So sorry to read about this. Hopefully you have good drainage with the pot lifted up enough for the water to run through the drainage hole(s). If I remember your almond is the ornamental type (Prunus glandulosa) and does not bear nuts.
I suspect your tree may have either:
Phytophthora root rot or crown rot:
or verticillium wilt:
More on veriticillium wilt:
Here are other possible diseases of almonds on the right side of the page.
The soil-borne fungus invades trees through the root and grows up into the water-conducting pipes (xylem) in the trunk and limbs. The fungus eventually clogs the pipes and then shoots die from lack of water. Affected limb collapse quickly and shoot tips often turn dark and curl into a characteristic “shepherds hook”.
You might want to prune off a small effected branch and look for the distinctive brown in the cambium layer for verticillium wilt.
From this site with the bold as mine:
You may not want to prune to the ground, but at least you know that you can. When pruning, clean your pruners between EACH cut with alcohol or a bleach solution of 1 part bleach to 10 parts water. When finsihed pruning be sure to oil your pruners so they don't rust.
Dwarf Flowering Almond (P. glandulosa): The dwarf flowering almond is a spreading, multi-stemmed shrub that grows 4 to 5 feet tall and 3 to 4 feet wide. Its chief value is in the showy flower, which is either white or pink, single or double, and appears in midspring on old wood. It is often straggly and weak-stemmed, and subject to several insect and disease problems, especially borers. When damaged, prune to the ground in spring after flowering. It will return but will probably not flower for a year.
There is also something called 'lower limb dieback', a disease with symptoms similar to what you describe, but it starts in the lower limbs and is rare, at least in the US. Could that be the only place you see damage?
From so much rain you might also see a potassium deficiency.
Symptoms of potassium deficiency normally begin in the tops of trees but can be distributed throughout the tree when deficiencies are more severe.
Symptoms include leaves that are often pale and smaller than normal. Leaf tips and edges burn and often roll upward like a canoe or “Viking’s prow”.
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.