Hurricane Gordon

Forecast Advisory 28

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149
WTNT23 KNHC 172030
TCMAT3
HURRICANE HELENE FORECAST/ADVISORY NUMBER 22
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
2100 UTC SUN SEP 17 2006

HURRICANE CENTER LOCATED NEAR 21.2N 49.3W AT 17/2100Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT 8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB
EYE DIAMETER 25 NM
MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT.
64 KT....... 35NE 35SE 25SW 30NW.
50 KT....... 60NE 60SE 40SW 60NW.
34 KT.......150NE 125SE 90SW 125NW.
12 FT SEAS..275NE 200SE 200SW 250NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 21.2N 49.3W AT 17/2100Z
AT 17/1800Z CENTER WAS LOCATED NEAR 20.9N 49.0W

FORECAST VALID 18/0600Z 22.0N 50.3W
MAX WIND 95 KT...GUSTS 115 KT.
64 KT... 35NE 35SE 30SW 35NW.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...150NE 125SE 100SW 125NW.

FORECAST VALID 18/1800Z 22.8N 51.5W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 35NE 35SE 30SW 35NW.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...150NE 150SE 100SW 125NW.

FORECAST VALID 19/0600Z 23.1N 53.0W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 35NE 35SE 30SW 35NW.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...150NE 150SE 100SW 125NW.

FORECAST VALID 19/1800Z 23.5N 55.0W
MAX WIND 95 KT...GUSTS 115 KT.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...175NE 175SE 100SW 150NW.

FORECAST VALID 20/1800Z 24.5N 57.5W
MAX WIND 90 KT...GUSTS 110 KT.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...175NE 175SE 100SW 150NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 225 NM
ON DAY 4 AND 300 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 21/1800Z 27.1N 59.5W
MAX WIND 85 KT...GUSTS 105 KT.

OUTLOOK VALID 22/1800Z 30.5N 61.0W
MAX WIND 80 KT...GUSTS 100 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.2N 49.3W

NEXT ADVISORY AT 18/0300Z

$$
FORECASTER AVILA





340
WTNT22 KNHC 172034
TCMAT2
HURRICANE GORDON FORECAST/ADVISORY NUMBER 28
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072006
2100 UTC SUN SEP 17 2006

HURRICANE CENTER LOCATED NEAR 34.6N 52.4W AT 17/2100Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 983 MB
EYE DIAMETER 10 NM
MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT.
64 KT....... 20NE 20SE 20SW 20NW.
50 KT....... 50NE 50SE 40SW 40NW.
34 KT.......100NE 100SE 80SW 80NW.
12 FT SEAS..180NE 180SE 120SW 120NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 34.6N 52.4W AT 17/2100Z
AT 17/1800Z CENTER WAS LOCATED NEAR 34.0N 53.0W

FORECAST VALID 18/0600Z 36.3N 50.7W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 20SE 20SW 20NW.
50 KT... 50NE 50SE 40SW 40NW.
34 KT...100NE 100SE 80SW 80NW.

FORECAST VALID 18/1800Z 38.0N 46.2W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 20SE 20SW 20NW.
50 KT... 40NE 50SE 50SW 40NW.
34 KT... 90NE 100SE 100SW 80NW.

FORECAST VALID 19/0600Z 39.0N 40.0W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 30NE 40SE 40SW 20NW.
34 KT... 80NE 100SE 100SW 70NW.

FORECAST VALID 19/1800Z 39.7N 32.0W...BECOMING EXTRATROPICAL
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 50SE 40SW 0NW.
34 KT... 80NE 120SE 100SW 60NW.

FORECAST VALID 20/1800Z...ABSORBED BY FRONT

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.6N 52.4W

NEXT ADVISORY AT 18/0300Z

$$
FORECASTER MAINELLI/AVILA