Long term forecast for Tromsø (Troms)
The meteorologist’s forecast (in Norwegian)
Nordland og Troms Friday and Saturday: Lørdag er det lokalt stor snøskredfare i Nordland og Troms.
Troms Saturday and Sunday: Skiftende bris, periodevis nordøstlig liten kuling 12 på kysten. I kveld kan hende nordlig stiv kuling 15 på kysten vest for Lyngsalpan. Søndag liten kuling 12 mellom nordvest og nordøst på kysten. Snøbyger. Søndag kveld sørøstlig frisk bris 10. Avtagende bygeaktivitet utover søndag.
Troms Monday: Nordlig bris. Liten kuling utsatte steder på kysten. Enkelte snøbyger, vesentlig på kysten. Uendret eller litt lavere temperatur.
Nord-Norge Tuesday to Friday: Nordvestlig bris senere bris av skiftende retning. Snø og snøbyger, forøvrig lange perioder med pent vær. Små temperaturendringer.
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
|
|
-2° |
|
|
Rather certain
|
Rather certain
|
Rather certain
|
Snow showers. Light breeze, 2 m/s from south. 1.8 mm precipitation per 24 hours.
Monday
15/03/2010
|
-4° |
|
|
Somewhat uncertain
|
Rather certain
|
Rather certain
|
Fair. Gentle breeze, 4 m/s from south. 0 mm precipitation per 24 hours.
Tuesday
16/03/2010
|
-6° |
|
|
Somewhat uncertain
|
Rather certain
|
Rather certain
|
Cloudy. Light breeze, 2 m/s from southwest. 0 mm precipitation per 24 hours.
Wednesday
17/03/2010
|
-6° |
|
|
Somewhat uncertain
|
Somewhat uncertain
|
Rather certain
|
Partly cloudy. Light breeze, 3 m/s from south-southwest. 0 mm precipitation per 24 hours.
Thursday
18/03/2010
|
|
-6° |
|
|
Somewhat uncertain
|
Somewhat uncertain
|
Rather certain
|
Partly cloudy. Light breeze, 3 m/s from south-southeast. 0 mm precipitation per 24 hours.
Friday
19/03/2010
|
|
-6° |
|
|
Uncertain
|
Somewhat uncertain
|
Rather certain
|
Cloudy. Light breeze, 3 m/s from southeast. 0 mm precipitation per 24 hours.
Saturday
20/03/2010
|
|
-6° |
|
|
Uncertain
|
Uncertain
|
Rather certain
|
Fair. Light breeze, 3 m/s from south. 0 mm precipitation per 24 hours.
Sunday
21/03/2010
|
|
-6° |
|
|
Uncertain
|
Uncertain
|
Rather certain
|
Cloudy. Light breeze, 3 m/s from east-southeast. 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
[eng:punkt/sannsyn:forklaring]
