Tuesday, September 21, 2010

Forecast Positions for Igor's Northern Adventure (NHC Fcst/Adv #54)

HURRICANE CENTER LOCATED NEAR 46.2N 52.8W AT 21/1500Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 40 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 952 MB
MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT.
64 KT....... 75NE 50SE 60SW 75NW.
50 KT.......200NE 200SE 150SW 120NW.
34 KT.......400NE 350SE 350SW 300NW.
12 FT SEAS..550NE 750SE 995SW 350NW.
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 46.2N 52.8W AT 21/1500Z
AT 21/1200Z CENTER WAS LOCATED NEAR 44.8N 53.8W

FORECAST VALID 22/0000Z 50.2N 49.4W...POST-TROP/EXTRATROP
MAX WIND 70 KT...GUSTS 85 KT.
64 KT...150NE 180SE 180SW 150NW.
50 KT...660NE 270SE 300SW 360NW.
34 KT...720NE 600SE 500SW 750NW.

FORECAST VALID 22/1200Z 55.3N 48.5W...POST-TROP/EXTRATROP
MAX WIND 70 KT...GUSTS 85 KT.
64 KT...350NE 0SE 180SW 150NW.
50 KT...420NE 270SE 270SW 240NW.
34 KT...450NE 650SE 570SW 720NW.

FORECAST VALID 23/0000Z 59.8N 51.6W...POST-TROP/EXTRATROP
MAX WIND 65 KT...GUSTS 80 KT.
64 KT...150NE 0SE 0SW 0NW.
50 KT...240NE 180SE 120SW 180NW.
34 KT...500NE 800SE 240SW 450NW.

FORECAST VALID 23/1200Z 62.7N 57.8W...POST-TROP/EXTRATROP
MAX WIND 50 KT...GUSTS 60 KT.
50 KT...180NE 180SE 0SW 0NW.
34 KT...270NE 360SE 360SW 220NW.

FORECAST VALID 24/1200Z 63.5N 61.0W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 0NE 150SE 240SW 0NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 200 NM ON DAY 4 AND 250 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 25/1200Z 62.0N 60.5W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.

OUTLOOK VALID 26/1200Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 46.2N 52.8W