906  
FXUS63 KUNR 170444  
AFDUNR  
 
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY  
NATIONAL WEATHER SERVICE RAPID CITY SD  
1044 PM MDT MON OCT 16 2017  
   
DISCUSSION
 
(THIS EVENING THROUGH MONDAY)  
ISSUED AT 247 PM MDT MON OCT 16 2017  
 
BROAD UPPER RIDGE IS IN PLACE OVER THE WESTERN HALF OF THE  
COUNTRY. AT THE SURFACE, A WEAK TROF IS SHIFTING EAST ACROSS THE  
DAKOTAS. UNDER MOSTLY CLEAR SKIES AT 3PM, WINDS ARE OUT OF THE  
NORTH TO NORTHWEST AT 5 TO 15 MPH, AND TEMPERATURES ARE IN THE MID  
60S TO MID 70S.  
 
PERSISTENT UPPER RIDGE WILL BRING WARM AND DRY WEATHER TO THE  
REGION THROUGH THE WEEK. HIGHS WILL BE IN THE 70S EACH DAY, EXCEPT  
WEDNESDAY WILL BE SLIGHTLY COOLER FOLLOWING THE PASSAGE OF A WEAK  
UPPER WAVE AND ITS ASSOCIATED COOL FRONT. SOME LOWER 80S WILL BE  
POSSIBLE THURSDAY AND FRIDAY.  
 
A TROUGH WILL APPROACH THE AREA FOR THE WEEKEND, RESULTING IN COOLER  
WEATHER AND SOME CHANCES FOR LIGHT RAIN/SNOW SHOWERS ON SATURDAY.  
WARM AND DRY CONDITIONS LOOK TO RETURN FOR SUNDAY INTO EARLY NEXT  
WEEK.  
 

 
   
AVIATION
 
(FOR THE 06Z TAFS THROUGH 06Z TUESDAY NIGHT)  
ISSUED AT 1043 PM MDT MON OCT 16 2017  
 
MOSTLY CLEAR SKIES WILL CONTINUE THROUGH THE PERIOD WITH  
OCCASIONAL BANDS OF HIGH CLOUDS CROSSING THE FORECAST AREA.  
 

 
   
FIRE WEATHER
 
 
ISSUED AT 247 PM MDT MON OCT 16 2017  
 
IN GENERAL, LOW RELATIVE HUMIDITIES AND BREEZY WINDS CAN BE  
EXPECTED AT TIMES FOR MUCH OF THE AREA THROUGH FRIDAY. TUESDAY  
WILL BE SLIGHTLY WARMER AND DRIER ACROSS THE CWA, AND GUSTY WINDS  
WILL CREATE RED FLAG CRITERIA ACROSS SOUTHERN CAMPBELL COUNTY.  
HAVE ISSUED A RED FLAG WARNING FOR ZONE 259 FOR TUESDAY AFTERNOON.  
 

 
   
UNR WATCHES/WARNINGS/ADVISORIES
 
 
SD...NONE.  
WY...RED FLAG WARNING FROM NOON TO 6 PM MDT TUESDAY FOR WYZ259.  
 

 
 

 
 
DISCUSSION...15  
AVIATION...10  
FIRE WEATHER...15  
 
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