240  
FNUS73 KDVN 231218  
FWSDVN  
 
SPOT FORECAST FOR VIRGINIA GROVE PRAIRIE & DITCHES...LOUISA COUNTY CONSERVATION  
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL  
718 AM CDT THU MAR 23 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON MARCH 23.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A DEVELOPING STORM SYSTEM IN THE SOUTHERN PLAINS WILL BRING  
CLOUDY SKIES AND SCATTERED SHOWERS AND POSSIBLY AN ISOLATED  
STORM TO THE REGION. BREEZY SOUTHEAST WINDS WILL OCCUR TODAY  
ALONG WITH SEASONABLY COOL TEMPERATURES. AFTERNOON HUMIDITY  
VALUES WILL REMAIN GENERALLY ABOVE 50 PERCENT.  
 
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 SOUTHEAST AT 13 MPH AT IGNITION,  
OTHERWISE SOUTHEAST WINDS 13 TO 15 MPH. GUSTY  
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
IN THE LATE MORNING AND EARLY AFTERNOON.  
TEMPERATURE.........37 AT IGNITION...MAX 50.  
WIND SHIFT..........NONE  
LAL.................1  
EYE LEVEL WINDS.....SOUTHEAST WINDS 13 TO 15 MPH.  
CHANCE OF PCPN......20 PERCENT.  
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SLIGHT CHANCE OF RAIN  
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS  
THROUGH THE DAY. CHANCE OF RAIN IN THE  
AFTERNOON.  
TRANSPORT WINDS.....SOUTHEAST 16 TO 25 MPH.  
GFDI................6.  
MIXING HEIGHT.......0 FT AGL.  
RH..................64 PERCENT AT IGNITION...MIN 54 PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
CHANCE OF PCPN......20 PERCENT.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY MCLDY  
WEATHER COV..... S CHC S CHC CHANCE S CHC S CHC  
WEATHER TYPE....NONE RAIN RAIN RAIN RAIN RAIN  
TEMP............37 38 41 44 48 50  
RH..............64 64 59 57 54 56  
20 FT WIND......SE 13 SE 14 SE 14 SE 15 SE 15 SE 14  
20 FT WIND GUST.15 20 20 20 20 20  
EYE LEVEL WIND..SE 9 SE 10 SE 10 SE 11 SE 11 SE 10  
EYE LVL WND GST.15 20 20 20 20 20  
CHC OF PCPN (%).10 20 20 30 20 20  
HAINES INDEX....4 2 2 3 3 4  
GFDI............4 5 5 6 7 6  
   
TONIGHT
 
 
20-FOOT WINDS.......SOUTH WINDS 12 TO 14 MPH.  
TEMPERATURE.........MIN 48.  
WIND SHIFT..........NONE  
LAL.................0  
EYE LEVEL WINDS.....SOUTH WINDS 12 TO 14 MPH.  
CHANCE OF PCPN......10 PERCENT.  
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).  
TRANSPORT WINDS.....SOUTH 16 TO 25 MPH DECREASING TO 7 TO 14 MPH  
AFTER MIDNIGHT.  
GFDI................5.  
MIXING HEIGHT.......0 FT AGL.  
RH..................MAX 80 PERCENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CHANCE OF PCPN......10 PERCENT.  
   
FRIDAY
 
 
20-FOOT WINDS.......SOUTH WINDS 12 TO 16 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE  
AFTERNOON.  
TEMPERATURE.........MAX 73.  
WIND SHIFT..........NONE  
LAL.................0  
EYE LEVEL WINDS.....SOUTH WINDS 12 TO 16 MPH.  
CHANCE OF PCPN......20 PERCENT.  
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF RAIN  
SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF  
THUNDERSTORMS LATE IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH INCREASING TO 18 TO 21 MPH IN  
THE AFTERNOON.  
GFDI................9.  
MIXING HEIGHT.......0 FT AGL.  
RH..................MIN 48 PERCENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CHANCE OF PCPN......20 PERCENT.  
 

 
FORECASTER...NICHOLS  
REQUESTED BY...KATIE HAMMOND  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1705031.0/DVN  
 
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