640  
FNUS73 KARX 231239  
FWSARX  
 
SPOT FORECAST FOR ORONOCO SNA...MNDNR  
NATIONAL WEATHER SERVICE LA CROSSE WI  
739 AM CDT THU MAY 23 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MAY 23.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (608) 784-8292 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
BREEZY CONDITIONS EXPECTED TODAY WITH WESTERLY WINDS  
GUSTING TO 20-25 KNOTS LATER THIS MORNING INTO THE AFTERNOON.  
THERE WILL BE A SUBTLE SHIFT IN WIND DIRECTION TO THE NW LATER  
THIS AFTERNOON WITH GUSTINESS DIMINISHING AS LOW PRESSURE  
CURRENTLY OVER LAKE SUPERIOR PULLS AWAY. GOOD MIXING EXPECTED  
TODAY UNDER PARTLY SUNNY SKIES WITH NO RH CONCERNS. NO RAIN IN THE  
FORECAST UNTIL LATER TONIGHT INTO FRIDAY MORNING AS ANOTHER  
SYSTEM LIFTS INTO THE REGION. LESSER CHANCES FOR RAIN EXPECTED  
HEADING INTO FRIDAY AFTERNOON.  
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY.  
CWR.................0 PERCENT.  
TEMPERATURE.........54 AT IGNITION...MAX 66.  
RH..................77 PERCENT AT IGNITION...MIN 48 PERCENT.  
WIND (20 FT)........WINDS WEST AT 11 MPH AT IGNITION...OTHERWISE  
NORTHWEST WINDS 7 TO 12 MPH. GUSTS UP TO 24 MPH  
UNTIL LATE AFTERNOON.  
SMOKE DISPERSAL.....GOOD /43800 KNOT-FT/ AT IGNITION.  
MAX...EXCELLENT /89400 KNOT-FT/.  
HAINES INDEX........2 VERY LOW AT IGNITION...MAX 4.  
 
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........58 61 65 62 58 54 52 49 47 46 44  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0  
TEMP............54 55 56 58 60 62 63 64 65 66 66  
RH..............77 74 69 64 60 56 54 52 48 48 48  
20 FT WIND DIR..W W W W W W W NW NW NW NW  
20 FT WIND SPD..11 12 12 12 12 12 11 10 9 8 6  
20 FT WIND GUST.19 21 22 21 20 19 19 18 16 14 9  
HAINES INDEX....2 2 2 3 3 4 4 4 4 4 4  
SDSPL KT-FT/100044 58 72 78 84 89 87 84 82 68 54  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF SHOWERS AFTER MIDNIGHT. SHOWERS  
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS EARLY  
IN THE MORNING. CHANCE OF PRECIPITATION 70  
PERCENT.  
CWR.................10 PERCENT INCREASING TO 70 PERCENT.  
TEMPERATURE.........MIN 52.  
RH..................MAX 89 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS UP TO 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT, THEN BECOMING SOUTHEAST  
5 TO 7 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
MORNING.  
SMOKE DISPERSAL.....POOR TO GOOD (6900-39600 KNOT-FT).  
 
TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM  
SKY (%).........43 59 62 71 84 92  
WEATHER COV..... CHANCE LIKELY  
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR  
TSTM COV........ S CHC  
CWR.............0 0 0 10 40 60  
TEMP............64 58 53 52 53 52  
RH..............54 67 80 83 80 86  
20 FT WIND......NW 5 N 3 NE 3 E 3 E 5 E 6  
20 FT WIND GUST.  
HAINES INDEX....4 5 5 4 4 3  
SDSPL KT-FT/100040 18 7 9 10 12  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS EARLY IN THE MORNING.  
CHANCE OF THUNDERSTORMS THROUGH THE DAY. CHANCE  
OF SHOWERS IN THE LATE MORNING AND AFTERNOON.  
CHANCE OF PRECIPITATION 90 PERCENT.  
CWR.................90 PERCENT DECREASING TO 80 PERCENT EARLY IN  
THE MORNING, THEN DECREASING TO 60 PERCENT  
EARLY IN THE MORNING DECREASING TO 40 PERCENT  
LATE IN THE MORNING INCREASING TO 50 PERCENT  
DECREASING TO 40 PERCENT EARLY IN THE AFTERNOON  
DECREASING TO 30 PERCENT DECREASING TO 20  
PERCENT LATE IN THE AFTERNOON.  
TEMPERATURE.........MAX 71.  
RH..................MIN 66 PERCENT.  
WIND (20 FT)........SOUTH WINDS 6 TO 11 MPH WITH GUSTS TO AROUND 23  
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS.  
SMOKE DISPERSAL.....FAIR TO EXCELLENT (14200-60300 KNOT-FT)  
INCREASING TO EXCELLENT (67500-78900 KNOT-FT)  
LATE IN THE AFTERNOON.  
HAINES INDEX........2 TO 3 OR VERY LOW.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........96 97 97 96 88 77  
WEATHER COV.....DEFNTE LIKELY CHANCE CHANCE CHANCE S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........S CHC S CHC S CHC CHANCE CHANCE S CHC  
CWR.............90 60 50 40 30 20  
TEMP............52 55 59 62 65 69  
RH..............93 86 78 75 73 70  
20 FT WIND......SE 8 SE 10 SE 11 SE 10 S 10 S 9  
20 FT WIND GUST.12 15 23 16 15 14  
HAINES INDEX....2 2 2 2 2 2  
SDSPL KT-FT/100014 32 47 60 58 68  
 

 
FORECASTER...MEK  
REQUESTED BY...RUSS SMITH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1909797.0/ARX  
.DELDT 05/23/19  
.EMAIL RUSSELL.SMITH@STATE.MN.US  
 
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