288  
FNUS76 KOTX 192333  
FWSOTX  
 
SPOT FORECAST FOR EWIFTA THURS...DNR  
NATIONAL WEATHER SERVICE SPOKANE WA  
433 PM PDT WED JUN 19 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 PDT ON JUNE 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A FRONT WILL BE PUSHING THROUGH THE REGION ON THURSDAY, WITH A  
FAIR AMOUNT OF MOISTURE AND SOME INSTABILITY. THIS WILL BRING  
INCREASING SHOWER CHANCES THROUGH THE DAY, BECOMING LIKELY TOWARD  
MIDDAY TO EARLY AFTERNOON. THIS WILL BE ACCOMPANIED BY A CHANCE  
OF THUNDERSTORMS. THESE COULD PRODUCE SOME BRIEF HEAVY DOWNPOURS,  
GUSTY AND ERRATIC WINDS AND LIGHTNING. THE THREAT WILL WANE  
WITH SUNSET WITH DRIER WEATHER DEVELOPING FOR THE OVERNIGHT. AN  
UPPER SYSTEM PASSING FRIDAY WILL CONTINUE TO PROVIDE ISOLATED  
TO SCATTERED SHOWER CHANCES. AFTERNOON TEMPERATURES ARE EXPECTED  
TO BE COOLER THAN NORMAL FOR THIS TIME OF YEAR, ESPECIALLY  
THURSDAY.  
 
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING CLOUDY. A CHANCE OF  
RAIN SHOWERS IN THE MORNING. OCCASIONAL RAIN  
SHOWERS LIKELY IN THE AFTERNOON WITH A  
SLIGHT CHANCE OF THUNDERSTORMS.  
CWR.................30 PERCENT.  
LAL.................2.  
MAX TEMPERATURE.....60.  
MIN HUMIDITY........41 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6 TO 9 MPH. GUSTS TO 20 MPH  
IN THE AFTERNOON. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
AFTERNOON.  
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 5000 FT  
AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST AROUND 12 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY WITH  
A SLIGHT CHANCE OF THUNDERSTORMS BEFORE 7 PM.  
THEN A SLIGHT CHANCE OF RAIN SHOWERS BEFORE  
MIDNIGHT.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....44.  
MAX HUMIDITY........96 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 6 MPH WITH GUSTS  
TO 12 MPH IN THE EVENING BECOMING  
VARIABLE 2 TO 5 MPH OVERNIGHT. GUSTY AND  
ERRATIC WINDS POSSIBLE NEAR THUNDERSTORMS  
BEFORE 7 PM.  
MIXING HEIGHT.......800 FT AGL IN THE EVENING...BECOMING NEAR  
SURFACE OVERNIGHT.  
TRANSPORT WINDS.....WEST AROUND 5 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS.  
CWR.................5 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....68.  
MIN HUMIDITY........37 PERCENT.  
WIND (20 FT)........WEST WINDS 5 TO 6 MPH. GUSTS TO 10 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 4900 FT  
AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 

 
FORECASTER...JC  
REQUESTED BY...JESSICA WALSTON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1911110.0/OTX  
.DELDT 06/19/19  
.FORMATTERVERSION 1.0.26  
.EMAIL JESSICA.WALSTON@DNR.WA.GOV  
 
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