Amount of precipitationAmount of precipitation(mm)
Type of precipitationType of precipitation
Risks:
Precipitation riskPrecipitation risk(%)
Storm risk.(%)
Brightness:
Visibility(km)
Pressure(hPa)
UV
Temperature
Air tempAir temp
Perceived temp
Air temp
Perceived temp
Offshore
Offshore wind
Offshore sea(m)
20
15
10
5
0
30
20
10
0
10
5
0
20
15
10
5
0
10
5
0
0.5
0
3
0
25
20
15
10
5
70
60
50
40
Thu 7
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
Run : 6/05 00ZMesh : 1kmUpdated, 6h agoUpdate imminent
Thu 7
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
65°NEENE
100°EE
125°SESE
145°SESE
135°SESE
130°SESE
120°SEESE
115°SEESE
130°SESE
130°SESE
145°SESE
160°SSSE
180°SS
190°SS
205°SWSSW
210°SWSSW
220°SWSW
235°SWSW
245°SWWSW
270°WW
300°NWWNW
315°NWNW
330°NWNNW
335°NWNNW
47242
36242
36242
35131
36242
47242
48252
48252
48252
48252
59362
510362
611372
612373
713483
713483
612373
612373
59362
48252
47242
47242
47242
36242
611372
612373
612373
510362
611372
612373
814493
815493
9164103
9164103
10195123
12226144
13247154
14267164
16298185
16298185
15288174
15288174
13247154
11206124
9164103
815493
814493
713483
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0
0
0
0
0
0
0
0
0
230°SWSW
235°SWSW
235°SWSW
230°SWSW
235°SWSW
235°SWSW
235°SWSW
235°SWSW
235°SWSW
235°SWSW
235°SWSW
235°SWSW
230°SWSW
225°SWSW
225°SWSW
230°SWSW
235°SWSW
230°SWSW
230°SWSW
230°SWSW
235°SWSW
235°SWWSW
230°SWSW
230°SWSW
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
4
5
5
5
5
5
4
4
4
4
4
4
4
4
5
5
5
5
4
4
4
4
5
5
35
40
40
40
40
35
35
35
35
30
30
30
35
70
30
60
60
50
50
35
35
60
60
60
3.1
2.5
2.1
2.0
2.3
3.0
3.8
4.5
4.8
4.7
4.4
3.9
3.4
2.9
2.5
2.3
2.5
3.0
3.7
4.4
4.8
4.8
4.6
4.2
1558
1559
1559
1559
1558
1558
1458
1458
1558
1558
1559
1559
1559
1559
1560
1660
1661
1661
1661
1661
1660
1560
1559
1559
45
50
60
60
60
85
65
45
45
55
45
40
45
30
30
30
15
15
5
5
5
10
15
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
10
10
10
10
10
5
5
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1013
1013
1013
0
0
0
0
0
0
0
0
0
1
2
3
4
5
5
5
4
3
2
1
0
0
0
0
1253
1253
1152
1152
1152
1152
1151
1050
1151
1253
1356
1458
1559
1661
1661
1662
1762
1762
1762
1661
1661
1558
1355
1254
1051
1050
1049
1050
1050
1049
948
947
949
1253
1558
1763
1966
2068
2069
2068
2069
2068
1967
1864
1661
1456
1253
1151
36224
48225
510236
611237
713348
814349
713348
713348
612337
611237
510236
510236
59236
510236
510236
510236
510236
510236
612337
713348
713348
612337
59236
48225
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time CaptionGlossary
Expert opinion
A northerly and very variable flow prevails over the whole area.
For Saint-Nazaire : No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Increasing clear spells. Skies becoming less cloudy in the afternoon.No precipitation.In the evening, skies with few clouds. SE force 2 turning SSW force 3 in the middle of the day then NW force 2. Gusts reaching 16 knots in the middle of the day. Rippled sea temporarily smooth in the middle of the day. Low, short swell from SW. Poor visibility becoming excellent in the middle of the day.
semaphore stations
Station St Nazaire-Montoir located 6 km from Saint-Nazaire
* +33 1 77 86 86 86: short number of forecasts for France accessible from France - €2.99 per call** 0899 70 12 34: number of forecasts for France and the World accessible from France - €2.99 per call