671  
FNUS73 KDVN 221314  
FWSDVN  
 
SPOT FORECAST FOR MILLRACE FLATS...IOWA DNR  
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL  
814 AM CDT WED MAR 22 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
SEASONABLY COLD TODAY UNDER GENERALLY MOSTLY SUNNY SKIES AND LIGHT  
EASTERLY WINDS OF 5 TO 10 MPH. AFTERNOON RH VALUES WILL FALL TO  
AROUND OR BELOW 40 PERCENT FOR SEVERAL HOURS TODAY.  
 
THE GRASSLAND FIRE DANGER INDEX -GFDI- DOES NOT ACCOUNT FOR  
PRECIPITATION THAT OCCURS OR ANY SNOW ON THE GROUND. PLEASE  
MAKE APPROPRIATE ADJUSTMENTS.  
 
   
TODAY
 
 
20-FOOT WINDS.......WINDS EAST AT 10 MPH AT IGNITION, OTHERWISE  
EAST WINDS 9 TO 10 MPH.  
TEMPERATURE.........36 AT IGNITION...MAX 44.  
WIND SHIFT..........NONE  
LAL.................0  
EYE LEVEL WINDS.....EAST WINDS 9 TO 10 MPH.  
CHANCE OF PCPN......0 PERCENT.  
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).  
TRANSPORT WINDS.....SOUTHEAST 12 TO 18 MPH.  
GFDI................4.  
MIXING HEIGHT.......1700-3600 FT AGL INCREASING TO 3700 FT AGL LATE  
IN THE AFTERNOON.  
RH..................52 PERCENT AT IGNITION...MIN 36 PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
CHANCE OF PCPN......0 PERCENT.  
 
TIME (CDT) 10 AM NOON 2 PM 4 PM  
SKY COVER.......PCLDY PCLDY PCLDY MCLDY  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TEMP............36 39 42 44  
RH..............52 44 39 36  
20 FT WIND......E 10 E 10 E 10 E 10  
20 FT WIND GUST.15 15 15 15  
EYE LEVEL WIND..E 7 E 7 E 7 E 7  
EYE LVL WND GST.15 15 15 15  
CHC OF PCPN (%).0 0 0 0  
HAINES INDEX....4 4 4 4  
GFDI............4 4 5 6  
   
TONIGHT
 
 
20-FOOT WINDS.......SOUTHEAST WINDS 9 TO 10 MPH.  
TEMPERATURE.........MIN 32.  
WIND SHIFT..........NONE  
LAL.................0  
EYE LEVEL WINDS.....SOUTHEAST WINDS 9 TO 10 MPH.  
CHANCE OF PCPN......10 PERCENT.  
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT).  
TRANSPORT WINDS.....SOUTHEAST 12 TO 18 MPH.  
GFDI................4.  
MIXING HEIGHT.......1500-3200 FT AGL DECREASING TO 1200 FT AGL LATE  
IN THE EVENING.  
RH..................MAX 69 PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
CHANCE OF PCPN......10 PERCENT.  
   
THURSDAY
 
 
20-FOOT WINDS.......SOUTHEAST WINDS 12 TO 14 MPH. GUSTS UP TO 25  
MPH IN THE LATE MORNING AND AFTERNOON. GUSTY  
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
LATE IN THE AFTERNOON.  
TEMPERATURE.........MAX 51.  
WIND SHIFT..........NONE  
LAL.................0  
EYE LEVEL WINDS.....SOUTHEAST WINDS 12 TO 14 MPH.  
CHANCE OF PCPN......40 PERCENT.  
SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN IN THE  
MORNING. CHANCE OF RAIN SHOWERS IN THE  
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE  
IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 16 TO 25 MPH.  
GFDI................5.  
MIXING HEIGHT.......1500 FT AGL.  
RH..................MIN 59 PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
CHANCE OF PCPN......40 PERCENT.  
 

 
FORECASTER...HAASE  
REQUESTED BY...ANDY ROBBINS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1704894.0/DVN  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IA Page
The Nexlab MO Page Main Text Page