049  
FNUS73 KDMX 021824  
FWSDMX  
 
SPOT FORECAST FOR OSCEOLA FIRE HOUSE BURN...CLARKE COUNTY EMERGENCY MANAGEMENT  
NATIONAL WEATHER SERVICE DES MOINES IA  
124 PM CDT FRI JUN 2 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON JUNE 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED.  
 
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.  
   
DISCUSSION
 
 
WINDS TO BE SOUTHWESTERLY SATURDAY WITH SOME GUSTINESS BY LATE  
MORNING/AFTERNOON. WINDS WILL SHIFT AROUND TO THE WEST SATURDAY  
NIGHT AND THEN NORTHWEST FOR SUNDAY. DRIER AIR WILL MOVE IN SUNDAY  
WITH RH VALUES FALLING TO AROUND 35 PERCENT IN THE AFTERNOON.  
 
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
MAX TEMPERATURE.....AROUND 86.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......300-1500 FT AGL INCREASING TO 6800-7300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 6 TO 14 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 7 AM 11 AM 3 PM  
SKY (%).........13 16 27  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE  
TSTM COV........  
TEMP............66 81 86  
RH..............87 58 45  
20 FT WIND......SW 5G10 SW 10G15 SW 10G15  
MIX HGT (FT)....300 4800 7100  
MIXNG WIND......SW 6 SW 14 SW 14  
HAINES INDEX....4 4 4  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
MIN TEMPERATURE.....AROUND 65.  
MAX HUMIDITY........90 PERCENT.  
WIND (20 FT)........WEST WINDS 5 TO 7 MPH.  
MIXING HEIGHT.......5600-6200 FT AGL DECREASING TO 300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 13 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 6 PM 10 PM 2 AM  
SKY (%).........33 28 35  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE  
TSTM COV........  
TEMP............85 72 67  
RH..............48 73 87  
20 FT WIND......SW 7G10 SW 5 SW 6  
MIX HGT (FT)....6200 300 300  
MIXNG WIND......SW 13 S 6 SW 6  
HAINES INDEX....4 4 4  
 

 
FORECASTER...BEERENDS  
REQUESTED BY...BYRON JIMMERSON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1710483.0/DMX  
.EMAIL BJIMMERSON@CLARKECOUNTYIOWA.ORG  
 
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