195  
FXUS65 KCYS 170857  
AFDCYS  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE CHEYENNE WY  
257 AM MDT WED OCT 17 2018  
   
SHORT TERM
 
(TODAY AND TONIGHT)  
ISSUED AT 257 AM MDT WED OCT 17 2018  
 
ANOTHER QUIET, PLEASANT DAY IN STORE. TEMPERATURES WILL REACH  
INTO THE MIDDLE 50S TO LOW 60S ACROSS THE HIGH PLAINS UNDER MOSTLY  
CLEAR SKIES. SOME INCREASE IN CLOUDS ALONG THE SNOWY AND SIERRA  
MADRE RANGES AS AN UPPER LEVEL LOW WEAKENS MOVING NORTHWARD FROM  
THE FOUR CORNERS REGION. STRONG MODEL CONFIDENCE ON LACK OF  
PRECIPITATION BEING PRESENT OVER THE REGION.  
   
LONG TERM
 
(THURSDAY THROUGH TUESDAY)  
ISSUED AT 257 AM MDT WED OCT 17 2018  
 
AS THE UPPER LEVEL LOW WEAKENS INTO COLORADO, A FEW LIGHT STRAY  
FLURRIES MAY BE POSSIBLE OVER THE SNOWY AND SIERRA MADRE RANGES  
THURSDAY AFTERNOON, OTHERWISE DRIER CONDITIONS AND NEAR TO ABOVE  
NORMAL TEMPERATURES STILL FORECASTED TO PERSIST THROUGH THE  
WEEKEND. THESE CONDITIONS WILL REMAIN RELATIVELY UNCHANGED AS AN  
UPPER LEVEL RIDGE IS FORECASTED TO MOVE OVER THE REGION AFTER THE  
PASSING OF THE INGESTED LOW IN AN UPPER LEVEL TROUGH.  
 
WITH THE PASSING RIDGE MONDAY, A ROUND OF LIGHT PRECIPITATION IS  
POSSIBLE ACROSS THE SOUTHWEST PORTION OF THE CWA MONDAY AFTERNOON  
AND EVENING WITH HIGHER TOTALS OVER THE SIERRA MADRES.  
 

 
   
AVIATION
 
(FOR THE 06Z TAFS THROUGH 06Z WEDNESDAY NIGHT)  
ISSUED AT 257 AM MDT WED OCT 17 2018  
 
VFR PREVAILS THROUGH THE TAF PERIOD. SKC SKY CONDITIONS ARE LIKELY  
TO DOMINATE, ALONG WITH LIGHT WINDS.  
 

 
   
FIRE WEATHER
 
 
ISSUED AT 257 AM MDT WED OCT 17 2018  
 
HUMIDITIES AND WINDS WILL REMAIN BELOW CRITERIA AS MILD  
TEMPERATURES PERSIST WITH MELTING SNOW PACK AND LACK OF  
PRECIPITATION EXPECTED.  
 

 
   
CYS WATCHES/WARNINGS/ADVISORIES
 
 
WY...NONE.  
NE...NONE.  

 
 

 
 
SHORT TERM...WM  
LONG TERM...WM  
AVIATION...CLH  
FIRE WEATHER...WM  
 
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