000
FZPN03 KNHC 181515
HSFEP2

HIGH SEAS FORECAST 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI JUN 18 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES
MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W

SYNOPSIS VALID 1200 UTC FRI JUN 18.
24 HOUR FORECAST VALID 1200 UTC SAT JUN 19.
48 HOUR FORECAST VALID 1200 UTC SUN JUN 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM BLAS NEAR 16.0N 107.4W 999 MB AT 1500 UTC JUN 18
MOVING WNW OR 300 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER. 
SEAS 12 FT OR GREATER WITHIN 90 NM E SEMICIRCLE AND 60 NM W
SEMICIRCLE WITH SEAS TO 18 FT.
.24 HOUR FORECAST TROPICAL STORM BLAS NEAR 16.6N 109.7W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR 
GREATER WITHIN 90 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE WITH 
SEAS TO 16 FT.
.48 HOUR FORECAST TROPICAL DEPRESSION BLAS NEAR 16.9N 112.8W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER 
WITHIN 60 NM OF CENTER WITH SEAS TO 14 FT. 
.72 HOUR FORECAST TROPICAL DEPRESSION BLAS NEAR 17.0N 116.0W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION BLAS POST-TROP/REMNANT LOW
NEAR 16.5N 119.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION BLAS POST-TROP/REMNANT LOW
NEAR 16.0N 122.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 25 KT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN WARNINGS...WITHIN 240 NM SE AND 180 NM NW 
SEMICIRCLES OF TROPICAL STORM BLAS WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT. 
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 180 NM 
NE AND WITHIN 150 NM SW SEMICIRCLES OF TROPICAL STORM BLAS WINDS
20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 180 NM 
NW AND 90 NM SE SEMICIRCLES OF TROPICAL DEPRESSION BLAS WINDS 20 
TO 25 KT. SEAS 8 TO 12 FT.

.LOW NEAR 13N96W 1010 MB MOVING W NEAR 10 KT. WITHIN 180 NM E 
SEMICIRCLE E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST LOW NEAR 13N99W 1009 MB. WITHIN 120 NM NE 
SEMICIRCLE OF CENTER E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST LOW NEAR 13N101W 1008 MB. WITHIN 120 NM OF LOW 
WINDS 20 KT. SEAS 8 TO 9 FT.

.FROM 18N TO 21N W OF 130W NE TO E WINDS 20 KT. SEAS 8 FT. 
ELSEWHERE N OF 19N W OF 117W WINDS LESS THAN 20 KT. SEAS TO 8 FT 
IN N SWELL. 
.24 HOUR FORECAST N OF 27N E OF 123W TO THE COAST OF BAJA 
CALIFORNIA NW TO N WINDS 20 KT. SEAS 8 TO 10 FT IN NW SWELL. 
ELSEWHERE N OF 25N E OF 130W WINDS LESS THAN 20 KT. SEAS TO 9 FT 
IN N SWELL.
.48 HOUR FORECAST N OF 23N BETWEEN 117W AND 126W N TO NE WINDS 
20 KT. SEAS 8 TO 10 FT IN NW TO N SWELL. FROM 22N TO 25N W OF 
126W NE TO E WINDS TO 20 KT. SEAS TO 8 FT.

.FROM 09N TO 12N W OF 134W NE TO E WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 08N TO 12N W OF 135W NE TO E WINDS 20 KT. 
SEAS TO 9 FT IN NE WIND WAVES. FROM 15N TO 18N W OF 135W NE TO E 
WINDS TO 20 KT. SEAS TO 8 FT. ELSEWHERE S OF 10N AND NE OF LINE 
10N126W TO 00N138W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN SE 
SWELL.
.48 HOUR FORECAST FROM 09N TO 13N W OF 134W NE TO E WINDS TO 20 
KT. SEAS TO 8 FT.

.S OF 07N BETWEEN 80W AND 88W WINDS LESS THAN 20 KT. SEAS 8 TO 
10 FT IN S SWELL. S OF 06N BETWEEN 92W AND 104W WINDS LESS THAN 
20 KT. SEAS TO 9 FT IN S SWELL.
.24 HOUR FORECAST S OF 07N BETWEEN 81W AND 87W WINDS LESS THAN 
20 KT. SEAS TO 9 FT IN S SWELL. S OF 06N BETWEEN 95W AND 105W 
WINDS LESS THAN 20 KT. SEAS 8 FT IN S SWELL.
.48 HOUR FORECAST S OF 06N BETWEEN 82W AND 88W S TO SW WINDS TO 
20 KT. SEAS TO 8 FT. S OF 06N BETWEEN 105W AND 117W WINDS LESS 
THAN 20 KT. SEAS TO 8 FT IN S SWELL.

REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

CONVECTION VALID AS OF 1500 UTC FRI JUN 18...
.TROPICAL STORM BLAS...NUMEROUS STRONG WITHIN 120 NM S 
SEMICIRCLE. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM N 
SEMICIRCLE.

.LOW NEAR 13N96W...NUMEROUS MODERATE ISOLATED STRONG WITHIN 120 
NM NE QUADRANT AND SCATTERED MODERATE WITHIN 90 SW QUADRANT.

.SCATTERED MODERATE ISOLATED STRONG N OF 12N FROM 89W TO 92W. 

.SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 08N E OF 81W TO 
THE COAST OF COLOMBIA.

.INTERTROPICAL CONVERGENCE ZONE...AXIS 08N78W TO 07N95W THEN 
RESUMES FROM 11N106W TO 10N102W TO 08N120W TO 07N140W. SCATTERED 
MODERATE FROM 04N TO 06N BETWEEN 81W AND 91W. SIMILAR CONVECTION 
IS NOTED WITHIN 60 NM EITHER SIDE OF AXIS W OF 132W. 

$$
.FORECASTER GR. TROPICAL PREDICTION CENTER.