Areal Flood Watch 1:00 AM

Letcher County, Kentucky, United States

Last updated: 12:36 AM CDT  ·  Refresh
22°C
Feels like 26°
Mostly Cloudy
▲ 28°  /  ▼ 15°
Wind
4 mph SW
Humidity
95%
Dew Point
22°
Pressure
28.27 inHg
Visibility
6 mi
UV Index
0.0
Cloud Cover
68%
Sunrise
6:28 AM
Sunset
8:46 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Letcher County is currently mostly cloudy at 22°C. Precipitation is likely — peak probability 61% around 1 AM. Atmospheric instability is elevated (CAPE up to 739 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 8:46PM.

Alerts

Areal Flood Watch
Expires 1:00 AM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
61%
2 AM
23°
44%
3 AM
22°
47%
4 AM
22°
47%
5 AM
21°
46%
6 AM
21°
43%
7 AM
21°
27%
8 AM
21°
40%
9 AM
22°
31%
10 AM
23°
35%
11 AM
24°
44%
12 PM
25°
44%
1 PM
28°
35%
2 PM
28°
35%
3 PM
28°
36%
4 PM
28°
39%
5 PM
27°
34%
6 PM
26°
33%
7 PM
25°
30%
8 PM
24°
20%
9 PM
23°
20%
10 PM
23°
20%
11 PM
22°
18%
12 AM
21°
18%
7-Day Forecast
Today
28° 15°
Mostly Cloudy with a 61% chance of rain.
Thu
28° 15°
Mostly Clear.
Fri
29° 16°
Partly Cloudy with a 72% chance of rain.
Sat
28° 19°
Rain, 70% chance.
Sun
30° 19°
Rain, 70% chance.
Mon
33° 20°
Heavy Rain, 82% chance.
Tue
34° 19°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Cloudy 61% 4 mph SW 95%
2 AM 23° Partly Cloudy 44% 4 mph SW 97%
3 AM 22° Mostly Cloudy 47% 4 mph SW 97%
4 AM 22° Mostly Cloudy 47% 3 mph SW 97%
5 AM 21° Rain 46% 3 mph SW 96%
6 AM 21° Mostly Cloudy 43% 3 mph WSW 96%
7 AM 21° Mostly Cloudy 27% 3 mph W 96%
8 AM 21° Mostly Cloudy 40% 3 mph WNW 94%
9 AM 22° Mostly Cloudy 31% 4 mph WNW 90%
10 AM 23° Mostly Cloudy 35% 4 mph WNW 86%
11 AM 24° Mostly Cloudy 44% 5 mph WNW 80%
12 PM 25° Partly Cloudy 44% 6 mph WNW 74%
1 PM 28° Partly Cloudy 35% 6 mph WNW 67%
2 PM 28° Partly Cloudy 35% 7 mph WNW 65%
3 PM 28° Partly Cloudy 36% 7 mph WNW 67%
4 PM 28° Mostly Cloudy 39% 7 mph WNW 68%
5 PM 27° Mostly Cloudy 34% 6 mph NW 71%
6 PM 26° Mostly Cloudy 33% 5 mph NW 74%
7 PM 25° Mostly Cloudy 30% 5 mph NW 79%
8 PM 24° Mostly Cloudy 20% 5 mph NW 80%
9 PM 23° Partly Cloudy 20% 5 mph NW 80%
10 PM 23° Partly Cloudy 20% 5 mph NNW 79%
11 PM 22° Partly Cloudy 18% 5 mph NNW 80%
12 AM 21° Partly Cloudy 18% 5 mph NNW 80%
15-Day Forecast
Today
7/22
Mostly Cloudy
61%
15°
28°
Thu
7/23
Mostly Clear
12%
15°
28°
Fri
7/24
Partly Cloudy
72%
16°
29°
Sat
7/25
Rain
70%
19°
28°
Sun
7/26
Rain
70%
19°
30°
Mon
7/27
Heavy Rain
82%
20°
33°
Tue
7/28
Drizzle
63%
19°
34°
Wed
7/29
Drizzle
53%
17°
33°
Thu
7/30
Drizzle
44%
17°
31°
Fri
7/31
Drizzle
51%
16°
29°
Sat
8/1
Drizzle
60%
16°
30°
Sun
8/2
Drizzle
60%
17°
31°
Mon
8/3
Drizzle
60%
17°
31°
Tue
8/4
Drizzle
60%
18°
31°
Wed
8/5
Drizzle
60%
18°
31°
43
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
43 AQI 7.8 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 43 Good 31 43
Thu 30 Good 30 28
Fri 33 Good 33 25
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, 04:00'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
SBCAPE589 J/kg
MLCAPE444 J/kg
MUCAPE771 J/kg
SBCIN-43 J/kg
MLCIN0 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear41 kt
0–1 km Shear28 kt
Eff. Shear41 kt
0–1 km SRH-117
0–3 km SRH-108
Eff. SRH-108
Storm Motion239° @ 35 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.2
Thermo & Levels
PWAT1.68 in
0–3 km LR5.0 °C/km
700–500 LR5.4 °C/km
Total Totals44.6
LCL947 hPa
LFC780 hPa
EL200 hPa
Freezing Lvl14,777 ft