Flattop
Weather Forecast, United States

South Sister, South Sister Volcano

South Sister Volcano

 

Days 0-3 Flattop Weather Summary:

Light rain (total 7mm), mostly falling on Tue afternoon. Mild temperatures (max 7°C on Thu morning, min 4°C on Tue night). Winds decreasing (severe gales from the SE on Tue afternoon, light winds from the NE by Thu morning).

Days 3-6 Flattop Weather Summary:

Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 6°C on Fri night, min -4°C on Sun night). Winds decreasing (gales from the ESE on Fri night, calm by Sun morning).

PM night AM PM night AM PM night AM PM night AM PM night AM PM night AM
rain showers
partially cloudy
partially cloudy
rain showers
partially cloudy
partially cloudy
partially cloudy
rain showers
partially cloudy
partially cloudy
light rain
rain showers
partially cloudy
partially cloudy
rain showers
partially cloudy
snow showers
partially cloudy
Wind km/h
75 ESE75
25 SE25
15 SE15
20 ESE20
15 NE15
10 NE10
10 NE10
40 ESE40
25 E25
20 ENE20
35 E35
65 SE65
25 ESE25
15 ESE15
5 NE5
10 NNW10
15 NNW15
15 NNW15
rain shwrs some clouds some clouds rain shwrs some clouds some clouds some clouds rain shwrs some clouds some clouds light rain rain shwrs some clouds some clouds rain shwrs some clouds snow shwrs some clouds
See all weather maps
Rain
Rain mm
3 - - 1 - - - 3 - - 2 1 - - 1 - - -
Snow
Snow cm
- - - - - - - - - - - - - - - - 3 -
High °C
6 6 4 5 5 7 7 5 4 5 6 6 4 3 2 1 -2 -4
Low °C
6 4 4 5 5 6 6 4 4 4 4 5 4 3 2 0 -4 -4
Chill °C
-1 0 1 1 1 5 5 -1 -1 1 -1 -1 -1 -2 2 -2 -6 -9
Freezing level m
1500 1400 1250 1350 1500 1900 1900 1100 1100 1200 1250 1400 1150 1150 900 700 0 0
Sea lvl3000ft6000ft9000ft12000ft15000ft
mountain backdrop
33124551113211-1-2-5-86645577545664321-2-4
Sunrise
- - 9:03 - - 9:06 - - 9:08 - - 9:11 - - 9:15 - - 9:17
Sunset
6:22 - - 6:20 - - 6:16 - - 6:14 - - 6:10 - - 6:07 - -

Issued local time.

This table gives the weather forecast for Flattop at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Flattop. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Alaska United States.

Live conditions reported by 5 closest weather stations

Weather StationTemp.WeatherWind
Cloud
Visibility
Cloud / Visibility
Anchorage
3 km W
388.6m alt.
1 hour ago
7° C
Dry
6
Light winds from the NNE
(6 kph at 15).
Anchorage
4 km W
354m alt.
1 hour ago
6° C
Dry
6
Light winds from the ENE
(6 kph at 57).
Anchorage
5 km WNW
420m alt.
1 hour ago
5° C
Dry
8
Light winds from the W
(8 kph at 279).
Anchorage
5 km WNW
453m alt.
35 minutes ago
5° C
-
10
Light winds from the NW
(10 kph at 325).
Anchorage
5 km SW
305m alt.
1 hour ago
7° C
Dry
Wind obs. (10 kph from 38 degs) was rejected
.

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones. We also include passing Ship data if it is recorded close to Flattop and within an acceptable time window.