Forecast Information for the Little Rock County Warning Area. Click on the map below to get a quick zone forecast (in a pop up window) for each county in the Little Rock County Warning Area. Or, select from the list of counties below. Note: If information is not current, try this alternate page. Quick Zone Forecast For Each County.
Urine tests will also differ depending on the drugâs half-life but can detect most drugs for about two to four days. Drugs that can linger longer include marijuana and PCP. Hair tests generally reveal drug use between one week and 90 days after use.
General guidelines are available for detection times. Many drugs stay in the system from 2 to 4 days, although chronic use of marijuana can stay in the system for 3 to 4 weeks or even longer after the last use. Drugs with a long half-life, such as diazepam, may also stay in the system for a prolonged period of time. Drugs can be detected in hair samples up to six months, although urine drug screen tests are used for most workplace drug screens.