761  
FNUS75 KBOU 221133  
FWSBOU  
 
SPOT FORECAST FOR BALD MOUNTAIN...JEFFERSON COUNTY SHERIFF  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
533 AM MDT SUN SEP 22 2019  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
IT WILL BE SUNNY AND DRY TODAY WITH MINIMUM HUMIDITY  
FROM 15% TO 20%. WINDS WILL BE NORTHWEST 5 TO 8 MPH THEN SOUTHEAST  
4 TO 6 MPH AFTER 1700.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........18%.  
WIND (20 FT)........NORTHWEST WINDS 5-8 MPH UNTIL 1700, THEN  
SOUTHEAST 4-6 MPH.  
MIXING HEIGHT.......4600 FT AGL UNTIL 1200, THEN 7000 FT AGL.  
TRANSPORT WINDS.....WEST 9-19 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN FAIR UNTIL 1000, THEN  
GOOD UNTIL 1600, THEN FAIR.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........2 3 3 4 5 7 8 8 9 9 9 8  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............39 38 40 45 50 56 60 64 66 67 68 68  
RH..............62 62 57 47 37 29 24 21 19 19 18 19  
20 FT WIND DIR..W W W NW NW NW NW NW NW NW N SE  
20 FT WIND SPD..7 7 5 5 5 5 6 7 7 7 6 5  
20 FT WIND GUST.  
MIX HGT (KFT)...1.3 2.1 2.9 3.7 4.5 5.3 6.2 6.6 7.0 7.4 6.5 5.6  
TRANSP WIND DIR.W W W W W W W W W W W SW  
TRANSP WIND SPD.12 15 17 19 20 20 21 19 17 16 13 12  
HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4  
SDSPL KT-FT/100011 21 35 51 66 81 97 92 86 79 60 43  
SMOKEDISPERSION.P P P F G G G G G G F F  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 42.  
MAX HUMIDITY........41%.  
WIND (20 FT)........SOUTHEAST WINDS 4-5 MPH UNTIL 2000, THEN WEST  
6-7 MPH.  
MIXING HEIGHT.......3700 FT AGL UNTIL 2000. BELOW 1000 FT AGL AFTER  
0300.  
TRANSPORT WINDS.....WEST 8-13 MPH.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........8 6 3 1 3 6 8 13 17 22 27 31  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............66 62 56 51 48 47 46 46 45 44 43 42  
RH..............20 23 29 34 37 37 37 35 35 36 38 41  
20 FT WIND DIR..SE SE SW W W W W W W W W W  
20 FT WIND SPD..5 4 4 5 6 6 7 7 7 7 7 7  
20 FT WIND GUST.8 8 8 8 8 8 8 8 8  
MIX HGT (KFT)...4.7 3.6 2.4 1.3 1.2 1.1 1.1 1.0 1.0 0.9 0.9 0.9  
TRANSP WIND DIR.SW SW SW S SW SW W W W W W W  
TRANSP WIND SPD.10 10 9 8 9 9 10 10 10 11 10 9  
HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 5  
SDSPL KT-FT/100029 20 12 6 6 6 6 6 6 6 6 5  
SMOKEDISPERSION.P P P P P P P P P P P P  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 71.  
MIN HUMIDITY........18%.  
WIND (20 FT)........SOUTHWEST WINDS 4-5 MPH UNTIL 1100, THEN EAST  
5-6 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 3700 FT AGL  
UNTIL 1200, THEN 7300 FT AGL UNTIL 1700, THEN  
4800 FT AGL.  
TRANSPORT WINDS.....SOUTH 8-13 MPH.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........36 37 39 41 47 54 60 59 58 57 56 55  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............43 47 51 56 61 65 67 69 70 71 71 70  
RH..............41 38 34 30 25 22 20 19 19 18 19 20  
20 FT WIND DIR..W W W W SW SE E E E E E E  
20 FT WIND SPD..5 5 5 5 5 5 5 5 6 6 6 5  
20 FT WIND GUST.  
MIX HGT (KFT)...0.9 0.8 0.7 0.6 2.3 4.0 5.7 6.4 7.0 7.7 6.3 4.8  
TRANSP WIND DIR.W W W W W W W W SW SW SW S  
TRANSP WIND SPD.8 8 8 8 8 9 9 9 9 9 9 8  
HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 5  
SDSPL KT-FT/10004 3 3 2 9 18 29 32 36 40 30 21  
SMOKEDISPERSION.P P P P P P P P P P P P  
 

 
FORECASTER...RPK  
REQUESTED BY...AARON BETCHER  
TYPE OF REQUEST...WILDFIRE  
.TAG 1915895.0/BOU  
.DELDT 09/22/19  
.FORMATTERVERSION 1.0.26  
.EMAIL AMBETCHER@JEFFCO.US  
 
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