https://www.opm.gov/policy-data-oversight/pay-leave/furlough-guidance/
https://chcoc.gov/content/fact-sheet-pay-and-benefits-information-employees-affected-lapse-appropriations
Furloughed employees get Unemployment Insurance
UNEMPLOYMENT COMPENSATION
Furloughed employees are eligible to apply for unemployment benefits, but excepted employees working on a full-time basis are generally not eligible. Employees who wish to file should do so with the Unemployment Office for the state where the employee worked (i.e., last official duty station prior to furlough).
Please be advised, however, if Congress authorizes retroactive pay for furloughed employees, you would be required to pay back any unemployment benefits you received, in accordance with State law. For more information see https://www.opm.gov/policy-data-oversight/pay-leave/furlough-guidance/#url=Unemployment-Insurance-Resources and the U.S. Department of Labor’s Unemployment Compensation for Federal Employees website, https://oui.doleta.gov/unemploy/unemcomp.asp.
https://www.nolo.com/legal-encyclopedia/collecting-unemployment-benefits-dc.html
The maximum weekly benefit in D.C. is $425.
https://esd.wa.gov/unemployment/calculate-your-benefit
In Washington state, the maximum weekly benefit amount is $749.