357  
FNUS72 KNHC 271506  
FWSNHC  
 
SPOT FORECAST FOR SPOT FORECAST FOR USCG SAR RC_USCG...NWS NHC  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1006 AM EST THU DEC 27 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1500 UTC ON DECEMBER 27.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NWS  
NATIONAL HURRICANE CENTER/TROPICAL ANALYSIS AND FORECAST  
BRANCH AT (305)229-4425.  
   
DISCUSSION
 
 
STRENGTHENING HIGH PRESSURE N OF THE AREA WILL INCREASE WINDS  
AND BUILD SEAS THROUGH FRI. THE HIGH CENTER WILL SHIFT E AND  
WEAKEN AS A WEAK COLD FRONT STALLS OVER THE NW WATERS ON SAT NIGHT  
INTO SUN. A RIDGE WILL EXTEND FROM 29N65W TO CENTRAL FLORIDA  
ON MON. SEAS WILL BUILD FROM 5 TO 8 FT TO 6 TO 9 FT OVERNIGHT,  
AND FROM 8 TO 12 FT ON FRI.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........90 PERCENT.  
DEWPOINT............71.  
SURFACE WINDS EAST WINDS AROUND 22 KNOTS WITH GUSTS TO AROUND  
30 KNOTS.  
SWELL HEIGHT........EAST SWELL 1 FEET.  
WAVE HEIGHT.........8 FEET.  
WAVE PERIOD.........7 SECONDS.  
WAVE PERIOD.........7 SECONDS.  
WIND WAVE...........6 FEET.  
SEA SURFACE TEMP....81F.  
 
SKY (%).........0  
WEATHER COV.....  
WEATHER TYPE....NONE  
TSTM COV........  
TEMP............73  
DEWPOINT........71  
RH..............93  
SURFACE WIND....E 22G38  
SWELL HGT (FT)..E 1  
WAVE PERIOD (S).7  
WIND WAVE (FT)..6  
WAVE HEIGHT (FT)8  
SST (F).........81  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....AROUND 73.  
MAX HUMIDITY........93 PERCENT.  
DEWPOINT............71.  
SURFACE WINDS EAST WINDS 22 TO 24 KNOTS WITH GUSTS TO AROUND  
32 KNOTS.  
SWELL HEIGHT........NORTHEAST SWELL 1 FEET.  
WAVE HEIGHT.........10 FEET.  
WAVE PERIOD.........8 SECONDS.  
WAVE PERIOD.........8 SECONDS.  
WIND WAVE...........8 FEET.  
SEA SURFACE TEMP....81F  
 
TIME (UTC) 04 07 10 13  
SKY (%).........0 0 0 0  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
TEMP............74 74 74 73  
DEWPOINT........71 71 71 71  
RH..............92 90 92 93  
SURFACE WIND....E 22G38 E 23G39 E 23G39 E 23G39  
SWELL HGT (FT)..E 1 E 1 E 1 NE 2  
WAVE PERIOD (S).7 8 8 8  
WIND WAVE (FT)..6 8 8 8  
WAVE HEIGHT (FT)8 8 9 9  
SST (F).........81 81 81 81  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........87 PERCENT.  
DEWPOINT............70.  
SURFACE WINDS BREEZY. EAST WINDS UP TO 27 KNOTS WITH GUSTS TO  
AROUND 36 KNOTS.  
SWELL HEIGHT........EAST SWELL 3 FEET.  
WAVE HEIGHT.........12 FEET.  
WAVE PERIOD.........9 SECONDS.  
WAVE PERIOD.........9 SECONDS.  
WIND WAVE...........8 FEET.  
SEA SURFACE TEMP....81F  
 
TIME (UTC) 04 07 10 13  
SKY (%).........0 0 0 0  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
TEMP............73 73 71 70  
DEWPOINT........71 71 71 70  
RH..............93 93 98 100  
SURFACE WIND....E 24G40 E 25G42 E 27G45 E 26G43  
SWELL HGT (FT)..NE 2 NE 3 NE 3 E 4  
WAVE PERIOD (S).8 8 8 9  
WIND WAVE (FT)..8 8 8 8  
WAVE HEIGHT (FT)10 10 11 12  
SST (F).........81 81 81 81  
 

 
FORECASTER...NELSON/LEVINE  
REQUESTED BY...SANTIAGO  
TYPE OF REQUEST...MARINE  
.TAG 1819313.0/NHC  
.DELDT 12/27/18  
.EMAIL SSJCC@USCG.MIL  
 
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