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Current natural hazards situation in Switzerland

Updated on: 03.12.2021, 13:58

Teaser

Danger level 1 (No or minor danger)
Danger level 2 (Moderate danger)
Danger level 3 (Considerable danger)
Danger level 4 (High danger)
Danger level 5 (Very high danger)
No danger level
Danger level 1 (No or minor danger)

Explanation of the danger level 1:

  • Avalanches: no danger
  • Earthquakes: may be perceptible
  • Floods: transport disruption and damage are not normally to be expected.
  • Forest fires: small fires cannot be entirely ruled out
  • Meteorological phenomena: no (particular) danger, no warnings in place
Danger level 2 (Moderate danger)

Explanation of the danger level 2:

  • Avalanches: very little danger
  • Earthquakes: felt across a wide area, no likelihood of damage to buildings
  • Floods: rivers are unlikely to burst their banks and floods are unlikely but not impossible
  • Forest fires: local fires can start spontaneously
  • Meteorological phenomena  that are normal for the respective season
Danger level 3 (Considerable danger)

Explanation of the danger level 3:

  • Avalanches: exposed objects (mostly sections of transportation routes) can be endangered
  • Earthquakes: felt across a wide area, likelihood of minor damage to buildings
  • Floods: rivers may burst their banks locally in exposed places and flooding may occur.
  • Forest fires: surface fires are likely
  • Meteorological phenomena of an intensity slightly superior to the normal
Danger level 4 (High danger)

Explanation of the danger level 4:

  • Avalanches: exposed objects (mostly sections of transportation routes, but in isolated cases also buildings) can be endangered
  • Earthquakes: felt strongly, likelihood of damage to buildings
  • Floods: rivers may increasingly burst their banks and flooding may occur
  • Forest fires: surface fires are very likely
  • Meteorological phenomena of unusual intensity
Danger level 5 (Very high danger)

Explanation of the danger level 5:

  • Avalanches: transportation routes and settlements can be seriously endangered
  • Earthquakes: felt strongly, high likelihood of widespread and severe damage to buildings
  • Floods: rivers may burst their banks and flooding may occur in many places
  • Forest fires: fires can start at any time
  • Meteorological phenomena of very high intensity

Obey in any event the orders issued by your local authorities and be prepared for exceptional measures.

No danger level

No evaluation

Current warnings issued for Switzerland

  (17 Messages) hide
  • Snow: Considerable danger, level 3

    Validity: 04.12.2021, 00:00 - 05.12.2021, 00:00
    - Warning valid above 1600 m a.s.l.
    - Expected amounts: above 1800 m a.s.l. 40 - 70 cm, above 1200 m a.s.l. 10 - 40 cm
    - Snowfall limit: 800 - 1800 m
    - Peak phase of the event: Sat 06 - Sat 18
    - Intensifying conditions: accompanied by winds at gale force
    Affected regions
    Adelboden-Kandersteg, Frutigen-Kiental, Grindelwald, Innertkirchen-Guttannen, Lauterbrunnen-Wilderswil, Meiringen-Gadmertal, Niedersimmental, Obersimmental, Saanen-Gsteig, St. Stephan-Lenk
    Affected regions
    Adelboden-Kandersteg, Frutigen-Kiental, Grindelwald, Innertkirchen-Guttannen, Lauterbrunnen-Wilderswil, Meiringen-Gadmertal, Niedersimmental, Obersimmental, Saanen-Gsteig, St. Stephan-Lenk
    0:Snow:3:MCH:110,111,112,113,121,122,129,130,137,138:
  • Snow: Considerable danger, level 3

    Validity: 04.12.2021, 00:00 - 05.12.2021, 12:00
    - Warning valid for all altitudes.
    - Expected amounts: above 300 m a.s.l. 5 - 15 cm, above 1200 m a.s.l. 20 - 40 cm, above 1600 m a.s.l. 60 - 80 cm
    - Snowfall limit: 300 - 1600 m (rising)
    - Peak phase of the event: Sat 03 - Sat 18
    - Intensifying conditions: accompanied by winds at gale force
    Affected regions
    Aigle - Leysin, Aletschgebiet, Bex - Villars, Conthey - Fully, Haut val de Bagnes, Jogne - Haute-Gruyère, Lötschental - Naters, Martigny - Verbier, Monthey - Val d'Illiez, Pays-d'Enhaut, Sion - Crans-Montana, Val d'Entremont - Val Ferret, Vallée du Trient, Vouvry
    Affected regions
    Aigle - Leysin, Aletschgebiet, Bex - Villars, Conthey - Fully, Haut val de Bagnes, Jogne - Haute-Gruyère, Lötschental - Naters, Martigny - Verbier, Monthey - Val d'Illiez, Pays-d'Enhaut, Sion - Crans-Montana, Val d'Entremont - Val Ferret, Vallée du Trient, Vouvry
    1:Snow:3:MCH:228,229,230,231,232,233,234,235,236,237,238,239,242,246:
  • Avalanches: Considerable danger, level 3

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    New snow
    In all aspects above approximately 1800m.
    Affected regions
    Adelboden, Aigle-Leysin, Alpstein – Alvier, Bex-Villars, Bisistal, Blüemlisalp, Brienz-Interlaken, Central Glarus, Engelberg, Engstligen, Flumserberg, Gadmertal, Gersau, Glaubenberg, Grimsel Pass, Grindelwald, Gstaad, Guttannen, Hasliberg – Rosenlaui, Hohgant, Iffigen, Jaun, Jungfrau – Schilthorn, Kandersteg, Lauterbrunnen, Lenk, Liechtenstein, Maderanertal, Meiental, Melchtal, Monthey-Val d'Illiez, Niedersimmental, Northern Glarus, Obersimmental, Pays d'Enhaut, Pilatus, Sarganserland, Schreckhorn, Schächental, Southern Glarus-Grosstal, Southern Glarus-Sernftal, Stoos, Uri Rotstock, Vouvry, Wildhorn, Ybrig
    Affected regions
    Adelboden, Aigle-Leysin, Alpstein – Alvier, Bex-Villars, Bisistal, Blüemlisalp, Brienz-Interlaken, Central Glarus, Engelberg, Engstligen, Flumserberg, Gadmertal, Gersau, Glaubenberg, Grimsel Pass, Grindelwald, Gstaad, Guttannen, Hasliberg – Rosenlaui, Hohgant, Iffigen, Jaun, Jungfrau – Schilthorn, Kandersteg, Lauterbrunnen, Lenk, Liechtenstein, Maderanertal, Meiental, Melchtal, Monthey-Val d'Illiez, Niedersimmental, Northern Glarus, Obersimmental, Pays d'Enhaut, Pilatus, Sarganserland, Schreckhorn, Schächental, Southern Glarus-Grosstal, Southern Glarus-Sernftal, Stoos, Uri Rotstock, Vouvry, Wildhorn, Ybrig
    2:Avalanches:3:SLF:1221,1243,2134,2211,3224,1121,1242,2111,2133,1241,2132,1228,1227,1226,1225,1247,1224,1246,1223,1245,3222,1222,1244,2212,3223,1232,2123,2222,3114,1231,2122,2221,2121,1114,1213,1312,3111,1113,1234,1311,3112,1112,1233,2124,3113,3311:
  • Avalanches: Considerable danger, level 3

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Old snow
    In particular in west to north to east facing aspects above approximately 2400m.
    Affected regions
    Avers, Bernina region, Bivio, Corvatsch, Haut Val de Bagnes, Leuk, Martigny-Verbier, Northern Obergoms, Obersaxen – Safien Valley, Reckingen, Rheinwald, Riederalp, Savognin, Schams, Southern Obergoms, Southern Tujetsch, Southern Urseren, St Moritz, Val Chamuera, Val dal Spöl, Val Müstair, Val S-charl, Val Sumvitg, Zervreila, Zuoz
    Affected regions
    Avers, Bernina region, Bivio, Corvatsch, Haut Val de Bagnes, Leuk, Martigny-Verbier, Northern Obergoms, Obersaxen – Safien Valley, Reckingen, Rheinwald, Riederalp, Savognin, Schams, Southern Obergoms, Southern Tujetsch, Southern Urseren, St Moritz, Val Chamuera, Val dal Spöl, Val Müstair, Val S-charl, Val Sumvitg, Zervreila, Zuoz
    3:Avalanches:3:SLF:4115,4214,4116,4215,5223,5222,7125,7126,5216,5215,7112,7113,4241,5232,7231,7111,4243,5212,5234,4244,5233,2224,5214,7114,7115:
  • Avalanches: Considerable danger, level 3

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Old snow
    In particular in southwest to north to southeast facing aspects above approximately 2000m.
    Affected regions
    Albulatal, Calanda, Conthey-Fully, Davos, Domleschg – Lenzerheide, Eastern Silvretta, Emosson, Flims, Génépi, Konkordia region, Leukerbad - Lötschental, Montana, Northern Prättigau, Northern Tujetsch, Northern Urseren, Samnaun, Schanfigg, Southern Prättigau, Sur Tasna, Val d'Entremont-Val Ferret, Val Suot, Western Silvretta
    Affected regions
    Albulatal, Calanda, Conthey-Fully, Davos, Domleschg – Lenzerheide, Eastern Silvretta, Emosson, Flims, Génépi, Konkordia region, Leukerbad - Lötschental, Montana, Northern Prättigau, Northern Tujetsch, Northern Urseren, Samnaun, Schanfigg, Southern Prättigau, Sur Tasna, Val d'Entremont-Val Ferret, Val Suot, Western Silvretta
    4:Avalanches:3:SLF:7123,7124,5111,5122,5221,7121,4121,5121,5231,7122,4111,5113,5124,4112,4211,5112,5123,5211,4113,2223,4114,4213:
  • Wind: Moderate danger, level 2

    Validity: 04.12.2021, 03:00 - 05.12.2021, 00:00
    - Highest wind gusts in exposed locations: above 600 m 70-90 km/h, above 1000 m 90-110 km/h, above 1800 m 100-130 km/h
    - Main wind direction southwest to west
    Affected regions
    Aarau-Lenzburg, Adelboden-Kandersteg, Amriswil, Appenzell, Basel, Bern-Mühleberg, Brienz-Interlaken, Burgdorf-Limpachtal, Effretikon, Einsiedeln-Wägital, Emmen-Hochdorf, Entlebuch, Erstfeld-Engelberg, Flüelen-Unterschächen, Frick-Leibstadt, Frutigen-Kiental, Fürstenland, Gersau-Engelbergertal, Glarus Nord-Mitte, Goldau-Ägeri, Grindelwald, Hulftegg-Untertoggenburg, Huttwil-Willisau, Innertkirchen-Guttannen, Kerenzerberg-Seeztal, Langenthal, Langnau-Eggiwil, Laufental, Lauterbrunnen-Wilderswil, Limmattal, Linthebene-Gaster, Luzern-Alpnach, Lyss-Grenchen, Marthalen-Stammheim, Meiringen-Gadmertal, Muotathal, Niedersimmental, Oberes Baselbiet, Obersimmental, Obertoggenburg, Olten-Gösgen, Pfungen-Hettlingen, Rheinfelden, Rheintal, Saanen-Gsteig, Sarnen-Lungern, Schaffhausen, Schangnau-Sigriswil, Solothurn-Rothrist, St. Stephan-Lenk, St.Gallen-Rorschach, Steckborn-Müllheim, Sumiswald-Worb, Thal, Thalwil-Wetzikon, Thun-Belp, Turbenthal-Sirnach, Wahlern-Plaffeien, Werdenberg, Wohlen-Albis, Wädenswil-Rüti, Zofingen-Triengen, Zug-Knonau, Zurzach-Bülach
    Affected regions
    Aarau-Lenzburg, Adelboden-Kandersteg, Amriswil, Appenzell, Basel, Bern-Mühleberg, Brienz-Interlaken, Burgdorf-Limpachtal, Effretikon, Einsiedeln-Wägital, Emmen-Hochdorf, Entlebuch, Erstfeld-Engelberg, Flüelen-Unterschächen, Frick-Leibstadt, Frutigen-Kiental, Fürstenland, Gersau-Engelbergertal, Glarus Nord-Mitte, Goldau-Ägeri, Grindelwald, Hulftegg-Untertoggenburg, Huttwil-Willisau, Innertkirchen-Guttannen, Kerenzerberg-Seeztal, Langenthal, Langnau-Eggiwil, Laufental, Lauterbrunnen-Wilderswil, Limmattal, Linthebene-Gaster, Luzern-Alpnach, Lyss-Grenchen, Marthalen-Stammheim, Meiringen-Gadmertal, Muotathal, Niedersimmental, Oberes Baselbiet, Obersimmental, Obertoggenburg, Olten-Gösgen, Pfungen-Hettlingen, Rheinfelden, Rheintal, Saanen-Gsteig, Sarnen-Lungern, Schaffhausen, Schangnau-Sigriswil, Solothurn-Rothrist, St. Stephan-Lenk, St.Gallen-Rorschach, Steckborn-Müllheim, Sumiswald-Worb, Thal, Thalwil-Wetzikon, Thun-Belp, Turbenthal-Sirnach, Wahlern-Plaffeien, Werdenberg, Wohlen-Albis, Wädenswil-Rüti, Zofingen-Triengen, Zug-Knonau, Zurzach-Bülach
    5:Wind:2:MCH:101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,150,151,152,153,154,155,159,160,161,162,163,167,168,169,170,175,176:
  • Snow: Moderate danger, level 2

    Validity: 04.12.2021, 00:00 - 05.12.2021, 00:00
    - Warning valid above 800 m a.s.l.
    - Expected amounts: above 800 m a.s.l. bis 10 cm, above 1200 m a.s.l. 10 - 30 cm, above 1800 m a.s.l. 30 - 50 cm
    - Snowfall limit: 800 - 1800 m
    Affected regions
    Appenzell, Brienz-Interlaken, Brigels, Erstfeld-Engelberg, Flims-Laax, Flüelen-Unterschächen, Gersau-Engelbergertal, Glarus Nord-Mitte, Glarus Süd-Grosstal, Glarus Süd-Sernftal, Kerenzerberg-Seeztal, Landquart-Chur, Langnau-Eggiwil, Liechtenstein, Maderanertal, Muotathal, nördliches Tavetsch, Obertoggenburg, Sarganserland, Sarnen-Lungern, Schangnau-Sigriswil, Schiers, Urner Oberland, Urserntal, Wahlern-Plaffeien, Werdenberg
    Affected regions
    Appenzell, Brienz-Interlaken, Brigels, Erstfeld-Engelberg, Flims-Laax, Flüelen-Unterschächen, Gersau-Engelbergertal, Glarus Nord-Mitte, Glarus Süd-Grosstal, Glarus Süd-Sernftal, Kerenzerberg-Seeztal, Landquart-Chur, Langnau-Eggiwil, Liechtenstein, Maderanertal, Muotathal, nördliches Tavetsch, Obertoggenburg, Sarganserland, Sarnen-Lungern, Schangnau-Sigriswil, Schiers, Urner Oberland, Urserntal, Wahlern-Plaffeien, Werdenberg
    6:Snow:2:MCH:108,119,120,128,136,146,147,148,149,154,155,156,157,163,164,165,168,169,170,171,172,176,177,178,179,182:
  • Snow: Moderate danger, level 2

    Validity: 04.12.2021, 00:00 - 05.12.2021, 00:00
    - Warning valid for all altitudes.
    - Expected amounts: above 300 m a.s.l. 8 - 15 cm, above 1200 m a.s.l. 10 - 20 cm, above 1600 m a.s.l. 20 - 40 cm
    - Snowfall limit: 300 - 1600 m (rising)
    Affected regions
    Arolla, Binntal, Brig - nördliches Simplongebiet, Oberes Mattertal, Oberes Saastal, Obergoms, Südliches Simplongebiet, Turtmanntal, Val d'Anniviers, Val d'Hérens, Vispertal - Nanztal
    Affected regions
    Arolla, Binntal, Brig - nördliches Simplongebiet, Oberes Mattertal, Oberes Saastal, Obergoms, Südliches Simplongebiet, Turtmanntal, Val d'Anniviers, Val d'Hérens, Vispertal - Nanztal
    7:Snow:2:MCH:240,241,243,244,245,247,248,249,250,251,252:
  • Snow: Moderate danger, level 2

    Validity: 04.12.2021, 00:00 - 05.12.2021, 00:00
    - Warning valid above 600 m a.s.l.
    - Expected amounts: above 600 m a.s.l. 5 - 15 cm
    - Snowfall limit: 400 m
    Affected regions
    Alta Valmaggia, Alto Moesano, Blenio, Leventina
    Affected regions
    Alta Valmaggia, Alto Moesano, Blenio, Leventina
    8:Snow:2:MCH:301,302,303,304:
  • Wind: Moderate danger, level 2

    Validity: 04.12.2021, 00:00 - 05.12.2021, 00:00
    - Highest wind gusts in exposed locations: above 600 m 70 - 90 km/h, above 1000 m 90 - 110 km/h, above 1800 m 100 - 130 km(h
    - Main wind direction southwest to west
    Affected regions
    Ajoie, Basse-Gruyère, Broye, Estavayer - Cudrefin, Fribourg, Glâne, Gros-de-Vaud, Lausanne - Lavaux, Morges - Cossonay, Murten - Kerzers, Nidau - Ins, Nyon - Terre Sainte, Oron - Haute-Broye, Plaine de l'Orbe, Préalpes vaudoises
    Affected regions
    Ajoie, Basse-Gruyère, Broye, Estavayer - Cudrefin, Fribourg, Glâne, Gros-de-Vaud, Lausanne - Lavaux, Morges - Cossonay, Murten - Kerzers, Nidau - Ins, Nyon - Terre Sainte, Oron - Haute-Broye, Plaine de l'Orbe, Préalpes vaudoises
    9:Wind:2:MCH:201,209,212,213,214,215,217,218,219,220,223,224,225,226,227:
  • Snow: Moderate danger, level 2

    Validity: 03.12.2021, 21:00 - 04.12.2021, 03:00
    - Warning valid for all altitudes.
    - Expected amounts: above 300 m a.s.l. 3 - 8 cm, above 800 m a.s.l. 8 - 15 cm
    - Snowfall limit: 300 - 1600 m (rising)
    Affected regions
    Bienne - Neuchâtel, Broye, Estavayer - Cudrefin, Fribourg, Genève, Glâne, Gros-de-Vaud, La Chaux-de-Fonds - Le Locle, Lausanne - Lavaux, Morges - Cossonay, Murten - Kerzers, Nidau - Ins, Nyon - Terre Sainte, Oron - Haute-Broye, Plaine de l'Orbe, Saint-Cergue, Val de Ruz - Colombier, Val de Travers, Vallon de Saint-Imier, Vallée de Joux, Yverdon - Bevaix
    Affected regions
    Bienne - Neuchâtel, Broye, Estavayer - Cudrefin, Fribourg, Genève, Glâne, Gros-de-Vaud, La Chaux-de-Fonds - Le Locle, Lausanne - Lavaux, Morges - Cossonay, Murten - Kerzers, Nidau - Ins, Nyon - Terre Sainte, Oron - Haute-Broye, Plaine de l'Orbe, Saint-Cergue, Val de Ruz - Colombier, Val de Travers, Vallon de Saint-Imier, Vallée de Joux, Yverdon - Bevaix
    10:Snow:2:MCH:205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,221,222,223,224,225,226:
  • Snow: Moderate danger, level 2

    Validity: 03.12.2021, 21:00 - 05.12.2021, 12:00
    - Warning valid for all altitudes.
    - Expected amounts: above 300 m a.s.l. 3 - 8 cm, above 800 m a.s.l. 8 - 15 cm, above 1200 m a.s.l. 15 - 30 cm
    - Snowfall limit: 300 - 1600 m (rising)
    Affected regions
    Basse-Gruyère, Préalpes vaudoises
    Affected regions
    Basse-Gruyère, Préalpes vaudoises
    11:Snow:2:MCH:220,227:
  • Avalanches: Moderate danger, level 2

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Wind slabs
    In particular in northwest to north to southeast facing aspects above approximately 1400m.
    Affected regions
    Appenzell Alps, Eastern Bernese Prealps, Gruyère, Rothenthurm, Saint-Cergue, Schwarzenberg, Toggenburg, Vallée de Joux, Vaud Prealps, Western Bernese Prealps, Yverdon - Bevaix
    Affected regions
    Appenzell Alps, Eastern Bernese Prealps, Gruyère, Rothenthurm, Saint-Cergue, Schwarzenberg, Toggenburg, Vallée de Joux, Vaud Prealps, Western Bernese Prealps, Yverdon - Bevaix
    12:Avalanches:2:SLF:1111,1122,2112,2131,8113,8111,8112,3221,1212,3211,1211:
  • Avalanches: Moderate danger, level 2

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Old snow
    In particular in west to north to southeast facing aspects above approximately 2200m.
    Affected regions
    Arolla, Binntal, Lower Valleys of Visp, Mattmark, Monte Rosa, Mountet, Northern Simplon region, Saas Fee, Southern Simplon region, Turtmanntal, Val d'Anniviers, Val d'Hérens, Zermatt
    Affected regions
    Arolla, Binntal, Lower Valleys of Visp, Mattmark, Monte Rosa, Mountet, Northern Simplon region, Saas Fee, Southern Simplon region, Turtmanntal, Val d'Anniviers, Val d'Hérens, Zermatt
    13:Avalanches:2:SLF:4225,4231,4242,4122,4221,4232,4123,4222,4124,4212,4223,4125,4224:
  • Avalanches: Moderate danger, level 2

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Old snow, wind slabs
    In all aspects above approximately 2000m.
    Affected regions
    alto Moesano, basso Moesano, Lower Val Poschiavo, Lower Valle Leventina, Lower Valle Maggia, Lugano area, Mendrisio area, Riviera, Upper Val Poschiavo, Upper Valle Leventina, Upper Valle Maggia, Val Bedretto, Val Blenio, Val Bregaglia
    Affected regions
    alto Moesano, basso Moesano, Lower Val Poschiavo, Lower Valle Leventina, Lower Valle Maggia, Lugano area, Mendrisio area, Riviera, Upper Val Poschiavo, Upper Valle Leventina, Upper Valle Maggia, Val Bedretto, Val Blenio, Val Bregaglia
    14:Avalanches:2:SLF:6121,6132,7211,7222,6131,6112,6211,6111,6122,7221,6114,6113,6212,6115:
  • Forest fire: Moderate danger, level 2

    Effective from: 30.11.2021
    Measures such as fire bans are imposed by the cantons. These measures may vary from canton to canton.
    Affected regions
    Anniviers (VS), Anzère - Montana - Leukerbad (VS), Binn - Simplon north (VS), Chablais (VS), Fully - Chamoson (VS), Martigny - Trient (VS), Riddes - Saxon (VS), Sion - Sierre - Leuk (VS), Val d'Entremont (VS), Val d'Hérens - Val d'Hérémence (VS), Val de Bagnes (VS), Vernayaz - St-Maurice (VS), Visp - Brig - Aletsch (VS), Zermatt - Saastal (VS), Äusseres Nikolaital - Turmanntal (VS)
    Affected regions
    Anniviers (VS), Anzère - Montana - Leukerbad (VS), Binn - Simplon north (VS), Chablais (VS), Fully - Chamoson (VS), Martigny - Trient (VS), Riddes - Saxon (VS), Sion - Sierre - Leuk (VS), Val d'Entremont (VS), Val d'Hérens - Val d'Hérémence (VS), Val de Bagnes (VS), Vernayaz - St-Maurice (VS), Visp - Brig - Aletsch (VS), Zermatt - Saastal (VS), Äusseres Nikolaital - Turmanntal (VS)
    15:Forestfire:2:ForestFire:2407,2409,2402,2418,2411,2415,2412,2408,2414,2410,2413,2416,2401,2406,2403:
  • Avalanches: No or minor danger, level 1

    Validity: 02.12.2021, 17:00 - 03.12.2021, 18:00
    Wind slabs
    Affected regions
    Bienne - Neuchâtel, Delémont - Bellelay, Franches-Montagnes, La Chaux-de-Fonds - Le Locle, Moutier - Tavannes, Thal, Val de Ruz - Colombier, Val de Travers, Vallon de Saint-Imier
    Affected regions
    Bienne - Neuchâtel, Delémont - Bellelay, Franches-Montagnes, La Chaux-de-Fonds - Le Locle, Moutier - Tavannes, Thal, Val de Ruz - Colombier, Val de Travers, Vallon de Saint-Imier
    16:Avalanches:1:SLF:8212,8114,8213,8224,8221,8211,8222,8214,8215:
This message is currently only available in German .

Naturgefahrenbulletin des Bundes

Ausgabedatum: Freitag, 3. Dezember 2021 11:15 Uhr
Nächste Information: Samstag, 4. Dezember 2021 11:00 Uhr

Kräftiger Schneefall, Regen und stürmischer Wind 

Eine Warmfront zieht im Verlauf des Samstags von West nach Ost über die Alpen hinweg, dicht gefolgt von einer Kaltfront. Dabei ist insbesondere in den westlichen Alpen mit ergiebigen Niederschlägen zu rechnen, wobei die Schneefallgrenze am Samstag vorübergehend markant ansteigt. In erhöhten Lagen werden die Niederschläge von stürmischem Wind begleitet.  
Prozess Stufe Betroffene Gebiete von bis
Schnee 3 Chablais, Conthey - Fully, Jogne - Haute-Gruyère, Martigny - Verbier, Pays-d'Enhaut, Val d'Entremont - Val Ferret, westlicher Alpennordhang 04.12.21, 00 Uhr 05.12.21, 12 Uhr
Schnee 3 Berner Oberland 04.12.21, 00 Uhr 05.12.21, 00 Uhr

Wetter  (Stand: 03.12.2021, 11:15 Uhr)

Prognose

Am westlichen und zentralen Alpennordhang von den Savoyer und Unterwalliser über die Waadtländer ist oberhalb von rund 1800 Metern im gewarnten Zeitraum mit 60 bis 80 cm, in den Freiburger Alpen und Berner Alpen 40 bis 60 cm Neuschnee zu rechnen. Der stürmische Westwind sorgt dabei für erhebliche Verfrachtungen. In den angrenzenden inneralpinen Gebieten sowie am zentralen und östlichen Alpennordhang sind die erwarteten Neuschneemengen mit 20 bis 40, in den Hochalpen lokal 50 cm etwas geringer. Hier ist eine Warnung der Stufe 2 aktiv.

Die Schneefallgrenze liegt bei Niederschlagseinsatz in der Nacht auf Samstag zunächst bei 800 bis 1200 Metern und steigt tagsüber vorübergehend auf 1500 bis 1800 Meter. Für die tieferen Lagen der westlichen Landesteile sind Warnungen der Stufe 2  für Dauerregen mit Gesamtsummen von 20 bis lokal 50 mm aktiv. In der Nacht auf Sonntag sinkt die Schneefallgrenze wieder sukzessive bis in die Niederungen, wobei die Niederschläge gleichzeitig nachlassen.

Am Samstag weht in Berglagen oberhalb von rund 1000 Metern ein stürmischer West- bis Südwestwind, der tagsüber Böenspitzen von 90 bis 110 km/h, an exponierten Gipfel- oder Kammlagen bis 130 km /h erreicht. Für diese Gebiete sind entsprechende Warnungen der Stufe 2 aktiv. In den Niederungen sind oberhalb von 600 Metern Böenspitzen von 60 bis 90 km/h zu erwarten.