Superseded by next issuance in 6 hours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

Pacific N of 30n and S of 67n E of a line from Bering Strait to

50n160e

Synopsis valid 1800 UTC Mar 20.

24 hour forecast valid 1800 UTC Mar 21.

48 hour forecast valid 1800 UTC Mar 22.

.Warnings.

...Storm Warning...

.Complex low with main center 44n172w 983 mb moving NE 10 kt will

turn se after 24 hours. Within 300 nm of low center winds 35 to

50 kt. Seas 12 to 20 ft. Also within 660 nm of low center...

except 540 nm N and NE quadrants winds 25 to 40 kt. Seas 10 to 18

ft.

.24 hour forecast low 46n166w 976 mb. Within 420 nm SW quadrant

winds 40 to 55 kt. Seas 24 to 36 ft. Also from 35n to 53n between

149w and 180w winds 25 to 40 kt. Seas 10 to 33 ft...highest near

42n166w.

.48 hour forecast low 41n161w 1000 mb. Within 480 nm W and SW

semicircles winds 25 to 40 kt. Seas 12 to 28 ft...highest near

38n163w.

...Storm Warning...

.From 39n to 46n W of 164e area of S to SW winds 20 to 30 kt.

Seas to 9 ft.

.12 hour forecast W of a line from 36n163e to 44n169e to 48n161e

area of winds 25 to 35 kt. Seas 8 to 12 ft.

.24 hour forecast low well W of area near 49n151e 960 mb. Front

to extend from 50n160e to 48n160e to 43n160e. Within 420 nm E and

NE of front N of 48n...and within 180 nm E and se of front S of

48n winds 35 to 50 kt. Seas 12 to 19 ft. Also W of a line from

33n168e to 50n174e to 55n172e winds 25 to 40 kt. Seas 8 to 15 ft.

.48 hour forecast complex low W of area with secondary center

near 52n159e 971 mb. Front to extend from 55n171e to 50n174e to

35n170e. Within 300 nm se quadrant and within 120 nm E and NE of

front N of 50n winds 35 to 50 kt. Seas 18 to 30 ft...highest se

quadrant. Also within 360 nm NE and 840 nm S and se quadrants...

and elsewhere within 360 nm E and NE of front N of 50n...and

within 240 nm E of front S of 50n winds 25 to 40 kt. Seas 12 to

24 ft...highest S quadrant.

...Gale Warning...

.Low NW of area near 58n172e 998 mb moving N 20 kt. Front

extends from 54n178e to 59n178e. Within 90 nm E of front winds

25 to 35 kt. Seas 8 to 14 ft. Elsewhere within 300 nm E of front

and within 360 nm S and se quadrants winds to 25 kt. Seas to 11

ft.

.24 hour forecast low moved well NW of area. Front to extend from

56n180w to 59n180w. Within 60 nm E and NE of front winds 20 to 30

kt. Seas to 11 ft.

.48 hour forecast conditions described by secondary low 52n159e

and associated front above.

...Gale Warning...

.Low 47n136w 999 mb moving NE 15 kt. Between 120 nm and 420 nm S

semicircle winds 25 to 35 kt. Seas 12 to 19 ft. Also from 37n to

53n E of 143w winds 20 to 30 kt. Seas 9 to 16 ft.

.24 hour forecast low 52n134w 1000 mb. Within 240 nm E and 660 nm

S and SW quadrants winds 20 to 30 kt. Seas 8 to 14 ft.

.48 hour forecast low 56n133w 1012 mb. From 39n to 50n E of 138w

winds less than 25 kt. Seas to 10 ft.

...Gale Warning...

.48 hour forecast new low 54n150w 1000 mb. Front to extend from

33n154w to 49n143w. Within 180 nm E of front winds 25 to 35 kt.

Seas 9 to 16 ft. Also within 240 nm se semicircle...600 nm W

quadrant...and within 360 nm E and NE of entire front winds 20 to

30 kt. Seas 8 to 14 ft.

...Heavy freezing spray warning...

.Light to moderate freezing spray N of 54n between 159w and 167w

over ice free waters of the Bering Sea...and N of 51n W of 174e.

.24 hour forecast moderate to heavy freezing spray N of a line

from 56n157w to 55n169w to 57n175e.

.48 hour forecast little change.

.synopsis and forecast.

.Low 48n151w 1005 mb moving E 15 kt. Within 420 nm S and se and

240 nm W quadrants winds 20 to 30 kt. Seas 12 to 20 ft.

.24 hour forecast low and associated conditions absorbed by low

52n134w described in warnings section above.

.Low 58n148w 1009 mb moving SW 10 kt. Within 120 nm N quadrant

winds to 25 kt. Seas to 11 ft.

.24 hour forecast low 56n153w 1009 mb. Winds less than 25 kt.

Seas less than 8 ft.

.48 hour forecast low and conditions absorbed by new low 54n150w

described in warnings section above.

.Low 51n162e 1002 mb moving E 10 kt and weakening. Within 240 nm

S and se quadrants winds 20 to 30 kt. Seas 8 to 12 ft.

.24 hour forecast low dissipated. Conditions described with low

49n151e in warnings section above.

.48 hour forecast from 31n to 40n between 120w and 128w area of N

winds 20 to 30 kt. Seas to 11 ft.

.Dense fog. Vsby occasionally below 1 nm from 39n to 46n between

158w and 175w.

.24 hour forecast dense fog from 42n to 50n between 146w and

157w.

.48 hour forecast dense fog from 43n to 52n between 137w and

149w.

.Dense fog. 24 hour forecast vsby occasionally below 1 nm over

forecast waters from 39n to 52n W of 174e.

.48 hour forecast dense fog N of 41n between 178e and 170e.

.high 37n169e 1025 mb moving se 15 kt.

.24 hour forecast high 35n178e 1026 mb.

.48 hour forecast high 34n176w 1027 mb.

.High 31n155w 1026 mb moving NE 20 kt.

.24 hour forecast high 34n142w 1028 mb.

.48 hour forecast high 38n133w 1031 mb.

.high 32n127w 1023 mb nearly stationary and weakening.

.24 hour forecast high dissipated.

.24 hour forecast high 56n176e 1021 mb.

.48 hour forecast high moved NW of area.

.forecaster Mills. Ocean prediction center.

Tropical Prediction Center Miami FL

E Pacific from the Equator to 30n E of 140w

Synopsis valid 1800 UTC Fri Mar 19.

24 hour forecast valid 1800 UTC Sat Mar 20.

48 hour forecast valid 1800 UTC sun Mar 21.

.Warnings.

...Gale Warning...

.24 hour forecast within 60 nm either side of a line from 16n95w

to 13n96w including the Gulf of Tehuantepec N to NE winds 30 to

35 kt. Seas 8 to 10 ft.

.48 hour forecast within 60 nm either side of line from 16n95w

to 12n96w including the Gulf of Tehuantepec N to NE winds 30 to

35 kt. Seas 10 to 14 ft.

.Synopsis and forecast.

.18 hour forecast N of 14n between 94w and 96w including the

Gulf of Tehuantepec N winds 20 to 25 kt. Seas less than 8 ft.

.24 hour forecast...Except as noted in warnings section...within

120 nm either side of line from 16n95w to 13n96w to 12n96.5w

including the Gulf of Tehuantepec N to NE winds 20 to 25 kt.

Seas to 8 ft.

.48 hour forecast...Except as noted in warnings section...within

120 nm either side of line from 16n95w to 12n96w to 11n99w

including the Gulf of Tehuantepec N to NE winds 20 to 25 kt.

Seas 8 to 10 ft. Elsewhere from 09n to 15n between 92w and 100w

winds less than 20 kt. Seas 8 to 10 ft in N and SW swell.

.Stationary front from 30n136w to 27n140w. W of front N to NE

winds 20 kt. Seas 10 to 12 ft in NW swell. Se of front to a line

from 30n130w to 20n135w winds less than 20 kt. Seas 8 to 11 ft

in W and NW swell.

.24 hour forecast dissipating stationary front from 30n135w to

26n140w. W of front NE winds 20 kt. Seas 9 to 11 ft in NW swell.

Elsewhere N of 20n W of 125w winds less than 20 kt. Seas 8 to 11

ft in NW swell.

.48 hour forecast stationary front dissipated. W of a line from

30n120w to 20n128w NE winds 20 kt. Seas 9 to 10 ft in SW and NW

swell. Elsewhere N of 20n W of 120w winds less than 20 kt. Seas

to 9 ft in NW swell.

.From 05n to 15n W of 120w NE winds 20 kt. Seas 8 to 11 ft in

mainly NW swell. Elsewhere S of 18n W of 105w winds less than 20

kt. Seas 8 to 10 ft in mixed NW and SW swell.

.24 hour forecast from 04n to 15n W of 125w NE winds 20 to 25

kt. Seas 8 to 11 ft. From 15n to 20n W of 128w winds less than

20 kt. Seas 8 to 10 ft in NW swell. Elsewhere S of 12n W of 98w

winds less than 20 kt. Seas 8 to 11 ft in mixed SW and NW swell.

.48 hour forecast from 05n to 20n W of 128w NE winds 20 to 25

kt. Seas 9 to 11 ft in mixed NW and NE swell. Elsewhere S of 20n

W of 120w winds less than 20 kt. Seas to 9 ft in mixed SW and NW

swell. S of 15n between 100w and 120w winds less than 20 kt.

Seas 8 to 11 ft in SW swell. S of 09n between 91w and 100w winds

less than 20 kt. Seas 8 to 10 ft in SW swell.

.From 09n to 12n E of 90w including the Gulf of papagayo NE to E

winds 20 to 25 kt. Seas to 8 ft.

.12 hour forecast winds less than 20 kt. Seas less than 8 ft.

.42 hour forecast from 08n to 12n E of 90w NE winds 20 kt. Seas

less than 8 ft.

.48 hour forecast little change

.12 hour forecast N of 24n including the Gulf of California NW

winds 20 to 25 kt. Seas less than 8 ft.

.24 hour forecast N of 24n including Gulf of California NW to N

winds 20 kt. Seas less than 8 ft.

.48 hour forecast winds less than 20 kt. Seas less than 8 ft.

.Remainder area winds less than 20 kt. Seas less than 8 ft.

.Convection valid 2030 UTC Sat Mar 20...

.intertropical convergence zone...04n77w to 06n95w to 03n110w to

04n130w to 02n140w. Scattered moderate isolated strong from

01.5n to 04n between 96w and 100w and within a 90 nm radius of

06n107w.

$$

.Forecaster cab. Tropical Prediction Center.