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Marion Island - Weather

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This page updates every 3 hours, 00:00, 03:00, 06:00... Main synoptic times are 00:00, 06:00, 12:00 and 18:00. Rainfall will only be reported at these times.

Visual observations, cloud parameters and visibility, are added by the observers. The remaining data is supplied by an Automatic Weather Station developed and owned by the South-African Weather Service.

Temperature (°C) Wind (knots) Rainfall (mm)

Current Temp: 4.3 °C
Minimum Temp: 1.1 °C
Maximum Temp: 4.6 °C		Wind Speed: 13knots
Direction: 230 °
Gust Speed: 21knots
Rainfall: No rainfallmm
Accumulation Period: None
Station:
MARION ISLAND
Synop Type:
MAIN SYNOPTIC TIME
Observation Date:
2010-11-16
Observation Time:
12:00

Present and Past Weather

Present weather is weather that was observed at or close to the station at the time of the observation or within 1 hour before the observation.

Past weather is all weather phenomena observed since the previous main synops. Main synops occur in 6 hour intervals at 00:00, 06:00, 12:00 and 18:00.

Present Weather:
Present/Past weather group missing
Past Weather:
No significant weather

No significant weather

Temperature Data

The maximum temperature is measured at 18:00 each day. At 06:00 the previous days maximum is reported. From then it will again update untill 18:00. Max, 06:00-06:00.

The minimum temperature is measured at 06:00 and again at 12:00 in case a new minimum was recorded. Min, 12:00-12:00.

Dry Bulb Temperature:
4.3 °C
Dew Point Temperature:
-2.1 °C
Maximum Temperature:
4.6 °C
Minimum Temperature:
1.1 °C

Pressure Data

The pressure tendency indicates change during the last 3 hours. The type and amount of change is measured.

Station Pressure:
1012.0 mb
Sea Level Pressure:
1014.9 mb
Pressure Change:
+0.6 mb

Rainfall Data

Accumulated rainfall is measured from 0600 to 0600 and reported here in 6hour intervals on the main synoptic times, 0600, 1200, 1800 and 0000.

Accumulated Rainfall:
No rainfallmm
Accumulation Period:
None

Wind Data

Wind direction is the direction from where the wind is blowing. The gust is taken as a 10min average gust.

Wind Direction:
230 °
Wind Speed:
13knots
Wind Gust: 21knots

Cloud Data

Total Cloud Cover:
6octas
Cloud Base:
2000-3000 feet
Total Low or Middle Cloud
2octas
Type of Low Cloud
Stratocumulus, not from spreading of cumulus
Type of Middle Cloud
No middle cloud
Type of High Cloud
Cirrus in bands converging, lower than 45degrees
Visibility
20km

 
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