. Sunrise: 6:58AM · Sunset: 8:18PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
21%
9 PM
26°
33%
10 PM
23°
33%
11 PM
22°
18%
12 AM
22°
18%
1 AM
21°
15%
2 AM
21°
3%
3 AM
21°
5%
4 AM
20°
6%
5 AM
20°
7%
6 AM
18°
7%
7 AM
18°
16%
8 AM
19°
16%
9 AM
21°
16%
10 AM
23°
11%
11 AM
24°
12%
12 PM
26°
12%
1 PM
27°
12%
2 PM
29°
25%
3 PM
31°
33%
4 PM
31°
33%
5 PM
31°
45%
6 PM
29°
50%
7 PM
28°
61%
7-Day Forecast
Tonight
29° 18°
Partly Cloudy with a 21% chance of rain.
Sat
32° 18°
Mostly Clear with a 61% chance of rain.
Sun
29° 17°
Mostly Clear.
Mon
29° 16°
Partly Cloudy with a 37% chance of rain.
Tue
30° 17°
Partly Cloudy with a 27% chance of rain.
Wed
31° 18°
Rain, 86% chance.
Thu
29° 19°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 21% 4 mph NNW 86%
9 PM 26° Mostly Clear 33% 3 mph N 89%
10 PM 23° Mostly Clear 33% 2 mph NNE 91%
11 PM 22° Mostly Clear 18% 2 mph NE 93%
12 AM 22° Partly Cloudy 18% 2 mph NNE 94%
1 AM 21° Partly Cloudy 15% 2 mph N 95%
2 AM 21° Partly Cloudy 3% 2 mph N 95%
3 AM 21° Partly Cloudy 5% 2 mph NNW 96%
4 AM 20° Partly Cloudy 6% 2 mph NNW 96%
5 AM 20° Partly Cloudy 7% 2 mph NW 96%
6 AM 18° Partly Cloudy 7% 2 mph NW 96%
7 AM 18° Partly Cloudy 16% 2 mph NW 96%
8 AM 19° Haze 16% 1 mph WSW 95%
9 AM 21° Partly Cloudy 16% 1 mph SSW 90%
10 AM 23° Partly Cloudy 11% 2 mph SSW 82%
11 AM 24° Partly Cloudy 12% 2 mph SW 76%
12 PM 26° Partly Cloudy 12% 3 mph WSW 69%
1 PM 27° Partly Cloudy 12% 3 mph WSW 62%
2 PM 29° Partly Cloudy 25% 4 mph W 57%
3 PM 31° Mostly Clear 33% 5 mph W 56%
4 PM 31° Mostly Clear 33% 5 mph W 55%
5 PM 31° Mostly Clear 45% 6 mph W 55%
6 PM 29° Mostly Clear 50% 6 mph W 58%
7 PM 28° Clear 61% 6 mph W 61%
15-Day Forecast
Today
8/21
Partly Cloudy
21%
18°
29°
Sat
8/22
Mostly Clear
61%
18°
32°
Sun
8/23
Mostly Clear
6%
17°
29°
Mon
8/24
Partly Cloudy
37%
16°
29°
Tue
8/25
Partly Cloudy
27%
17°
30°
Wed
8/26
Rain
86%
18°
31°
Thu
8/27
Rain
90%
19°
29°
Fri
8/28
Drizzle
48%
19°
32°
Sat
8/29
Drizzle
54%
18°
32°
Sun
8/30
Drizzle
52%
19°
33°
Mon
8/31
Drizzle
60%
20°
34°
Tue
9/1
Drizzle
60%
19°
33°
Wed
9/2
Drizzle
60%
19°
32°
Thu
9/3
Drizzle
60%
19°
32°
Fri
9/4
Clear
60%
19°
32°
41
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
39 AQI 7.1 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 41 39
Sun 52 Moderate 40 52
Mon 39 Good 33 39
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Aug 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1366 J/kg
MLCAPE1031 J/kg
MUCAPE1863 J/kg
SBCIN-60 J/kg
MLCIN-24 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear27 kt
0–1 km Shear7 kt
Eff. Shear29 kt
0–1 km SRH-27
0–3 km SRH5
Eff. SRH5
Storm Motion327° @ 24 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.1
K-Index24.7
Thermo & Levels
PWAT1.41 in
0–3 km LR6.1 °C/km
700–500 LR5.2 °C/km
Total Totals42.9
LCL935 hPa
LFC851 hPa
EL187 hPa
Freezing Lvl14,439 ft