Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM

Polk County, East Tennessee, Tennessee, United States

Last updated: 5:14 PM CDT  ·  Refresh
32°C
Feels like 38°
Partly Cloudy
▲ 36°  /  ▼ 21°
Wind
3 mph E
Humidity
66%
Dew Point
22°
Pressure
28.64 inHg
Visibility
10 mi
UV Index
5.5
Cloud Cover
50%
Sunrise
6:27 AM
Sunset
8:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently partly cloudy at 32°C. Precipitation is likely — peak probability 63% around 7 PM. Atmospheric instability is elevated (CAPE up to 2911 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 8:56PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
48%
7 PM
30°
63%
8 PM
28°
62%
9 PM
27°
47%
10 PM
25°
49%
11 PM
24°
24%
12 AM
23°
21%
1 AM
23°
25%
2 AM
22°
6%
3 AM
22°
6%
4 AM
22°
15%
5 AM
22°
15%
6 AM
21°
15%
7 AM
21°
3%
8 AM
22°
23%
9 AM
24°
23%
10 AM
28°
34%
11 AM
29°
47%
12 PM
31°
53%
1 PM
33°
53%
2 PM
35°
57%
3 PM
34°
58%
4 PM
33°
58%
5 PM
33°
49%
7-Day Forecast
Tonight
36° 21°
Partly Cloudy with a 48% chance of rain.
Thu
37° 21°
Partly Cloudy with a 54% chance of rain.
Fri
37° 21°
Partly Cloudy with a 83% chance of rain.
Sat
34° 21°
Partly Cloudy with a 57% chance of rain.
Sun
34° 21°
Rain, 82% chance.
Mon
32° 20°
Rain, 82% chance.
Tue
32° 21°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 48% 3 mph E 66%
7 PM 30° Overcast 63% 5 mph SE 75%
8 PM 28° Overcast 62% 5 mph SE 82%
9 PM 27° Overcast 47% 4 mph SE 84%
10 PM 25° Mostly Cloudy 49% 4 mph SE 86%
11 PM 24° Partly Cloudy 24% 4 mph SE 88%
12 AM 23° Mostly Clear 21% 3 mph SE 90%
1 AM 23° Mostly Clear 25% 2 mph ESE 91%
2 AM 22° Mostly Clear 6% 2 mph ESE 92%
3 AM 22° Mostly Clear 6% 2 mph ESE 91%
4 AM 22° Partly Cloudy 15% 3 mph ESE 90%
5 AM 22° Partly Cloudy 15% 3 mph E 89%
6 AM 21° Haze 15% 3 mph E 88%
7 AM 21° Fog 3% 3 mph E 86%
8 AM 22° Haze 23% 2 mph ENE 83%
9 AM 24° Partly Cloudy 23% 2 mph NE 74%
10 AM 28° Partly Cloudy 34% 2 mph NNE 66%
11 AM 29° Partly Cloudy 47% 3 mph N 58%
12 PM 31° Partly Cloudy 53% 3 mph N 54%
1 PM 33° Partly Cloudy 53% 4 mph N 50%
2 PM 35° Partly Cloudy 57% 4 mph N 49%
3 PM 34° Partly Cloudy 58% 4 mph NNE 53%
4 PM 33° Mostly Cloudy 58% 4 mph NNE 56%
5 PM 33° Mostly Cloudy 49% 5 mph NNE 60%
15-Day Forecast
Today
7/1
Partly Cloudy
48%
21°
36°
Thu
7/2
Partly Cloudy
54%
21°
37°
Fri
7/3
Partly Cloudy
83%
21°
37°
Sat
7/4
Partly Cloudy
57%
21°
34°
Sun
7/5
Rain
82%
21°
34°
Mon
7/6
Rain
82%
20°
32°
Tue
7/7
Rain
82%
21°
32°
Wed
7/8
Rain
79%
21°
31°
Thu
7/9
Rain
90%
20°
29°
Fri
7/10
Rain
68%
20°
31°
Sat
7/11
Drizzle
60%
20°
31°
Sun
7/12
Rain
90%
19°
32°
Mon
7/13
Drizzle
60%
20°
32°
Tue
7/14
Drizzle
60%
20°
31°
Wed
7/15
Rain
90%
19°
31°
46
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
46 AQI 8.3 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 46 Good 31 46
Fri 48 Good 34 48
Sat 45 Good 37 45
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 Wed Jul 1, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3266 J/kg
MLCAPE3462 J/kg
MUCAPE3799 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.9
Kinematics
0–6 km Shear14 kt
0–1 km Shear3 kt
Eff. Shear11 kt
0–1 km SRH-8
0–3 km SRH-56
Eff. SRH-56
Storm Motion26° @ 16 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.0
Thermo & Levels
PWAT1.83 in
0–3 km LR7.1 °C/km
700–500 LR7.7 °C/km
Total Totals56.9
LCL838 hPa
LFC970 hPa
EL159 hPa
Freezing Lvl13,816 ft