883  
FNAK79 PAFG 221703  
FWSAFG  
 
SPOT FORECAST FOR DTA EAST RX...ALASKA FIRE SERVICE  
NATIONAL WEATHER SERVICE FAIRBANKS AK  
903 AM AKDT SUN APR 22 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 1100 AKDT ON APRIL 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A LOW PRESSURE TROUGH NORTH OF THE ALASKA RANGE WILL PERSIST THROUGH MON.  
A WEATHER FRONT WILL MOVE NORTH OVER THE ALASKA RANGE ON TUE.  
SOUTHERLY GAP FLOW WINDS THROUGH ALASKA RANGE PASSES WILL INCREASE  
THROUGH MON NIGHT, THEN STRONG SOUTHERLY CHINOOK WINDS WILL DEVELOP  
ACROSS ALL OF THE ALASKA RANGE ON TUE.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 48.  
MIN HUMIDITY........25 PERCENT.  
WIND (20 FT)........SOUTHEAST 15 MPH.  
RIDGETOP WIND.......SOUTHEAST 20 MPH  
MIXING HEIGHT.......2000 FT AGL INCREASING TO 5000 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHEAST 15 MPH.  
INVERSION BURNOFF...11 AM.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (45 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 32.  
MAX HUMIDITY........64 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 15 MPH.  
RIDGETOP WIND.......SOUTHEAST WINDS 20 MPH.  
MIXING HEIGHT.......5000 FT AGL DECREASING TO 1000 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTHEAST 15 MPH.  
INVERSION SETUP.....10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........CLOUDY (85 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........25 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 15 MPH BECOMING SOUTH IN THE AFTERNOON.  
RIDGETOP WIND.......SOUTH WINDS 20 MPH.  
MIXING HEIGHT.......1000 FT AGL INCREASING TO 5400 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 15 MPH.  
INVERSION BURNOFF...10 AM.  
 

 
FORECASTER...BRADER  
REQUESTED BY...DEMERS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1806761.6/AFG  
.DELDT 04/22/18  
 
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