937  
FNUS73 KMPX 091226  
FWSMPX  
 
SPOT FORECAST FOR ROSBY LAKE...FWS  
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN  
726 AM CDT SAT MAY 9 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 09.  
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH  
THIS FORECAST.  
   
DISCUSSION  
 
A SPECIAL WEATHER STATEMENT FOR ELEVATED FIRE CONDITIONS IS ACTIVE  
FOR THIS LOCATION UNTIL 7PM. TEMPERATURES WILL STRUGGLE TO RISE  
BEYOND THE UPPER 50S TODAY, RESULTING IN RH DROPPING TO THE MID  
20S AS OPPOSED TO THE TEENS SEEN ON FRIDAY. THERE IS HIGH  
CONFIDENCE IN NORTHWESTERLY WINDS INCREASING DURING THE DAYLIGHT  
HOURS, SUSTAINED AT 15MPH GUSTING FREQUENTLY TO 20-25MPH WITH  
ISOLATED GUSTS TO 30MPH POSSIBLE. WINDS WILL DIMINISH AFTER 7PM AS  
WE LOSE DAYLIGHT AND MIXING. COMPARED TO FRIDAY, WINDS WILL BE  
WEAKER, AND RELATIVE HUMIDITY WILL BE A BIT HIGHER DUE TO LOWER  
TEMPERATURES.  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
TEMPERATURE.........50 AT IGNITION...MAX 57.  
RH..................51 PERCENT AT IGNITION...MIN 27 PERCENT.  
WIND (20 FT)........WINDS NORTH AT 16 MPH AT IGNITION...OTHERWISE  
NORTHWEST WINDS 16 TO 21 MPH.  
SMOKE DISPERSAL.....EXCELLENT /71100 KNOT-FT/ AT IGNITION.  
MAX...EXCELLENT /156200 KNOT-FT/.  
MIXING HEIGHT.......3700 FT AGL AT IGNITION...OTHERWISE 7100 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 22 TO 26 MPH.  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM  
SKY COVER.......CLR CLR CLR CLR CLR MCR MCR MCR MCR CLR MCR MCR  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............50 51 53 54 55 56 56 57 55 54 53 48  
RH..............51 44 36 35 31 29 29 27 29 30 33 39  
20 FT WIND DIR..N N NW NW NW NW NW NW NW NW NW N  
20 FT WIND SPD..16 17 20 21 21 20 20 20 18 17 14 9  
20 FT WIND GUST.25 28 30 29 29 30 30 30 28 26 21 14  
MIX HGT (KFT)...3.7 4.8 5.4 5.8 5.9 6.3 6.7 7.1 7.1 6.7 1.0 0.6  
TRANSP WIND DIR.N N N NW NW NW NW NW NW NW N N  
TRANSP WIND SPD.22 24 26 26 25 25 25 25 24 22 16 13  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (45-55 PERCENT).  
TEMPERATURE.........MIN 34.  
RH..................MAX 75 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 9 TO 18 MPH SHIFTING TO THE  
NORTH 5 TO 6 MPH IN THE LATE EVENING AND  
OVERNIGHT.  
SMOKE DISPERSAL.....EXCELLENT (127000 KNOT-FT) DECREASING TO FAIR  
(14300 KNOT-FT) EARLY IN THE EVENING DECREASING  
TO POOR (1400 KNOT-FT) LATE IN THE NIGHT EARLY  
IN THE EVENING.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....NORTH 16 TO 24 MPH DECREASING TO 6 TO 13 MPH IN  
THE LATE EVENING AND OVERNIGHT.  
   
SUNDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).  
TEMPERATURE.........MAX 55.  
RH..................MIN 33 PERCENT.  
WIND (20 FT)........NORTH WINDS 6 TO 15 MPH SHIFTING TO THE  
NORTHWEST 15 TO 17 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (2800 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (74000 KNOT-FT) IN THE  
AFTERNOON INCREASING TO EXCELLENT (105200  
KNOT-FT) IN THE AFTERNOON.  
MIXING HEIGHT.......7300 FT AGL.  
TRANSPORT WINDS.....NORTH 9 TO 17 MPH SHIFTING TO THE NORTHWEST 18  
TO 21 MPH LATE IN THE MORNING.  
 
 
FORECASTER...HASENSTEIN  
REQUESTED BY...MILLETTE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2613198.0/MPX  
.DELDT 05/09/26  
.FORMATTERVERSION 2.0.0  
.EMAIL PHIL_MILLETTE@FWS.GOV  
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