960 FNUS75 KTWC 292241 FWSTWC Spot Forecast for Jacobson...Coronado National Forest National Weather Service Tucson AZ 341 PM MST Thu May 29 2025 Forecast is based on forecast start time of 0600 MST on May 30. .DISCUSSION... Increasing moisture Friday through the weekend. Winds through Saturday morning will generally be terrain driven during the overnight and morning hours, primarily downslope/downvalley through sunrise, then becoming upslope/upvalley. Winds become generally easterly Friday and Saturday afternoon while ushering in modest moisture adequate for cloud-buildups and an isolated potential for thunderstorms both days. Friday is the best day for a chance of dry thunderstorms while Saturday there is a chance for both wet and dry thunderstorms as there will be more moisture in the area. Moisture remains in place through the weekend with increasing chances for showers and thunderstorms, with the highest probabilities for wetting rain coming Sunday. .FRIDAY... Sky/weather.........Mostly sunny. Slight chance of dry thunderstorms late in the afternoon. Chance of pcpn......20 percent. Max temperature.....79-82 degrees. Min humidity........10-13 percent. 20-foot winds.......Southwest (downslope) 5 to 10 mph early in the morning becoming east to northeast (upslope) after 0800, then south to southwest 10 to 15 mph with gusts up to 20 mph in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......1800 ft AGL increasing to 14800 ft AGL. Transport winds.....Northwest around 9 knots shifting to the southeast 7 to 8 knots late in the afternoon. TIME (MST) 6 AM 9 AM NOON 3 PM Sky (%).........71 47 66 29 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 10 10 Temp............61 72 77 80 RH..............17 14 12 11 20 FT wind......SW 8G11 NE 7G11 NE 6G12 SW 8G20 Mix hgt (ft)....600 3300 9100 14400 Transport wind..NW 9 NE 10 SE 10 SE 12 .FRIDAY NIGHT... Sky/weather.........Mostly cloudy becoming partly cloudy. Slight chance of dry thunderstorms early in the evening. Chance of pcpn......20 percent decreasing to 10 percent late in the evening. Min temperature.....61-64 degrees. Max humidity........38-41 percent. 20-foot winds.......Southwest winds 6 to 11 mph shifting to the west 10 to 15 mph in the evening gusting to 20 mph. Gusty and erratic winds expected near thunderstorms. Mixing height.......9000 ft AGL decreasing to 100 ft AGL. Transport winds.....Southwest around 8 knots shifting to the north to northwest around 13 knots late in the evening. TIME (MST) 6 PM 9 PM MIDNGT 3 AM Sky (%).........58 52 59 61 Weather cov..... S CHC Weather type.... RNSHWR NONE NONE Tstm cov........S CHC CWR.............20 20 10 10 Temp............77 68 64 62 RH..............13 20 28 36 20 FT wind......SW 7G13 W 12G18 W 15G19 W 15G19 Mix hgt (ft)....9000 100 100 100 Transport wind..SW 8 N 13 S 16 W 16 .SATURDAY... Sky/weather.........Partly cloudy. Slight chance of thunderstorms. Chance of pcpn......30 percent. Max temperature.....77-80 degrees. Min humidity........20-23 percent. 20-foot winds.......Northwest winds 11 to 16 mph shifting to the east 8 to 13 mph with gusts to around 18 mph in the morning. Shifting to the southeast in the afternoon. Gusty and erratic winds expected near thunderstorms. Mixing height.......Increasing to 13500 ft AGL. Transport winds.....North 14 knots in the late morning and early afternoon, then shifting to the southeast late in the afternoon. TIME (MST) 6 AM 9 AM NOON 3 PM Sky (%).........48 35 53 53 Weather cov..... Weather type....NONE NONE Tstm cov........ S CHC S CHC CWR.............10 10 30 30 Temp............63 71 75 77 RH..............35 28 23 21 20 FT wind......NW 13G18 E 11G18 E 9G17 SE 8G16 Mix hgt (ft)....600 3000 9400 15800 Transport wind..N 14 N 12 E 12 SE 12 .FORECAST DAYS 3 THROUGH 5... .SUNDAY... Mostly cloudy. Showers likely and slight chance of thunderstorms. Lows around 60. Highs in the lower 70s. West winds around 10 mph. .MONDAY... Mostly cloudy. Showers and slight chance of thunderstorms. Lows in the mid 50s. Highs around 70. West winds around 11 mph. .TUESDAY... Mostly clear. Lows in the upper 50s. Highs in the lower 70s. Southwest winds around 11 mph. $$ Forecaster...MALARKEY Requested by...Chris Stetson Type of request...WILDFIRE .TAG 2514808.2/TWC .DELDT 05/29/25 .FormatterVersion 2.0.0 .EMAIL christopher.stetson@usda.gov,samuel.long@usda.gov Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson