Areal Flood Watch 7:00 AM

Smyth County, Virginia, United States

Last updated: 2:24 AM CDT  ·  Refresh
21°C
Feels like 23°
Overcast
▲ 24°  /  ▼ 16°
Wind
7 mph WSW
Humidity
97%
Dew Point
20°
Pressure
27.38 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
86%
Sunrise
6:23 AM
Sunset
8:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Smyth County is currently overcast at 21°C. Precipitation is likely — peak probability 90% around 3 AM. Atmospheric instability is elevated (CAPE up to 958 J/kg) — isolated convective development possible. Sunrise: 6:23AM · Sunset: 8:40PM.

Alerts

Areal Flood Watch
Expires 7:00 AM
32 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
90%
4 AM
21°
83%
5 AM
21°
83%
6 AM
19°
70%
7 AM
19°
73%
8 AM
19°
83%
9 AM
20°
83%
10 AM
20°
69%
11 AM
21°
68%
12 PM
21°
73%
1 PM
21°
78%
2 PM
23°
78%
3 PM
23°
75%
4 PM
23°
71%
5 PM
23°
56%
6 PM
23°
56%
7 PM
23°
65%
8 PM
22°
59%
9 PM
22°
59%
10 PM
20°
48%
11 PM
20°
38%
12 AM
19°
38%
1 AM
19°
31%
2 AM
19°
31%
7-Day Forecast
Today
24° 16°
Rain, 90% chance.
Thu
27° 16°
Partly Cloudy with a 25% chance of rain.
Fri
25° 16°
Mostly Cloudy with a 60% chance of rain.
Sat
24° 17°
Overcast with a 80% chance of rain.
Sun
28° 17°
Rain, 70% chance.
Mon
30° 18°
Rain, 71% chance.
Tue
32° 18°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Overcast 90% 7 mph WSW 97%
4 AM 21° Overcast 83% 9 mph WSW 97%
5 AM 21° Overcast 83% 9 mph WSW 97%
6 AM 19° Mostly Cloudy 70% 8 mph WSW 97%
7 AM 19° Rain 73% 7 mph WSW 96%
8 AM 19° Thunderstorm 83% 6 mph WSW 96%
9 AM 20° Rain 83% 6 mph WSW 95%
10 AM 20° Mostly Cloudy 69% 6 mph WSW 94%
11 AM 21° Mostly Cloudy 68% 6 mph WSW 92%
12 PM 21° Rain 73% 7 mph SW 91%
1 PM 21° Mostly Cloudy 78% 8 mph SW 90%
2 PM 23° Rain 78% 8 mph SW 88%
3 PM 23° Mostly Cloudy 75% 7 mph WSW 88%
4 PM 23° Overcast 71% 7 mph WSW 87%
5 PM 23° Overcast 56% 6 mph WSW 89%
6 PM 23° Overcast 56% 5 mph WSW 91%
7 PM 23° Overcast 65% 4 mph WSW 94%
8 PM 22° Overcast 59% 4 mph W 96%
9 PM 22° Overcast 59% 4 mph W 95%
10 PM 20° Mostly Cloudy 48% 4 mph W 95%
11 PM 20° Mostly Cloudy 38% 4 mph W 94%
12 AM 19° Mostly Cloudy 38% 4 mph WNW 93%
1 AM 19° Mostly Cloudy 31% 4 mph WNW 92%
2 AM 19° Mostly Cloudy 31% 4 mph WNW 92%
15-Day Forecast
Today
7/22
Rain
90%
16°
24°
Thu
7/23
Partly Cloudy
25%
16°
27°
Fri
7/24
Mostly Cloudy
60%
16°
25°
Sat
7/25
Overcast
80%
17°
24°
Sun
7/26
Rain
70%
17°
28°
Mon
7/27
Rain
71%
18°
30°
Tue
7/28
Rain
63%
18°
32°
Wed
7/29
Rain
63%
17°
31°
Thu
7/30
Drizzle
44%
16°
28°
Fri
7/31
Rain
64%
16°
26°
Sat
8/1
Drizzle
60%
16°
28°
Sun
8/2
Drizzle
60%
16°
27°
Mon
8/3
Drizzle
60%
16°
28°
Tue
8/4
Drizzle
60%
17°
28°
Wed
8/5
Drizzle
60%
17°
29°
32
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
32 AQI 5.8 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 32 Good 31 32
Thu 32 Good 32 30
Fri 32 Good 23 32
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 22, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE479 J/kg
MLCAPE529 J/kg
MUCAPE942 J/kg
SBCIN-9 J/kg
MLCIN0 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear38 kt
0–1 km Shear26 kt
Eff. Shear38 kt
0–1 km SRH-105
0–3 km SRH-106
Eff. SRH-106
Storm Motion238° @ 39 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.7
Thermo & Levels
PWAT1.62 in
0–3 km LR5.2 °C/km
700–500 LR5.3 °C/km
Total Totals45.9
LCL915 hPa
LFC850 hPa
EL216 hPa
Freezing Lvl13,533 ft