Long term forecast forSundsfjellet, Nissedal (Vestfold og Telemark)

  1. Applies to Østlandet

    Some landslides are expected. A few large slides may occur. Exposed railways and roads may be closed. The amount of precipitation, or its location, is somewhat uncertain. Follow the weather radar. Local heavy rain showers can intensify landslide hazards where heavy rains hit. See warning for heavy rainshowers.
    Read more at NVE

    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 updated about the development of the weather, the landslide and flood situation, and follow the weather radar. Keep away from steep slopes, as well as streams and rivers with high discharge. Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides.

    ConsequencesSituation that requires vigilance and may cause local damages

  2. Applies to Østlandet

    The water discharge is expected to increase rapidly in small and medium sized rivers is expected. Local flooding and erosion damage. Large amounts of rain are expected in the warning area.
    Read more at NVE

    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 informed on the situation. Secure and/or move assets away from vulnerable areas (car, caravan along rivers/streams, basements). Cleaning of drainage paths and culverts is recommended. Keep away from rivers and streams with high flow.

    ConsequencesSituation that requires vigilance and may cause local damages

  3. Applies to Telemark, Buskerud and Oppland

    From late Saturday afternoon to early Sunday morning heavy rain showers are expected in your area. 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. 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. Road conditions affected with road spray and hydroplaning in some places.

    Tidslinje

    1. Saturday July 31, 2021 16:00 - Increasing danger
    2. Sunday August 1, 2021 02:00 - Danger is over
    Map of heavy rainshowers, yellow level, Telemark, Buskerud and Oppland, 31 July 14:00 UTC to 01 August 00:00 UTC.
  4. Applies to Telemark, Buskerud and Oppland

    From late Saturday afternoon to early Sunday morning there is a risk of thunderstorm. There will be large local differences in intensity. Some places will not experience any 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. Disconnect electrical appliances. Seek shelter. Avoid open plains and large trees. Do not swim or bathe.

    ConsequencesLocally heavy rain showers. Danger of damage to object(s) as a result of lightning strikes. Hail can occur and can e.g. provide transient slippery roads. Bigger hail can cause damage, e.g. to cars and crop.

    Tidslinje

    1. Saturday July 31, 2021 16:00 - Increasing danger
    2. Sunday August 1, 2021 02:00 - Danger is over
    Map of frequent lightning, yellow level, Telemark, Buskerud and Oppland, 31 July 14:00 UTC to 01 August 00:00 UTC.
Long term forecast
Sunday1 August12–18 Monday2 August12–18 Tuesday3 August14–20 Wednesday4 August14–20 Thursday5 August14–20 Friday6 August14–20 Saturday7 August14–20 Sunday8 August14–20 Monday9 August14–20
Rain.
Partly cloudy.
Partly cloudy.
Cloudy.
Cloudy.
Rain.
Rain.
Rain.
Cloudy.
13° 17° 16° 18° 18° 15° 16° 15° 17°
4.5 mm 0 mm 0 mm 0 mm 0 mm 3.9 mm 3.2 mm 3.0 mm 0 mm
Light air, 1 m/s from north-northwest Light air, 1 m/s from southeast Light air, 1 m/s from northwest Light air, 1 m/s from south-southeast Light breeze, 2 m/s from south-southeast Gentle breeze, 4 m/s from east-northeast Light breeze, 3 m/s from south Light breeze, 2 m/s from northeast Light breeze, 2 m/s from west-southwest
  • Rather certain
  • Somewhat uncertain
  • Uncertain
Detailed long term forecast
Date Time Forecast Temp. Precipitation Wind
Sunday 01/08/2021 00:00–06:00
Partly cloudy.
12° 0 mm Calm, 0 m/sCalm, 0 m/s
06:00–12:00
Rain.
10° 2.7 mm Light breeze, 2 m/s from westLight breeze, 2 m/s from west
12:00–18:00
Rain.
13° 4.5 mm Light air, 1 m/s from north-northwestLight air, 1 m/s from north-northwest
18:00–00:00
Partly cloudy.
11° 0 mm Light air, 1 m/s from north-northeastLight air, 1 m/s from north-northeast
Monday 02/08/2021 00:00–06:00
Clear sky.
11° 0 mm Light air, 1 m/s from westLight air, 1 m/s from west
06:00–12:00
Clear sky.
0 mm Light air, 1 m/s from southwestLight air, 1 m/s from southwest
12:00–18:00
Partly cloudy.
17° 0 mm Light air, 1 m/s from southeastLight air, 1 m/s from southeast
18:00–00:00
Fair.
16° 0 mm Light breeze, 3 m/s from south-southeastLight breeze, 3 m/s from south-southeast
Tuesday 03/08/2021 02:00–08:00
Rain showers.
2.2 mm Light air, 1 m/s from west-southwestLight air, 1 m/s from west-southwest
08:00–14:00
Partly cloudy.
12° 0 mm Calm, 0 m/s from northCalm, 0 m/s from north
14:00–20:00
Partly cloudy.
16° 0 mm Light air, 1 m/s from northwestLight air, 1 m/s from northwest
20:00–02:00
Partly cloudy.
15° 0 mm Light air, 1 m/s from southLight air, 1 m/s from south
Wednesday 04/08/2021 02:00–08:00
Partly cloudy.
11° 0 mm Calm, 0 m/sCalm, 0 m/s
08:00–14:00
Partly cloudy.
12° 0 mm Calm, 0 m/s from east-northeastCalm, 0 m/s from east-northeast
14:00–20:00
Cloudy.
18° 0 mm Light air, 1 m/s from south-southeastLight air, 1 m/s from south-southeast
20:00–02:00
Partly cloudy.
16° 0 mm Light air, 1 m/s from south-southeastLight air, 1 m/s from south-southeast
Thursday 05/08/2021 02:00–08:00
Cloudy.
12° 0 mm Calm, 0 m/sCalm, 0 m/s
08:00–14:00
Cloudy.
12° 0 mm Calm, 0 m/s from north-northeastCalm, 0 m/s from north-northeast
14:00–20:00
Cloudy.
18° 0 mm Light breeze, 2 m/s from south-southeastLight breeze, 2 m/s from south-southeast
20:00–02:00
Rain.
14° 3.2 mm Light breeze, 2 m/s from eastLight breeze, 2 m/s from east
Friday 06/08/2021 02:00–08:00
Rain.
13° 3.4 mm Light air, 1 m/s from east-northeastLight air, 1 m/s from east-northeast
08:00–14:00
Rain.
12° 4.0 mm Light breeze, 2 m/s from northeastLight breeze, 2 m/s from northeast
14:00–20:00
Rain.
15° 3.9 mm Gentle breeze, 4 m/s from east-northeastGentle breeze, 4 m/s from east-northeast
20:00–02:00
Heavy rain.
15° 5.8 mm Light breeze, 3 m/s from eastLight breeze, 3 m/s from east
Saturday 07/08/2021 02:00–08:00
Cloudy.
13° 0 mm Light air, 1 m/s from eastLight air, 1 m/s from east
08:00–14:00
Heavy rain.
13° 6.4 mm Light breeze, 2 m/s from eastLight breeze, 2 m/s from east
14:00–20:00
Rain.
16° 3.2 mm Light breeze, 3 m/s from southLight breeze, 3 m/s from south
20:00–02:00
Rain.
15° 3.3 mm Light breeze, 3 m/s from east-northeastLight breeze, 3 m/s from east-northeast
Sunday 08/08/2021 02:00–08:00
Rain.
13° 3.6 mm Light air, 1 m/s from eastLight air, 1 m/s from east
08:00–14:00
Heavy rain.
13° 5.4 mm Light air, 1 m/s from south-southeastLight air, 1 m/s from south-southeast
14:00–20:00
Rain.
15° 3.0 mm Light breeze, 2 m/s from northeastLight breeze, 2 m/s from northeast
20:00–02:00
Rain.
14° 3.0 mm Light breeze, 2 m/s from east-southeastLight breeze, 2 m/s from east-southeast
Monday 09/08/2021 02:00–08:00
Rain.
13° 2.9 mm Light air, 1 m/s from eastLight air, 1 m/s from east
08:00–14:00
Rain.
12° 4.0 mm Light air, 1 m/s from northeastLight air, 1 m/s from northeast
14:00–20:00
Cloudy.
17° 0 mm Light breeze, 2 m/s from west-southwestLight breeze, 2 m/s from west-southwest

The meteorologist’s text forecast

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