OPNAV FORM 3160-2 Previous editions obsolete. 540972/64-101 DEPARTMENT OF THE NAVY SHIP WEATHER OBSERVATION SHEET USS MARYSVILLE (EPCEB57) DATE (GMT) 8 JANUARY 19 68 AT PASSAGE FROM N.E. SAN DIEGO CALIF. TO CLASS OP AREA. SECTION I TIME (GMT) V IF ESTIMATED WINDS DIRECTION (True) FORCE (Knots) VISIBILITY (Miles) WEATHER (Symbols) BAROMETER (Inches) TEMPERATURE (Degrees and tenths) DRY BULB WET BULB CLOUDS AMOUNT (Tenths) HEIGHT TYPE SEA WATER TEMP. (Degrees and tenths) SEA WAVES PERIOD (Seconds) HEIGHT (Feet) DIRECTION (True) SWELL WAVES PERIOD (Seconds) HEIGHT (Feet) 00 / 0 8 OVC 30.04 59 59 10 1500 CU 01 290 1 8 OVC 30.04 57 57 10 1500 CU 02 / 0 9 OVC 30.05 57 57 10 2000 CU 03 / 0 10 OVC 30.05 56 56 10 2000 CU 04 / 0 8 OVC 30.06 56 51 10 2000 CU 05 / 0 8 OVC 30.06 51 50 10 2000 CU 06 / 8 R 30.06 53 48 10 2000 CU 07 / 0 8 R 30.06 52 52 10 2000 CA 08 / 0 8 CLR 30.06 52 52 10 2000 CU 09 / 0 8 CLR 30.07 52 59 10 2000 CU 10 / 0 8 CLR 30.08 52 50 10 2000 CU 11 / 0 8 CLR 30.07 52 52 10 2000 CU 12 / 0 4 SCT 30.10 53 52 3 1500 CCL 13 280 2 8 SCT 30.11 53 51 3 2000 CU 14 280 2 7 BKN 30.11 53 52 8 1500 CU 15 290 2 8 SCT 30.12 53 52 3 2000 CU 16 / 0 8 CLR 30.18 55 54 2 1000 CU 17 290 1 8 CLR 30.19 57 56 1 1000 CU 18 / 0 8 CLR 30.20 60 60 0 0 0 19 - 0 4 CLR 30.17 64 59 - - - 20 280 5 8 CLR 30.15 65 59 - - - 21 210 5 8 CLR 30.17 67 59 2 3200 (T) 22 290 5 8 SCT 30.16 67 59 2 3600 CU 23 290 3 8 SCT 30.18 65 58 1 3000 CU SECTION II SYNOPTIC OBSERVATIONS FIRST GROUP OF MESSAGE INDICATOR POSITION OF SHIP LATITUDE (Degrees and tenths) QUARTER UP GLOBE LONGITUDE (Degrees and tenths) TIME (GMT) DAY OF MONTH WIND INDICATOR Total Cloud Amt. (Coded) WIND DIRECTION (True) (00-36) SPEED (Knots) VISIBILITY (90-99) WEATHER PRESSURE PRESENT (00-99) PAST (0-9) BAROMETER CORRECTED (Mb) AIR TEMP. (°C) CLOUDS HEIGHT OF LOW CLOUD (0-9) TYPE OF CL (0-9) HEIGHT OF MID CLOUD (0-9) TYPE OF CM (0-9) HEIGHT OF HIGH CLOUD (0-9) TYPE OF CH (0-9) COARSE OF SHIP (0-9) SPEED OF SHIP (0-9) 3-HOUR PRESSURE TENDENCY CHARACTER AMOUNT OF CHANGE (No. of tenths) INDICATOR AIR-SEA DIFF. (Coded) DEW POINT (°C) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 99 La La La Qc Lo Lo Lo Lo YY GG N dd ff VV ww W ppp TT Nh CL h CM Ds Vs a pp Ts Ts Td Td SHIP 99 00 SHIP 99 06 SHIP 99 12 SHIP 99 18 INDICATOR SEA WATER TEMPERATURE (Degrees and tenths) ICE ACCRETION THICKNESS SEA WAVES SWELL WAVES SEA ICE DO NOT TRANSMIT TENTAT VALUE AIR TEMP. °C SOURCE RATE INDICA-TOR PERIOD HEIGHT (Coded) PERIOD HEIGHT (Coded) INDICATOR KIND EFFECT BEARING DISTANCE ORIENTA-TION DRY BULB WET BULB SEA-WATER TEMPERATURE (Degrees and tenths) (Degrees and tenths) (Degrees and tenths) (Degrees and tenths) 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 A1 A2 A3 1 Tw Tw Tw Tr Is Es Es Rs Pw Pw Hm Hm dm dm Pw Hm Hw ICE C2 K D1 r e Celsius Celsius Celsius 1 1 1 1 2 2 2 2 3 3 3 3 REMARKS EXAMINED USN, NAVIGATOR C-5997