Simi Valley - Cocorah StreetSIHC1
At a river or reservoir gauge/2.4 mi away/1,025 ft/701 ft below here
temp, wind, gust, humidity, pressure
Mountain passes/California/Pioneer Pass
Pioneer Pass, California
Mountain pass in Ventura County, California, at 1,726 ftRed Flag Warning, in full · Every severe alert
...HIGH RISK FOR RAPID FIRE GROWTH AND EXTREME FIRE BEHAVIOR WITH ANY NEW FIRE STARTS THROUGH SATURDAY, DUE TO MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY... .Updates include adding the following areas to the previous Red Flag Warnings - Ojai, Casitas, and the Santa Lucia Mountains. Moderate to strong Santa Ana winds will peak around Friday then slowly weaken through the weekend. Meanwhile, dry air will persist and dry out any effects of the recent rains. Red Flag Warnings are in effect for most of Los Angeles and Ventura Counties Thursday through Saturday, and for interior Santa Barbara and San Luis Obispo Counties for Friday. * AFFECTED AREA...Most valleys and coasts of Los Angeles and Ventura Counties. * TIMING...Until 8 PM PDT Saturday. * WINDS...Northeast to east 20 to 35 mph with gusts of 40 to 55 mph. Isolated gusts to 65 mph possible. Strongest Friday. * RELATIVE HUMIDITY...Minimums of 8 to 15 percent common. * IMPACTS...If fire ignition occurs, conditions are favorable for extreme fire behavior which would threaten life and property.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information.
75°
92°/66°
Clear·
Feels like 75°·Moderate breeze 14 mph NNE
Alert. A Red Flag Warning is in force for Pioneer Pass until 8 PM tomorrow. 1 more alert is in force here as well. Read the alert in full, and see what it means in the Field Book.
Now. Pioneer Pass is 75° and clear at 1 AM. The dew point is 39°, so the air feels dry and comfortable. Moderate breeze from the north-northeast at 14 mph.
Today and tonight. It warms to about 89° by 2 PM. Tonight falls to about 68° by 5 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is tomorrow, near 90°, and the coolest Wednesday, near 68°. Rain is likely Wednesday (69%). Rain is possible Tuesday (49%) and Thursday (33%).
The sky tonight. The sun sets at 6:19 PM. The Moon is a waxing crescent, 34% lit, and sets at 10:35 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-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 19 minutes long, 2 minutes shorter than yesterday.
0UV Low
35Air quality
24%Humidity
0%Cloud
Now
1:00 AM
75feels75
14mph
Today
Oct 16
9266
24mph
UV 7
Sat
Oct 17
9066
17mph
UV 7
Sun
Oct 18
8661
UV 7
Mon
Oct 19
8260
UV 7
Tue
Oct 20
7156
49%
Wed
Oct 21
6852
69%
Thu
Oct 22
6851
33%
75°
92°66°
90°66°
86°61°
82°60°
71°56°
68°52°
68°51°
As of 1:00 AM in Pioneer Pass, California.
Air quality
The air at Pioneer Pass
Index 35, good, led by ozone. Read at 1 AM from its reporting area, W San Fernando Vly (CA), 8 miles off.
35Good
- Fine particles (PM2.5)1Good2.2 mi
- Ozone35Good41 ppb2.2 mi
- Coarse particles (PM10)-2.2 mi
- Nitrogen dioxide0Good0 ppb2.2 mi
The days ahead
Good each day through Today, led by ozone. Yesterday measured 9, good.
GoodModerate
- 9YesterdayOct 15
- 44TodayOct 16
Smoke, the next 41 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Pioneer Pass
None in the last 3 days, to Fri 12 AM. 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 Pioneer Pass, the next 41 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
- 1,726 ft
- County
- Ventura County
- State
- California
- Latitude
- 34.2570° N
- Longitude
- 118.6493° W
What is measuring near here
The 5 instruments nearest Pioneer Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.
measured now3 instruments
Citizen station FW6046FW6046
In a volunteer observer's own ground/2.8 mi away/846 ft/880 ft below here
temp, humidity, wind, precip, pressure
At an airfield/9.7 mi away/801 ft/925 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Simi Valley 4.6 ECA-VT-42
In a volunteer observer's own ground/1.8 mi away/1,047 ft/679 ft below here
precip, snowfall, snow depth
Woodland Hills Pierce CollegeWPCC1
On a college campus/6.7 mi away/792 ft/934 ft below here
snowfall, snow depth, precip, high, low
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 Pioneer Pass
The nearest places, each with its own forecast and the instruments nearest it.
- Santa Susanacommunity, 1 mi
- Bell Canyoncommunity, 4 mi
- Simi Valleycity, 5 mi
- Hidden Hillscity, 7 mi
- Calabasascity, 8 mi
- Oak Parkcommunity, 8 mi
- Stevenson Ranchcommunity, 10 mi
- Agoura Hillscity, 10 mi
- Topangacommunity, 11 mi
- San Fernandocity, 12 mi
- Westlake Villagecity, 12 mi
- Val Verdecommunity, 13 mi
Mountain passes near Pioneer Pass
- Santa Susana Pass1 mi
- San Fernando Pass10 mi
- Fremont Pass10 mi
- Angels Pass17 mi
- Triunfo Pass18 mi
- Cahuenga Pass20 mi
- Coyote Pass32 mi
- Godde Pass33 mi