As many as six people are reported dead after historic flooding in Colorado.

At least 482 people remained unaccounted for in Larimer County, Colo., the county's sheriff Twitter feed announced Sunday morning. In Boulder County, there were 431 entries on the county's unaccounted-for list at 9 a.m., local time, but they were reduced to 212 entries by 3 p.m., representing 326 people, Boulder County Sheriff Joe Pelle said.

At least one person was killed in a collapsed home due to the flooding. Another life was taken on the 200 block of Linden in Boulder, Boulder Emergency Management officials reported. A third person was found dead in Fountain Creek, Colorado Springs police said. The fourth person died in Boulder, authorities told The Associated Press.

(Acapulco) - The remnants of Tropical Storm Manuel continued to deluge Mexico's southwestern Pacific shoulder with dangerous rains while Hurricane Ingrid weakened to a tropical storm after making a Monday landfall on the country's opposite coast in an unusual double onslaught that federal authorities said had caused at least 21 deaths.

The heaviest blow Sunday fell on the southern coastal state of Guerrero, where Mexico's government reported 14 confirmed deaths. State officials said people had been killed in landslides, drownings in a swollen river and a truck crash on a rain-slickened mountain highway.

Mexico's federal Civil Protection coordinator, Luis Felipe Puente, told reporters late Sunday that stormy weather from one or both of the two systems also caused three deaths in Hidalgo, three in Puebla and one in Oaxaca.

Getting hit by a tropical storm and a hurricane at the same time "is completely atypical" for Mexico, Juan Manuel Caballero, coordinator of the country's National Weather Service, said at a news conference with Puente.

Victorians are being urged to batten down because severe thunderstorms, strong winds and heavy rain are predicted to hit areas across the state.

The Bureau of Meteorology has warned that thundstorms could strike Melbourne "at any time", with residents in the state's west facing flash floods, hailstones and strong winds.

A senior forecaster at the weather bureau, Scott Williams, warned that thunderstorms could hit Melbourne "at any time" on Monday afternoon or evening.

In addition to the storm risk, Mr Williams said sporadic storms and steady rain would continue to lash large areas of the state.

Typhoon Man-yi hit central Japan Monday, with almost 300,000 households told to evacuate and fears the storm could go on to hit the crippled Fukushima nuclear plant.

The typhoon made landfall in Toyohashi, Aichi prefecture, shortly before 8am local time, packing gusts of up to 162 kilometres per hour, the Japan Meteorological Agency said.

Public broadcaster NHK said four people were missing due to landslides or floods, while at least 65 people were injured and more than 860 houses flooded.

The typhoon was moving north-northeast at a speed of 55 kilometres per hour, with the eye of the storm passing within 50 kilometres north of the capital at around noon.

Greeley - As Front Range floodwaters continued to drain into the swelling South Platte River Saturday, authorities scrambled to evacuate stranded residents from homes and deal with a broken oil and gas industry pipeline.

They also braced for the possibility of more rains in the mountains.

Weld County rescue crews used boats and helicopters to evacuate about 30 residents east of Greeley during the night Friday.

And county commissioners also said at least 140 roads have been closed, including parts of Interstate 25.

"It is no doubt an epic event. It is a once in 500 years or 1,000 years situation, Commissioner Sean Conway said.

"This is a fluid situation. It can change any moment. We are anticipating more rainfall in the mountains. That water level (in the South Platte River) could rise rapidly," Conway said.

"Put together a to-go box. Get together your papers... Please, listen to the local authorities."

Families such as the Turners - Mike, Susan and their two kids east of Greeley - stayed put in their homes despite evacuation orders as the South Platte rose slowly around them.

Mike Turner stayed awake until 3 a.m. while the other slept, watching the water engulf his horse pen and farm fields and an oil
tank and well. Saturday morning he saw the damage.

"There is some crude in the water - not a huge amount," he said.

The number of people "unaccounted for" in Larimer County has more than tripled, reports the Sheriff's Office.

Sheriff Justin Smith said Saturday evening about 350 people are presently unaccounted for, up from about 100 earlier in the day.

County officials reported Saturday morning a possible fifth flood victim. A 60-year-old woman from the Cedar Cove area is presumed dead after her house was destroyed by flood waters, the Larimer County Sheriff's Office reported.

No other information was released about that case, but the Sheriff's Office said an investigations team was created to collect and track reports of missing people. A hotline was established at 970-498-5500 to collect reports about individuals who are out of contact with family or friends. The list grew to about 100 named by 11:30 a.m.

"We do estimate that potentially there will be other loss of life," said Nick Christensen, executive officer of the Larimer County Sheriff's Office, during a Saturday afternoon press conference.

Boulder, Colorado -- As furious waters flow through flood-devastated northern Colorado, fears and tales of devastation grow.

At least four people have been killed and 218 are unaccounted for, officials say.

The nightmare is far from over as the state awaits more rainfall Saturday, threatening to send swollen rivers gushing through streets choked with debris. The rain is expected to come down heavy Sunday.

It will not be as much as the 15 inches dumped in some spots this week, but it could cause more flooding in areas where water has already receded, forecasters warned.

Emergency management officials on Saturday were trying to reach those who are missing to ensure they are not in danger. The number of missing is expected to decrease as the effort moves forward.

Residents got some relief Friday when rains subsided, giving a clear view of towns turned into abrupt lakes, homes and businesses inundated with muddy water and bridges devoured by raging creeks. Homes dangled off cliffs.

In Larimer County, there were 46 medical rescues on Friday, and teams continued looking for those unaccounted for on Saturday.

"We hope the worst has passed," John Schulz of the Larimer County Sheriff's Office said. "The water levels are receding, and it was a quiet night overall. We are expecting more rain tomorrow, but with the levels receding today we hope tomorrow is better."

Hundreds of residents were evacuated Friday, including 162 people transported by air from Jamestown because roads to the city were impassible, Boulder County EMS spokesman Ben Pennymon said.

Rescuers have retrieved the bodies of the four who died in the waters. Many more people are cut off by devastated roadways, and authorities don't know how long it will take to reach them.

'My mom's house is gone' Colorado flooding turns deadly Flood victim family: We made it

Gov. John Hickenlooper warned an extensive recovery is ahead for the affected area from the state's center into the northeast.

"This is not going to get fixed in a week," he said. "We have lost a great deal of infrastructure."

People who find themselves caught outside during electrical storms are cautioned to stay away from tall trees, and the accompanying footage provides explosive visual proof of why this is potentially life-saving advice.

A security camera in North Jackson, Tennessee, captured the violent strike Tuesday afternoon. We've provided a red arrow in the top image, pointing to what looks to be a lightning bolt running the down length of a large tree trunk (watch the footage carefully between 4 and 5 seconds).

Two tornado-like water spouts formed on Lake Michigan Thursday, posing little danger but prompting questions from curious onlookers. The waterspouts, funnel clouds that often form on the Great Lakes in the fall when cold air blows over warmer lakewater, are usually much weaker than land tornadoes.

Thursday's, which appeared off the western coast of Lake Michigan, north of Chicago, lasted about 15 minutes and caused no damage. "We did get a number of calls from people who wanted to know what was going on," said Kenosha, Wisc., Police Capt. Tom Hansche. Students in Kenosha Unified School District began emergency weather precautions but returned to class after about 20 minutes.

Federal officials and the head of an air traffic control group says a worker was hurt when lightning struck BWI Airport, shutting down flight operations.

The Federal Aviation Administration said lightning struck the air traffic control tower at 2:21 p.m. Thursday. The FAA suspended arrivals and departures until about 4:45 p.m., according to a BWI spokesman.

John Dunkerly, president of the National Air Traffic Controllers Association, said that he had just left the tower when the lightning strike, which he said hit a runway, occurred. He said a traffic management coordinator who was turning on equipment in the tower was shocked when the electricity traveled to the tower.

Dunkerly says the worker was taken to a hospital. An FAA official said the worker did not appear to be seriously injured.