Spot Forecast
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
456 FNUS75 KPSR 151900 FWSPSR Spot Forecast for Siphon...AZ-TNF National Weather Service Phoenix AZ 1200 PM MST Sun Sep 15 2024 Forecast is based on forecast start time of 0900 MST on September 15. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... With temperatures gradually cooling, humidity levels will increase through Monday resulting in chances for showers and thunderstorms with modest chances for wetting rainfall. There is a 50% chance of gusty outflow winds sweeping across the wildfire site late this afternoon and early evening as a result of storms south of the area. The best chances of wetting rain will arrive tonight through Monday morning. Much drier air will move into the region Tuesday though cooler temperatures will allow humidity levels to remain somewhat elevated. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. .REST OF TODAY... Sky/weather.........Sunny (10-20 percent). Slight chance of showers and thunderstorms in the afternoon. CWR.................10 percent. Max temperature.....Around 90. Min humidity........21-28 percent. Wind (20 ft)........Southwest winds 5 to 11 mph this afternoon. There is a 50% chance of strong south to southeast gusts in excess of 25 mph very late this afternoon from thunderstorm outflows. Gusty and erratic winds expected near thunderstorms. .TONIGHT... Sky/weather.........Partly cloudy (40-50 percent) then becoming mostly cloudy (50-60 percent). Chance of showers and thunderstorms through the night. CWR.................25 percent. Min temperature.....Around 71. Max humidity........55-65 percent. Wind (20 ft)........Southeast winds 6 to 11 mph with the potential for strong outflow gusts early in the evening. Winds becoming east 4 to 7 mph overnight. Gusty and erratic winds expected near thunderstorms through the overnight. .MONDAY... Sky/weather.........Partly sunny (45-55 percent). Chance of showers in the morning. Slight chance of thunderstorms through the day. CWR.................30 percent mainly in the morning. Max temperature.....Around 85. Min humidity........28-36 percent. Wind (20 ft)........East to southeast winds 3 to 7 mph in the morning becoming southwest winds 6 to 12 mph in the afternoon. Gusty and erratic winds expected near thunderstorms. $$ Forecaster...MO Requested by...Kurt Lehner Type of request...WILDFIRE .TAG 2422486.1/PSR .DELDT 09/15/24 .FormatterVersion 2.0.0 .EMAIL 2024.siphon@firenet.gov