260  
FXAK69 PAFG 221343  
AFDAFG  
 
NORTHERN ALASKA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE FAIRBANKS AK  
443 AM AKST MON JAN 22 2018  
   
DISCUSSION
 
 
MODELS IN FAIR AGREEMENT THROUGH 60 HRS AND BEYOND WITH SLIGHT  
DIFFERENCES IN THE UPPER LOW PLACEMENT AFTER 60 HRS. A COLD 506  
DAM UPPER LEVEL LOW CENTER OVER BARROW WILL SINK DOWN OVER THE  
CENTER OF THE STATE AND WEAKEN SLIGHTLY TO 508 DAM BY WEDNESDAY  
MORNING THEN DEEPEN AGAIN AS IT MOVES NEAR KODIAK ISLAND. GENERAL  
MODEL CONSENSUS KEEPS THE LONGWAVE TROUGH OVER NORTHERN ALASKA AND  
A HIGH PRESSURE RIDGE OVER THE BERING SEA AND WEST COAST. RIDGING  
WILL PERSIST OVER THE BERING AND WEST COAST THROUGH NEXT WEEKEND.  
TO THE EAST OF THE UPPER LOW, CLOUDY CONDITIONS WILL CONTINUE TO  
HELP MODERATE TEMPERATURES, WHILE TO THE WEST PREDOMINATELY CLEAR  
SKIES WILL ALLOW FOR STRONG RADIATIONAL COOLING AND WILL PRODUCE  
COLDER TEMPERATURES.  
 
ARCTIC COAST AND BROOKS RANGE...WINDS HAVE DROPPED OFF ENOUGH  
OVER THE SLOPE SO THERE ARE NO WIND CHILL ADVISORIES THIS MORNING.  
SOME AREAS ARE STILL CLOSE TO 50 BELOW WIND CHILLS. COLD  
TEMPERATURES PERSIST WHERE IT IS CLEAR. 35 BELOW AROUND DEADHORSE  
THIS MORNING. COLD TEMPERATURES AND AREAS OF STRATUS WILL PERSIST  
INTO TUESDAY.  
 
EASTERN AND CENTRAL INTERIOR...FAIRBANKS DROPPED TO 30 BELOW  
YESTERDAY MORNING DUE TO A FEW HOURS OF CLEAR SKIES. THIS WAS THE  
COLDEST TEMPERATURE SO FAR THIS WINTER IN FAIRBANKS. TEMPERATURES  
IN FAIRBANKS AREA EXPECTED TO REMAIN COLD THROUGH THE WEEK, WITH  
TEMPERATURES BETWEEN 15 AND 30 BELOW ZERO. SKIES ARE EXPECTED TO  
REMAIN MOSTLY CLOUDY THROUGH THE WEEK OVER THE INTERIOR WITH  
FLURRIES/LIGHT SNOW. LIGHT ACCUMULATIONS EXPECTED. THE CLOUDY  
CONDITIONS WILL HELP KEEP TEMPERATURES FROM BOTTOMING OUT EVEN  
FURTHER THROUGH WEDNESDAY. WEST OF NENANA, WHERE SKIES HAVE  
CLEARED OUT, TEMPERATURES WILL FALL INTO THE 30S BELOW THIS  
MORNING, AND THEN REMAIN BETWEEN 30 AND 40 BELOW THROUGH MOST OF  
THIS WEEK. THE GRADIENT DOES TIGHTEN UP OVER HIGHER TERRAIN ACROSS  
MUCH OF THE NORTHERN AK AS THE UPPER LEVEL LOW DROPS DOWN NEAR  
KODIAK AND DEEPENS. THIS WILL HAVE TO BE WATCHED FOR POTENTIAL  
WIND CHILL ISSUES.  
 
WEST COAST AND WESTERN INTERIOR...MAXIMUM RADIATIONAL COOLING  
UNDER GENERALLY CLEAR SKIES WILL ALLOW FOR TEMPERATURES TO DROP  
INTO THE 30S AND 40S BELOW THIS MORNING. CURRENTLY HUSLIA AND  
BETTLES NEAR 45 BELOW WITH ICE FOG. WINDS ARE LIGHT BUT COULD  
STILL PRODUCE VERY LOW WIND CHILLS WITH THESE TEMPERATURES. WINDS  
ARE STILL FAIRLY STRONG ALONG THE COAST AND THERE IS A WIND CHILL  
ADVISORY FOR ZONE 210 THROUGH 6 PM THIS EVENING. WEST WINDS 15 TO  
25 MPH WILL PERSIST THROUGH THE DAY. WINDS WILL REMAIN BELOW 15  
MPH FOR MOST AREAS. BELOW NORMAL TEMPERATURES WILL PERSIST ACROSS  
THE REGION THROUGHOUT THE FORECAST PERIOD.  
 
COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE.  
 

 
   
AFG WATCHES/WARNINGS/ADVISORIES
 
 
WIND CHILL ADVISORY FOR AKZ210.  

 
 

 
 
JK JAN 18  
 
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