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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Rain fell as high as 1700 m in some areas, soaking the upper snowpack. Expect a raincrust to form below this elevation as temperatures begin to cool the next few days, and then expect this to be covered with additional new snow. There are a few weak layers in this storm snow and, while warm temperatures are helping heal these weaknesses, whumpfing and cracking was still reported in the Kootenay Pass area on a north facing slope at 2100 m. For the most part new snow is sticking well to the Christmas crust buried 50-70 cm deep. This crust is providing a good bridging layer for the weak facet and surface hoar crystals below the crust, but this layer still remains a concern.  1, record 1, English, - bridging%20layer

Record number: 1, Textual support number: 1 OBS

In avalanche forecasting, a bridging layer [= une couche dure] is a layer of strong (hard) snow that is often quick thick. Once a layer gets to a certain thickness and hardness, it has enough strength to absorb the load that is applied from above, thus preventing this load from triggering a weakness underneath this "bridge." If ever the "bridge" fails then the result is normally a very large avalanche.  2, record 1, English, - bridging%20layer

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Il semble qu'il ait plu très haut la veille (2400 m). Très bon regel jusqu'au lac [...] puis quelques centimètres de neige fraîche sur couche portante jusqu'au pas de l'Enchastraye.  3, record 1, French, - couche%20de%20neige%20portante

Record number: 1, Textual support number: 1 OBS

En France, un manteau neigeux ou une couche de neige portante n'est pas nécessairement stable. Quand on dit, en France que «la neige porte», cela signifie qu'on ne s'y enfonce pas, notamment à pied. Ainsi une plaque de neige dure est portante, mais elle peut être instable. En France : on n'utilise pas le terme «portance». Ceci dit, s'il était utilisé, il serait relatif à la couche de surface du manteau neigeux. [source : spécialiste des risques d'avalanche, France.]  1, record 1, French, - couche%20de%20neige%20portante

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Travel conditions below treeline are reasonable due to a supportive layer near the surface of the snowpack. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.]  1, record 2, English, - supportive%20layer

Record number: 2, Textual support number: 1 OBS

supportive layer: term officially approved by the Avalanche Bulletin Terminology Standardization Committee.  2, record 2, English, - supportive%20layer

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

La formation d'une couche de neige portante à la surface du manteau neigeux rend possible les déplacements en arrière-pays au-dessous de la limite forestière. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]  1, record 2, French, - couche%20portante

Record number: 2, Textual support number: 1 OBS

couche portante : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.  2, record 2, French, - couche%20portante

Record 2,  Textual support,  Spanish