Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 6APR 2026 Clouds Bases and Tops are now agl HR Valid 2m Tmp 2m Dpt 10m Dir 10m Spd TPrcp CPrcp 1000-500 500mb 850mb 500mb MSLP TCC PRS WX Low Middle High Max Min Sfc Snowfall PWAT 925mb Deg F Deg F deg kt in. in. Thk GPH Tmp Tmp mb % TEXT Clouds Clouds Clouds Tmp Tmp Vis in in Tmp 0 04/06 12Z 52 49 265 3 0.00 0.00 559 573 12.5 -16.2 1017.1 88 CLR 000FEW000 000BKN000 **** **** 15.0 0.0 0.552 16.0 3 04/06 15Z 52 49 261 3 0.00 0.00 558 573 12.4 -16.3 1018.4 56 006FEW012 CLR 269SCT353 53 50 14.7 0.0 0.525 15.6 6 04/06 18Z 59 48 285 5 0.00 0.00 558 574 12.5 -16.6 1019.1 56 006SCT014 CLR 268SCT351 60 50 15.0 0.0 0.486 14.9 9 04/06 21Z 61 48 295 9 0.00 0.00 559 574 12.6 -16.1 1018.1 0 CLR CLR CLR 62 59 15.0 0.0 0.460 15.0 12 04/07 00Z 59 47 290 9 0.00 0.00 559 574 12.9 -15.0 1017.5 0 CLR CLR CLR 62 58 15.0 0.0 0.456 15.2 15 04/07 03Z 52 48 275 6 0.00 0.00 559 574 13.2 -14.1 1018.3 5 CLR CLR 364FEW387 59 52 14.6 0.0 0.476 14.6 18 04/07 06Z 51 48 246 3 0.00 0.00 559 575 13.2 -13.5 1018.7 12 013FEW015 CLR 344FEW396 59 51 13.7 0.0 0.520 14.6 21 04/07 09Z 50 48 250 3 0.00 0.00 559 575 13.1 -13.5 1018.5 53 011FEW015 CLR 304SCT391 51 50 15.0 0.0 0.496 14.0 24 04/07 12Z 52 48 244 4 0.00 0.00 559 574 12.5 -14.0 1018.5 64 011SCT017 CLR 296SCT396 52 50 15.0 0.0 0.450 12.8 27 04/07 15Z 53 49 230 3 0.00 0.00 558 574 12.5 -14.4 1019.2 51 011SCT016 CLR 347FEW388 53 51 15.0 0.0 0.447 13.0 30 04/07 18Z 60 47 276 5 0.00 0.00 559 575 12.5 -14.5 1019.4 66 011SCT017 CLR 357SCT413 60 51 15.0 0.0 0.451 12.7 33 04/07 21Z 63 46 277 7 0.00 0.00 560 575 12.7 -14.3 1018.2 90 CLR CLR 369BKN416 63 60 15.0 0.0 0.501 14.0 36 04/08 00Z 61 46 280 9 0.00 0.00 560 574 13.0 -14.4 1017.0 76 CLR CLR 368BKN415 64 60 15.0 0.0 0.629 14.5 39 04/08 03Z 54 47 255 3 0.00 0.00 560 574 12.8 -14.6 1017.1 55 CLR CLR 333SCT405 61 54 15.0 0.0 0.750 15.8 42 04/08 06Z 53 48 230 4 0.00 0.00 559 574 12.7 -14.7 1017.4 72 CLR 127FEW148 327BKN401 61 53 15.0 0.0 0.836 15.4 45 04/08 09Z 53 47 209 3 0.00 0.00 558 572 12.2 -15.6 1016.6 70 111FEW121 121FEW143 324BKN391 54 53 15.0 0.0 0.880 15.2 48 04/08 12Z 53 48 194 3 0.00 0.00 557 571 11.8 -15.9 1016.3 61 111FEW120 120FEW135 336BKN384 54 53 15.0 0.0 0.871 14.4 51 04/08 15Z 55 48 174 4 0.00 0.00 556 570 11.3 -16.2 1016.8 51 CLR CLR 308SCT367 55 53 15.0 0.0 0.869 13.9 54 04/08 18Z 63 49 265 4 0.00 0.00 557 571 10.9 -16.5 1016.6 27 CLR CLR 308SCT366 64 52 15.0 0.0 0.867 13.5 57 04/08 21Z 66 52 285 8 0.00 0.00 557 570 10.8 -16.7 1015.7 2 CLR CLR 345FEW367 66 64 15.0 0.0 0.884 14.5 60 04/09 00Z 64 53 284 9 0.00 0.00 557 569 10.7 -16.7 1014.3 4 CLR CLR 344FEW364 66 63 15.0 0.0 0.859 13.8 63 04/09 03Z 56 54 290 5 0.00 0.00 556 568 10.4 -16.9 1014.6 6 CLR CLR 340FEW373 63 56 15.1 0.0 0.832 12.9 66 04/09 06Z 56 54 270 3 0.00 0.00 555 568 9.5 -16.8 1015.2 51 CLR CLR 288BKN377 63 55 15.1 0.0 0.841 12.0 69 04/09 09Z 55 53 229 1 0.00 0.00 554 567 9.0 -17.2 1014.5 100 008FEW015 CLR 268OVC372 56 55 15.0 0.0 0.828 11.3 72 04/09 12Z 54 53 294 0 0.00 0.00 553 565 8.2 -17.5 1013.8 97 007FEW019 CLR 266BKN353 55 54 15.0 0.0 0.887 10.8 75 04/09 15Z 56 54 137 1 0.00 0.00 553 564 7.6 -17.6 1014.0 99 005FEW025 230FEW239 250OVC350 56 54 15.0 0.0 0.891 10.6 78 04/09 18Z 62 54 236 2 0.00 0.00 552 564 7.3 -18.5 1014.0 100 010FEW032 210SCT239 244OVC356 62 54 14.4 0.0 0.895 10.7 81 04/09 21Z 64 54 260 8 0.01 0.01 552 563 6.9 -18.1 1013.0 100 -RA 023SCT041 189OVC239 239OVC305 65 62 10.5 0.0 0.888 11.7 84 04/10 00Z 63 53 259 12 0.01 0.01 552 562 7.1 -18.9 1012.1 70 -RA 025SCT043 194BKN238 238BKN298 65 62 13.2 0.0 0.752 11.2 87 04/10 03Z 56 53 275 6 0.00 0.00 550 561 6.8 -19.8 1012.4 2 026FEW028 CLR CLR 63 56 15.0 0.0 0.622 10.2 90 04/10 06Z 54 52 281 1 0.00 0.00 549 560 6.0 -21.1 1013.2 1 FEW CLR CLR 63 54 15.0 0.0 0.741 10.0 93 04/10 09Z 53 51 119 2 0.00 0.00 548 559 5.8 -20.2 1012.8 5 071FEW083 CLR CLR 54 53 15.0 0.0 0.736 9.7 96 04/10 12Z 53 50 143 5 0.00 0.00 548 558 6.1 -20.3 1012.1 5 071FEW085 CLR CLR 54 53 15.0 0.0 0.723 10.1 99 04/10 15Z 55 49 116 4 0.00 0.00 548 558 6.0 -20.6 1012.3 7 071FEW090 CLR CLR 55 52 15.0 0.0 0.688 10.3 102 04/10 18Z 64 48 242 2 0.00 0.00 548 558 5.4 -20.7 1012.3 6 072FEW088 CLR CLR 64 52 15.0 0.0 0.691 11.1 105 04/10 21Z 65 48 270 8 0.00 0.00 549 559 6.3 -20.7 1011.2 12 070FEW091 CLR CLR 66 63 15.0 0.0 0.715 12.4 108 04/11 00Z 63 49 300 7 0.00 0.00 549 558 7.1 -20.4 1010.1 48 058SCT098 CLR CLR 67 60 15.0 0.0 0.833 12.3 111 04/11 03Z 56 50 304 4 0.00 0.00 549 558 6.5 -20.1 1010.3 65 058BKN116 126FEW141 CLR 63 57 15.0 0.0 0.821 11.9 114 04/11 06Z 55 50 287 3 0.00 0.00 549 558 7.1 -20.6 1010.6 65 054BKN116 123FEW138 CLR 63 55 15.0 0.0 0.743 11.7 117 04/11 09Z 54 50 221 2 0.00 0.00 548 557 7.0 -21.1 1010.7 72 076FEW093 220SCT236 237BKN290 55 54 14.8 0.0 0.797 11.2 120 04/11 12Z 54 50 306 1 0.00 0.00 548 557 7.0 -21.3 1010.0 78 071FEW096 208SCT229 236BKN277 55 53 15.0 0.0 0.816 10.6 123 04/11 15Z 56 50 251 2 0.00 0.00 549 557 6.4 -21.2 1010.5 77 073BKN101 208SCT237 257FEW302 56 54 15.0 0.0 0.800 10.8 126 04/11 18Z 61 50 285 7 0.00 0.00 549 558 6.6 -20.5 1010.6 69 075BKN099 197SCT236 269FEW302 61 54 15.0 0.0 0.850 10.4 129 04/11 21Z 62 49 275 11 0.00 0.00 550 559 7.0 -19.8 1010.0 37 071SCT107 150FEW181 294FEW311 63 61 15.0 0.0 0.797 11.2 132 04/12 00Z 59 49 278 9 0.00 0.00 551 559 7.5 -19.0 1009.4 23 073FEW108 147FEW176 294FEW311 63 59 15.0 0.0 0.772 12.0 135 04/12 03Z 52 48 274 6 0.00 0.00 549 558 7.8 -18.8 1010.5 25 063FEW086 118FEW133 CLR 59 52 15.0 0.0 0.797 9.9 138 04/12 06Z 52 47 260 11 0.00 0.00 549 558 6.2 -19.5 1011.1 51 022SCT035 118FEW143 307FEW323 58 51 15.0 0.0 0.759 6.4 141 04/12 09Z 52 46 259 7 0.00 0.00 547 556 6.0 -20.1 1011.4 100 005OVC036 120FEW142 296BKN320 53 52 15.0 0.0 0.783 5.8 144 04/12 12Z 52 46 252 6 0.00 0.00 545 554 5.0 -21.7 1011.0 100 006OVC036 118FEW167 271BKN322 53 52 15.0 0.0 0.781 5.8 147 04/12 15Z 52 46 252 6 0.00 0.00 544 554 3.5 -22.2 1012.9 100 -RA 013BKN042 139BKN214 238OVC327 52 50 15.0 0.0 0.774 5.6 150 04/12 18Z 55 45 271 4 0.00 0.00 543 555 2.5 -22.0 1014.2 100 010BKN047 142BKN226 237OVC326 55 50 15.0 0.0 0.758 5.8 153 04/12 21Z 58 45 275 8 0.00 0.00 545 557 3.5 -21.7 1014.2 100 035BKN046 163OVC233 236OVC326 58 55 15.0 0.0 0.722 7.1 156 04/13 00Z 57 45 281 10 0.00 0.00 547 559 3.7 -20.1 1014.0 97 036SCT046 149BKN232 237BKN322 58 55 15.0 0.0 0.715 7.2 159 04/13 03Z 51 45 281 7 0.00 0.00 548 561 4.7 -19.3 1015.8 10 081FEW093 140FEW172 274FEW313 57 51 15.0 0.0 0.757 6.9 162 04/13 06Z 50 46 278 6 0.00 0.00 549 563 5.4 -18.5 1017.2 8 076FEW092 141FEW173 275FEW315 57 50 15.0 0.0 0.709 6.6 165 04/13 09Z 52 45 270 6 0.00 0.00 550 565 5.6 -17.9 1017.9 61 007BKN028 CLR 320FEW332 52 50 15.0 0.0 0.696 5.3 168 04/13 12Z 52 45 255 7 0.00 0.00 550 566 5.9 -17.4 1018.7 81 011BKN029 CLR 297FEW325 53 50 15.0 0.0 0.746 5.2