OKLAHOMA CITY -- Nonstop heavy rains, thunderstorms and flooding continued Monday across Oklahoma, and the First Alert Storm Team predicted more rain and possible flooding Monday night and Tuesday morning.

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Severe Weather Team Coverage - June 21, 2004

The National Weather Service issued a flash flood watch for all of Oklahoma except for the extreme north-central part of the state. Forecasters were watching thunderstorms near the Oklahoma-Colorado border, which are expected to move into the state overnight.

According to the First Alert Storm Team's Frank Johnson, the storms are also expected to bring a cold front.

Earlier Monday, the Oklahoma Highway Patrol announced that the inside lanes of both northbound and southbound Interstate 35 south of Norman were closed by flooding at mile marker 104.

However, troopers said the closed section of I-35, which is located just south of the Canadian River, were re-opened Monday afternoon.

Meanwhile, OG&E spokesman Brian Alford told Eyewitness News 5 that about 2,000 metro-area homes were without power because of the storms.

Alford said the cause of the outages is mostly due to lightning. Most of the homes without power Monday afternoon are in eastern Oklahoma County.

In northwestern Oklahoma, officials in the town of Waynoka are bracing for the inevitable overflow of the Cimarron River.

National Weather Service forecasters said the river could reach its crest of 9 feet at any time Monday or Tuesday. City officials in Waynoka said gas wells, farmland and rural roads would all likely be affected by flooding.