000
FZPN03 KNHC 201550
HSFEP2

HIGH SEAS FORECAST 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 20 2007
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

PAN PAN

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

SYNOPSIS VALID 1200 UTC THU SEP 20
24 HOUR FORECAST VALID 1200 UTC FRI SEP 21
48 HOUR FORECAST VALID 1200 UTC SAT SEP 22
 
.WARNINGS.
...HURRICANE WARNING...
.HURRICANE IVO NEAR 17.1N 112.8W 987 MB AT 1500 UTC SEP 20
MOVING NNW OR 330 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR 
GREATER WITHIN 75 NM NE QUADRANT...65 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 60 NM NW QUADRANT WITH SEAS TO 24 FT.
.24 HOUR FORECAST HURRICANE IVO NEAR 18.8N 113.3W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM OF CENTER EXCEPT 60 NM SW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 90 NM NE QUADRANT...75 NM SE QUADRANT...45 NM SW 
QUADRANT...AND 75 NM NW QUADRANT WITH SEAS TO 27 FT.
.48 HOUR FORECAST HURRICANE IVO NEAR 20.8N 112.6W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 90 NM E SEMICIRCLE...65 NM SE QUADRANT...AND 
75 NM NW QUADRANT WITH SEAS TO 26 FT.
.72 HOUR FORECAST TROPICAL STORM IVO NEAR 22.5N 111.5W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IVO NEAR 24.0N 111.0W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION IVO NEAR 25.5N 110.5W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

.SYNOPSIS AND FORECAST.
.TROPICAL DEPRESSION THIRTEEN E NEAR 17.9N 130.2W 1008 MB AT
1500 UTC SEP 20 MOVING WNW OR 290 DEG AT 5 KT. MAXIMUM SUSTAINED
WINDS 25 KT GUSTS 35 KT. WITHIN 240 NM N AND 120 NM S SEMICIRCLES
WINDS 20 TO 25 KT SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROPICAL DEPRESSION E NEAR 17.5N 130.6W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 180 NM NW 
SEMICIRCLE WINDS 20 TO 25 KT SEAS 8 TO 11 FT. WITHIN 120 NM SE 
SEMICIRCLE WINDS 20 KT SEAS TO 9 FT.
.48 HOUR FORECAST REMNANT LOW NEAR 17.5N 129.1W. MAXIMUM 
SUSTAINED WINDS 20 KT GUSTS 30 KT. WITHIN 150 NM NW SEMICIRCLE 
WINDS 20 TO 25 KT SEAS 8 TO 10 FT. WITHIN 75 NM SE SEMICIRCLE 
WINDS 20 KT SEAS TO 9 FT.
.72 HOUR FORECAST REMNANT LOW NEAR 18.0N 127.5W. MAXIMUM 
SUSTAINED WINDS 20 KT GUSTS 30 KT.

.EXCEPT AS NOTED IN IVO WARNINGS...WITHIN 180 NM N SEMICIRCLE AND
120 NM S SEMICIRCLE WINDS 20 TO 33 KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN IVO WARNINGS...WITHIN 150 
NM OF CENTER EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT SEAS 8 
TO 12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN IVO WARNINGS...WITHIN 120
OF CENTER EXCEPT 75 NM SW QUADRANT WINDS 20 TO 33 KT SEAS 8 TO 
12 FT.

.ELSEWHERE FROM 15N TO 28N W OF 124W NE WINDS 20 TO 25 KT SEAS 8 
TO 10 FT IN NE SWELL.
.24 HOUR FORECAST ELSEWHERE FROM 16N TO 25N W OF 124W NE WINDS 
20 TO 25 KT SEAS 8 TO 11 FT IN NE SWELL. N OF 28N W OF 125W N TO 
NE WINDS 20 KT SEAS 8 TO 12 FT IN N SWELL.
.48 HOUR FORECAST ELSEWHERE FROM 16N TO 24N W OF 125W NE WINDS 
20 KT SEAS TO 9 FT. N OF 28N W OF 128W N TO NE WINDS 20 KT SEAS 
9 TO 12 FT IN N SWELL. ELSEWHERE N OF 14N W OF 119W WINDS LESS
THAN 20 KT SEAS 8 TO 10 FT IN N AND NE SWELL...HIGHEST N OF 26N.

.WITHIN 30 NM EITHER SIDE OF LINE 16N95W 14N96W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS TO 20 KT SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS LESS THAN 20 KT SEAS LESS THAN 8 FT.

.FROM 3N TO 8N BETWEEN 84W AND 108W S TO SW WINDS TO 20 KT SEAS 
TO 8 FT IN S SWELL. FROM 3N TO 8N BETWEEN 108W AND 130W SE TO S 
WINDS TO 20 KT SEAS TO 9 FT IN S TO SW SWELL.
.24 HOUR FORECAST S OF 6N BETWEEN 85W AND 100W S TO SW WINDS TO 
20 KT SEAS TO 8 FT IN S SWELL. S OF 8N BETWEEN 100W AND 132W SE 
TO S WINDS TO 20 KT SEAS 8 TO 10 FT IN S TO SW SWELL.
.48 HOUR FORECAST S OF 8N BETWEEN 90W AND 102W S TO SW WINDS 20 
KT SEAS TO 9 FT IN S SWELL. S OF 8N BETWEEN 102W AND 130W SE TO 
S WINDS 20 KT SEAS 8 TO 10 FT PRIMARILY IN SW SWELL.

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

CONVECTION VALID 1530 UTC THU SEP 20...
HURRICANE IVO...NUMEROUS MODERATE TO STRONG WITHIN 90 NM SE AND 
60 NM NW SEMICIRCLES. SCATTERED MODERATE ISOLATED STRONG WITHIN 
150 NM N OF CENTER.

TROPICAL DEPRESSION THIRTEEN-E...NO SIGNIFICANT CONVECTION IS 
NOTED.

SCATTERED MODERATE WITHIN 30 NM OF LINE 5N80W 7N83W 8N84W.

INTERTROPICAL CONVERGENCE ZONE...8N78W 11N90W 10N100W 16N110W
11N115W 17N122W 12N140W. SCATTERED MODERATE TO STRONG WITHIN 
60 NM OF AXIS BETWEEN 130W AND 137W. SCATTERED MODERATE WITHIN
120 NM N OF AXIS BETWEEN 94W AND 1010W...AND WITHIN 30 NM OF
THE AXIS BETWEEN 121W AND 124W. SCATTERED MODERATE S OF THE AXIS 
WITHIN 45 NM OF 11N107W.

$$
FORECASTER AGUIRRE
TROPICAL PREDICTION CENTER
TROPICAL ANALYSIS AND FORECAST BRANCH