Spot Forecast
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
898 FNUS75 KSLC 141213 FWSSLC Spot Forecast for Little Twist Fire...USFS National Weather Service Salt Lake City UT 613 AM MDT Sun Jul 14 2024 Forecast is based on forecast start time of 0600 MDT on July 14. If conditions become unrepresentative...contact the National Weather Service. ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS... .DISCUSSION...Enough moisture will remain in place for at least the next 5 days to support daily shower and thunderstorm activity. Showers and thunderstorms will develop over terrain each day during the late morning and early afternoon hours and continue into the early evening hours most days. Showers and thunderstorms will be capable of producing gusty and erratic winds. Activity will be mainly dry with some wet cores mixed in, with activity trending slightly wetter by late in the week and into next weekend. Other than outflow winds, not much day to day change in valley winds. Ridgetop winds largely follow transport winds each day. We will be watching for a trough to move through the Northern Rockies late in the week or into next weekend. Most models have this trough, but there is considerable uncertainty surrounding the timing, with some models even holding this trough off until early next week. .TODAY... Sky/weather.........Mostly sunny (10-20 percent cloud cover) then becoming partly cloudy (40-50 percent cloud cover). Rain showers likely and chance of thunderstorms early in the afternoon. Slight chance of dry thunderstorms in the afternoon. CWR.................10 percent. Chance of pcpn......60 percent. LAL.................1 until 1200, then 4 until 1500, then 6. Max temperature.....82-84 lower elevations, 73-76 higher elevations. Min humidity........21-24 percent lower elevations, 27-29 percent higher. Wind (20 ft)........Downslope/downvalley winds 2-7 mph becoming upslope/ upvalley 6-15 mph between 1000-1200. At ridgetop, west 5-12 mph increasing to 10-20 mph in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Transport winds.....Southwest 12 to 15 mph. Haines Index........5. .TONIGHT... Sky/weather.........Partly cloudy (40-50 percent cloud cover). Slight chance of dry thunderstorms early in the evening. CWR.................10 percent. Chance of pcpn......30 percent. LAL.................6 until 2100, then 1. Min temperature.....62-65 lower elevations, 58-62 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........West to northwest winds 3-9 mph. At ridgetop, west to northwest winds 7-16 mph. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....West 9 to 15 mph. Haines Index........5. .MONDAY... Sky/weather.........Partly sunny (60-70 percent cloud cover). Chance of showers and thunderstorms in the afternoon. CWR.................5 percent. Chance of pcpn......50 percent. LAL.................1 until 1200, then 4. Max temperature.....83-85 lower elevations, 74-77 higher elevations. Min humidity........19-22 percent lower elevations, 23-25 percent higher. Wind (20 ft)........Northwest winds 3-9 mph becoming west to northwest 3-12 mph by 1200. Gusty and erratic winds expected near thunderstorms in the afternoon. Transport winds.....West 12 to 15 mph. Haines Index........5. .MONDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent cloud cover). Chance of showers and thunderstorms in the evening. CWR.................5 percent. Chance of pcpn......30 percent. LAL.................4 until 2100, then 1. Min temperature.....62-65 lower elevations, 58-62 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........West to northwest winds 3-9 mph becoming downslope/ downvalley 2-8 mph between 2100-2200. At ridgetop, west to northwest 3-12 mph becoming north around 2400. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....West 9 to 15 mph becoming north after 2400. Haines Index........5. .TUESDAY... Sky/weather.........Partly cloudy (20-30 percent cloud cover) in the morning becoming mostly cloudy (60-70 percent cloud cover) in the afternoon. Chance of showers and thunderstorms in the afternoon. CWR.................5 percent. Chance of pcpn......40 percent. LAL.................1 until 1200, then 4. Max temperature.....82-84 lower elevations, 73-76 higher elevations. Min humidity........18-21 percent lower elevations, 21-23 percent higher. Wind (20 ft)........Downslope/downvalley winds 3-8 mph in the morning becoming upslope/upvalley 5-13 mph in the afternoon. At ridgetop, north winds 3-12 mph becoming west 7-15 mph in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Transport winds.....East 5 to 10 mph becoming west 8 to 16 mph in the afternoon. Haines Index........5. .TUESDAY NIGHT... Sky/weather.........Partly cloudy (40-50 percent cloud cover). Chance of showers and thunderstorms in the evening. CWR.................5 percent. Chance of pcpn......30 percent. LAL.................4 until 2100, then 1. Min temperature.....62-65 lower elevations, 58-62 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........Upslope/upvalley winds 5-15 mph becoming downslope/ downvalley winds 3-8 mph between 2100-2200. At ridgetop, west winds 7-15 mph becoming northeast overnight. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....Northwest 9 to 15 mph becoming east towards sunrise. Haines Index........5. .WEDNESDAY... Sky/weather.........Partly cloudy (20-30 percent cloud cover). becoming partly sunny (60-70 percent cloud cover) in the afternoon. Chance of showers and thunderstorms in the afternoon. CWR.................5 percent. Chance of pcpn......30 percent. LAL.................1 until 1200, then 2. Max temperature.....83-85 lower elevations, 74-77 higher elevations. Min humidity........19-22 percent lower elevations, 22-24 percent higher. Wind (20 ft)........Downslope/downvalley 3-8 mph becoming upslope/upvalley 5-13 mph in the afternoon. At ridgetop, northeast winds 6-15 mph. Gusty and erratic winds expected near thunderstorms in the afternoon. Transport winds.....East 5 to 10 mph in the morning becoming northeast 7 to 16 mph in the afternoon. Haines Index........6. .WEDNESDAY NIGHT... Sky/weather.........Mostly cloudy (50-60 percent cloud cover). Slight chance of showers and thunderstorms in the evening. Chance of pcpn......15 percent. LAL.................2 until 2100, then 1. Min temperature.....63-66 lower elevations, 59-63 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........Upslope/upvalley winds 3-9 mph becoming downslope/ downvalley late in the evening. At ridgetop, northeast winds 6-15 mph becoming southeast 4-9 mph overnight. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....Northeast 7 to 16 mph becoming southeast 5 to 10 mph towards sunrise. Haines Index........6. .THURSDAY... Sky/weather.........Partly cloudy (20-30 percent cloud cover) becoming mostly cloudy (60-70 percent cloud cover) in the afternoon. Showers and thunderstorms likely in the afternoon. CWR.................5 percent. Chance of pcpn......60 percent. LAL.................1 until 1200, then 2. Max temperature.....84-87 lower elevations, 75-78 higher elevations. Min humidity........19-22 percent lower elevations, 24-27 percent higher. Wind (20 ft)........Downslope/downvalley winds 3-8 mph becoming upslope/ upvalley 6-15 mph in the afternoon. At ridgetop, southeast winds 4-9 mph becoming west 7-16 mph in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Transport winds.....Southeast 5 to 10 mph becoming west 7 to 15 mph in the afternoon. Haines Index........5. .THURSDAY NIGHT... Sky/weather.........Partly cloudy (40-50 percent cloud cover). Slight chance of showers and thunderstorms in the evening. Chance of pcpn......15 percent. LAL.................2 until 2100, then 1. Min temperature.....63-66 lower elevations, 59-63 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........Upslope/upvalley winds 3-11 mph becoming downslope/ downvalley winds 3-9 mph overnight. At ridgetop, west winds 7-16 mph becoming east 5-11 mph overnight. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....West 7 to 15 mph becoming southeast to east overnight. Haines Index........5. .FRIDAY... Sky/weather.........Partly cloudy (30-40 percent cloud cover) in the morning becoming mostly cloudy (70-80 percent cloud cover) in the afternoon. Showers and thunderstorms likely in the afternoon. CWR.................5 percent. Chance of pcpn......60 percent. LAL.................1 until 1200, then 4. Max temperature.....85-88 lower elevations, 75-78 higher elevations. Min humidity........22-25 percent lower elevations, 27-30 percent higher. Wind (20 ft)........Downslope/downvalley winds 3-8 mph becoming upslope/ upvalley winds 4-12 mph in the late morning and afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Ridgetop winds similar to transport winds. Transport winds.....Southeast to east 7 to 15 mph becoming west in the afternoon. Haines Index........5. .FRIDAY NIGHT... Sky/weather.........Mostly cloudy (50-60 percent cloud cover). Chance of showers and thunderstorms. CWR.................10 percent. Chance of pcpn......30 percent. LAL.................4 until 2100, then 1. Min temperature.....63-66 lower elevations, 59-63 higher elevations. Max humidity........45-47 percent. Wind (20 ft)........Downslope/downvalley winds 3-9 mph becoming upslope/ upvalley 5-13 mph in the afternoon. At ridgetop, west winds 5-11 mph becoming east overnight. Gusty and erratic winds expected near thunderstorms early in the evening. Transport winds.....West 7 to 15 mph becoming east 6 to 13 mph overnight. Haines Index........5. .SATURDAY... Sky/weather.........Partly cloudy (40-50 percent cloud cover) in the morning then mostly cloudy (70-80 percent cloud cover) in the afternoon. Showers and thunderstorms likely in the afternoon. Chance of pcpn......60 percent. Max temperature.....84-87 lower elevations, 74-77 higher elevations. Min humidity........28-31 percent lower elevations, 31-35 percent higher. Wind (20 ft)........Downslope/downvalley winds 3-8 mph becoming upslope/ upvalley winds 6-16 mph in the late morning and afternoon. Ridgetop winds similar to transport winds. Transport winds.....East 6 to 13 mph becoming northwest 10 to 18 mph in the afternoon. Haines Index........5. $$ Forecaster...ADeSmet Requested by...Bo Robb Type of request...WILDFIRE .TAG 2417928.4/SLC .DELDT 07/14/24 .FormatterVersion 2.0.0 .EMAIL bo.robb@usda.gov