Tidal Current Predictions

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	January, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1		0204	-1.5	0515	0809	+2.2	1004	1409	-4.1	1909	2133	+2.4
2	0020	0259	-1.5	0612	0858	+2.1	1050	1457	-4.1	1955	2221	+2.5
3	0112	0353	-1.5	0707	0947	+2.0	1136	1545	-4.1	2039	2307	+2.6
4	0200	0444	-1.5	0759	1034	+1.9	1221	1630	-3.8	2118	2349	+2.5
5	0244	0532	-1.5	0849	1120	+1.8	1305	1713	-3.5	2153
6		0029	+2.4	0324	0618	-1.5	0939	1205	+1.5	1350	1755	-3.2	2224
7		0107	+2.2	0402	0703	-1.5	1028	1251	+1.3	1436	1838	-2.8	2250
8		0144	+2.1	0439	0749	-1.5	1121	1340	+1.1	1527	1928	-2.2	2314
9		0223	+1.9	0516	0837	-1.5	1222	1436	+0.9	1628	2027	-1.7	2342
10		0304	+1.7	0555	0927	-1.7	1337	1545	+0.8	1749	2129	-1.3
11	0018	0350	+1.5	0635	1018	-1.8	1456	1710	+0.8	1930	2230	-1.0
12	0101	0440	+1.5	0716	1110	-2.0	1602	1829	+1.0	2103	2330	-0.8
13	0153	0532	+1.4	0756	1202	-2.2	1656	1926	+1.3	2214
14		0028	-0.7	0250	0624	+1.5	0834	1250	-2.7	1741	2010	+1.6	2308
15		0122	-0.8	0347	0712	+1.5	0912	1333	-3.1	1821	2049	+1.8	2351
16		0211	-1.0	0441	0758	+1.7	0951	1411	-3.4	1858	2126	+2.1
17	0027	0257	-1.0	0534	0843	+1.8	1031	1445	-3.8	1933	2203	+2.3
18	0057	0342	-1.3	0626	0928	+1.9	1113	1517	-4.1	2006	2240	+2.5
19	0125	0424	-1.4	0716	1015	+2.0	1157	1549	-4.2	2039	2317	+2.7
20	0154	0503	-1.7	0806	1102	+2.0	1243	1627	-4.2	2112	2356	+2.7
21	0226	0539	-2.0	0857	1150	+2.0	1331	1709	-4.1	2147
22		0036	+2.7	0301	0614	-2.2	0951	1240	+1.9	1424	1756	-3.6	2223
23		0119	+2.7	0339	0653	-2.5	1048	1334	+1.8	1524	1852	-3.1	2302
24		0206	+2.5	0422	0743	-2.7	1155	1437	+1.5	1633	2008	-2.4	2345
25		0257	+2.3	0510	0844	-2.7	1319	1550	+1.4	1759	2129	-1.7
26	0034	0353	+2.1	0604	0952	-2.8	1450	1714	+1.5	1939	2241	-1.4
27	0132	0454	+2.0	0703	1101	-2.9	1608	1834	+1.7	2112	2350	-1.1
28	0243	0557	+1.9	0801	1209	-3.2	1712	1938	+2.0	2225
29		0055	-1.3	0401	0658	+1.9	0857	1311	-3.5	1807	2031	+2.2	2322
30		0153	-1.4	0511	0754	+2.0	0949	1404	-3.6	1854	2118	+2.4
31	0009	0246	-1.5	0612	0845	+2.0	1039	1451	-3.8	1936	2202	+2.5

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	February, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0050	0335	-1.7	0705	0933	+2.0	1125	1535	-3.8	2015	2242	+2.5
2	0127	0421	-1.8	0753	1019	+1.9	1210	1617	-3.6	2049	2320	+2.5
3	0200	0503	-2.0	0838	1103	+1.8	1254	1657	-3.4	2118	2354	+2.4
4	0231	0543	-2.0	0920	1146	+1.7	1338	1736	-3.1	2143
5		0026	+2.2	0301	0622	-2.0	1000	1229	+1.5	1423	1816	-2.7	2206
6		0059	+2.1	0331	0701	-2.0	1042	1314	+1.3	1512	1901	-2.2	2230
7		0133	+1.9	0403	0743	-1.8	1128	1404	+1.1	1609	1955	-1.5	2258
8		0212	+1.7	0439	0831	-1.7	1229	1505	+0.9	1726	2057	-1.1	2332
9		0257	+1.5	0520	0926	-1.7	1355	1625	+0.8	1916	2201	-0.7
10	0013	0348	+1.3	0608	1025	-1.8	1518	1755	+1.0	2102	2304	-0.6
11	0105	0446	+1.2	0701	1126	-2.1	1620	1859	+1.3	2209
12		0005	-0.6	0211	0547	+1.3	0752	1222	-2.5	1709	1943	+1.6	2253
13		0101	-0.7	0324	0644	+1.4	0841	1310	-2.9	1750	2021	+1.9	2324
14		0149	-1.0	0431	0736	+1.6	0928	1351	-3.4	1826	2056	+2.2	2348
15		0232	-1.4	0530	0824	+1.8	1014	1428	-3.8	1901	2131	+2.4
16	0011	0312	-1.7	0622	0911	+2.0	1100	1505	-3.9	1934	2208	+2.7
17	0036	0350	-2.1	0712	0959	+2.1	1148	1543	-4.1	2008	2246	+2.8
18	0106	0424	-2.5	0759	1047	+2.2	1237	1623	-4.1	2042	2325	+2.9
19	0139	0457	-2.8	0848	1136	+2.2	1328	1706	-3.8	2117
20		0005	+2.8	0215	0529	-3.1	0938	1226	+2.2	1422	1754	-3.4	2154
21		0048	+2.7	0254	0606	-3.2	1033	1320	+2.0	1522	1849	-2.7	2233
22		0134	+2.4	0338	0651	-3.1	1137	1422	+1.7	1633	2000	-2.0	2315
23		0224	+2.1	0427	0750	-2.9	1258	1535	+1.5	1802	2116	-1.4
24	0003	0322	+1.8	0525	0915	-2.7	1430	1701	+1.5	1950	2228	-1.0
25	0107	0427	+1.6	0631	1039	-2.7	1549	1821	+1.7	2117	2338	-1.0
26	0238	0537	+1.5	0739	1156	-2.8	1652	1922	+2.0	2217
27		0043	-1.1	0408	0645	+1.6	0843	1301	-3.1	1744	2012	+2.2	2302
28		0140	-1.5	0516	0743	+1.8	0940	1352	-3.2	1828	2055	+2.4	2339

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	March, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1		0227	-1.8	0611	0833	+1.8	1031	1435	-3.4	1907	2134	+2.4
2	0011	0310	-2.1	0659	0920	+1.9	1118	1515	-3.4	1941	2210	+2.4
3	0040	0349	-2.2	0742	1004	+1.9	1202	1554	-3.2	2011	2243	+2.4
4	0107	0427	-2.4	0821	1046	+1.9	1245	1634	-3.1	2037	2314	+2.3
5	0134	0503	-2.5	0857	1127	+1.8	1329	1714	-2.8	2100	2345	+2.2
6	0201	0537	-2.5	0931	1208	+1.7	1414	1755	-2.4	2124
7		0017	+2.0	0229	0606	-2.4	1007	1250	+1.5	1503	1839	-2.0	2150
8		0051	+1.8	0259	0625	-2.2	1047	1337	+1.3	1600	1931	-1.4	2220
9		0129	+1.6	0333	0644	-2.1	1137	1434	+1.1	1717	2033	-0.8	2255
10		0213	+1.3	0413	0724	-2.0	1248	1544	+1.0	1916	2138	-0.6	2336
11		0406	+1.2	0602	1021	-1.8	1518	1808	+1.1	2152	2342	-0.4
12	0134	0508	+1.0	0705	1145	-2.0	1629	1917	+1.3	2243
13		0042	-0.6	0254	0615	+1.1	0811	1248	-2.2	1723	2004	+1.7	2314
14		0136	-1.0	0423	0719	+1.3	0913	1340	-2.8	1806	2043	+2.0	2334
15		0222	-1.4	0534	0816	+1.5	1009	1424	-3.2	1845	2119	+2.3	2355
16		0302	-2.0	0630	0908	+1.8	1101	1505	-3.5	1921	2155	+2.5
17	0019	0339	-2.5	0719	0957	+2.1	1152	1546	-3.6	1957	2233	+2.7
18	0048	0412	-2.9	0806	1045	+2.3	1243	1628	-3.8	2033	2313	+2.8
19	0120	0445	-3.4	0852	1134	+2.4	1334	1713	-3.5	2109	2354	+2.8
20	0156	0517	-3.6	0939	1224	+2.4	1427	1800	-3.2	2147
21		0036	+2.7	0234	0552	-3.8	1029	1314	+2.3	1524	1851	-2.7	2225
22		0119	+2.5	0315	0631	-3.8	1123	1409	+2.1	1626	1948	-2.1	2306
23		0206	+2.2	0400	0715	-3.5	1225	1510	+1.9	1740	2055	-1.5	2350
24		0257	+1.9	0450	0811	-2.9	1340	1622	+1.7	1915	2206	-1.1
25	0045	0355	+1.5	0549	0946	-2.5	1504	1744	+1.6	2054	2316	-0.8
26	0204	0504	+1.3	0701	1119	-2.4	1619	1858	+1.8	2202
27		0024	-1.0	0353	0620	+1.3	0820	1235	-2.4	1720	1957	+2.0	2250
28		0127	-1.4	0514	0733	+1.3	0932	1338	-2.5	1809	2043	+2.2	2327
29		0219	-1.8	0615	0832	+1.5	1032	1426	-2.7	1851	2123	+2.2	2357
30		0301	-2.2	0704	0922	+1.8	1123	1508	-2.8	1927	2158	+2.3
31	0024	0338	-2.5	0747	1006	+1.9	1210	1547	-2.8	1958	2231	+2.3

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	April, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0049	0414	-2.8	0825	1048	+2.0	1254	1628	-2.8	2026	2302	+2.2
2	0114	0449	-2.9	0901	1128	+2.0	1338	1709	-2.5	2051	2333	+2.1
3	0141	0522	-2.9	0935	1209	+2.0	1423	1752	-2.2	2117
4		0005	+2.0	0208	0550	-2.9	1008	1249	+1.8	1510	1835	-2.0	2144
5		0039	+1.9	0236	0607	-2.8	1043	1331	+1.8	1601	1921	-1.5	2214
6		0115	+1.7	0306	0622	-2.8	1122	1416	+1.6	1700	2013	-1.1	2247
7		0155	+1.5	0341	0653	-2.7	1207	1508	+1.4	1817	2113	-0.7	2324
8		0239	+1.3	0421	0734	-2.4	1303	1609	+1.3	2002	2216	-0.4
9	0012	0333	+1.1	0511	0830	-2.1	1412	1716	+1.4	2113	2317	-0.6
10	0121	0437	+1.0	0616	1047	-2.0	1523	1820	+1.5	2150
11		0014	-0.8	0253	0547	+1.0	0733	1205	-2.2	1622	1913	+1.8	2213
12		0105	-1.4	0425	0656	+1.2	0848	1304	-2.5	1711	1958	+2.1	2235
13		0150	-2.0	0531	0758	+1.5	0952	1354	-2.9	1755	2039	+2.4	2301
14		0229	-2.7	0624	0853	+1.9	1051	1440	-3.1	1836	2119	+2.6	2331
15		0304	-3.2	0713	0943	+2.2	1146	1525	-3.2	1916	2159	+2.7
16	0004	0337	-3.8	0759	1033	+2.4	1240	1612	-3.1	1956	2242	+2.7
17	0040	0411	-4.1	0847	1123	+2.5	1335	1701	-2.9	2037	2325	+2.7
18	0119	0447	-4.3	0935	1214	+2.5	1431	1752	-2.5	2118
19		0009	+2.5	0159	0525	-4.2	1026	1306	+2.4	1530	1846	-2.1	2200
20		0054	+2.3	0242	0607	-4.1	1119	1400	+2.2	1636	1944	-1.7	2245
21		0142	+2.0	0328	0652	-3.6	1217	1459	+2.0	1751	2048	-1.3	2336
22		0233	+1.6	0419	0748	-2.9	1320	1605	+1.9	1918	2154	-1.0
23	0041	0332	+1.3	0518	0925	-2.4	1428	1717	+1.8	2034	2259	-1.0
24	0217	0442	+1.0	0631	1051	-2.1	1534	1823	+1.8	2129
25		0002	-1.3	0355	0601	+1.0	0757	1200	-2.0	1632	1920	+1.9	2210
26		0100	-1.7	0508	0718	+1.1	0916	1300	-2.0	1720	2006	+2.0	2242
27		0148	-2.1	0604	0819	+1.4	1021	1351	-2.1	1800	2044	+2.1	2309
28		0228	-2.5	0650	0907	+1.6	1115	1435	-2.2	1835	2117	+2.1	2334
29		0305	-2.8	0731	0951	+1.8	1203	1518	-2.2	1906	2149	+2.1
30	0000	0339	-3.1	0808	1032	+1.9	1249	1601	-2.1	1935	2221	+2.0

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	May, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0026	0413	-3.2	0843	1112	+2.0	1335	1645	-2.0	2004	2254	+2.0
2	0053	0444	-3.2	0918	1152	+2.0	1422	1731	-1.7	2034	2329	+1.9
3	0122	0508	-3.2	0952	1232	+2.0	1511	1818	-1.4	2106
4		0007	+1.8	0153	0523	-3.2	1028	1313	+2.0	1603	1905	-1.1	2141
5		0045	+1.6	0226	0549	-3.2	1105	1356	+1.9	1701	1956	-0.8	2219
6		0127	+1.5	0302	0624	-3.2	1146	1443	+1.8	1804	2052	-0.7	2304
7		0213	+1.3	0345	0707	-2.9	1230	1535	+1.8	1910	2149	-0.7
8	0000	0306	+1.1	0436	0800	-2.7	1321	1631	+1.8	2000	2245	-0.8
9	0114	0410	+1.0	0541	0920	-2.2	1417	1727	+1.9	2036	2338	-1.3
10	0246	0520	+1.0	0702	1118	-2.2	1515	1821	+2.0	2107
11		0027	-1.8	0413	0633	+1.2	0825	1225	-2.4	1610	1912	+2.2	2139
12		0112	-2.5	0519	0740	+1.5	0939	1323	-2.5	1701	1959	+2.4	2213
13		0153	-3.1	0614	0839	+1.9	1044	1415	-2.5	1750	2044	+2.5	2249
14		0232	-3.8	0705	0932	+2.2	1144	1506	-2.5	1836	2129	+2.6	2327
15		0309	-4.2	0755	1024	+2.4	1242	1557	-2.4	1922	2214	+2.6
16	0007	0347	-4.5	0844	1115	+2.6	1340	1650	-2.2	2008	2300	+2.4
17	0049	0428	-4.5	0934	1207	+2.6	1438	1745	-2.0	2054	2346	+2.3
18	0133	0511	-4.3	1024	1258	+2.5	1539	1840	-1.7	2142
19		0034	+2.1	0217	0557	-4.1	1114	1349	+2.4	1643	1936	-1.4	2234
20		0122	+1.8	0304	0645	-3.6	1203	1443	+2.2	1749	2035	-1.3	2332
21		0213	+1.5	0355	0743	-2.9	1252	1539	+2.0	1855	2135	-1.1
22	0044	0310	+1.2	0452	0903	-2.4	1342	1638	+1.9	1953	2233	-1.3
23	0212	0417	+0.9	0602	1016	-2.0	1432	1736	+1.8	2041	2329	-1.4
24	0339	0536	+0.8	0727	1120	-1.7	1523	1830	+1.8	2119
25		0022	-1.8	0450	0656	+1.0	0855	1218	-1.5	1611	1917	+1.8	2151
26		0110	-2.2	0545	0800	+1.2	1007	1313	-1.5	1653	1957	+1.8	2219
27		0153	-2.5	0632	0851	+1.5	1107	1403	-1.5	1731	2033	+1.8	2247
28		0232	-2.9	0712	0935	+1.7	1159	1450	-1.5	1807	2108	+1.9	2314
29		0308	-3.2	0750	1016	+1.8	1248	1537	-1.5	1842	2143	+1.8	2343
30		0343	-3.4	0827	1057	+2.0	1336	1624	-1.4	1918	2220	+1.8
31	0014	0416	-3.5	0903	1136	+2.0	1424	1712	-1.3	1956	2259	+1.8

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	June, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0046	0441	-3.5	0939	1215	+2.1	1512	1800	-1.1	2034	2339	+1.8
2	0120	0500	-3.6	1013	1254	+2.2	1558	1847	-1.0	2115
3		0021	+1.6	0157	0529	-3.6	1048	1334	+2.2	1641	1933	-1.0	2200
4		0105	+1.5	0237	0606	-3.5	1123	1416	+2.2	1722	2021	-1.0	2251
5		0151	+1.4	0322	0650	-3.4	1200	1501	+2.2	1802	2112	-1.1	2351
6		0244	+1.3	0414	0742	-2.9	1241	1549	+2.2	1842	2203	-1.4
7	0100	0346	+1.1	0519	0852	-2.5	1327	1641	+2.2	1924	2253	-1.7
8	0224	0455	+1.1	0639	1035	-2.2	1419	1734	+2.2	2006	2342	-2.2
9	0351	0610	+1.3	0808	1150	-2.1	1514	1828	+2.2	2048
10		0031	-2.8	0503	0723	+1.5	0930	1255	-2.0	1611	1922	+2.3	2131
11		0120	-3.4	0604	0827	+1.9	1042	1354	-2.0	1707	2013	+2.4	2214
12		0206	-3.9	0659	0923	+2.2	1148	1450	-2.0	1802	2102	+2.4	2258
13		0251	-4.2	0751	1016	+2.4	1249	1544	-1.8	1855	2151	+2.4	2343
14		0336	-4.5	0841	1108	+2.6	1347	1640	-1.7	1948	2239	+2.3
15	0028	0424	-4.5	0929	1158	+2.7	1444	1735	-1.7	2041	2328	+2.2
16	0114	0513	-4.2	1015	1246	+2.6	1539	1829	-1.5	2135
17		0017	+2.0	0200	0601	-3.9	1059	1332	+2.5	1631	1921	-1.5	2230
18		0105	+1.8	0247	0649	-3.5	1139	1418	+2.4	1720	2012	-1.4	2328
19		0154	+1.5	0336	0739	-3.1	1216	1504	+2.2	1808	2104	-1.4
20	0032	0248	+1.2	0430	0836	-2.5	1249	1550	+2.0	1854	2156	-1.5
21	0144	0349	+0.9	0534	0938	-2.0	1321	1638	+1.8	1938	2248	-1.7
22	0304	0501	+0.8	0654	1040	-1.5	1356	1727	+1.7	2018	2338	-1.8
23	0418	0625	+0.8	0829	1139	-1.3	1439	1816	+1.6	2055
24		0029	-2.1	0518	0738	+1.0	0954	1238	-1.1	1529	1904	+1.5	2129
25		0117	-2.4	0609	0833	+1.3	1102	1334	-1.1	1621	1948	+1.6	2202
26		0202	-2.8	0653	0919	+1.6	1200	1426	-1.1	1710	2030	+1.6	2235
27		0243	-3.1	0733	1000	+1.8	1250	1515	-1.1	1757	2110	+1.7	2308
28		0321	-3.4	0810	1039	+2.0	1336	1604	-1.1	1843	2151	+1.7	2343
29		0357	-3.5	0846	1117	+2.1	1418	1652	-1.1	1928	2233	+1.8
30	0019	0429	-3.6	0920	1153	+2.2	1455	1738	-1.1	2014	2316	+1.8

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	July, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0058	0454	-3.8	0952	1230	+2.4	1527	1821	-1.3	2100
2		0001	+1.8	0138	0521	-3.9	1024	1307	+2.4	1557	1901	-1.3	2149
3		0046	+1.7	0221	0558	-3.8	1056	1345	+2.5	1628	1940	-1.5	2240
4		0133	+1.6	0309	0640	-3.6	1129	1426	+2.4	1702	2019	-1.7	2336
5		0225	+1.5	0403	0730	-3.2	1206	1511	+2.4	1741	2104	-2.0
6	0039	0324	+1.3	0507	0834	-2.7	1248	1600	+2.3	1824	2157	-2.2
7	0155	0432	+1.3	0625	1005	-2.1	1335	1654	+2.2	1913	2253	-2.7
8	0325	0549	+1.3	0757	1124	-1.7	1429	1751	+2.2	2004	2352	-2.9
9	0446	0709	+1.5	0928	1233	-1.5	1530	1850	+2.1	2055
10		0052	-3.4	0553	0818	+1.9	1048	1338	-1.4	1636	1947	+2.2	2147
11		0150	-3.8	0651	0915	+2.2	1155	1438	-1.4	1741	2042	+2.2	2237
12		0243	-4.1	0743	1008	+2.4	1253	1534	-1.5	1844	2134	+2.2	2326
13		0334	-4.2	0831	1057	+2.6	1345	1628	-1.5	1944	2224	+2.2
14	0015	0424	-4.2	0916	1143	+2.7	1432	1720	-1.7	2039	2314	+2.0
15	0102	0512	-4.1	0957	1226	+2.7	1515	1810	-1.7	2132
16		0002	+1.9	0149	0557	-3.8	1035	1307	+2.5	1555	1855	-1.8	2223
17		0049	+1.8	0235	0640	-3.5	1107	1345	+2.4	1632	1940	-1.8	2313
18		0135	+1.5	0322	0722	-2.9	1135	1423	+2.2	1708	2024	-1.8
19	0003	0223	+1.3	0413	0808	-2.4	1159	1501	+2.0	1744	2110	-1.7
20	0100	0317	+1.0	0511	0903	-1.8	1224	1541	+1.8	1824	2159	-1.7
21	0209	0422	+0.8	0626	1004	-1.4	1256	1626	+1.5	1906	2251	-1.7
22	0330	0545	+0.8	0805	1106	-1.0	1336	1716	+1.4	1951	2345	-1.8
23	0442	0711	+1.0	0947	1208	-0.7	1426	1810	+1.3	2036
24		0041	-2.1	0540	0813	+1.3	1102	1308	-0.7	1527	1905	+1.3	2119
25		0134	-2.5	0628	0900	+1.5	1158	1405	-0.7	1630	1956	+1.4	2200
26		0221	-2.8	0709	0939	+1.8	1242	1456	-0.8	1731	2043	+1.5	2240
27		0303	-3.2	0746	1015	+2.0	1318	1543	-1.1	1826	2128	+1.7	2319
28		0341	-3.5	0820	1049	+2.2	1347	1627	-1.3	1917	2213	+1.8
29	0000	0416	-3.8	0852	1124	+2.4	1412	1709	-1.4	2004	2257	+1.8
30	0042	0447	-3.9	0922	1159	+2.6	1436	1747	-1.7	2051	2343	+1.9
31	0126	0518	-3.9	0953	1235	+2.7	1504	1820	-2.0	2138

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	August, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1		0029	+2.0	0212	0553	-3.9	1024	1313	+2.7	1535	1848	-2.2	2226
2		0117	+1.9	0302	0633	-3.6	1058	1353	+2.7	1610	1917	-2.5	2318
3		0208	+1.8	0357	0721	-3.1	1134	1437	+2.5	1649	1957	-2.7
4	0017	0305	+1.6	0501	0823	-2.4	1214	1525	+2.3	1734	2050	-2.8
5	0129	0413	+1.5	0619	0948	-1.8	1300	1619	+2.1	1826	2200	-2.8
6	0301	0532	+1.4	0755	1107	-1.4	1354	1719	+2.0	1925	2317	-2.9
7	0429	0656	+1.6	0935	1218	-1.1	1502	1823	+1.8	2026
8		0032	-3.1	0539	0807	+1.9	1054	1326	-1.1	1624	1928	+1.9	2127
9		0141	-3.4	0638	0904	+2.2	1153	1427	-1.4	1742	2028	+2.0	2224
10		0239	-3.6	0728	0953	+2.4	1241	1522	-1.5	1849	2122	+2.0	2317
11		0329	-3.9	0813	1037	+2.6	1322	1612	-1.8	1945	2213	+2.0
12	0007	0415	-3.9	0853	1119	+2.6	1359	1658	-2.0	2036	2301	+2.0
13	0055	0459	-3.8	0929	1158	+2.6	1433	1741	-2.1	2123	2347	+2.0
14	0140	0540	-3.5	1001	1234	+2.4	1505	1822	-2.2	2207
15		0032	+1.8	0226	0620	-3.2	1029	1307	+2.3	1535	1900	-2.2	2248
16		0115	+1.7	0312	0700	-2.8	1052	1340	+2.2	1606	1937	-2.1	2328
17		0159	+1.5	0400	0744	-2.2	1114	1415	+1.9	1638	2015	-2.0
18	0012	0248	+1.2	0456	0835	-1.7	1141	1452	+1.7	1713	2100	-1.8
19	0106	0346	+1.0	0608	0935	-1.1	1213	1535	+1.5	1754	2156	-1.7
20	0226	0503	+0.9	0755	1040	-0.7	1252	1625	+1.3	1842	2300	-1.7
21	0353	0636	+1.0	0945	1144	-0.6	1343	1724	+1.1	1939
22		0005	-1.8	0500	0744	+1.3	1054	1246	-0.6	1453	1827	+1.1	2036
23		0106	-2.2	0552	0832	+1.5	1140	1344	-0.7	1614	1927	+1.3	2128
24		0157	-2.7	0634	0909	+1.8	1213	1434	-1.0	1726	2021	+1.4	2215
25		0240	-3.1	0710	0942	+2.1	1236	1517	-1.4	1823	2109	+1.6	2301
26		0319	-3.4	0744	1014	+2.3	1256	1557	-1.7	1912	2155	+1.8	2346
27		0355	-3.6	0815	1048	+2.5	1318	1633	-2.1	1957	2241	+2.0
28	0032	0430	-3.8	0846	1124	+2.7	1343	1704	-2.5	2041	2327	+2.2
29	0119	0506	-3.8	0918	1201	+2.7	1413	1732	-2.9	2126
30		0014	+2.2	0207	0545	-3.6	0952	1241	+2.7	1447	1759	-3.2	2212
31		0102	+2.2	0259	0628	-3.2	1027	1322	+2.7	1524	1833	-3.4	2302

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	September, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1		0153	+2.0	0356	0717	-2.7	1105	1406	+2.4	1605	1914	-3.4	2359
2		0251	+1.8	0501	0821	-2.1	1146	1454	+2.2	1652	2004	-3.2
3	0110	0358	+1.7	0622	0941	-1.4	1233	1549	+1.9	1747	2113	-2.9
4	0240	0518	+1.5	0804	1056	-1.1	1332	1652	+1.7	1851	2253	-2.7
5	0407	0642	+1.7	0940	1207	-1.0	1457	1802	+1.5	2003
6		0018	-2.8	0517	0750	+2.0	1045	1315	-1.1	1636	1914	+1.6	2113
7		0130	-2.9	0614	0844	+2.2	1133	1415	-1.5	1751	2018	+1.8	2215
8		0227	-3.2	0702	0929	+2.4	1211	1505	-2.0	1851	2113	+1.9	2311
9		0314	-3.4	0743	1010	+2.5	1245	1548	-2.2	1942	2202	+2.0
10	0001	0356	-3.4	0820	1047	+2.5	1315	1629	-2.5	2027	2248	+2.0
11	0048	0436	-3.2	0852	1122	+2.4	1343	1707	-2.7	2108	2332	+2.0
12	0133	0517	-3.1	0921	1155	+2.3	1411	1743	-2.7	2146
13		0014	+1.9	0218	0557	-2.8	0946	1227	+2.2	1439	1816	-2.7	2222
14		0055	+1.8	0304	0639	-2.4	1009	1300	+2.0	1508	1846	-2.5	2257
15		0138	+1.6	0353	0723	-2.0	1035	1334	+1.8	1538	1907	-2.4	2335
16		0223	+1.5	0450	0814	-1.4	1104	1411	+1.5	1612	1926	-2.2
17	0021	0317	+1.3	0604	0914	-0.8	1138	1453	+1.3	1650	2002	-2.0
18	0124	0425	+1.1	0757	1019	-0.6	1220	1544	+1.1	1738	2154	-1.7
19	0249	0547	+1.1	0933	1122	-0.4	1317	1645	+1.0	1839	2325	-1.8
20	0404	0659	+1.3	1027	1224	-0.6	1439	1753	+1.0	1950
21		0030	-2.1	0500	0748	+1.6	1101	1319	-0.8	1616	1900	+1.1	2056
22		0124	-2.4	0545	0826	+1.9	1122	1406	-1.4	1726	1959	+1.3	2153
23		0210	-2.8	0623	0900	+2.2	1139	1446	-1.8	1819	2050	+1.6	2245
24		0251	-3.1	0658	0934	+2.4	1200	1521	-2.4	1905	2138	+2.0	2335
25		0329	-3.4	0732	1010	+2.6	1225	1553	-2.9	1948	2225	+2.2
26	0024	0409	-3.4	0806	1049	+2.7	1255	1621	-3.4	2031	2312	+2.3
27	0114	0451	-3.4	0842	1129	+2.7	1329	1649	-3.8	2116
28		0001	+2.4	0206	0535	-3.1	0919	1210	+2.7	1405	1722	-4.1	2203
29		0050	+2.4	0300	0624	-2.7	0957	1253	+2.5	1445	1801	-4.1	2254
30		0142	+2.2	0400	0718	-2.2	1038	1339	+2.3	1529	1844	-3.9	2351

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	October, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1		0240	+2.0	0508	0823	-1.7	1123	1428	+2.0	1618	1934	-3.5
2	0058	0346	+1.8	0632	0935	-1.1	1216	1525	+1.7	1714	2043	-2.9
3	0218	0502	+1.8	0810	1046	-1.0	1329	1630	+1.4	1822	2236	-2.5
4	0337	0619	+1.8	0926	1154	-1.1	1515	1745	+1.3	1941	2358	-2.4
5	0443	0723	+2.0	1018	1259	-1.4	1645	1902	+1.3	2100
6		0107	-2.5	0538	0815	+2.2	1058	1355	-1.8	1752	2009	+1.5	2208
7		0202	-2.7	0624	0858	+2.3	1131	1440	-2.4	1846	2103	+1.8	2306
8		0247	-2.7	0703	0936	+2.3	1159	1519	-2.7	1932	2150	+1.9	2356
9		0329	-2.7	0738	1010	+2.3	1226	1555	-2.9	2013	2234	+2.0
10	0043	0410	-2.7	0808	1043	+2.2	1253	1630	-3.1	2051	2316	+2.0
11	0128	0452	-2.4	0835	1116	+2.1	1321	1703	-3.1	2126	2357	+2.0
12	0214	0535	-2.2	0901	1149	+2.0	1349	1734	-3.1	2201
13		0038	+1.9	0302	0620	-1.8	0928	1223	+1.8	1418	1757	-2.9	2235
14		0119	+1.8	0353	0706	-1.5	0958	1259	+1.7	1449	1813	-2.8	2312
15		0203	+1.7	0453	0758	-1.1	1032	1337	+1.5	1522	1839	-2.7	2355
16		0253	+1.5	0608	0856	-0.7	1111	1420	+1.3	1601	1917	-2.4
17	0045	0350	+1.4	0744	0958	-0.6	1159	1511	+1.0	1647	2008	-2.1
18	0145	0454	+1.4	0855	1058	-0.6	1304	1612	+0.9	1748	2231	-2.0
19	0252	0556	+1.5	0936	1155	-0.8	1436	1722	+0.8	1905	2345	-2.0
20	0351	0649	+1.8	0959	1246	-1.3	1611	1833	+1.0	2024
21		0043	-2.2	0441	0734	+2.0	1018	1331	-1.8	1717	1937	+1.3	2132
22		0134	-2.5	0525	0815	+2.2	1040	1410	-2.4	1808	2032	+1.7	2231
23		0220	-2.7	0606	0854	+2.4	1107	1444	-3.1	1854	2122	+2.0	2326
24		0304	-2.8	0646	0934	+2.6	1139	1514	-3.6	1939	2211	+2.3
25	0020	0348	-2.8	0726	1016	+2.7	1214	1545	-4.1	2024	2301	+2.4
26	0113	0436	-2.7	0807	1059	+2.7	1252	1618	-4.3	2111	2351	+2.5
27	0208	0526	-2.4	0849	1143	+2.5	1332	1657	-4.5	2200
28		0041	+2.5	0306	0620	-2.1	0932	1229	+2.4	1415	1739	-4.3	2252
29		0134	+2.4	0408	0717	-1.7	1018	1317	+2.1	1501	1826	-4.1	2347
30		0230	+2.2	0518	0819	-1.4	1110	1407	+1.8	1551	1918	-3.5
31	0046	0331	+2.1	0636	0925	-1.1	1214	1504	+1.5	1648	2033	-2.8

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	November, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0149	0438	+2.0	0753	1030	-1.1	1340	1610	+1.2	1756	2214	-2.4
2	0254	0545	+1.9	0853	1133	-1.4	1520	1727	+1.0	1919	2327	-2.1
3	0355	0645	+2.0	0938	1233	-1.7	1641	1848	+1.1	2045
4		0031	-2.0	0348	0636	+2.0	0914	1225	-2.1	1643	1856	+1.4	2059
5		0026	-2.0	0434	0719	+2.1	0945	1308	-2.5	1734	1950	+1.6	2159
6		0115	-2.0	0513	0757	+2.1	1013	1346	-2.9	1817	2036	+1.8	2251
7		0159	-2.0	0547	0831	+2.0	1040	1422	-3.1	1857	2119	+1.9	2339
8		0243	-2.0	0617	0904	+2.0	1108	1456	-3.2	1934	2201	+2.0
9	0026	0328	-1.8	0647	0938	+2.0	1137	1529	-3.4	2010	2242	+2.0
10	0114	0414	-1.7	0718	1013	+1.8	1207	1600	-3.4	2045	2322	+2.0
11	0204	0502	-1.4	0751	1051	+1.8	1238	1622	-3.2	2121
12		0003	+2.0	0258	0551	-1.1	0827	1130	+1.6	1311	1643	-3.2	2157
13		0044	+1.9	0354	0641	-1.0	0906	1210	+1.5	1346	1713	-3.1	2234
14		0128	+1.8	0455	0735	-0.7	0951	1254	+1.3	1426	1752	-2.9	2314
15		0215	+1.8	0554	0831	-0.7	1046	1345	+1.0	1513	1840	-2.5	2358
16		0306	+1.8	0642	0925	-0.8	1154	1444	+0.9	1613	1947	-2.2
17	0046	0359	+1.8	0716	1016	-1.1	1319	1552	+0.9	1729	2151	-2.1
18	0139	0451	+2.0	0745	1104	-1.7	1449	1704	+1.0	1855	2258	-2.1
19	0232	0542	+2.1	0815	1149	-2.2	1557	1814	+1.3	2013	2357	-2.1
20	0324	0630	+2.2	0847	1230	-2.9	1652	1915	+1.7	2120
21		0050	-2.2	0413	0716	+2.4	0922	1307	-3.5	1743	2009	+2.0	2222
22		0141	-2.2	0501	0802	+2.5	1000	1344	-4.1	1832	2100	+2.3	2320
23		0231	-2.2	0549	0847	+2.5	1041	1421	-4.5	1920	2152	+2.5
24	0017	0323	-2.1	0636	0934	+2.5	1123	1501	-4.6	2009	2243	+2.6
25	0114	0418	-2.0	0725	1021	+2.4	1207	1545	-4.6	2059	2333	+2.7
26	0213	0514	-1.7	0815	1110	+2.2	1253	1633	-4.3	2148
27		0024	+2.6	0313	0610	-1.5	0909	1159	+2.0	1341	1723	-4.1	2237
28		0115	+2.4	0414	0708	-1.4	1008	1250	+1.7	1431	1818	-3.5	2325
29		0208	+2.2	0515	0807	-1.4	1116	1345	+1.4	1527	1929	-2.8
30	0012	0304	+2.1	0613	0905	-1.4	1238	1449	+1.1	1633	2045	-2.2

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.

Alcatraz Island, 0.5 mile north of
Predicted Tidal Current	December, 2007
Flood Direction, 066 True.	Ebb (-)Direction, 284 True.
NOAA, National Ocean Service

Current is somewhat rotary, turning counterclockwise.

	Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current		Slack Water	Maximum Current
Day	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots	Time h.m.	Time h.m.	Veloc knots
1	0100	0400	+2.0	0704	1001	-1.5	1405	1604	+1.0	1753	2151	-1.8
2	0150	0456	+1.9	0747	1055	-1.8	1523	1726	+1.0	1924	2251	-1.5
3	0239	0548	+1.8	0824	1146	-2.1	1625	1838	+1.2	2046	2348	-1.4
4	0325	0634	+1.8	0857	1232	-2.5	1716	1934	+1.4	2152
5		0042	-1.4	0407	0714	+1.8	0927	1314	-2.8	1800	2022	+1.7	2248
6		0131	-1.4	0446	0751	+1.8	0957	1352	-3.1	1840	2105	+1.8	2340
7		0219	-1.4	0524	0827	+1.8	1028	1429	-3.2	1918	2146	+2.0
8	0029	0307	-1.3	0602	0905	+1.8	1100	1506	-3.4	1955	2226	+2.0
9	0117	0355	-1.3	0642	0944	+1.8	1133	1540	-3.5	2030	2305	+2.1
10	0205	0444	-1.1	0722	1024	+1.7	1208	1609	-3.5	2105	2343	+2.2
11	0250	0532	-1.1	0804	1106	+1.6	1244	1631	-3.5	2138
12		0020	+2.2	0332	0619	-1.0	0849	1148	+1.5	1322	1659	-3.5	2210
13		0059	+2.2	0408	0705	-1.0	0938	1233	+1.4	1404	1737	-3.2	2243
14		0140	+2.2	0443	0752	-1.1	1032	1322	+1.3	1453	1822	-2.9	2318
15		0224	+2.2	0517	0839	-1.3	1134	1419	+1.1	1551	1920	-2.5	2358
16		0312	+2.1	0555	0927	-1.7	1249	1524	+1.0	1704	2052	-2.1
17	0044	0403	+2.1	0636	1014	-2.1	1414	1636	+1.1	1832	2217	-1.8
18	0135	0456	+2.1	0718	1101	-2.5	1532	1751	+1.3	1958	2324	-1.7
19	0231	0550	+2.2	0801	1149	-3.2	1636	1900	+1.7	2115
20		0026	-1.7	0328	0643	+2.2	0845	1237	-3.6	1733	1958	+2.0	2223
21		0123	-1.7	0425	0734	+2.3	0930	1324	-4.2	1826	2052	+2.3	2324
22		0218	-1.7	0522	0824	+2.4	1016	1410	-4.5	1916	2143	+2.5
23	0022	0313	-1.7	0618	0914	+2.3	1103	1458	-4.6	2004	2233	+2.7
24	0117	0409	-1.7	0714	1004	+2.2	1151	1549	-4.5	2051	2321	+2.7
25	0209	0503	-1.7	0811	1054	+2.1	1239	1640	-4.3	2135
26		0008	+2.7	0259	0555	-1.7	0908	1144	+1.9	1327	1729	-3.9	2217
27		0053	+2.5	0346	0646	-1.7	1006	1234	+1.7	1417	1819	-3.4	2255
28		0137	+2.4	0432	0737	-1.7	1107	1326	+1.4	1511	1912	-2.8	2329
29		0223	+2.2	0516	0829	-1.7	1215	1425	+1.1	1612	2012	-2.1
30	0001	0309	+1.9	0601	0920	-1.7	1332	1534	+0.9	1726	2113	-1.7
31	0033	0320	+1.8	0645	1012	-1.8	1342	1618	+0.9	1859	2213	-1.3

All times listed are in Local Time, Daylight Saving Time has been applied when appropriate. All speeds are in knots.