101  
FNUS75 KREV 171140  
FWSREV  
 
SPOT FORECAST FOR MANZANITA M7 PILE BURN...NV-HTF  
NATIONAL WEATHER SERVICE RENO NV  
440 AM PDT MON MAR 17 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON MARCH 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL  
WEATHER SERVICE IN RENO.  
   
DISCUSSION
 
 
* CHANCES FOR SNOW SHOWERS AT IGNITION WILL BE AROUND 90%, WITH  
CHANCES DROPPING TO 60-70% IN THE AFTERNOON.  
 
* SOUTHWEST WINDS WILL BECOME WESTERLY WITH GUSTS TO 30-35 MPH  
NEAR THE BURN SITE.  
 
* TUESDAY WILL BRING BACK DRY CONDITIONS AND LIGHTER WINDS, WHICH  
LASTS THROUGH WEDNESDAY. UNSETTLED WEATHER MAKES A RETURN LATE  
WEDNESDAY.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LATE IN THE  
MORNING, THEN CHANCE OF SNOW SHOWERS IN THE  
AFTERNOON.  
TEMPERATURE.........34 AT IGNITION...MAX 34-37.  
RH..................61% AT IGNITION...MIN 57-62%.  
20-FOOT WINDS.......WINDS WEST AT 17 MPH AT IGNITION...OTHERWISE  
SOUTHWEST WINDS 12-17 MPH WITH GUSTS TO AROUND  
30 MPH.  
CHC WETTING RAIN....95% DECREASING TO 40% IN THE AFTERNOON.  
MIXING HEIGHT.......2700-3700 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH INCREASING TO AROUND 30 MPH  
LATE IN THE AFTERNOON.  
VENTILATION.........GOOD TO VERY GOOD.  
 
TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........90 90 65 71 71  
WEATHER COV.....DEFNTE DEFNTE CHANCE LIKELY LIKELY  
WEATHER TYPE....SNSHWR SNSHWR SNSHWR SNSHWR SNSHWR  
TSTM COV........  
CWR.............100 100 40 40 40  
TEMP............34 34 32 34 31  
RH..............61 59 66 63 60  
20 FT WIND......W 17 W 17 SW 17 W 15 W 15  
20 FT WIND GUST.30 30 30 25 25  
MX HT MSL (KFT).2.3 2.3 3.2 3.7 3.7  
TRANSPORT WIND..W 20 W 20 SW 25 SW 30 SW 30  
VRATE KT-FT/1K..44 44 75 92 92  
VENTRATE CAT....FAIR FAIR GOOD GOOD GOOD  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. SNOW  
SHOWERS LIKELY IN THE EVENING, THEN SLIGHT  
CHANCE OF SNOW SHOWERS OVERNIGHT.  
TEMPERATURE.........MIN 17-19.  
RH..................MAX 60-65%.  
20-FOOT WINDS.......WEST WINDS 12-17 MPH WITH GUSTS TO AROUND 30  
MPH DECREASING TO 7-8 MPH.  
CHC WETTING RAIN....20% DECREASING TO 10% OVERNIGHT.  
MIXING HEIGHT.......3000-3200 FT AGL EARLY IN THE EVENING.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO 10-15 MPH IN  
THE LATE EVENING AND OVERNIGHT.  
VENTILATION.........GOOD TO POOR.  
 
TIME (PDT) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM  
SKY (%).........73 73 57 41 41 31  
WEATHER COV.....LIKELY LIKELY CHANCE  
WEATHER TYPE....SNSHWR SNSHWR SNSHWR NONE NONE NONE  
TSTM COV........  
CWR.............40 40 40 10 10 10  
TEMP............30 26 25 25 25 23  
RH..............59 60 60 59 60 60  
20 FT WIND......W 17 W 17 W 13 W 12 W 12 W 8  
20 FT WIND GUST.30 30 20 20 20 15  
MX HT MSL (KFT).3.1 3.1 0.4 0.4 0.4 0.4  
TRANSPORT WIND..W 25 W 25 W 15 W 10 W 10 W 10  
VRATE KT-FT/1K..65 65 5 4 4 4  
VENTRATE CAT....GOOD GOOD POOR POOR POOR POOR  
   
TUESDAY
 
 
SKY/WEATHER.........SUNNY.  
TEMPERATURE.........MAX 38-40.  
RH..................MIN 35-40%.  
20-FOOT WINDS.......UPSLOPE 3-7 MPH.  
CHC WETTING RAIN....0%.  
MIXING HEIGHT.......600 FT AGL INCREASING TO 2400-3400 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
VENTILATION.........POOR TO GOOD.  
 
TIME (PDT) 5 AM 7 AM 9 AM 11 AM 1 PM 3 PM  
SKY (%).........15 15 10 5 5 3  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............0 0 0 0 0 0  
TEMP............21 19 23 31 34 37  
RH..............56 56 47 40 39 41  
20 FT WIND......W 6 W 6 W 3 W 2 W 2 W 5  
20 FT WIND GUST.10 10 5 5 5 10  
MX HT MSL (KFT).0.5 0.5 1.0 2.2 2.2 3.2  
TRANSPORT WIND..W 10 W 10 W 5 NW 10 NW 10 NW 10  
VRATE KT-FT/1K..4 4 6 18 18 32  
VENTRATE CAT....POOR POOR POOR POOR POOR POOR  
 

 
FORECASTER...RICHARDS/JOHNSTON  
REQUESTED BY...ANGELO DI MARIO  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2506647.0/REV  
.DELDT 03/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL ANGELO.A.DIMARIO@GMAIL.COM,ROSENDO.ALVAREZ@USDA.GOV  
 
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