880
FNUS75 KTWC 041200
FWSTWC
SPOT FORECAST FOR SANTA CATALINA PILES...USFS
NATIONAL WEATHER SERVICE TUCSON AZ
500 AM MST THU DEC 4 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON DECEMBER 04.
DISCUSSION
COOL AND DRY THE NEXT FEW DAYS WITH LIGHT TERRAIN
DRIVEN WINDS. MINIMUM RH VALUES WILL BE IN THE 38-42 PERCENT RANGE
BOTH TADAY AND FRIDAY WITH VERY GOOD NIGHTTIME RECOVERIES.
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....40-43 DEGREES.
MIN HUMIDITY........38-42 PERCENT.
20-FOOT WINDS.......NORTHEAST WINDS 3 TO 6 MPH SHIFTING TO THE SOUTHWEST
8 TO 12 MPH IN THE AFTERNOON.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WINDS.....EAST 6 KNOTS SHIFTING TO THE SOUTHEAST 3 TO 5 KNOTS.
TIME (MST) 7 AM 10 AM 1 PM 4 PM
SKY (%).........7 3 24 32
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
TEMP............29 36 41 39
RH..............53 41 40 43
20 FT WIND......NE 5 E 3 S 6G9 SW 8G12
MIX HGT (FT)....BLW100 BLW100 700 500
TRANSPORT WIND..E 6 E 7 SE 5 SE 3
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....30-33 DEGREES.
MAX HUMIDITY........53-56 PERCENT.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH IN THE EVENING BECOMING
NORTH 2 TO 4 MPH OVERNIGHT.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 KNOTS SHIFTING TO THE SOUTH
LATE IN THE EVENING.
TIME (MST) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........34 25 21 3
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
TEMP............34 33 34 32
RH..............52 49 49 54
20 FT WIND......SW 5G9 SW 5 SW 4 N 3
MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100
TRANSPORT WIND..N 4 E 5 S 5 S 4
FRIDAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....41-44 DEGREES.
MIN HUMIDITY........38-42 PERCENT.
20-FOOT WINDS.......NORTHEAST 2 TO 4 MPH BECOMING WEST 6 TO 9 MPH.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 7 KNOTS.
TIME (MST) 6 AM 9 AM NOON 3 PM
SKY (%).........9 23 11 3
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
TEMP............33 37 41 41
RH..............51 42 42 45
20 FT WIND......NE 2G4 S 3G6 SW 5G8 W 6G9
MIX HGT (FT)....BLW100 BLW100 100 200
TRANSPORT WIND..W 4 SW 3 W 5 NW 7
FORECASTER...RASMUSSEN
REQUESTED BY...JOSH GOLDSTEIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2526990.0/TWC
.DELDT 12/04/25
.FORMATTERVERSION 2.0.0
.EMAIL JOSH.GOLDSTEIN@USDA.GOV
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