Freeze Warning — South Central Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA, Klamath Basin, OR, Northern and Eastern Klamath County and Western Lake County, OR, Central and Eastern Lake County, OR 11:00 AM

Modoc County, California, United States

Last updated: 8:26 AM CDT  ·  Refresh
4°C
Feels like 2°
Clear
▲ 23°  /  ▼ 3°
Wind
4 mph ENE
Humidity
78%
Dew Point
1°
Pressure
25.19 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:34 AM
Sunset
7:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Modoc County is currently clear at 4°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:34AM · Sunset: 7:25PM.

Alerts

Freeze Warning
South Central Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA, Klamath Basin, OR, Northern and Eastern Klamath County and Western Lake County, OR, Central and Eastern Lake County, OR
Expires 11:00 AM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
4°
3%
7 AM
3°
3%
8 AM
6°
3%
9 AM
9°
3%
10 AM
12°
3%
11 AM
14°
3%
12 PM
16°
3%
1 PM
19°
3%
2 PM
20°
3%
3 PM
21°
3%
4 PM
22°
3%
5 PM
23°
3%
6 PM
21°
3%
7 PM
19°
3%
8 PM
17°
3%
9 PM
15°
3%
10 PM
14°
3%
11 PM
13°
3%
12 AM
12°
3%
1 AM
10°
3%
2 AM
9°
3%
3 AM
9°
3%
4 AM
9°
3%
5 AM
8°
3%
7-Day Forecast
Today
23° 3°
Clear.
Tue
27° 8°
Partly Cloudy.
Wed
31° 9°
Clear.
Thu
27° 12°
Mostly Clear.
Fri
26° 10°
Clear.
Sat
21° 7°
Mostly Clear.
Sun
21° 3°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 4° Clear 3% 4 mph ENE 78%
7 AM 3° Clear 3% 4 mph ENE 71%
8 AM 6° Clear 3% 3 mph E 65%
9 AM 9° Clear 3% 4 mph ESE 55%
10 AM 12° Clear 3% 4 mph SE 45%
11 AM 14° Clear 3% 3 mph SE 37%
12 PM 16° Clear 3% 3 mph S 31%
1 PM 19° Clear 3% 3 mph SW 26%
2 PM 20° Clear 3% 3 mph WSW 23%
3 PM 21° Clear 3% 3 mph W 22%
4 PM 22° Clear 3% 4 mph WNW 20%
5 PM 23° Clear 3% 4 mph NW 20%
6 PM 21° Clear 3% 5 mph NNW 23%
7 PM 19° Clear 3% 6 mph N 25%
8 PM 17° Clear 3% 6 mph N 28%
9 PM 15° Clear 3% 5 mph NNE 32%
10 PM 14° Clear 3% 5 mph NNE 35%
11 PM 13° Clear 3% 4 mph NE 39%
12 AM 12° Clear 3% 4 mph NE 42%
1 AM 10° Clear 3% 5 mph NE 44%
2 AM 9° Clear 3% 5 mph NE 45%
3 AM 9° Clear 3% 5 mph NE 46%
4 AM 9° Clear 3% 5 mph NE 48%
5 AM 8° Clear 3% 5 mph NE 48%
15-Day Forecast
Today
9/7
Clear
3%
3°
23°
Tue
9/8
Partly Cloudy
3%
8°
27°
Wed
9/9
Clear
3%
9°
31°
Thu
9/10
Mostly Clear
3%
12°
27°
Fri
9/11
Clear
3%
10°
26°
Sat
9/12
Mostly Clear
3%
7°
21°
Sun
9/13
Clear
3%
3°
21°
Mon
9/14
Clear
8%
6°
24°
Tue
9/15
Mostly Clear
3%
8°
26°
Wed
9/16
Partly Cloudy
3%
8°
25°
Thu
9/17
Clear
25%
10°
25°
Fri
9/18
Clear
25%
9°
24°
Sat
9/19
Drizzle
60%
9°
24°
Sun
9/20
Clear
60%
9°
24°
Mon
9/21
Drizzle
60%
9°
23°
35
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
12 AQI 2.2 µg/m³
O3
Ground-level ozone
Dominant
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 35 Good 35 12
Wed 40 Good 40 14
Thu 36 Good 36 17
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 Mon Sep 7, 11:00'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
SBCAPE0 J/kg
MLCAPE9 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index14.4
Kinematics
0–6 km Shear40 kt
0–1 km Shear9 kt
Eff. Shear—
0–1 km SRH46
0–3 km SRH69
Eff. SRH—
Storm Motion336° @ 25 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index4.0
Thermo & Levels
PWAT0.32 in
0–3 km LR3.0 °C/km
700–500 LR5.0 °C/km
Total Totals32.0
LCL817 hPa
LFC—
EL—
Freezing Lvl6,152 ft