NWS ocean prediction center Washington DC
2230 UTC Thu Nov 20 2008
Ccode/1:31:04:01:00/aow/NWS/ccode
superseded by next issuance in 6 hours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
North Atlantic north of 31n to 67n and west of 35w
Synopsis valid 1800 UTC Nov 20.
24 hour forecast valid 1800 UTC Nov 21.
48 hour forecast valid 1800 UTC Nov 22.
.Warnings.
...Storm Warning...
.Low 49n62w 982 mb will move N 25 kt. Front extends from 50n55w
to 46n52w to 35n50w. Within 360 nm E of front N of 46n winds 40
to 50 kt. Seas 12 to 21 ft. Elsewhere between 300 nm and 840 nm
N quadrant and 720 nm E of front winds 25 to 40 kt. Seas 9 to 14
ft.
.24 hour forecast low 60n59w 975 mb. Within 300 nm NE and 180 nm
NW quadrants winds 40 to 50 kt. Seas 15 to 23 ft. Elsewhere
within 420 nm se and 300 nm S quadrants winds 25 to 40 kt. Seas
10 to 15 ft.
.48 hour forecast low 64n55w 987 mb. Within 360 nm S semicircle
winds 35 to 45 kt. Seas 12 to 20 ft. Elsewhere NW of a line from
54n55w to 55n35w winds 25 to 40 kt. Seas 10 to 17 ft.
...Storm Warning...
.24 hour forecast low 40n62w 1009 mb. Within 300 nm E and S and
240 nm W quadrants winds 20 to 30 kt. Seas 8 to 12 ft.
.30 hour forecast low 39n60w 1001 mb. Within 300 nm S semicircle
winds 35 to 45 kt. Seas 17 to 24 ft. Elsewhere within 480 nm se
and 360 nm NW semicircles winds 25 to 35 kt. Seas 9 to 15 ft.
.36 hour forecast low 43n59w 990 mb. Within 300 nm se semicircle
winds 40 to 50 kt. Seas 18 to 26 ft.
.48 hour forecast low 47n60w 986 mb. Within 360 nm se quadrant
winds 40 to 50 kt. Seas 17 to 25 ft. Elsewhere within 960 nm S
and 720 nm E quadrants winds 25 to 40 kt. Seas 10 to 18 ft.
...Storm Warning...
.30 hour forecast new low 63n37w 1002 mb. Within 120 nm of the
Greenland coast E of 44w winds 35 to 50 kt. Seas 12 to 18 ft.
.48 hour forecast low E of area near 66n31w 990 mb. Forecast
conditions as described by forecast low 64n55w above.
...Heavy freezing spray warning...
.Over forecast waters W of a line from 60n64w to 66n53w area of
light to moderate freezing spray.
.24 hour forecast W of a line from 60n64w to 67n55w area of
moderate to heavy freezing spray.
.48 hour forecast NW of a line from 60n62w to 64n53w area of
moderate to heavy freezing spray.
.Synopsis and forecast.
.over forecast waters from 50n to 60n between 45w and 55w and
from 57n to 61n E of 45w areas of dense fog occasionally
reducing visibility to below 1 nm.
.24 hour forecast from 51n to 61n E of 43w areas of dense fog
occasionally reducing visibility to below 1 nm.
.48 hour forecast conditions E of area.
.48 hour forecast from 42n to 46n between 48w and 60w areas of
dense fog occasionally reducing visibility to below 1 nm.
.48 hour forecast high 51n36w 1038 mb.
.forecaster mcrandal. Ocean prediction center.
Tropical Prediction Center Miami FL
Atlantic between 07n to 31n W of 35w including Caribbean Sea
and Gulf of Mexico
Synopsis valid 1800 UTC Thu Nov 20.
24 hour forecast valid 1800 UTC Fri Nov 21.
48 hour forecast valid 1800 UTC Sat Nov 22.
.Warnings.
.none.
.Synopsis and forecast.
.Atlc cold front 31n52w to 22n61w to eastern Dominican Republic.
N of 26n W of front to 62w NW to N winds to 20 kt. Seas 12 to 18
ft in NW swell. S of 23n W of front to 74w NE winds to 20 kt.
Seas 10 to 14 ft in N swell. Elsewhere W of front to 78w winds
less than 20 kt. Seas 8 to 12 ft between 71w and 78w and 12 to
18 ft in NW swell between front and 71w.
.24 hour forecast stationary front from 31n49w to 19n64w. S of
22n W of front to 74w NE to E winds to 20 kt. Seas 8 to 11 ft in
N swell. N of 22n W of front to 72w winds less than 20 kt. Seas
8 to 11 ft in N swell between 65w and 75w and 11 to 14 ft in NW
swell between front and 65w.
.48 hour forecast dissipating frontal trough along 54w N of 25n.
From 15n to 22n W of 50w NE to E winds to 20 kt. Seas 8 to 10 ft
in NW swell. Elsewhere N of 22n between 45w and 60w winds less
than 20 kt. Seas to 9 ft in NW swell.
.18 hour forecast cold front from 31n77w to 29n80w. NW of cold
front W to NW winds 20 to 30 kt. Seas less than 8 ft.
.24 hour forecast cold front from 31n76w to 27n80w. NW of front
NW winds 20 to 30 kt. Seas to 8 ft. N of 28n E of front to 69w
SW winds 20 to 25 kt. Seas to 8 ft.
.48 hour forecast cold front from 31n61w to 25n70w to 22n78w. NW
of front NW to N winds 20 to 25 kt...except to 30 kt within 180
nm W of front N of 27n. Seas 8 to 14 ft N and E of Bahamas.
.18 hour forecast N of 28n E of 38w E winds 20 kt. Seas to 8 ft.
.24 hour forecast little change.
.48 hour forecast N of 25n E of 45w E winds to 20 kt. Seas 8 to
11 ft in mixed NE and NW swell. Elsewhere N of 21n E of 51w
winds less than 20 kt. Seas to 9 ft in mixed NE and NW swell.
.Caribbean cold front from S Dominican Republic to 16n79w then
stationary to low pres 10n80w 1009 mb. W of front to 83w N to NE
winds 20 to 25 kt. Seas 8 to 12 ft S of 19n. W of 83w N to NE
winds to 20 kt. Seas to 9 ft in NE swell S of 18n. N of 14n E of
front to 69w N to NE winds 20 to 25 kt. Seas to 8 ft.
.24 hour forecast stationary front from Mona Passage to 15n75w
to 10n79w. W of front NE winds 20 kt. Seas to 10 ft in NE swell.
N of 14n E of front to 69w NE winds 20 kt. Seas to 8 ft.
.48 hour forecast dissipating stationary front from Puerto Rico
to 15n75w to 10n78w. N of 11n W of 71w NE winds 20 to 25 kt.
Seas 8 to 11 ft S of 20n.
.12 hour forecast cold front from 30n85w to 27n97w. N of front N
to NE winds 20 to 25 kt. Seas less than 8 ft.
.24 hour forecast front from 26n82w to 25n97w N to NE winds 20
to 30 kt. Seas to 10 ft...highest NW waters.
.48 hour forecast dissipating front se part. S of 29n E of 86w
NE to E winds to 20 kt. Seas to 9 ft. Elsewhere from 23n to 27n
winds less than 20 kt. Seas to 9 ft in NE swell.
.Remainder of area winds less than 20 kt. Seas less than 8 ft.
