Lenticular Clouds (lens shaped clouds) can form in the crest of the mountain waves if the air is moist. Roll Clouds can also occur in the rotors below the waves if the air is moist. These clouds are a good indication of the presence of mountain waves but, if the air is dry, there may not be any cloud to see.
Statute of Limitations. The statute of limitations for taxpayers to receive refunds is three years from the date the return was filed or two years from the date any tax was paid for the tax year in question. This doesn&amp;rsquo;t preclude you from filing a return.
The taxpayer can also file a refund claim for tax that he paid with the original tax return. Generally, under section 6511, the taxpayer is required to file a claim for refund within three years from the date the original return was filed or two years from the date the tax was paid, whichever is later.