Temperature
57 F at 8 PM; 81 F at its warmest, 3 PM, and 46 F at its coolest, 6 AM.
- Now
- 57F
- 8 PM
- Highest
- 81F
- 3 PM
- Lowest
- 46F
- 6 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/Columbia Airport
Columbia Airport, California
Small airport in Tuolumne County, California...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PDT FRIDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTHERN CALIFORNIA... * AFFECTED AREA...Portions of Sierra Nevada and adjacent Foothills. * TIMING...Until 10 AM PDT Friday. * WINDS...Northeast to east winds 15 to 25 mph with gusts 25 to 45 mph. * RELATIVE HUMIDITY...Daytime humidity 10 to 20% with single digits possible and very poor overnight recoveries. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.
Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.
59°
84°/51°
Clear·
Feels like 59°·Light air 2 mph ENE
Alert. A Red Flag Warning is in force for Columbia Airport until 10 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Columbia Airport is 59° and clear at 9 PM. The dew point is 34°, so the air feels dry and comfortable. Light air from the east-northeast at 2 mph.
Today and tonight. Tonight falls to about 60° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is Saturday, near 86°, and the coolest Tuesday, near 63°. Rain is possible Tuesday (30%) and Wednesday (35%).
The sky now. The Moon is a waxing crescent, 26% lit, and sets at 9:35 PM. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 15 minutes long, 2 minutes shorter than yesterday.
0UV Low
42Air quality
44%Humidity
0%Cloud
Now
9:00 PM
59feels59
now, clear
Today
Oct 15
8451
UV 7
Fri
Oct 16
8460
UV 7
Sat
Oct 17
8656
UV 6
Sun
Oct 18
8255
UV 6
Mon
Oct 19
7052
mostly clear day
Tue
Oct 20
6347
30%
Wed
Oct 21
6345
35%
59°
84°51°
84°60°
86°56°
82°55°
70°52°
63°47°
63°45°
As of 9:00 PM in Columbia Airport, California.
Air quality
The air at Columbia Airport
Index 42, good, led by ozone. Read at 8 PM from its reporting area, Tuolumne County (CA), 11 miles off.
42Good
- Ozone42Good-
The days ahead
Yesterday measured 41, good.
GoodModerate
- 41YesterdayOct 14
Smoke, the next 45 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Columbia Airport
None in the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at Columbia Airport, the next 45 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- O22
- ICAO
- -
- IATA
- COA
- Field elevation
- 2,118 ft
- Serves
- Columbia
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- O22
- Wind now
- Calm, read 15 Oct, 21:15
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 11 / 29 unlit | 2,607 ft | 50 ft | Turf | 136° / 316° | Calm | Calm |
| 17 / 35 | 4,673 ft | 75 ft | Asphalt | 190° / 10° | Calm | Calm |
| H1 / H1 unlit | 100 ft | 100 ft | Asphalt | - | - | - |
| H2 / H2 unlit | 78 ft | 78 ft | Asphalt | - | - | - |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Columbia (O22), Columbia Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 34 F, the air 41% saturated; the humidity ran from 16% at 3 PM to 57% at 6 AM.
- Dew point now
- 34F
- 8 PM
- Humidity now
- 41%
- Humidity, range
- 16 to 57%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
Calm at 8 PM; at its strongest 6 mph, 12 PM, and no gust reported.
- Now
- 0mph
- calm
- Strongest
- 6mph
- 12 PM
- Highest gust
- -
- none reported
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.14 inHg at 8 PM, steady over 3 hours; 0.04 inHg lower than a day before.
- Now
- 30.14inHg
- 8 PM
- 3 hours
- +0.01inHg
- steady
- 24 hours
- -0.04inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 9 miles at 3 PM; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 9mi
- 3 PM
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Columbia: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 6 instruments nearest Columbia Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now4 instruments
ColumbiaO22
At an airfield/0.0 mi away/2,119 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
Columbia CollegeOMBC1
On a college campus/1.4 mi away/2,257 ft/139 ft above here
temp, wind, gust, humidity, pressure
At a climate reference station/37.8 mi away/6,620 ft/4,502 ft above here
temp, humidity, wind, solar, precip
SR-219 - East of Pentecost DriveCF124
Beside a road/38.8 mi away/104 ft/2,014 ft below here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Sonora 0.6 WNWCA-TM-8
In a volunteer observer's own ground/3.3 mi away/1,873 ft/245 ft below here
precip, snowfall, snow depth
Sonora - New MelonesNMDC1
At a cooperative observer's station/4.3 mi away/1,159 ft/959 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Sonora - New Melones (NMDC1), 4.3 miles from here, read 15 Oct, 07:20. measured daily
Elsewhere in California
33 places, each with its own forecast and its own instruments.
Big Bear Mountainski areaBishopcityBridgeporttownChina Peakski areaDodge Ridgeski areaDonner PassfeatureFresnocityHeavenlysurveyed ski areaHomewoodski areaJune Mountainski areaKirkwoodsurveyed ski areaLos AngelescityMammoth LakestownMammoth Mountainsurveyed ski areaMount ShastafeatureMount Shasta CitycityMount Shasta Ski Parkski areaMount WhitneyfeatureMountain Highski areaNorthstarsurveyed ski areaPalisades Tahoesurveyed ski areaReddingcitySacramentocitySan DiegocitySan FranciscocitySierra NevadafeatureSierra-at-Tahoeski areaSnow Valleyski areaSouth Lake TahoecitySugar Bowlski areaSusanvillecityTruckeetownYosemitefeature
Near Columbia Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Columbiacommunity, 1 mi
- Tuttletowncommunity, 4 mi
- Sonoracity, 4 mi
- Vallecitocommunity, 5 mi
- East Sonoracommunity, 5 mi
- Jamestowncommunity, 5 mi
- Phoenix Lakecommunity, 6 mi
- Douglas Flatcommunity, 6 mi
- Murphyscommunity, 8 mi
- Mono Vistacommunity, 8 mi
- Cedar Ridgecommunity, 8 mi
- Angelscity, 8 mi
Airports near Columbia Airport
- Calaveras Co Maury Rasmussen FieldCPU, 15 mi
- Westover Field Amador County AirportJAQ, 32 mi
- Modesto City Co-Harry Sham FieldMOD, 41 mi
- Castle AirportMER, 46 mi
- Stockton Metropolitan AirportSCK, 46 mi
- Placerville AirportPVF, 51 mi
- Merced Regional Macready FieldMCE, 52 mi
- Sacramento Mather AirportMHR, 60 mi