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TROPICAL CYCLONE ADVICE NUMBER 11 Issued by the Bureau of Meteorology, Brisbane Issued at 5:01am EST on Wednesday the 2nd of February 2011 A Cyclone WARNING is current for island and coastal areas from Cape Melville and Sarina, extending inland to Croydon and Hughenden. A Cyclone WATCH is current for coastal areas from the remaining tropical interior east of Camooweal and north of Winton. At 4:00 am EST Severe Tropical Cyclone Yasi, Category 5 was estimated to be 650 kilometres east northeast of Cairns and 650 kilometres northeast of Townsville moving west southwest at 30 kilometres per hour. SEVERE TC YASI IS A LARGE AND VERY POWERFUL TROPICAL CYCLONE AND POSES AN EXTREMELY SERIOUS THREAT TO LIFE AND PROPERTY WITHIN THE WARNING AREA, ESPECIALLY BETWEEN PORT DOUGLAS AND TOWNSVILLE. THIS IMPACT IS LIKELY TO BE MORE LIFE THREATENING THAN ANY EXPERIENCED DURING RECENT GENERATIONS. The Cyclone has now reached CATEGORY 5 and will continue to move in a west-southwesterly direction during today. Coastal residents within the warning, and particularly between Port Douglas and Townsville are specifically warned of an EXTREMELY DANGEROUS sea level rise [i.e. storm tide] as the cyclone approaches and crosses the coast. The sea is likely to steadily rise up to a level which will be VERY DANGEROUSLY above the normal tide, with EXTREMELY DAMAGING WAVES, strong currents and flooding of low-lying areas extending some way inland. People living in areas likely to be affected by this flooding should take measures to protect their property as much as possible, and be prepared to follow instructions regarding evacuation of the area if advised to do so by authorities. DAMAGING WINDS with gusts to 90 km/hr are expected to develop on coastal islands later this morning, then extend onto the coast during the day, and further inland across the northern tropical interior overnight. Between Cooktown and Ingham these winds will become DESTRUCTIVE with gusts in excess of 125km/hr during the afternoon and VERY DESTRUCTIVE with gusts above 280 km/hr between Port Douglas and Cardwell during the evening as the cyclone approaches. These VERY DESTRUCTIVE winds can also occur on the seaward side of hills to the north of the cyclone and are also forecast to reach the Atherton Tablelands. FLOODING RAINS will develop from Cooktown to Sarina during the afternoon and then extend inland overnight. People between Cape Melville and Sarina, extending inland to Croydon and Hughenden should complete preparations quickly and be prepared to shelter in a safe place. - Boats and outside property should be secured. - For cyclone preparedness and safety advice, visit Queensland's Disaster Management Services website [www.disaster.qld.gov.au] - For emergency assistance call the Queensland State Emergency Service [SES] on 132 500 [for assistance with storm damage, rising flood water, fallen trees on buildings or roof damage]. People about the remaining tropical interior east of Camooweal and north of Winton should consider what action they will need to take if the cyclone threat increases. - Information is available from your local government - For cyclone preparedness and safety advice, visit Queensland's Disaster Management Services website [www.disaster.qld.gov.au] - For emergency assistance call the Queensland State Emergency Service [SES] on 132 500 [for assistance with storm damage, rising flood water, fallen trees on buildings or roof damage]. Details of Severe Tropical Cyclone Yasi at 4:00 am EST: .Centre located near...... 15.7 degrees South 151.7 degrees East .Location accuracy........ within 20 kilometres .Recent movement.......... towards the west southwest at 30 kilometres per hour .Wind gusts near centre... 295 kilometres per hour .Severity category........ 5 .Central pressure......... 924 hectoPascals
IF you're struggling to grasp the magnitude of Tropical Cyclone Yasi, consider this: it is so large it would almost cover the United States, most of Asia and large parts of Europe.
Temperatures are on the upswing across the eastern third of the United States, but a very stormy and cold pattern is taking hold over the West Coast. A winter storm warning is in effect for Seattle, where three to six inches of snow is expected through Thursday (including potential snowfall rates of one inch per hour north of the city into this afternoon). The same storm will dive southward, impacting much of California, Thursday into Saturday (from north to south). In the San Francisco Bay Area, the potential for some very rare snowflakes is on the table.
The San Francisco National Weather Service Forecast office writes:
ON FRIDAY INTO SATURDAY A RECORD COLD AIRMASS IS FORECAST TO DROP OVER THE REGION WITH SHOWERS AND POSSIBLE VERY LOW ELEVATION SNOW SHOWERS BETWEEN 500 FEET AND SEA LEVEL.
Measurable snow is very rare in San Francisco, and has only occurred in the area 11 times since 1856 according to meteorologist Jan Null of Golden Gate Weather Services, who has compiled a record. The last measurable snow to occur in San Francisco occurred in 1976 when one inch fell.
Residents in the Northern Oklahoma town of Nowata experienced a nearly 110-degree shift in the weather this week after a cold front brought temperatures down to a record-setting -31 degrees.
Today, it's a balmy 72 degrees in Nowata. Yesterday, it reached 79 degrees.
The Mississippi River continues to rise, so much so that its tributaries are starting to flow backwards. At Tom Lee Park, preps for Memphis in May continue knowing that the worst is still yet to come.
It's a site not often seen; the Wolf River and Nonconnah Creek are flowing backwards. The swelling river cannot take on much more water.
Gene Rench with the National Weather Service said all eyes are on the Mississippi. The tributaries flowing backwards are a big problem for the adjacent communities.
"Right now the Mississippi river is in the process of going through what we call an epic flood, meaning it's more than historic, it's more than a 100 year flood, it's more like a 500 year flood," he said. "We could flood many homes, businesses, close down factories, people could drown."
Wichita, Kan., residents are still reeling from a bizarre weather system that spiked temperatures 20 degrees in a matter of minutes in the early hours of Thursday morning.
KSN Channel 3's meteorologist JD Rudd explained the causes of the rare nighttime temperature spike, known as a "heat burst." First, winds gusted up to 69 miles per hour at around 11 p.m. on Wednesday, when temperatures were still in the 80s. At 12:22 a.m., temperatures were at 85 degrees in the region. Less than 20 minutes later, the temperature spiked to 102 degrees, and winds continued to gust at about 50 miles per hour.
By 3:00 a.m., the temperatures had again fallen and the winds stopped.
Heat bursts are a very rare phenomenon, meteorologists told The Wichita Eagle.