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.
1 When to file. 2  To claim a refund, you generally must file Form 1040X within three years from the date you filed your original tax return or within two years from the date you paid the tax, whichever is later. 3  Processing time.4  Normal processing time for amended returns is 8 to 12 weeks.ere are 10 tips from the Internal Revenue Service about amending your federal tax return: 1  When to amend a return. 2  You should file an amended return if you need to correct your filing status, number of dependents, total income, tax deductions or tax credits.