261  
FNUS73 KUNR 141458  
FWSUNR  
 
SPOT FORECAST FOR RCFD / CST OHARRA HAXMAT EXERCISE...PENNINGTON COUNTY EMERGENCY MANAGEMENT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
858 AM MDT WED APR 14 2021  
 
FORECAST IS BASED ON FORECAST START TIME OF 0900 MDT ON APRIL 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
COOL TODAY, WITH NORTH NORTHWEST WINDS GRADUALLY  
SHIFTING NORTH NORTHEAST BY LATE AFTERNOON. WINDS SPEEDS WILL BE  
BETWEEN 10 AND 15 MPH, WITH A FEW GUSTS UP TO 22 MPH POSSIBLE. A  
STORM SYSTEM MOVES INTO THE AREA LATE TONIGHT AND EARLY THURSDAY.  
PRECIPITATION, IN THE FORM OF RAIN AND SNOW, IS EXPECTED TO BEGIN  
AROUND DAYBREAK THURSDAY. THE HEAVIEST PRECIPITATION FROM THIS  
SYSTEM WILL BE DURING THE DAY ON THURSDAY. ABOUT A QUARTER OF AN  
INCH OF LIQUID IS EXPECTED, WITH ABOUT AN INCH OR SO OF SNOW.  
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY.  
MAX TEMPERATURE.....AROUND 43.  
MIN HUMIDITY........38 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
SURFACE WINDS (MPH).NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND  
22 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....AROUND 27.  
MAX HUMIDITY........90 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
SURFACE WINDS (MPH).NORTHEAST WINDS 6 TO 10 MPH IN THE EVENING  
BECOMING LIGHT AND VARIABLE OVERNIGHT.  
 

 
FORECASTER...MS  
REQUESTED BY...DUSTIN WILLETT  
TYPE OF REQUEST...HAZMAT  
.TAG 2109046.0/UNR  
.DELDT 04/14/21  
.FORMATTERVERSION 1.0.26  
.EMAIL DUSTIN.WILLETT@PENNCO.ORG  
 
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