OPNAV FORM 3144-1 (9-64) 0107-714-8100 CONFIDENTIAL DEPARTMENT OF THE NAVY SHIP WEATHER OBSERVATION SHEET USS REXBURG (PCE-855) DATE (GMT) SUNDAY 17 DECEMBER 1967 AT PASSAGE FROM SOUTHERN CALIFORNIA OR TO AREAS TABLE I TIME (GMT) WINDS IF ESTIMATED VISIBILITY (Miles) WEATHER SYMBOLS BAROMETER (Inches) TEMPERATURE (Degrees and tenths) CLOUDS SEA WATER TEMP. (Degrees and tenths) SEA WAVES SWELL WAVES Direction True Force (Knots) Amount (Feet) Height Type Direction True Period (Seconds) Height (Feet) 00 340 30 10 OVC 29.85 54.8 50.8 10 3500 ST 61.0 335 6 3 340 8 6 01 340 28 8 BKN 29.84 54.0 50.0 9 3500 ST 60.0 345 6 3 350 10 8 02 340 28 8 BKN 29.82 53.8 49.0 9 3500 ST 60.0 320 5 2 340 8 6 03 325 33 8 BKN 29.80 53.0 49.0 8 3500 ST 60.0 320 5 2 340 8 6 04 320 33 9 BKN 29.78 53.0 49.0 7 3500 ST 60.0 320 5 2 340 8 6 05 330 29 7 BKN 29.78 53.0 48.8 7 3500 ST 60.0 310 5 3 320 8 7 06 330 31 6 H 29.78 52.8 48.8 8 3000 ST 60.0 315 5 3 320 10 8 07 340 31 7 H 29.80 53.0 49.0 8 3000 ST 58.0 320 4 3 325 10 8 08 320 34 8 BKN 29.76 53.4 49.2 7 3000 ST 60.0 320 4 3 330 10 8 09 320 36 8 BKN 29.74 53.0 48.8 8 3000 ST 60.0 310 4 3 320 10 8 10 320 34 8 BKN 29.76 53.2 47.8 8 3000 ST 58.0 310 4 3 320 10 8 11 320 34 8 BKN 29.76 52.0 48.0 8 3000 ST 58.0 330 4 3 320 10 8 12 340 25 8 SCT 29.76 53.0 49.0 5 3000 ST 60.0 300 4 3 320 10 8 13 350 25 8 SCT 29.76 53.0 49.0 5 3200 ST 60.0 310 6 5 330 10 12 14 350 30 8 SCT 29.79 53.0 49.0 5 3000 ST 60.0 310 6 5 330 10 12 15 350 27 8 SCT 29.78 52.5 47.5 4 3000 ST 60.0 310 6 5 330 10 12 16 350 31 8 BKN 29.82 52.6 47.8 6 3500 SC 59.0 310 5 4 320 10 8 17 355 25 9 SCT 29.84 54.5 48.0 24 3200 ST 59.0 310 6 5 320 10 8 18 355 27 10 BKN 29.88 53.8 48.4 7 3000 CU 59.0 340 5 4 350 10 8 19 355 21 10 BKN 29.89 57.0 50.6 7 3000 SC 59.0 320 4 3 340 8 7 20 320 21 10 OVC 29.88 64.8 49.8 9 3200 SC 60.0 310 4 3 330 8 7 21 320 23 10 OVC 29.86 56.8 50.8 9 3200 SC 60.0 300 4 3 330 8 7 22 330 23 10 BKN 29.84 53.8 50.8 8 3000 SC 60.0 300 4 3 330 8 7 23 320 21 10 BKN 29.84 55.0 49.8 8 3000 ST 60.0 300 4 2 320 8 8 TABLE II SYNOPSIS OBSERVATIONS FIRST GROUP OF MESSAGE POSITION OF SHIP WIND WEATHER PRESSURE CLOUDS 3-HOUR PRESSURE TENDENCY SIGNIFICANT CLOUD Day of Week (1-7) TIME (GMT) Total Cloud Amt. (Coded) Visi-bility (90-99) Present (00-99) Barometer Corrected (Mb) AIR TEMP. (°C) Amount of Low Cloud (%CL) Height of Low Cloud (%CL) Height of Mid Cloud (%CM) Type of CH (0-9) Course of Ship (0-9) Speed of Ship (0-9) Characteristic Change in Pressure (0-8) Indicator Amount (Eighths) Height 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 Y Q La Lb Lc GG N dd ff vv ww W ppp TT Nh Cl h Cm Ch D V a pp Indicator Amount Type Height SHIP 1 1 342 231 00 8 34 30 98 05 2 108 13 8 6 6 1 247 10 8 8 7 35- SHIP 1 1 342 217 06 6 33 31 97 05 2 085 12 6 6 5 0 0 247 07 6 7 30 SHIP 1 1 335 214 18 4 34 25 97 01 1 078 12 4 6 5 0 0 442 07 8 7 30 SHIP 1 1 335 223 18 6 36 27 98 02 1 119 12 6 2 5 0 0 642 34 6 8 30 AIR-SEA DIFF. (Coded) DEW POINT (°C) SEA WAVES SWELL WAVES ICE ACCRETION SEA ICE DO NOT TRANSMIT Indicator Direction Height Period Coded) Direction Height Period Coded) Source Thickness Rate Indicator Kind Effect Bearing Distance Orientation A1 A2 A3 Dry Bulb (Degrees and tenths) Wet Bulb (Degrees and tenths) Sea Water Temp. (Degrees and tenths) 0 Td Ta Tb Tc da db dc Pa Pw Ha Ib Ea Ec Eb Rs C2 K Di r e 0 57 06 1 34 4 4 2 ICE Celsius Celsius Celsius 0 58 07 1 32 5 5 2 ICE 12.7 10.4 16.1 0 58 07 1 32 5 5 2 ICE 11.6 9.3 15.6 0 56 06 1 35 5 5 2 ICE 11.7 9.4 15.6 12.1 9.1 15.0 REMARKS COP EXAMINED J. T. McElhany LTJG USN, NAVIGATOR CONFIDENTIAL