Heat Advisory — Clay, AR, Greene, AR, Craighead, AR, Poinsett, AR, Mississippi, AR, Cross, AR, Crittenden, AR, St. Francis, AR, Lee, AR, Phillips, AR, Dunklin, MO, Pemiscot, MO, DeSoto, MS, Marshall, MS, Tunica, MS, Tate, MS, Coahoma, MS, Quitman, MS, Panola, MS, Lafayette, MS, Tallahatchie, MS, Yalobusha, MS, Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Shelby, TN, Fayette, TN, Hardeman, TN 8:00 PM

Marianna, Arkansas

Last updated: 8:38 AM CDT  ·  Refresh
27°C
Feels like 29°
Clear
▲ 38°  /  ▼ 23°
Wind
8 mph SSW
Humidity
70%
Dew Point
22°
Pressure
29.93 inHg
Visibility
10 mi
UV Index
5.1
Cloud Cover
2%
Sunrise
6:41 AM
Sunset
7:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marianna is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1427 J/kg) — isolated convective development possible. Sunrise: 6:41AM · Sunset: 7:18PM.

Alerts

Heat Advisory
Clay, AR, Greene, AR, Craighead, AR, Poinsett, AR, Mississippi, AR, Cross, AR, Crittenden, AR, St. Francis, AR, Lee, AR, Phillips, AR, Dunklin, MO, Pemiscot, MO, DeSoto, MS, Marshall, MS, Tunica, MS, Tate, MS, Coahoma, MS, Quitman, MS, Panola, MS, Lafayette, MS, Tallahatchie, MS, Yalobusha, MS, Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Shelby, TN, Fayette, TN, Hardeman, TN
Expires 8:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
13%
9 AM
29°
16%
10 AM
31°
16%
11 AM
33°
9%
12 PM
34°
7%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
28°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
25°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
7-Day Forecast
Today
38° 23°
Mostly Clear.
Thu
39° 23°
Partly Cloudy with a 25% chance of rain.
Fri
37° 21°
Rain, 69% chance.
Sat
38° 20°
Partly Cloudy with a 35% chance of rain.
Sun
39° 21°
Rain, 30% chance.
Mon
39° 22°
Clear.
Tue
39° 23°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 13% 8 mph SSW 70%
9 AM 29° Clear 16% 9 mph SSW 61%
10 AM 31° Clear 16% 10 mph SSW 54%
11 AM 33° Mostly Clear 9% 9 mph SW 49%
12 PM 34° Mostly Clear 7% 9 mph SW 44%
1 PM 36° Mostly Clear 3% 8 mph SSW 42%
2 PM 36° Mostly Clear 3% 8 mph S 42%
3 PM 36° Partly Cloudy 3% 9 mph S 42%
4 PM 36° Partly Cloudy 3% 9 mph SSE 43%
5 PM 36° Partly Cloudy 3% 9 mph S 44%
6 PM 34° Mostly Clear 3% 8 mph S 47%
7 PM 33° Mostly Clear 3% 8 mph S 50%
8 PM 32° Clear 3% 8 mph S 54%
9 PM 29° Clear 3% 8 mph S 57%
10 PM 29° Clear 3% 8 mph S 59%
11 PM 28° Clear 3% 8 mph S 61%
12 AM 28° Mostly Clear 3% 7 mph S 64%
1 AM 26° Mostly Clear 3% 7 mph SSW 66%
2 AM 26° Clear 3% 7 mph SSW 68%
3 AM 25° Clear 3% 6 mph SSW 70%
4 AM 24° Mostly Clear 3% 6 mph SSW 71%
5 AM 23° Mostly Clear 3% 6 mph SSW 71%
6 AM 23° Mostly Clear 3% 6 mph S 72%
7 AM 24° Mostly Clear 3% 7 mph SSW 68%
15-Day Forecast
Today
9/9
Mostly Clear
13%
23°
38°
Thu
9/10
Partly Cloudy
25%
23°
39°
Fri
9/11
Rain
69%
21°
37°
Sat
9/12
Partly Cloudy
35%
20°
38°
Sun
9/13
Rain
30%
21°
39°
Mon
9/14
Clear
17%
22°
39°
Tue
9/15
Rain
28%
23°
39°
Wed
9/16
Rain
69%
22°
39°
Thu
9/17
Drizzle
68%
22°
39°
Fri
9/18
Rain
68%
22°
38°
Sat
9/19
Drizzle
60%
21°
36°
Sun
9/20
Clear
60%
20°
36°
Mon
9/21
Drizzle
60%
20°
35°
Tue
9/22
Drizzle
60%
19°
34°
Wed
9/23
Drizzle
60%
18°
33°
52
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
52 AQI 9.9 µg/m³
O3
Ground-level ozone
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 52 Moderate 44 52
Fri 51 Moderate 43 51
Sat 45 Good 45 28
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 Sep 9, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE298 J/kg
MLCAPE259 J/kg
MUCAPE711 J/kg
SBCIN-163 J/kg
MLCIN-134 J/kg
Lifted Index-0.2
Kinematics
0–6 km Shear1 kt
0–1 km Shear13 kt
Eff. Shear4 kt
0–1 km SRH1
0–3 km SRH40
Eff. SRH40
Storm Motion145° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.7
Thermo & Levels
PWAT1.85 in
0–3 km LR5.7 °C/km
700–500 LR4.5 °C/km
Total Totals41.6
LCL942 hPa
LFC464 hPa
EL207 hPa
Freezing Lvl16,683 ft