580
FNUS75 KBOU 270005
FWSBOU
SPOT FORECAST FOR HWY 67 FIRE...SOUTH METRO FIRE RESCUE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
605 PM MDT SUN JUL 26 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
CURRENT OBSERVATIONS SHOW GUSTY NORTHERLY WINDS
BETWEEN 20-25 MPH IN PLACE BEHIND A RECENTLY PASSING BOUNDARY.
THIS HAS COOLED TEMPERATURES SLIGHTLY, WITH CURRENT TEMPS IN THE
AREA IN THE MID 90S. WINDS ARE EXPECTED TO MAINTAIN A NW COMPONENT FOR
THE NEXT FEW HOURS, WITH WINDS DECREASING IN MAGNITUDE BEFORE
WESTERLY DOWNSLOPE WINDS SETTLE IN FOR THE OVERNIGHT BY 2400-0100.
FOR THE NEAR TERM, THERE ARE SOME SHOWERS DEVELOPING OVER THE
PALMER DIVIDE THAT WILL KEEP ABOUT A 20-30% CHANCE FOR
THUNDERSTORMS TO GET CLOSE TO YOUR LOCATION FOR THE NEXT FEW
HOURS. OUTSIDE OF ANY PASSING SHOWER/STORMS, WESTERLY GUSTS TO 20
MPH WILL BE POSSIBLE BETWEEN 0100-0300. COULD SEE SOME OVERNIGHT
SHOWERS DEVELOP, WITH THE BEST TIMING BETWEEN 2200-2400, WITH VERY
LOW CHANCES FOR LIGHTNING. DEPENDING WHERE THE SHOWERS DEVELOP,
THERE COULD BE SOME GUSTY OUTFLOWS IN THAT TIME PERIOD THAT COULD
LEAD TO SUDDEN CHANGES IN WIND SPEED AND DIRECTION. IF THEY
DEVELOP OVER YOUR LOCATION, EXPECT WINDS TO BE VARIABLE IN
DIRECTION, BUT IF THEY DEVELOP NEAR THE LOCATION, THEY WOULD
LIKELY COME FROM THE DIRECTION WHERE THEY ARE RELATIVE TO THE
FIRE, WITH WIND SPEEDS POTENTIALLY REACHING 25 TO 35 MPH.
EXPECTING RH VALUES TO RECOVER AROUND 50%, WITH POTENTIAL FOR
HIGHER RH IF A SHOWER MOVES OVER.
ANOTHER HOT DAY IS EXPECTED ON MONDAY, WITH AFTERNOON TEMPERATURES
EXPECTED TO CLIMB INTO THE 90S ONCE AGAIN. WINDS ARE EXPECTED TO
BE LIGHT IN THE MORNING WITH A NORTH TO NORTHEAST TRANSITION
THROUGH THE MORNING. SHOWER AND STORM CHANCES LOOK SLIGHTLY BETTER
THAN TODAY, WITH INCREASING CHANCES BEGINNING AROUND 1200, WITH
LIKELY CHANCES BY 1500-1600. THESE STORMS WILL HAVE POTENTIAL FOR
SOME HEAVY RAINFALL, LIGHTNING, AND GUSTY OUTFLOW WINDS BETWEEN
30-40MPH. MIN RH IS FORECAST TO BE AROUND 25-35%.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 0500, THEN
PARTLY CLOUDY (35-45 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS UNTIL 2100, THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
UNTIL 2400.
CWR.................12 PERCENT DECREASING TO 2 PERCENT OVERNIGHT.
CHANCE OF THUNDER...35 PERCENT.
MIN TEMPERATURE.....AROUND 70.
MAX HUMIDITY........51 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 8 MPH UNTIL 1900. WEST
AFTER 2100. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS UNTIL 2400.
MIXING HEIGHT.......6300 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER
2000.
TRANSPORT WINDS.....NORTH AROUND 12 MPH UNTIL 1900, THEN WEST 9 TO
15 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 0300.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........65 77 79 86 73 75 74 75 73 82 79 40
WEATHER COV.....CHC CHC CHC SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........CHC CHC CHC SCH SCH SCH
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
CHC OF THDR (%).40 40 40 20 20 20 10 10 10 0 0 0
TEMP............91 87 83 79 78 78 76 76 77 75 75 74
RH..............27 31 36 41 42 43 46 46 46 48 46 47
20 FT WIND DIR..NW NW NW W W W W W W W W W
20 FT WIND SPD..8 7 7 9 8 8 8 7 6 7 7 7
20 FT WIND GUST.13 12 12 15 13 13 13 12 9 12 12 12
MIX HGT (KFT)...6.3 1.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.N W SW W W W SW W W W W W
TRANSP WIND SPD.12 12 13 12 13 13 15 13 12 10 10 9
VRATE KT-FT/1K..63 18 7 7 7 6 7 6 5 5 5 4
SMOKEDISPERSION.G P P P P P P P P P P P
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) UNTIL 1100, THEN
PARTLY CLOUDY (40-50 PERCENT) UNTIL 1300, THEN
MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER 1200 UNTIL
1300, THEN CHANCE OF SHOWERS AND THUNDERSTORMS
UNTIL 1500, THEN SHOWERS AND THUNDERSTORMS
LIKELY.
CWR.................2 PERCENT INCREASING TO 48 PERCENT.
CHANCE OF THUNDER...64 PERCENT.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH UNTIL 0800, THEN
NORTHWEST AROUND 5 MPH UNTIL 0900, THEN NORTH 5
TO 7 MPH UNTIL 1100, THEN 5 TO 13 MPH UNTIL
1400, THEN NORTHEAST 5 TO 12 MPH UNTIL 1700,
THEN NORTHWEST AROUND 6 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS AFTER 1200.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 2600 FT AGL
UNTIL 1100, THEN 5500 FT AGL UNTIL 1300, THEN
6900 FT AGL UNTIL 1700, THEN 2900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 11 MPH UNTIL 0900, THEN NORTH 8
TO 12 MPH UNTIL 1300, THEN SOUTHEAST 8 TO 11
MPH UNTIL 1500, THEN LIGHT UNTIL 1600, THEN
WEST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR UNTIL 1300, THEN
GOOD UNTIL 1400, THEN FAIR UNTIL 1500, THEN
POOR UNTIL 1600, THEN FAIR UNTIL 1700, THEN
POOR.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........60 56 52 67 52 43 43 64 73 73 77 77
WEATHER COV..... SCH CHC CHC LKY LKY LKY
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH CHC CHC LKY LKY LKY
CWR.............0 0 0 0 0 0 20 40 40 50 50 50
CHC OF THDR (%).0 0 0 10 10 0 10 10 50 60 60 60
TEMP............72 74 78 82 89 92 93 92 93 90 87 85
RH..............51 49 46 38 32 28 29 31 30 33 38 41
20 FT WIND DIR..W W NW N N N N NE NE NE NE NW
20 FT WIND SPD..6 6 5 5 6 7 8 8 8 7 6 6
20 FT WIND GUST.9 9 7 7 9 12 13 13 13 12 9 9
MIX HGT (KFT)...0.5 0.5 1.2 1.8 2.9 4.2 5.7 7.5 6.7 6.4 5.2 2.9
TRANSP WIND DIR.NW NW NW N N N N E SE SE W W
TRANSP WIND SPD.8 8 8 9 9 10 9 9 8 7 9 9
VRATE KT-FT/1K..4 4 8 15 24 38 46 60 47 39 41 23
SMOKEDISPERSION.P P P P P P F G F P F P
FORECASTER...BONNER
REQUESTED BY...C. BLINZLER
TYPE OF REQUEST...WILDFIRE
.TAG 2618319.0/BOU
.DELDT 07/26/26
.FORMATTERVERSION 2.0.0
.EMAIL METCOMDISPATCHER@SOUTHMETRO.ORG
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