398  
FNUS73 KFGF 141021  
FWSFGF  
 
SPOT FORECAST FOR LETTENMAIER WPA...FWS  
NATIONAL WEATHER SERVICE GRAND FORKS ND  
521 AM CDT FRI JUN 14 2024  
 
FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON JUNE 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CALL THE NWS IN GRAND FORKS AT 701-795-5127 FOR ADDITIONAL  
INFORMATION AND MONITOR OUR WEBSITE (WWW.WEATHER.GOV/FGF) OR NOAA  
ALL-HAZARDS RADIO FOR THE LATEST UPDATES.  
   
DISCUSSION
 
 
FOR WESTERN BARNES COUNTY, LOOK FOR RH VALUES TO FALL INTO THE  
MIDDLE TO UPPER 30 PERCENT RANGE, WITH GENERALLY LIGHT WINDS  
THROUGH MUCH OF THE DAY. A GRADUAL WIND SHIFT TO THE SOUTHEAST IS  
EXPECTED EARLY THIS AFTERNOON, MOST LIKELY BETWEEN 1PM AND 3PM.  
WINDS WILL THEN INCREASE DURING THE LATE AFTERNOON AND EARLY  
EVENING, WITH WIND SPEEDS INCREASING TO AROUND 10 MPH.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........39 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO THE  
SOUTH IN THE AFTERNOON.  
MIXING HEIGHT.......5700 FT AGL.  
MIXING WINDS........WEST AROUND 5 MPH SHIFTING TO THE SOUTH LATE IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....24400 KNOT-FT EARLY IN THE MORNING INCREASING  
TO 54900 KNOT-FT IN THE AFTERNOON.  
 
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........2 2 3 11 7 21 31  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............72 74 76 77 78 79 79  
RH..............49 44 40 40 39 39 39  
20 FT WIND DIR..W SW S S S S S  
20 FT WIND SPD..5 5 5 5 5 10 10  
20 FT WIND GUST.7 7 9 11 12 14 14  
MIX HGT (KFT)...4.1 4.9 5.2 5.5 5.5 5.7 5.5  
MIXING WIND DIR.W W W SW S S S  
MIXING WIND SPD.5 5 5 5 10 10 10  
VRATE KT-FT/1K..25 24 26 33 44 51 55  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE LATE  
EVENING AND OVERNIGHT.  
MIN TEMPERATURE.....AROUND 63.  
MAX HUMIDITY........84 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 10 TO 15 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
EVENING.  
MIXING HEIGHT.......400 FT AGL.  
MIXING WINDS........SOUTHEAST 10 TO 15 MPH SHIFTING TO THE SOUTH  
AROUND 20 MPH OVERNIGHT.  
SMOKE DISPERSAL.....40700 KNOT-FT EARLY IN THE EVENING DECREASING  
TO 5700 KNOT-FT LATE IN THE NIGHT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........46 74 80 72 81 74  
WEATHER COV..... S CHC CHANCE CHANCE CHANCE CHANCE  
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ S CHC CHANCE CHANCE CHANCE CHANCE  
TEMP............80 76 70 66 65 65  
RH..............39 50 66 75 78 75  
20 FT WIND......SE 10 SE 10 SE 10 SE 10 SE 10 SE 15  
20 FT WIND GUST.15 15 16 19 20 22  
MIX HGT (FT)....4100 600 400 500 500 600  
MIXING WIND.....S 10 SE 10 SE 15 SE 15 S 20 S 20  
VRATE KT-FT/1K..41 6 6 8 9 10  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). CHANCE OF  
THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF  
SHOWERS IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS LATE IN THE MORNING.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........62 PERCENT.  
WIND (20 FT)........SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND  
28 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS EARLY IN THE MORNING. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE  
IN THE MORNING.  
MIXING HEIGHT.......2800 FT AGL.  
MIXING WINDS........SOUTH 20 TO 25 MPH INCREASING TO 25 TO 30 MPH  
IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....10500 KNOT-FT EARLY IN THE MORNING INCREASING  
TO 70900 KNOT-FT IN THE AFTERNOON.  
 
TIME (CDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........73 75 65 65  
WEATHER COV.....CHANCE CHANCE CHANCE  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE  
TSTM COV........CHANCE CHANCE S CHC  
TEMP............63 67 73 75  
RH..............84 84 68 64  
20 FT WIND......S 15G23 S 20G26 S 20G28 S 20G26  
MIX HGT (FT)....600 2000 2600 2700  
MIXING WIND.....S 20 S 30 S 30 S 25  
VRATE KT-FT/1K..11 46 65 63  
 

 
FORECASTER...TL  
REQUESTED BY...TERRY GWILLIAMS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2416037.1/FGF  
.DELDT 06/14/24  
.FORMATTERVERSION 2.0.0  
.EMAIL TERRY_GWILLIAMS@FWS.GOV  
 
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