* WHAT...Small stream and localized urban flooding caused by excessive rainfall is possible. * WHERE...Seward. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...Excessive rainfall may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Storm drains and ditches may become clogged with debris. Flooding may occur in poor drainage areas. * ADDITIONAL DETAILS... - A strong frontal system with an atmospheric river of moisture will move over the southern Kenai Peninsula Thursday through Friday. Although light rain will begin Thursday morning, a period of heavy rain is expected late Thursday evening through Friday morning before the rain slowly tapers off Friday afternoon. Rainfall rates of up to a quarter of an inch per hour are possible between 10 PM Thursday and 10 AM Friday, with a storm total between 3 and 4 inches of rain likely with event. Prolonged heavy rain may lead to areas of flooding along smaller streams and creeks, in low-lying and poor drainage areas, and ponding of water on roadways. - Http://www.weather.gov/safety/flood Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Flooding may occur in poor drainage areas. Storm drains should be kept clear of debris as much as possible.