789  
FZPQ50 PGUM 192004  
SRFGUM  
 
SURF ZONE FORECAST FOR THE MARIANA ISLANDS  
NATIONAL WEATHER SERVICE TIYAN GU  
604 AM CHST WED NOV 20 2019  
   
SYNOPSIS
 
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG NORTH  
AND EAST FACING REEFS OF THE MARIANAS THROUGH FRIDAY NIGHT. SURF WILL  
THEN BUILD WITH THE RISK OF RIP CURRENTS BECOMING HIGH ALONG EAST  
FACING REEFS. THERE WILL BE A MODERATE RISK OF LIGHTNING THURSDAY  
THROUGH FRIDAY.  
 

 
 
GUZ001>004-201115-  
GUAM-ROTA-TINIAN-SAIPAN-  
604 AM CHST WED NOV 20 2019  
 
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM WEDNESDAY  
THROUGH 600 PM THURSDAY  
   
TODAY THROUGH THURSDAY (6 AM TO 6 PM THURSDAY)
 
 
COASTAL WINDS.......EAST AT 10 TO 20 MPH, TURNING NORTHEAST THURSDAY.  
SURF ALONG NORTH FACING REEFS............3 TO 5 FEET.  
SURF ALONG EAST FACING REEFS............6 TO 8 FEET.  
SURF ALONG SOUTH FACING REEFS............2 TO 4 FEET.  
SURF ALONG WEST FACING REEFS............1 TO 2 FEET.  
PRIMARY SWELL...............EAST AT 4 TO 6 FEET.  
PRIMARY PERIOD..............9 SECONDS.  
SECONDARY SWELL...............NORTH AT AROUND 3 FEET.  
SECONDARY PERIOD..............14 SECONDS.  
 
RIP CURRENT RISK.....MODERATE. WAVE CONDITIONS SUPPORT STRONGER OR  
MORE FREQUENT RIP CURRENTS. ALWAYS HAVE A  
FLOTATION DEVICE WITH YOU IN THE WATER.  
 
SEA SURFACE TEMPERATURE AT RITIDIAN BUOY...84 DEGREES.  
MAXIMUM AFTERNOON HEAT INDEX...........AROUND 100.  
   
OUTLOOK
 
LITTLE CHANGE THURSDAY NIGHT. SURF WILL BEGIN INCREASING  
FRIDAY ALONG NORTH AND EAST FACING REEFS.  
 
TIDE INFORMATION FOR THE NEXT 36 HOURS...  
 
AT APRA HARBOR, GUAM...  
LOW TIDE -0.1 FEET AT 7:13 AM WEDNESDAY  
HIGH TIDE 2.4 FEET AT 2:49 PM WEDNESDAY  
LOW TIDE 1.4 FEET AT 8:51 PM WEDNESDAY  
HIGH TIDE 1.8 FEET AT 1:16 AM THURSDAY  
LOW TIDE 0.1 FEET AT 8:18 AM THURSDAY  
HIGH TIDE 2.5 FEET AT 3:35 PM THURSDAY  
 
AT ROTA ISLAND...  
LOW TIDE -0.1 FEET AT 7:07 AM WEDNESDAY  
HIGH TIDE 2.3 FEET AT 2:46 PM WEDNESDAY  
LOW TIDE 1.3 FEET AT 8:45 PM WEDNESDAY  
HIGH TIDE 1.7 FEET AT 1:13 AM THURSDAY  
LOW TIDE 0.1 FEET AT 8:12 AM THURSDAY  
HIGH TIDE 2.3 FEET AT 3:32 PM THURSDAY  
 
AT TINIAN ISLAND...  
LOW TIDE -0.0 FEET AT 6:50 AM WEDNESDAY  
HIGH TIDE 1.8 FEET AT 2:47 PM WEDNESDAY  
LOW TIDE 0.5 FEET AT 8:28 PM WEDNESDAY  
HIGH TIDE 1.4 FEET AT 1:14 AM THURSDAY  
LOW TIDE 0.0 FEET AT 7:55 AM THURSDAY  
HIGH TIDE 1.8 FEET AT 3:33 PM THURSDAY  
 
AT TANAPAG HARBOR, SAIPAN...  
LOW TIDE 0.0 FEET AT 7:21 AM WEDNESDAY  
HIGH TIDE 2.2 FEET AT 3:05 PM WEDNESDAY  
LOW TIDE 1.3 FEET AT 9:17 PM WEDNESDAY  
HIGH TIDE 1.6 FEET AT 1:21 AM THURSDAY  
LOW TIDE 0.2 FEET AT 8:28 AM THURSDAY  
HIGH TIDE 2.3 FEET AT 3:50 PM THURSDAY  
 

 
 
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