614  
FNUS70 PHFO 250014  
FWSHFO  
 
SPOT FORECAST FOR ELEVATED VOLCANO ACTIVITY...DOI-NPS  
NATIONAL WEATHER SERVICE HONOLULU HI  
214 PM HST THU MAY 24 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 HST ON MAY 24.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
BREEZY TRADE WINDS WILL CONTINUE INTO SATURDAY, AND WILL CONTINUE  
TO USHER ANY PLUME EMANATING FROM HALEMAUMAU TOWARD THE  
SOUTHWEST. SOME WEAKENING OF THE TRADE WIND FLOW IS EXPECTED OVER  
THE WEEKEND. SHOWERS ARE POSSIBLE THROUGH THE END OF THE WEEK,  
WITH AN UPTICK IN SHOWER ACTIVITY STARTING FRIDAY NIGHT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. HAZY. SCATTERED SHOWERS.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 55.  
MAX HUMIDITY........100 PERCENT.  
SURFACE WINDS.......NORTH WINDS 16 TO 19 MPH.  
TRANSPORT WINDS.....NORTHEAST AROUND 16 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY SUNNY. HAZY. SCATTERED SHOWERS.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 71.  
MIN HUMIDITY........55 PERCENT.  
SURFACE WINDS.......NORTHEAST WINDS 11 TO 16 MPH WITH GUSTS TO  
AROUND 24 MPH.  
TRANSPORT WINDS.....NORTHEAST AROUND 13 MPH.  
   
FRIDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. HAZY. SCATTERED SHOWERS IN THE  
EVENING. SHOWERS LIKELY AFTER MIDNIGHT.  
CHANCE OF PCPN......60 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 55.  
MAX HUMIDITY........100 PERCENT.  
SURFACE WINDS.......NORTH WINDS 11 TO 15 MPH.  
TRANSPORT WINDS.....NORTHEAST AROUND 13 MPH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. HAZY. SHOWERS LIKELY IN THE  
MORNING. SCATTERED SHOWERS IN THE AFTERNOON.  
CHANCE OF PCPN......70 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 71.  
MIN HUMIDITY........68 PERCENT.  
SURFACE WINDS.......NORTHEAST WINDS 10 TO 15 MPH.  
TRANSPORT WINDS.....NORTHEAST AROUND 14 MPH.  
 

 
FORECASTER...M BALLARD  
REQUESTED BY...NANCY PHILLIPE  
TYPE OF REQUEST...OTHER  
.TAG 1809536.13/HFO  
.DELDT 05/24/18  
.EMAIL NANCY_PHILLIPE@NPS.GOV  
 
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