Tuesday, November 8, 2011

Alaska Megastorm Update II: "Epic Magnitude" Developing

1 PM AKST Update: The latest surface weather map, from this morning, shows the major storm in the western Bering Sea with a minimum pressure of 948 mb, down 8 more millibars in the past 6 hours and 32 mb in 24 hours:



Original post:

Image (click to enlarge): Surface weather map for Alaska and northern Pacific at 12 noon GMT, November 8, 2011, from National Weather Service

A National Weather Service Special Weather Statement issued within the last hour warns of an "EXTREMELY DANGEROUS AND LIFE THREATENING STORM OF AN EPIC MAGNITUDE RARELY EXPERIENCED" for the west coast of Alaska. Over the Bering Strait coast and St. Lawrence Island, sustained hurricane force winds with gusts as high as 90 to 100 mph are predicted. Wind gusts have already been reported as high as 45 mph at Kivalina and 55 mph at Point Hope on the Chukchi Sea.

The storm moved past the western Aleutians around 3 am AKST this morning and is expected to move past the Bering Strait tonight. The surface weather map (above) from this morning shows a rapidly deepening 956 mb low of bomb proportions, down 24 mb in the past 18 hours.

From the National Weather Service:
...ALASKA WEST COAST TO BE HIT BY ONE OF THE MOST SEVERE BERING  
SEA STORMS ON RECORD...

A POWERFUL AND EXTREMELY DANGEROUS STORM OF NEAR RECORD OR
RECORD MAGNITUDE IS BEARING DOWN ON THE WEST COAST OF ALASKA.
AT 9 AM THIS MORNING THE STORM CENTER WAS LOCATED ABOUT 600
MILES SOUTHWEST OF ST LAWRENCE ISLAND. THE STORM IS FORECAST
TO MOVE RAPIDLY NORTHEAST TODAY AND TONIGHT WITH THE CENTER
MOVING ACROSS THE CHUKOTSK PENINSULA TONIGHT. ON WEDNESDAY
THE STORM WILL TAKE A NORTHWESTWARD TRACK INTO THE CHUKCHI SEA.

THE STORM WILL BRING EXTREMELY STRONG WINDS TO ALL OF THE
ALASKA WEST COAST BEGINNING THIS AFTERNOON OVER ST LAWRENCE
ISLAND AND BEGINNING THIS EVENING OVER THE REMAINDER OF
THE WEST COAST...ACCOMPANIED BY WIDESPREAD MAJOR COASTAL
FLOODING AND SEVERE BEACH EROSION OVER MANY PARTS OF THE
COASTLINE. THE WIND WILL PUSH LARGE AMOUNTS OF WATER INTO NORTON
SOUND...RAISING SEA LEVELS TO 7 TO 9 FEET ABOVE NORMAL IN NORTON
SOUND AND ALONG THE BERING STRAIT COAST. THE EXTREMELY STRONG
WINDS WILL PRODUCE HIGH WAVES WHICH WILL PUSH THE HIGH WATER
FARTHER INLAND.

OVER THE BERING STRAIT COAST AND ST LAWRENCE ISLAND...
SUSTAINED WINDS ARE EXPECTED TO REACH 75 MPH WITH MAXIMUM
GUSTS OF 90 TO 100 MPH. ALONG THE CHUKCHI COAST...WIND
SPEEDS OF 65 TO 70 MPH WITH GUSTS AS HIGH AS 90 MPH ARE
EXPECTED. IN THE NOME AREA...SUSTAINED WINDS AS HIGH AS
60 MPH ARE EXPECTED...WITH GUSTS TO 70 MPH. ALMOST ALL OTHER
AREAS OF THE WEST COAST WILL EXPERIENCE MAXIMUM WIND SPEEDS
OF AT LEAST 50 TO 60 MPH.

...THIS WILL BE EXTREMELY DANGEROUS AND LIFE THREATENING
STORM OF AN EPIC MAGNITUDE RARELY EXPERIENCED. ALL PEOPLE
IN THE AREA SHOULD TAKE PRECAUTIONS TO SAFEGUARD THEIR LIVES
AND PROPERTY.

1 comment:

Anonymous said...

Remember to cover your cheeks, forehead, mouth and nose to avoid bloody scratches from snow/ice crystals at +100kph, use a skiing mask over eyes and out you go, for 20 meters since the mask gets clogged for snow.

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