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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Tuesday
• 
• High: 86 °
• Low: 55 °
• Partly Cloudy

• Wednesday
• 
• High: 70 °
• Low: 54 °
• Partly Cloudy

• Thursday
• 
• High: 72 °
• Low: 55 °
• Partly Cloudy

• Friday
• 
• High: 73 °
• Low: 48 °
• Mostly Cloudy

• Saturday
• 
• High: 70 °
• Low: 48 °
• Partly Cloudy

Southcentral and southwest Alaska forecast discussion 
National Weather Service Anchorage Alaska 
400 PM akdt Tuesday Jun 18 2013 


Analysis and upper levels...the upper level high is centered over 
western and southwest Alaska today as an upper level low is entering 
the northeast Gulf from the Yukon. This low will proceed westward 
around the southern flank of the ridge over the next day which will 
bring it into southwest Alaska by tomorrow. This will also enhance 
the ridge over the northern Gulf which will start to bring southerly 
winds up the Copper River basin and into farther inland portions of 
south central Alaska. 


Model discussion...models remain in good agreement for the next few 
days. By the weekend there is still reasonable agreement on the 
pattern over the state but the difference in details is becoming more 
pronounced and will have more impact on the forecast. 


Short term forecast... 
south central Alaska remains under hot conditions in the inland 
sections today while the normal sea breeze has developed along the 
north Gulf Coast bringing in much cooler conditions today that 
yesterday. 
Tomorrow will see the beginning of a cooling trend that will see the 
end of the record and near record temperatures. 


Southwest Alaska...the atmosphere remains quite unstable in southwest 
Alaska but there is little moisture to get any convection going. 
That will chance over the next few days as the upper level wave moves 
through the area tomorrow and will likely touch off some showers and 
thunderstorms as it does. There will also be some smoke over a large 
part of southwest Alaska coming from a number of fires including the 
large one in the Lime Hills near Lime Village. 


The Aleutians will continue to contend with low clouds fog and some 
rain. A large low will move near the western Aleutians by Thursday 
night which will usher in a new wave of wind and rain to that area. 


Long term forecast...the weather pattern begins a bit of a shift by 
this weekend as the large low near the western Aleutians Thursday 
night will move to the Alaska Peninsula by Sunday. This will help 
shift the upper level pattern over the Mainland part of the state to 
a more southeast flow which will bring in more moisture and more 
normal temperatures. 


Aer/alu...watch/warning summary 
public...Flood Advisory 111. 
Marine...gale 176. 
Fire weather...red flag warning 111 141 145 152 161. 


Jun 13