Sierraville - Rice CanyonRNYC1
At a river or reservoir gauge/6.1 mi away/6,894 ft/24 ft below here
temp, wind, gust, humidity, pressure
Mountain passes/California/Henness Pass
Henness Pass, California
Mountain pass in Sierra County, California, at 6,918 ft...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.
47°
66°/35°
Clear·
Feels like 42°·Gentle breeze 10 mph ESE
Alert. A Red Flag Warning is in force for Henness Pass until 10 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Henness Pass is 47° and clear at 9 PM. With the wind it feels like 42°. The dew point is 23°, so the air feels dry and comfortable. Gentle breeze from the east-southeast at 10 mph, gusting to 23 mph.
Today and tonight. Tonight falls to about 34° by 7 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots. No rain is expected for the rest of the day.
The week. The warmest day ahead is tomorrow, near 68°, and the coolest Wednesday, near 47°. Rain is possible Tuesday (49%) and Wednesday (42%). The first freeze could come Tuesday, a low of 29°.
The sky now. The Moon is a waxing crescent, 26% lit, and sets at 9:29 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 12 minutes long, 3 minutes shorter than yesterday.
0UV Low
24Air quality
31%Humidity
0%Cloud
Now
9:00 PM
47feels42
now, clear
Today
Oct 15
6635
13mph
UV 7
Fri
Oct 16
6834
UV 7
Sat
Oct 17
6836
UV 6
Sun
Oct 18
6535
UV 6
Mon
Oct 19
5835
partly cloudy day
Tue
Oct 20
4829
49%
Wed
Oct 21
4729
42%
47°
66°35°
68°34°
68°36°
65°35°
58°35°
48°29°
47°29°
As of 9:00 PM in Henness Pass, California.
Air quality
The air at Henness Pass
Index 24, good, led by fine particles. Read at 8 PM from its reporting area, Truckee (CA), 18 miles off.
24Good
- Fine particles (PM2.5)24Good18.1 mi
The days ahead
Yesterday measured 14, good.
GoodModerate
- 14YesterdayOct 14
Smoke, the next 45 hours
No smoke near the ground through Sat 5 PM.
Precipitation
What has fallen at Henness Pass
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 Henness Pass, 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
Mountain pass
- Height
- 6,918 ft
- County
- Sierra County
- State
- California
- Latitude
- 39.5027° N
- Longitude
- 120.4394° W
What is measuring near here
The 6 instruments nearest Henness Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.1 miles away.
measured now4 instruments
Beside a road/12.3 mi away/7,198 ft/280 ft above here
temp, pavement temp, wind, visibility, precip
Citizen station DW9436DW9436
In a volunteer observer's own ground/17.1 mi away/5,756 ft/1,162 ft below here
temp, humidity, wind, precip, pressure
At an airfield/20.4 mi away/5,899 ft/1,019 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
At a cooperative observer's station/6.7 mi away/4,980 ft/1,938 ft below here
snowfall, snow depth, precip, high, low
Emigrant Gap 7.4 ECA-PC-52
In a volunteer observer's own ground/14.5 mi away/5,657 ft/1,261 ft below here
precip, snowfall, snow depth
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
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 Henness Pass
The nearest places, each with its own forecast and the instruments nearest it.
- Sierravillecommunity, 7 mi
- Sattleycommunity, 9 mi
- Sierra Citycommunity, 11 mi
- Calpinecommunity, 11 mi
- Soda Springscommunity, 13 mi
- Kingvalecommunity, 13 mi
- Donner Passfeature, 14 mi
- Sugar Bowlski area, 15 mi
- Sierra Brookscommunity, 15 mi
- Granitevillecommunity, 16 mi
- Loyaltoncity, 16 mi
- Whitehawkcommunity, 16 mi
Mountain passes near Henness Pass
- Yuba Pass8 mi
- Castle Pass11 mi
- Donner Pass14 mi
- Beckwourth Pass27 mi
- Bagley Pass31 mi
- Barker Pass31 mi
- Phipps Pass41 mi
- Rockbound Pass43 mi