916  
FNUS75 KCYS 241516  
FWSCYS  
 
SPOT FORECAST FOR SERVICE BACKUP TEST EXERCISE...NWS RIVERTON  
NATIONAL WEATHER SERVICE CHEYENNE WY  
ISSUED BY NATIONAL WEATHER SERVICE RIVERTON WY  
916 AM MDT WED APR 24 2024  
 
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE AT (800) 211-1448.  
   
DISCUSSION
 
 
THIS IS A TEST SPOT FORECAST IN SUPPORT OF QUARTERLY SERVICE  
BACKUP. THIS IS ONLY A TEST.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........23 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS AROUND 5 MPH SHIFTING TO THE  
NORTHWEST 6 TO 7 MPH LATE IN THE AFTERNOON,  
THEN SHIFTING TO THE NORTHEAST AROUND 9 MPH  
LATE IN THE AFTERNOON.  
 
TIME (MDT) 10 AM NOON 2 PM 4 PM  
SKY (%).........28 34 37 42  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
TEMP............55 64 71 72  
RH..............45 32 25 24  
SURFACE WIND....S 5 SW 5 W 5 NW 7  
SURFACE WND GST.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING  
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (55-65 PERCENT). WIDESPREAD DENSE  
FOG AFTER 3 AM.  
MIN TEMPERATURE.....AROUND 46.  
MAX HUMIDITY........87 PERCENT.  
SURFACE WINDS (MPH).EAST WINDS 8 TO 9 MPH SHIFTING TO THE SOUTHEAST  
IN THE LATE EVENING AND OVERNIGHT, THEN  
SHIFTING TO THE NORTHEAST OVERNIGHT SHIFTING TO  
THE SOUTHEAST AROUND 7 MPH EARLY IN THE  
MORNING.  
 
TIME (MDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........54 51 52 56 62 66  
WEATHER COV..... WIDSPD  
WEATHER TYPE....NONE NONE NONE NONE NONE FOG  
TSTM COV........  
TEMP............70 63 56 53 51 48  
RH..............29 39 57 71 77 84  
SURFACE WIND....E 9 E 9 SE 8 S 8 NE 9 NE 8  
SURFACE WND GST.10  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). WIDESPREAD DENSE  
FOG EARLY IN THE MORNING. PATCHY FOG EARLY IN  
THE MORNING. CHANCE OF SPRINKLES IN THE  
MORNING. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN  
THE AFTERNOON, THEN CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........27 PERCENT.  
SURFACE WINDS (MPH).SOUTHEAST WINDS 6 TO 14 MPH.  
 
TIME (MDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........71 56 43 31 45 57  
WEATHER COV.....WIDSPD CHANCE CHANCE S CHC S CHC CHANCE  
WEATHER TYPE....FOG RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ S CHC  
TEMP............46 50 61 70 72 70  
RH..............85 80 52 33 28 32  
SURFACE WIND....SE 6 S 6 S 7 S 8 SE 9 SE 12  
SURFACE WND GST. 14  
 

 
FORECASTER...CNJ  
REQUESTED BY...JONES  
TYPE OF REQUEST...OTHER  
.TAG 2412291.0/CYS  
.DELDT 04/24/24  
.FORMATTERVERSION 2.0.0  
.EMAIL NWS.RIVERTON@NOAA.GOV  
 
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