How to create a new storage account and container using Power Shell?

$storageName = "st" + (Get-Random)

New-AzureRmStorageAccount -ResourceGroupName "myResourceGroup" -AccountName $storageName -Location "West US" -SkuName "Standard_LRS" -Kind Storage

$accountKey = (Get-AzureRmStorageAccountKey -ResourceGroupName myResourceGroup -Name $storageName).Value[0]

$context = New-AzureStorageContext -StorageAccountName $storageName -StorageAccountKey $accountKey

New-AzureStorageContainer -Name "templates" -Context $context -Permission Container