Long term forecast forSvarttjern, Kongsberg (Viken)

  1. Applies to Oestafjells

    Locally large forest fire hazard.

    Severity
    Yellow severity - moderate danger
    Orange severity - considerable danger
    Red severity - extreme danger
    The colour tells you how severe the situation can become (hjelp.yr.no)

    InstructionsFollow the instructions from the local authorities. Emergency services should assess a necessary level of alertness.

    ConsequencesVegetation is very easily ignited and very large areas may be affected.

    Tidslinje

    1. Friday July 23, 2021 07:00 - Increasing danger
    2. Ukjent sluttidspunkt
    Map of high forest fire danger, orange level, Oestafjells, 23 July 05:00 UTC to 26 July 22:00 UTC.
  2. Applies to Oestafjells

    From Monday afternoon to late Tuesday evening heavy rain showers is expected, first in southern parts. There will be large local variations in intensity and duration, and the weather conditions can change rapidly.

    Severity
    Yellow severity - moderate danger
    Orange severity - considerable danger
    Red severity - extreme danger
    The colour tells you how severe the situation can become (hjelp.yr.no)

    InstructionsKeep yourself informed of the latest weather developments and forecasts. Follow the weather situation on the rain radar. Stay away from steep slopes as well as fast flowing streams. The need for emergency preparedness shall be assessed continuously by emergency response actors. Cleaning of drainage systems and culverts is recommended so that the water can drain away. Adjust the speed and use caution while driving.

    ConsequencesRisk of storm water in urban areas, local flooding, stream bank erosion, changing waterways, shallow landslides at locations impacted by showers. Locally difficult driving conditions, especially at waterways. Roads may be closed. Road conditions affected with road spray and hydroplaning in some places.

    Tidslinje

    1. Monday July 26, 2021 12:00 - Increasing danger
    2. Ukjent sluttidspunkt
    Map of heavy rainshowers, yellow level, Oestafjells, 26 July 10:00 UTC to 27 July 22:00 UTC.
  3. Applies to Oestfold, Akershus, Oslo, Buskerud, Vestfold, Telemark, Aust-Agder, Vest-Agder and Rogaland

    Monday afternoon a lot of lightning and thunder is observed along the coast of Agder. It is expected that the risk of thunder will spread to the areas around Oslofjorden and to inner the areas. The risk of thunder is expected to last until Tuesday evening. There will be large lokale differences in intensity and some places will probably not experience thunder.

    Severity
    Yellow severity - moderate danger
    Orange severity - considerable danger
    Red severity - extreme danger
    The colour tells you how severe the situation can become (hjelp.yr.no)

    InstructionsStay up to date on the development of the weather and the weather forecast. Monitor the weather radar or lyn.met.no. Assess the need for preventive measures. Disconnect electrical appliances. Seek shelter. Avoid open plains and large trees. Do not swim or bathe.

    ConsequencesThunderstorms can lead to locally strong wind gusts. Danger of damage to object(s) as a result of lightning strikes. The power supply and TV / internet may be affected. Lightning strikes can cause fires in buildings or forests/vegetation.

    Tidslinje

    1. Monday July 26, 2021 16:00 - Increasing danger
    2. Wednesday July 28, 2021 00:00 - Danger is over
    Map of frequent lightning ongoing, yellow level, Oestfold, Akershus, Oslo, Buskerud, Vestfold, Telemark, Aust-Agder, Vest-Agder and Rogaland, 26 July 14:00 UTC to 27 July 22:00 UTC.
Long term forecast
Tuesday27 July12–18 Wednesday28 July12–18 Thursday29 July14–20 Friday30 July14–20 Saturday31 July14–20 Sunday1 August14–20 Monday2 August14–20 Tuesday3 August14–20 Wednesday4 August14–20
Heavy rain.
Partly cloudy.
Rain showers.
Partly cloudy.
Partly cloudy.
Partly cloudy.
Partly cloudy.
Partly cloudy.
Partly cloudy.
16° 17° 14° 15° 16° 14° 14° 14° 14°
10.9 mm 0 mm 1.9 mm 0 mm 0 mm 0 mm 0 mm 0 mm 0 mm
Light breeze, 3 m/s from northeast Light breeze, 2 m/s from south-southwest Light breeze, 3 m/s from south Light breeze, 3 m/s from west-southwest Light breeze, 2 m/s from west-southwest Light breeze, 3 m/s from north-northwest Light breeze, 3 m/s from west-northwest Light breeze, 3 m/s from west-southwest Light breeze, 3 m/s from west
  • Rather certain
  • Somewhat uncertain
  • Uncertain
Detailed long term forecast
Date Time Forecast Temp. Precipitation Wind
Tuesday 27/07/2021 00:00–06:00
Heavy rain.
14° 6.9 mm Light breeze, 2 m/s from east-southeastLight breeze, 2 m/s from east-southeast
06:00–12:00
Heavy rain.
14° 7.7 mm Light air, 1 m/s from eastLight air, 1 m/s from east
12:00–18:00
Heavy rain.
16° 10.9 mm Light breeze, 3 m/s from northeastLight breeze, 3 m/s from northeast
18:00–00:00
Rain.
16° 1.4 mm Light breeze, 2 m/s from southeastLight breeze, 2 m/s from southeast
Wednesday 28/07/2021 00:00–06:00
Rain.
15° 1.6 mm Light breeze, 2 m/s from eastLight breeze, 2 m/s from east
06:00–12:00
Light rain.
15° 0.6 mm Light air, 1 m/s from east-southeastLight air, 1 m/s from east-southeast
12:00–18:00
Partly cloudy.
17° 0 mm Light breeze, 2 m/s from south-southwestLight breeze, 2 m/s from south-southwest
18:00–00:00
Partly cloudy.
16° 0 mm Light breeze, 3 m/s from southLight breeze, 3 m/s from south
Thursday 29/07/2021 02:00–08:00
Rain.
13° 2.5 mm Light breeze, 2 m/s from south-southwestLight breeze, 2 m/s from south-southwest
08:00–14:00
Rain.
12° 3.1 mm Light air, 1 m/s from southeastLight air, 1 m/s from southeast
14:00–20:00
Rain showers.
14° 1.9 mm Light breeze, 3 m/s from southLight breeze, 3 m/s from south
20:00–02:00
Fair.
14° 0 mm Gentle breeze, 4 m/s from west-southwestGentle breeze, 4 m/s from west-southwest
Friday 30/07/2021 02:00–08:00
Partly cloudy.
10° 0 mm Light breeze, 3 m/s from south-southwestLight breeze, 3 m/s from south-southwest
08:00–14:00
Cloudy.
10° 0 mm Light breeze, 2 m/s from south-southwestLight breeze, 2 m/s from south-southwest
14:00–20:00
Partly cloudy.
15° 0 mm Light breeze, 3 m/s from west-southwestLight breeze, 3 m/s from west-southwest
20:00–02:00
Partly cloudy.
14° 0 mm Light breeze, 2 m/s from southLight breeze, 2 m/s from south
Saturday 31/07/2021 02:00–08:00
Partly cloudy.
11° 0 mm Light breeze, 2 m/s from north-northeastLight breeze, 2 m/s from north-northeast
08:00–14:00
Partly cloudy.
11° 0 mm Light breeze, 3 m/s from north-northwestLight breeze, 3 m/s from north-northwest
14:00–20:00
Partly cloudy.
16° 0 mm Light breeze, 2 m/s from west-southwestLight breeze, 2 m/s from west-southwest
20:00–02:00
Partly cloudy.
14° 0 mm Light air, 1 m/s from southLight air, 1 m/s from south
Sunday 01/08/2021 02:00–08:00
Partly cloudy.
10° 0 mm Light breeze, 2 m/s from northLight breeze, 2 m/s from north
08:00–14:00
Partly cloudy.
0 mm Light breeze, 3 m/s from northeastLight breeze, 3 m/s from northeast
14:00–20:00
Partly cloudy.
14° 0 mm Light breeze, 3 m/s from north-northwestLight breeze, 3 m/s from north-northwest
20:00–02:00
Partly cloudy.
12° 0 mm Light breeze, 2 m/s from south-southeastLight breeze, 2 m/s from south-southeast
Monday 02/08/2021 02:00–08:00
Fair.
0 mm Light breeze, 2 m/s from northwestLight breeze, 2 m/s from northwest
08:00–14:00
Partly cloudy.
0 mm Light breeze, 3 m/s from northwestLight breeze, 3 m/s from northwest
14:00–20:00
Partly cloudy.
14° 0 mm Light breeze, 3 m/s from west-northwestLight breeze, 3 m/s from west-northwest
20:00–02:00
Partly cloudy.
12° 0 mm Light breeze, 2 m/s from westLight breeze, 2 m/s from west
Tuesday 03/08/2021 02:00–08:00
Partly cloudy.
0 mm Light breeze, 2 m/s from north-northwestLight breeze, 2 m/s from north-northwest
08:00–14:00
Partly cloudy.
0 mm Light breeze, 2 m/s from west-northwestLight breeze, 2 m/s from west-northwest
14:00–20:00
Partly cloudy.
14° 0 mm Light breeze, 3 m/s from west-southwestLight breeze, 3 m/s from west-southwest
20:00–02:00
Partly cloudy.
12° 0 mm Light breeze, 2 m/s from south-southeastLight breeze, 2 m/s from south-southeast
Wednesday 04/08/2021 02:00–08:00
Partly cloudy.
0 mm Light breeze, 2 m/s from northLight breeze, 2 m/s from north
08:00–14:00
Partly cloudy.
10° 0 mm Light breeze, 2 m/s from north-northeastLight breeze, 2 m/s from north-northeast
14:00–20:00
Partly cloudy.
14° 0 mm Light breeze, 3 m/s from westLight breeze, 3 m/s from west

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