Spot Forecast
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
806 FNUS75 KSLC 161242 FWSSLC Spot Forecast for South Willow Fire...USFS National Weather Service Salt Lake City UT 642 AM MDT Mon Sep 16 2024 Forecast is based on forecast start time of 0600 MDT on September 16. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Southerly flow will continue to strengthen today ahead of an approaching weather system, with stronger gusts beginning to surface around 1000. As this system approaching, increasing moisture will bring showers and a few thunderstorms around the general area by mid afternoon, with a 40% chance that these storms move over the fire area. Strong outflow winds and lightning will be the main threats, with brief heavy rain possible. This storm system will cross the area tonight, bring much cooler air for Tuesday, along with a continued threat for showers and thunderstorms. .TODAY... Sky/weather.........Mostly cloudy (70-80 percent cloud cover). A chance of showers and thunderstorms, mainly after 1400. Chance of pcpn......40 percent. LAL.................1 until 1400, then 3. Max temperature.....73-76. Min humidity........22-25 percent. Wind (20 ft)........South 6-10 mph with gusts 15-20 mph increasing to 12-18 mph with gusts 28-35 mph after 1000. Gusty and erratic winds to 50 mph expected near thunderstorms in the afternoon. Transport winds.....South 35 mph. Haines Index........4. .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent cloud cover) with rain showers likely and a chance of thunderstorms in the evening, then becoming partly cloudy (60-70 percent cloud cover) with a chance of rain showers and a slight chance of thunderstorms overnight. Chance of pcpn......60 percent. LAL.................3 until 2400, then 2. Min temperature.....50-53. Max humidity........44-47 percent. Wind (20 ft)........South 6-10 mph. Gusty and erratic winds to 30 mph possible near thunderstorms. Transport winds.....South 30 mph in the evening decreasing to 15 mph overnight. Haines Index........3. .TUESDAY... Sky/weather.........Partly cloudy (60-70 percent cloud cover). A chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Chance of pcpn......50 percent. LAL.................1 until 1200, then 2. Max temperature.....Around 60. Min humidity........41-44 percent. Wind (20 ft)........South 8-14 mph with gusts around 20 mph shifting to the southwest after 1200. Gusty and erratic winds to 40 mph possible near thunderstorms in the afternoon. Transport winds.....Southwest around 25 mph. Haines Index........3. $$ Forecaster...Seaman Requested by...Wiatt Charlesworth Type of request...WILDFIRE .TAG 2422385.2/SLC .DELDT 09/15/24 .FormatterVersion 2.0.0 .EMAIL wiatt.charlesworth@usda.gov