Severe Thunderstorm Watch 8:00 PM

Marion County, East Tennessee, Tennessee, United States

Last updated: 7:29 PM CDT  ·  Refresh
29°C
Feels like 32°
Partly Cloudy
▲ 33°  /  ▼ 22°
Wind
3 mph ESE
Humidity
72%
Dew Point
22°
Pressure
28.62 inHg
Visibility
10 mi
UV Index
1.5
Cloud Cover
43%
Sunrise
5:31 AM
Sunset
8:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently partly cloudy at 29°C. Precipitation is likely — peak probability 63% around 3 PM. Atmospheric instability is elevated (CAPE up to 3506 J/kg) — isolated convective development possible. Sunrise: 5:31AM · Sunset: 8:00PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
22%
8 PM
29°
44%
9 PM
27°
35%
10 PM
27°
34%
11 PM
26°
34%
12 AM
26°
14%
1 AM
24°
3%
2 AM
24°
4%
3 AM
24°
8%
4 AM
23°
8%
5 AM
22°
9%
6 AM
22°
21%
7 AM
24°
26%
8 AM
26°
26%
9 AM
29°
23%
10 AM
31°
32%
11 AM
32°
39%
12 PM
33°
40%
1 PM
35°
58%
2 PM
36°
60%
3 PM
36°
63%
4 PM
34°
53%
5 PM
33°
53%
6 PM
31°
39%
7-Day Forecast
Tonight
33° 22°
Partly Cloudy with a 34% chance of rain.
Thu
36° 22°
Partly Cloudy with a 58% chance of rain.
Fri
36° 20°
Mostly Cloudy with a 64% chance of rain.
Sat
33° 20°
Mostly Clear with a 58% chance of rain.
Sun
33° 20°
Rain, 64% chance.
Mon
32° 19°
Thunderstorm, 82% chance.
Tue
31° 21°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 22% 3 mph ESE 72%
8 PM 29° Partly Cloudy 44% 3 mph SE 78%
9 PM 27° Partly Cloudy 35% 3 mph SSE 81%
10 PM 27° Mostly Cloudy 34% 3 mph SW 83%
11 PM 26° Mostly Cloudy 34% 2 mph W 85%
12 AM 26° Mostly Cloudy 14% 2 mph NW 86%
1 AM 24° Mostly Cloudy 3% 2 mph NW 88%
2 AM 24° Mostly Cloudy 4% 2 mph NNW 90%
3 AM 24° Partly Cloudy 8% 2 mph N 91%
4 AM 23° Partly Cloudy 8% 2 mph NNE 91%
5 AM 22° Partly Cloudy 9% 2 mph NNE 89%
6 AM 22° Partly Cloudy 21% 2 mph NNE 88%
7 AM 24° Mostly Clear 26% 2 mph NE 83%
8 AM 26° Mostly Clear 26% 2 mph ENE 76%
9 AM 29° Mostly Clear 23% 2 mph ENE 69%
10 AM 31° Partly Cloudy 32% 3 mph ENE 62%
11 AM 32° Partly Cloudy 39% 3 mph E 57%
12 PM 33° Partly Cloudy 40% 3 mph E 53%
1 PM 35° Partly Cloudy 58% 3 mph E 51%
2 PM 36° Mostly Cloudy 60% 2 mph NE 52%
3 PM 36° Mostly Cloudy 63% 3 mph N 53%
4 PM 34° Mostly Cloudy 53% 3 mph N 58%
5 PM 33° Mostly Cloudy 53% 3 mph NNE 67%
6 PM 31° Mostly Cloudy 39% 4 mph NE 77%
15-Day Forecast
Today
7/1
Partly Cloudy
34%
22°
33°
Thu
7/2
Partly Cloudy
58%
22°
36°
Fri
7/3
Mostly Cloudy
64%
20°
36°
Sat
7/4
Mostly Clear
58%
20°
33°
Sun
7/5
Rain
64%
20°
33°
Mon
7/6
Thunderstorm
82%
19°
32°
Tue
7/7
Rain
90%
21°
31°
Wed
7/8
Rain
90%
21°
29°
Thu
7/9
Rain
90%
20°
29°
Fri
7/10
Rain
90%
21°
31°
Sat
7/11
Drizzle
60%
21°
35°
Sun
7/12
Drizzle
60%
21°
34°
Mon
7/13
Drizzle
60%
21°
32°
Tue
7/14
Drizzle
60%
21°
31°
Wed
7/15
Drizzle
60%
20°
31°
54
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
54 AQI 10.7 µg/m³
O3
Ground-level ozone
45 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 45 54
Fri 49 Good 39 49
Sat 51 Moderate 41 51
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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2930 J/kg
MLCAPE2460 J/kg
MUCAPE2930 J/kg
SBCIN-229 J/kg
MLCIN0 J/kg
Lifted Index-7.3
Kinematics
0–6 km Shear16 kt
0–1 km Shear5 kt
Eff. Shear16 kt
0–1 km SRH-13
0–3 km SRH-40
Eff. SRH-40
Storm Motion25° @ 14 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.3
Thermo & Levels
PWAT1.68 in
0–3 km LR6.0 °C/km
700–500 LR7.1 °C/km
Total Totals54.8
LCL884 hPa
LFC739 hPa
EL158 hPa
Freezing Lvl14,606 ft