Heat Advisory — Western Siskiyou County, CA, Central Siskiyou County, CA, North Central and Southeast Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA 1:00 AM

Modoc County, California, United States

Last updated: 4:25 AM CDT  ·  Refresh
18°C
Feels like 15°
Clear
▲ 39°  /  ▼ 12°
Wind
4 mph N
Humidity
28%
Dew Point
-1°
Pressure
25.23 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
2%
Sunrise
6:03 AM
Sunset
8:11 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Modoc County is currently clear at 18°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:03AM · Sunset: 8:11PM.

Alerts

Heat Advisory
Western Siskiyou County, CA, Central Siskiyou County, CA, North Central and Southeast Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA
Expires 1:00 AM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
3%
3 AM
18°
3%
4 AM
17°
3%
5 AM
12°
3%
6 AM
13°
3%
7 AM
15°
3%
8 AM
18°
3%
9 AM
23°
3%
10 AM
27°
3%
11 AM
29°
3%
12 PM
30°
3%
1 PM
35°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
39°
3%
6 PM
37°
3%
7 PM
34°
3%
8 PM
32°
3%
9 PM
28°
3%
10 PM
26°
3%
11 PM
24°
3%
12 AM
23°
3%
1 AM
21°
3%
7-Day Forecast
Today
39° 12°
Clear.
Sun
37° 12°
Clear.
Mon
37° 9°
Clear.
Tue
37° 10°
Clear.
Wed
37° 9°
Clear.
Thu
36° 11°
Clear.
Fri
31° 13°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Clear 3% 4 mph N 28%
3 AM 18° Clear 3% 5 mph NNE 28%
4 AM 17° Clear 3% 5 mph NNE 28%
5 AM 12° Clear 3% 5 mph NE 28%
6 AM 13° Clear 3% 5 mph ENE 27%
7 AM 15° Clear 3% 4 mph ENE 25%
8 AM 18° Clear 3% 2 mph ESE 22%
9 AM 23° Clear 3% 2 mph SSW 18%
10 AM 27° Clear 3% 4 mph WSW 15%
11 AM 29° Clear 3% 6 mph WSW 12%
12 PM 30° Clear 3% 8 mph WSW 11%
1 PM 35° Clear 3% 11 mph W 10%
2 PM 36° Clear 3% 13 mph W 10%
3 PM 36° Clear 3% 14 mph W 9%
4 PM 36° Clear 3% 14 mph W 8%
5 PM 39° Clear 3% 13 mph WNW 9%
6 PM 37° Clear 3% 12 mph NW 11%
7 PM 34° Clear 3% 12 mph NW 12%
8 PM 32° Clear 3% 11 mph NW 15%
9 PM 28° Clear 3% 10 mph NW 20%
10 PM 26° Clear 3% 9 mph NNW 24%
11 PM 24° Clear 3% 8 mph NNW 27%
12 AM 23° Clear 3% 7 mph NNW 30%
1 AM 21° Clear 3% 7 mph NNW 33%
15-Day Forecast
Today
8/8
Clear
3%
12°
39°
Sun
8/9
Clear
3%
12°
37°
Mon
8/10
Clear
3%
9°
37°
Tue
8/11
Clear
3%
10°
37°
Wed
8/12
Clear
3%
9°
37°
Thu
8/13
Clear
8%
11°
36°
Fri
8/14
Rain
28%
13°
31°
Sat
8/15
Drizzle
43%
11°
33°
Sun
8/16
Drizzle
44%
11°
31°
Mon
8/17
Clear
27%
9°
32°
Tue
8/18
Drizzle
60%
12°
32°
Wed
8/19
Clear
25%
12°
30°
Thu
8/20
Drizzle
60%
11°
29°
Fri
8/21
Clear
25%
11°
31°
Sat
8/22
Clear
25%
11°
32°
44
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
36 AQI 6.4 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 44 36
Sun 181 Unhealthy 51 181
Mon 165 Unhealthy 61 165
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sat Aug 8, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE0 J/kg
SBCIN-11413 J/kg
MLCIN0 J/kg
Lifted Index10.5
Kinematics
0–6 km Shear20 kt
0–1 km Shear2 kt
Eff. Shear—
0–1 km SRH-11
0–3 km SRH-118
Eff. SRH—
Storm Motion192° @ 19 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index6.7
Thermo & Levels
PWAT0.57 in
0–3 km LR4.8 °C/km
700–500 LR7.9 °C/km
Total Totals35.6
LCL639 hPa
LFC—
EL—
Freezing Lvl11,444 ft