Long term forecast for Longyearbyen (Svalbard)
The meteorologist’s forecast (in Norwegian)
Spitsbergen Sunday and Monday: Minking til nordaustlig frisk bris 10 m/s, mandag nordlig bris. Opphold og for det meste pent vær.
Spitsbergen Monday and Tuesday: Nordøstlig bris, av og til frisk bris 10 m/s. Opphold og for det meste pent vær.
Spitsbergen Wednesday: Østlig bris. Oppholdsvær. Uendret eller litt lavere temperatur.
Spitsbergen Thursday to Sunday: For en stor del nordøstlig bris, perioder med kuling utsatte steder. Snøbyger i nordlige og østlige områder, ellers lite eller ingen nedbør. Kaldt.
Can the forecast be trusted?
The long term forecasts shows the most predictable weather information. Each forecasted element, the weather symbol, temperature, and wind, is individually marked by a colour which indicates how certain it is.
- Rather certain
- Somewhat uncertain
- Uncertain
Tomorrow
|
|
-22° |
|
|
Rather certain
|
Rather certain
|
Rather certain
|
Fair. Calm, 0 m/s from south-southwest. 0 mm precipitation per 24 hours.
Wednesday
24/03/2010
|
-20° |
|
|
Rather certain
|
Rather certain
|
Rather certain
|
Cloudy. Light breeze, 2 m/s from southeast. 0 mm precipitation per 24 hours.
Thursday
25/03/2010
|
|
-22° |
|
|
Rather certain
|
Rather certain
|
Rather certain
|
Cloudy. Light breeze, 3 m/s from east-southeast. 0 mm precipitation per 24 hours.
Friday
26/03/2010
|
-21° |
|
|
Rather certain
|
Rather certain
|
Rather certain
|
Partly cloudy. Gentle breeze, 4 m/s from east. 0 mm precipitation per 24 hours.
Saturday
27/03/2010
|
|
-19° |
|
|
Somewhat uncertain
|
Rather certain
|
Rather certain
|
Partly cloudy. Light breeze, 2 m/s from east-northeast. 0 mm precipitation per 24 hours.
Sunday
28/03/2010
|
-19° |
|
|
Somewhat uncertain
|
Rather certain
|
Rather certain
|
Fair. Light breeze, 3 m/s from east. 0 mm precipitation per 24 hours.
Monday
29/03/2010
|
|
-18° |
|
|
Somewhat uncertain
|
Somewhat uncertain
|
Rather certain
|
Partly cloudy. Light breeze, 3 m/s from east. 0 mm precipitation per 24 hours.
Tuesday
30/03/2010
|
|
-18° |
|
|
Somewhat uncertain
|
Somewhat uncertain
|
Somewhat uncertain
|
Partly cloudy. Light breeze, 3 m/s from east. 0 mm precipitation per 24 hours.
The temperature and wind forecasts are valid for 12 noon, the symbol for 12 noon to 6 pm. Forecasts for the morning, evening and night are available in the detailed long term forecast.
Background, facts and advice on how to use the long term forecasts (in Norwegian).
Probability forecast
The long term forecast in the table above contains the most predictable weather information, and how certain we are that the forecast is correct.
The probability forecast in the diagram below indicates the probabilities for different possible developments of the temperature and precipitation. The long term forecast is given by black lines.
The grey fields (for temperature) and the blue fields (for precipitation) indicate the range of possible weather developments which are predominantly probable (80 percent). The width of the fields ir proportional to the degree of uncertainty of the forecast.
Within these fields, it is considered most probable (50 percent) that the development hits the dark part. Still it is somewhat probable (30 percent) that it hits the lighter part outside the dark.
Tips, advice and facts about the probability forecast (in Norwegian).
What is the probability for different weather?
The long term forecast (from the above table) is indicated with a black line.
- Temperature:
- 50 % probability
- 30 % probability
- Precipitation:
- 50 % probability
- 30 % probability
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